Overhead crane Malaysia introduction The electric overhead crane has commonly used in warehouse (indoor facilities) or outdoor material storage areas. It’s also common to see this overhead crane in railway or shipping port for transporting storage or container units from the ground to the vehicles. It’s specially designed for industry heavy-use, lifting and moving heavy goods and built with the mechanisms to navigate in both directions horizontally and also allowing lifting or lowering the goods, which can be used to move extremely heavy goods from ground to lifting equipment easily. Overhead crane Malaysia technology Single Girder cranes are the most widely used overhead crane Malaysia. The low headroom monorail hoist mounted on the single girder construction offers a compact design which will maximize high hook position with a crane that is both economical and reliable. It’s also known as bridge cranes or industrial crane, using the parallel runways to navigate horizontally. It’s operated by electric and can be controlled using an easy-to-use pendant control. It’s designed for heavy use and very high lifting capacity. Overhead crane Malaysia advantages Our product and service offering include the design, manufacture, testing and servicing of electric overhead traveling cranes (EOTC). No matter the size or environment, we offer a variety of options to ensure your application meets the desired production process. Whether a single or double girder top running crane or an underslung single girder traveling crane, our range of Verlinde wire rope and chain hoists pair perfectly to ensure you receive maximum service from our products. Overhead crane Malaysia applications We produce overhead cranes of all sizes that can handle loads of any capacity, and work both directly with end users and trade resellers – no application is too big or too small. Every Dongqi overhead crane is custom designed and built to suit the specific nature of the task in hand.

About 72 fatal crane accidents happen each year. It’s no secret that working with big machinery can be dangerous. That’s why safety is always a priority. Preventive lifting equipment methods should be taken to ensure safety while using an overhead. Here’s an overhead crane maintenance checklist to follow. What The Checklist Includes An overhead crane maintenance checklist includes three different checkouts: 1. Area Check This check is to ensure the area around the crane is clear. Some of these activities include: Know the location of the crane disconnect switch. Make sure there are no warning signs present Check to make sure workers are not working near the area Look ahead to verify there is nothing around the area where the load will be moved. Check to make sure the below-the-hook devices are designed for the crane in use and will safely be able to lift the load. Make sure that the load capacity is equal to or less than the capacity of the crane. 2. Preliminary Check Once the area check has been performed, the operator can begin the preliminary check of the equipment. This should be done before he or she touches any controls. Check the electric systems, bridge, runway, trolley, and hoist to make sure there are no loose, broken, or damaged parts. Make sure the wire rope is seated in the drums grooves properly. Ensure that the open power source is secure and there is nothing close. Check the strain reliefs or brushings to make sure that no wires are pulled. Make sure there is no damage to the pushbutton pendant. 3. Equipment Safety Check After the preliminary check is complete, the crane operator must perform a safety check of the crane itself to make sure it is in working order. This is to ensure there is no potential for malfunction. Several different categories need to be signed off when checking the equipment. Check all powered systems. Including, making sure the power button is not sticky, the hoist hook rises, and the upper limit switch is functioning properly. Make sure all hooks are in working condition. There should be no more than 10% wear on any part of the hook. Ensure there is no damage or cracks on the bottom block assembly. The sheaves should be able to rotate freely and smoothly. Make sure there are no broken wires on the wire rope and load chain. There should be no kinks, cuts, or thermal damage to any ropes or chains. Overhead Crane And Hoist Safety And Maintenance Checklist SAFETY INSPECTION REQUIREMENTS Overhead crane and hoists inspections are mandated by both OSHA and ANSI with the various requirements outlined in Federal OSHA 1910.179 regulations as well as various ANSI B30 standards. The types of inspections required in OSHA and ANSI are fairly consistent within the regulation and standards books and include: initial inspection, periodic inspection, frequent inspection, and daily/shift. “Initial” Inspections: includes a load test of up to 125% of rated capacity and thorough hands-on inspection and operational check of the crane or hoist equipment. The Initial Inspection must be performed when the equipment is installed and whenever repairs are made to critical load-bearing components. The Initial documentation must be maintained for the life of the equipment along with the repair history. “Periodic” Inspections: include an operational check and thorough hands-on inspection of the crane or hoist equipment. The Periodic Inspection must be performed as frequent as monthly on equipment that has usage that would create the potential for frequent repair and safety issues to as little as annually on seldom-used equipment that has little to no potential for repair and safety issues. The majority of equipment will require quarterly to monthly periodic inspections due to manufacturer requirements and frequency of found defects. Periodic documentation must be also be maintained for the life of the equipment. “Frequent” Inspections: Include an operation check as well as a visual inspection of critical items listed in the codes and standards such as limit switches, wire rope, chain, hooks, etc. Frequent inspections are required at least monthly and generally done in months when the periodic inspections will not be performed.

3 ton overhead crane is a good choice when you choose it for light weight goods lifting. If you would like to get some detailed information about our 3 ton single girder overhead crane for sale and 3 ton gantry crane for sale, you can just contact us and tell us your needs and we will supply you with perfect overhead crane solutions. 3 Ton single girder overhead crane machine for Sale As a main type of overhead crane, single girder overhead crane is ideal solution for lift, move or transport materials. Commonly, single girder bridge crane is regarded as a kind of light duty lifting equipment match with CD1, MD1 type electric hoist. In order to best meet the demands of productivity and safety, the single beam bridge crane is widely used in workshop, warehouse, and yard. 3 Ton Gantry Crane for Sale 3 ton gantry crane is designed and developed with the characteristics of heavy duty compared with the small machinery, gantry type crane is mainly operated in the outdoor environment for the bulk cargo handling. 3 Ton jib crane for sale Jib cranes are the optimal lifting equipment for short transfer applications.DQCRANES jib cranes can lift and transport materials in semi circles or full circles around their support structures to provide localized material handling in work cells, to supplement a large overhead crane system, to transfer materials from one work cell to another, and to lift a line load up to the rated capacity safely. 3 Ton Electric Hoist for Sale Electric hoist and electric hoist are widely used in various industries for material handling. The electric hoists series offered by Dongqi include the chain electric hoists,Double speed electric hoists, wire rope electric hoists, European type electric hoists, explosion proof electric hoists, metallurgical electric hoist, and mini electric hoists, etc. 3 ton overhead crane is a small and light overhead crane. Sometimes, it also be called portable or mobile bridge crane, which is adjustable and movable. A 3 ton overhead crane is widely used in factory, warehouse, workstation, stuff yard to lift, move and load materials. According to different configuration, the 3 ton overhead crane can be divided into under running overhead crane and top running bridge crane. When the space of factory or warehouse is not enough, a under running overhead crane must be your best choice.

Advantages of material handling overhead crane Beautiful appearance, outstanding design Reasonable structure, rigidly steel Advanced technology, professional engineer All-around guidance, profound after-sale service Simple installation and convenient maintenance High safety and work efficient Low clearance, light dead weight Save warehouse space and spending budget maximum High productivity and ergonomics Convenient maintenance, Competitive price How should material handling overhead crane operators move loads safely? Ensure proper planning and careful execution each step of the way Avoid stopping and/or starting suddenly. This causes the load to swing, which can damage equipment nearby and be very dangerous to workers in the immediate area. For motorized systems, keep both hands on the pendant control. Releasing the control button—especially on accident—will cause the electric brake to automatically set. Remember that the pendant control—for overhead bridge cranes—moves the load in three directions: forward and backward, side to side, and up and down. Hold the device in the first position in order to drift into the correct position. Remember, crane machine ALWAYS lift the load straight up. Do not transfer the load until you have raised it to the appropriate clearance height.

As a crane manufacturer, Dongqi Hoist and Crane is able to provide you types of cranes. Customized free crane drawing design for your application. Overhead crane dwg, gantry crane dwg, or jib crane dwg are offered freely before ordering. Give me your crane requirements, Get your customized crane drawing. Overhead crane and crane drawings Overhead cranes is one the most frequently used material handling crane, which is the main cranes of Dongqi Hoist and Crane. We is able to provide types of overhead cranes, used in various industries and fields. In the following, the main types of overhead crane and related crane drawings are presented for you. Single girder overhead crane Single girder overhead crane as a main type of overhead crane, is an ideal solution for handling materials. Usually single girder overhead crane is regarded as a kind of light duty lifting equipment match with CD1, MD1 type electric hoist. Types of single girder overhead cranes are designed to meet the demands of demands of productivity and safety. The single girder overhead crane is widely used in workshop, warehouse, and yard. Explosion proof overhead crane Explosion proof overhead crane and overhead crane dwg LD single girder overhead crane LD single girder overhead crane and overhead crane dwg LDP single girder overhead crane LDP single girder overhead crane overhead crane and overhead crane dwg LDY overhead crane overhead LDY overhead crane overhead crane and overhead crane dwg LX overhead crane overhead crane and overhead crane dwg LX overhead crane overhead crane and overhead crane dwg Double girder overhead crane Double girder overhead crane doubles your material handling efficiency. Dongqi double girder overhead crane for sale good quality and price. Check the Chinese double girder overhead crane now. Double girder overhead crane is designed to handle heavy loads and objects over 20 tons, thus, a double girder overhead crane also refers to a heavy duty overhead crane. Hook double girder overhead crane is one of the mostly used heavy material handling equipment with the lifting capacity from 5 ton to 550 ton, working class up from A4 to A7. According to different lifting tools, the double girder overhead crane can be grouped into hook overhead crane, gab bucket overhead crane, electromagnetic overhead crane, soaking pit overhead crane, etc. According to application environment, the double girder overhead crane can be grouped in explosion proof overhead crane to reduce explosion risk, foundry overhead crane and the insulation overhead crane to increase handling safety, etc.

Rail cranes such as overhead crane and gantry crane are installed on crane rails. Crane rail installation can affect the travelling of your overhead and gantry cranes. Check rail installation tips for your rail crane manufacturers! Rail installation for overhead crane For overhead crane, the crane rail are paved on supporting beam, which include steel beam and concrete beam. According to overhead crane drawing, settle down the position, altitude. Before install rail, firstly inspect groove, section, straight line, and warp of the crane rail, after qualified, pave the crane rail. And find out rail datum line. Single girder overhead crane parts assembly Double girder overhead crane parts assembly FEM overhead crane parts assemblyCrane rail on supporting beam If the crane rail is paved on supporting beam, the crane rail center distance and supporting beam center distance, their deviation should be within 10mm, and not bigger than beam half thickness. Crane rail installed on supporting beam of overhead crane Crane rail is fixed on supporting beam, rail bottom should be sole laying on beam top. If there is space and long is more than 200mm, there should be padded, pad length is more than 100mm, width is 10—20mm wider than rail bottom. Each set of pad must not more than 3 layers. Pads are welded to supporting beam. The deviation between cane rail center distance and installing datum line, should be not more than 5mm for general gantry crane. If the crane span length is not more than 10m, rail center distance allow a deviation of ±3.0 mm. if crane span is more than 10m, rail center distance allow a deviation of ±15 mm. Following is formula: △S=±[3+0.25(S-10)] : △S: crane span deviation(mm) S—rail center distance deviation(m) The crane rail connecting joint should be stagger, the staggered distance is not same as wheel gauge. And on joint, the supporting point should be at span’s 1/3～1/4. Crane rail i-beam flange weld bevel butt weld, web has same strength through welding butt weld, after welding, the welding surface is leveling. Artifacts correction for the inclination of the I beam flange delta < / 80 b, b is I beam flange width. Torsion of Angle steel, i-beam vector △h≤L/1000 or less, but shall not be bigger than 5 mm. Local buckling of steel plate rise within a certain range f≤1.5mm. Some steel plate is out of shape, you can correct it by hammer. For some structural steel, there is special Jack to do gagging. If it is difficult, heat straightening is possible, but the heat temperature should be not more than 900°C. Then make holes for bolts on end of crane rail used to connecting by clamps. You should make holes by mechanical not instead of gas cutting. Bolts can’t have crack, rag or nick. At last, pave the crane rail and fix it on supporting beam with welding or bolts platens. The welding is inspected by ultrasonic, require I grade.

Overhead gantry crane uk introduction We provide an extensive range of cranes, for light duty applications and demanding processes. Our standard offering with high quality basic equipment or advanced offering with high-tech features is usually enough; but if it isn’t, we can also provide a tailor-made solution for your processes crane for sale. Overhead gantry crane uk technology Dongqi overhead cranes utilise the latest technology to increase the safety and productivity of our customer’s business. We are working on the production frontline of industrial customers on every continent, and our Smart Features represent the most advanced crane functionality on the market today. Our industrial overhead cranes represent high-level Konecranes quality starting from a single component all the way to an entire process. Overhead gantry crane uk advantages Increase the safety and productivity of your business Dongqi overhead cranes are available with software-based intelligence, Smart Features, which gives you control over material handling in your production process. They are developed to make the crane operator’s daily work easier and more efficient. Overhead gantry crane uk applications To move extremely heavy or bulky loads through the overhead space in a facility, instead of through aisles or on the floor, an overhead crane (also called an industrial crane, crane, or overhead traveling crane is a machine that lifts, lowers and moves a load horizontally.

Overhead crane update in Philippines introduction We deal in overhead cranes such as single girder overhead crane, double girder crane, jib crane, gantry crane, semi-gantry crane, underhung crane, monorail crane, curved track crane system, free standing crane system and light weight crane system in Philippines. The overhead cranes also called electrical overhead travelling cranes or EOT cranes. We specialize in Design, Manufacturing, Installation and Maintenance of overhead cranes. We follow the CMAA & ASME standards for the Design, Manufacturing, Installation and Maintenance of overhead crane. Overhead cranes are of different duties ranging from 1 hour operating time to 24 hours with variable & constant load conditions. We know your requirements according to your process and nature of work. We provide Chinese crane or European crane according to client requirements crane for sale. Overhead crane update in Philippines technology Single Girder Crane The single girder crane consists of single girder fitted on two end carriages. The end carriages are fitted with wheels that travel on the rail by motors. The electric wire rope hoist or electric chain hoist or manual chain block is under hung on the bridge. The hoist reeving is 2/1 or 4/1 depending on the duty of overhead crane. The power supply is 3 phase and amperage depending on the duty and capacity of the overhead crane used. The electrical system consists of PVC Bus Bar or Powerail Enclosed Conductor Bar and Festoon System with Flat Cable attached to the bridge. The control of single girder crane is by pendant control or wireless remote control system. We have single girder overhead cranes ranges from 250 kg to 15000 kg with lifting height from 4 m to 18m with different overhead crane duties. Double Girder Crane The double girder crane consists of two girders mounted on two or four end carriages depending upon the duty of the overhead crane. The end carriages are fitted with wheels that travel on the rail by LT motors. The electric wire rope hoist or electric chain hoist or manual chain block is mounted on the trolley that travel on the upper sides of bridges on a square bar or rail. The power supply is 3 phase and amperage depending on the duty and capacity of the overhead crane used. The electrical system consists of PVC Bus Bar or Powerail Enclosed Conductor Bar and Festoon System with Flat Cable attached to the bridge. The control of double girder crane is by pendant control or wireless remote control system. We have single girder overhead crane ranges from 5000 kg to 250000 kg with lifting height from 4 m to 18m with different overhead crane duties. Gantry Crane | Goliath Crane The gantry crane or goliath crane may be single girder or double girder depends upon the capacity and duty of the overhead crane. The bridge of gantry overhead crane installed on its four pillars and the pillars are attached with the end carriages that move with the bridge on the rail. The rail is fitted on the floor level. For double girder gantry crane the electric wire rope hoist or electric chain hoist or manual chain block is mounted on the trolley that travel on the upper sides of bridges on a square bar or rail. For single girder gantry crane the electric wire rope hoist or electric chain hoist or manual chain block is under hung on the bridge. The power supply is 3 phase and amperage depending on the duty and capacity of the overhead crane used. The electrical system consists of cable reeling drum and Festoon system with Flat Cable attached to the bridge. The control of gantry crane is by pendant control or wireless remote control system. We have different capacities of gantry overhead cranes ranges from 500 kg to 200000 kg with different overhead crane duties. Semi Gantry Crane | Semi Goliath Crane The semi gantry crane or semi goliath crane is a combination of both girder crane and gantry crane. One end carriage of the crane is move on the floor and other end carriage is move on the gantry bridge. The power supply is 3 phase and amperage depending on the duty and capacity of the overhead crane used. For double girder semi gantry crane the electric wire rope hoist or electric chain hoist or manual chain block is mounted on the trolley that travel on the upper sides of bridges on a square bar or rail. For single girder semi gantry crane the electric wire rope hoist or electric chain hoist or manual chain block is under hung on the bridge. The electrical system consists of cable reeling drum or PVC bus bar system and Festoon system with Flat Cable attached to the bridge. Any electrical system can be use for the long travel of the overhead crane. The control of semi gantry crane is by pendant control or wireless remote control system. We have different capacities of semi gantry overhead cranes ranges from 250 kg to 50000 kg with different overhead crane duties. Pillar Mounted Jib Crane The pillar mounted jib crane is the form of cantilever beam system. The pillar mounted jib overhead crane installed on solid foundation design to bear the load of overhead crane. The jib crane is also called a slewing crane.The electric wire rope hoist or electric chain hoist or manual chain block is under hung on the bridge. The power supply is 3 phase and amperage depending on the duty and capacity of the overhead crane used. The electrical system consists of Festoon system with Flat Cable attached to the jib arm. The control of jib crane is by pendant control or wireless remote control system. We have different capacities of jib overhead crane range from 150 kg to 15000 kg that rotate about 360 to 180 Degree about it axis and arm length may be 2 m to 8 m with different overhead crane duties. Wall Mounted Jib Crane The wall mounted jib crane is the form of cantilever beam system. The wall mounted jib overhead crane installed on side wall or concrete column with bolts. The jib overhead crane is also called a slewing crane. The electric wire rope hoist or electric chain hoist or manual chain block is under hung on the bridge. The power supply is 3 phase and amperage depending on the duty and capacity of the overhead crane used. The electrical system consists of Festoon system with Flat Cable attached to the jib arm. The control of jib crane is by pendant control or wireless remote control system. We have different capacities of jib crane range from 150 kg to 15000 kg that rotate about 180 degree about it axis and arm length may be 2 m to 8 m with different overhead crane duties. Underhung Crane | Suspension Crane The underhung or suspension overhead crane consists of single girder fitted on two end carriages. The end carriages are fitted with wheels that are underhung on the side girders and move by electrical motors. The electric wire rope hoist or electric chain hoist or manual chain block is under hung on the bridge. The hoist reeving is 2/1 or 4/1 depending on the duty of overhead crane. The power supply is 3 phase and amperage depending on the duty and capacity of the overhead crane used. The electrical system consists of PVC Bus Bar or Powerail Enclosed Conductor Bar and Festoon System with Flat Cable attached to the bridge. The control of single girder crane is by pendant control or wireless remote control system. We have underhung or suspension overhead cranes ranges from 250 kg to 15000 kg with lifting height from 4 m to 18m with different overhead crane duties. Monorail Crane The monorail overhead crane consists of single girder fitted on two side columns or anchored on the ceiling or fitted on the side walls. The monorail may be curved track girder that installed on the steel structure shed or mounted on the ceiling by anchors. The electric wire rope hoist or electric chain hoist or manual chain block is installed on the monorail girder track. The special curved monorail hoist is used on the curved track girder. The hoist reeving is 2/1 or 4/1 depending on the duty of monorail overhead crane. The power supply is 3 phase & amperage depending on the duty and capacity of the overhead crane used. The electrical system consists of PVC Bus Bar or Powerail Enclosed Conductor Bar and Festoon System with Flat Cable attached to the bridge. The control of single girder crane is by pendant control or wireless remote control system. We have monorail overhead cranes ranges from 250 kg to 16000 kg with lifting height from 3 m to 18 m with different overhead crane duties. Free Standing Crane System and Curved Track System The free standing overhead crane consists of vertical columns on which overhead crane installed according to process requirements. The curved track girder, single girder and underhung crane are mostly installed on this system. The special curved monorail hoist is used on the curved track girder. The curved monorail hoist reeving is 2/1 or 4/1 depending on the duty of curved track overhead crane. The power supply is 3 phase & amperage depending on the duty and capacity of the curved track overhead crane used. The electrical system consists of curved PVC Bus Bar or curved Powerail Enclosed Conductor Bar and curved Festoon System with Flat Cable attached to the curved track overhead crane. The control of single girder crane is by pendant control or wireless remote control system. We have free standing overhead cranes ranges from 250 kg to 15000 kg with lifting height from 3 m to 5m. Overhead crane update in Philippines advantages 1. You don’t have to worry about obstructions on your factory floor. You can position overhead bridge cranes as high as your ceiling will allow, which means your crane stays far away from anything on your warehouse or factory floor. This in turn means that you can install an overhead bridge crane just about anywhere in your building. The items and equipment on your floors won’t restrict where this crane can move. This also means that when your crane carries items, you don’t have to worry about those items hitting anything on the floor. They’ll stay safely above any other obstacles, which means a reduction in product damage. 2. The crane won’t create additional floor obstructions. In many cases, you can install these cranes so that they only attach to the walls. This means that you won’t have pillars and support beams creating additional obstructions on the floor. Overhead bridge cranes allow you to maximize your floor space and add a valuable tool to your facility at the same time. However, if you need the crane to span a particularly wide space, you may have to add support beams, especially if the crane has to carry massive loads. Ask your crane’s manufacturer for more information on your specific needs. 3. The crane can operate at high speeds. Some cranes have to move slowly because speed would put too much pressure on them and lead to permanent damage—not to mention collapse in severe cases. As long as you get your overhead bridge crane from a quality manufacturer, you don’t have to worry about this problem as much as you would with other cranes. You can quickly move heavy items all around your facility with confidence. 4. The crane can lift extremely heavy loads. As previously mentioned, overhead bridge cranes can put up with more strain as long as you get them from a quality manufacturer. But once you’ve got your crane, you can depend on it to lift anything you need and transport it elsewhere in your warehouse, factory, or other facility. However, even these powerful cranes have a lift capacity. Make sure you familiarize yourself with your crane’s lift capacity before you start loading it. If you overload it, you could face expensive repairs. And if the crane collapses, it could cause employee injuries as well. You don’t want anything to happen to your employees, and you don’t want to deal with any lawsuits either. 5. You won’t have to worry about instability thanks to the crane’s rigid runways. Overhead bridge cranes don’t shudder, shake, or otherwise fidget inside their runways as they move. They stay more stable and rigid than mobile or construction cranes, which means you don’t have to worry about your load shifting or falling as you move it around your property. Just remember that you’ll need a quality installation to get this benefit. 6. You’ll have more control over the load. Most overhead bridge cranes come with precision controls. Their automated systems allow users to mitigate human error and take loads to an exact location, which means that you won’t have to worry about positioning error. You won’t have to waste time making minute adjustments to get your load exactly where you want it either. It will position precisely without much trouble. 7. You can stack items higher. Cranes can lift higher than forklifts, so you can stack items as high as safety requirements or your ceiling allows. With this advantage, you can maximize space in your facility better than ever before. 8. The crane offers superior safety over forklifts. Forklifts carry risks of crashing, dropping goods, running over pedestrians, imprecise stacking, etc. An overhead bridge crane doesn’t have any of these risks, and they can move much more quickly than a forklift. 9. The crane can save you money. When you depend on forklifts to move items around your facility, you have to not only pay to operate those forklifts, but you have to pay for operators as well. You also have to pay for more repairs on each forklift. With an overhead crane, you only have to pay to power and operate one device with one operator. If you think an overhead crane could benefit your business, call your local provider. You’ll see your productivity and efficiency increase in no time.

Load testing your overhead crane. How to load test your overheadcrane? Generally, load testing of overhead cranes is required by safety regulation and standards to make sure the overhead crane is installed right according the designing specifications. The crane machine owners and operators of overhead cranes should be pay attention to the following: 1> All overhead cranes, gantry cranes, suspension cranes, and jib cranes should be installed on designing specifications. 2> All overhead cranes, gantry cranes, suspension cranes and jib cranes should be proof tested once every four years after original proof testing. 3> All overhead cranes, gantry cranes, suspension cranes and jib cranes should be proof tested and operationally tested after modifications and repairs. 4> All the new and altered overhead cranes should be checked and tested with the following functions: Hoisting and lowering. Trolley travel. Crane running or bridge travel. Limit switches, locking and safety devices. Overhead crane load testing project video Before talking about the overhead crane load testing procedures, let’s see how the 10 ton overhead crane load testing video. If you want to know more about the 10 ton overhead crane project, please check our crane project case study by clicking at Overhead Cranes Serving in Steel Coil Plant. Overhead crane load testing As for the load testing of overhead cranes, it should be bear in mind that the test loads shall not be more than the 125 % of the rated lifting capacity. And also all the load testing reports should be filed which can be accessed by the personnel who is in charge. Pre-test procedures of overhead crane load testing Check the overhead crane operator’s manual for the dos and don’ts, and the operational limitations. Make sure the lifting gear to be used with the overhead crane in normal duties. Make sure all lifting attachments are marketed with rating load visually. Check the previous and periodic test and inspection notes, deficiency reports to make sure all the necessary corrections and repairs have been made. Make sure all the safe working load of the overhead crane is clearly marked on the crane or on the tag on it. Make sure the crane runway and runway structure were designed to support the cranes and loads in all authorized operation configurations. Proper loads for the testing should be selected. A 25% rated load for minimum partial load testing, rated load testing, and a proof load around but not exceeding 125% of the rated load shall be used. Check the overhead crane manufacturer’s instructions and limitation on load testing. The reeving configuration have to be bear in mind. Proper ringing should be used for the load testing which must conforms to good rigging practice for lifting safety. Safety measures should be used to prevent personnel or vehicles to intrude into the overhead crane operating region. All the persons related to the overhead crane load testing including the overhead crane operator, the riggers and the hand signal man have to know the load testing procedures and how the overhead crane load testing conducted. Inspect the overhead crane thoroughly, especially to the structural elements of the overhead cranes where the will be subjected to stress during the overhead crane load testing. A visual inspection to the crane runway, track, powder conductors, collectors and switch gear should be conducted before the load testing. Overhead crane Load testing The overhead crane should be positioned on a stanchion or column of the runway with the trolley or electric hoist placed adjacent to the end of truck at the beginning of the overhead crane load testing to measure the deflection of the crane main girders and the runway girders at center span. Lift the rated load up to a sufficient height to make sure each and every tooth of the lifting gear train is subjected to the rated load. Lower the load to a height of 4 to 8 inches above the ground. Measure the deflection. Traverse the bridge to mid span of the runway girder and measure the deflection. Traverse the trolley with rated load to mid span of the bridge and measure the deflection. Comparing the date you get with the specifications given by the overhead crane manufacturer. With the holding brake in the released positon, start the load down slowly and then return the controller to the off position as the test load is lowering. The load controlling device should prevent the load from accelerating. For overhead cranes with primary and secondary holding brakes and/ or eddy current or hoist eddy current or hoist dynamic load brakes visually observe that correct operation ensures control of the rated load. For overhead cranes equipped with a hoist dynamic brake, eddy current brake, or regenerative brake, check lowering speeds against manufacturer’s specifications to ensure correct brake operation. To ensure the safety of electric hoist unit in case of power failure during material handling operation of the overhead crane and electric hoist, lift the rated load to a convenient distance above the ground. Lower the load at high speed and, with the controller in the lowering position, disconnect the main power source and the load tested should stop lowering. Test the overhead crane with 125% of rated load to achiever the proof load. Repeat items 2-1 through 2-7 and determine that during these operations all crane functions operate effectively. The overhead crane should be operated at appropriate seeds to ensure the safety and the control of the load while handling the proof load. Separate tests should be conducted for overhead cranes with double trolleys or hoists or more. Operate the trolley or electric hoist with the proof load suspended from the hook trough the maximum operational range on the bridge. Observe that the trolley brakes are operating properly if appropriate and allow for load swing and coasting. Operate the bridge with the proof load suspended from the hook as near as possible to the runway rail on each side through the maximum operational rang on the runway system to observe for any binding of bridge trucks and proper brake operation etc. Test the brakes of bridge and trolley separately to make sure they can effectively stop in a distanced equal to 10 % of full load speed in feet per minute when traveling at full speed with full rated load. The overhead crane runway with two or more cranes should be tested with all overhead cranes loaded with full capacity at same time. The crane runway deflection should be measured with the loads suspended as close as possible to the runway with the overhead cranes moving across the span between runway supports and compare the data to appropriate specifications. Post overhead crane load testing A thorough examination is needed to make sure the overhead crane has went through the tests satisfactorily. Park the crane at the proper location for the convenience of use and relax all rigging and reeving to allow for inspection of the wire rope and reeving components. Disconnect power and install a safety lock-out device before mounting the overhead crane. Examine the overhead crane runway for structural damage or distortion, loose or damage fasteners, track alignment and secure attachment to the structural support. Check the Electrical components of the overhead crane runway for deterioration and proper condition. Make sure the electric codes, wires, connections and enclosures in neatness, security. Check and make sure all the sheaves, drums and wire rope from damage or excessive wear. Pay attention to the end fittings and anchor points for potential damage. Check and make sure all the necessary guards and crane safety measures are installed. Make sure all shafts, couplings, an open gears that can be contacted by persons are properly guarded. Make sure all the damages, deficiencies or corrections are marked accordingly. Hoist the load blocks clear of personnel or obstructions. Make sure the wire rope is wound properly on the hoist drums. Open the main disconnect and leave the pendant, if any, in the designated location. Fill in the report form and conduct an exit briefing if appropriate.

In order to qualify your staff, improve safety and crane working efficiency, and lower maintenance cost and production cost in a long run, DQCRANES crane machine provides a wide range of training programs to meet your needs. Our training service covers safe operation, daily inspection and load handling safety and related standards and regulations, etc., which will be conducted by DQCRANES’ experts, specialists, professionals and consultants. Benefits of DQCRANES Training Improve safety Quality your staff and improve confidence Improve productivity Get your skills and knowledge upgraded Reducing maintenance costs Crane accidents prevention Lower crane safety risks Who would attended Safety is the top concern of DQCRANES. Our training is designed for your crane operators who is in charge of daily operation and safe performance of cranes, and service staff, the supervisory personnel. And also the training is also suitable for newcomers, seasonal worker or for refresher training. DQCRANES trains the participant the working knowledge to reduce operator errors to prevent crane accidents and unnecessary downtime. Crane accidents result in injuries to operators and workers on the working site and even the nearby people.70 % of crane incidents could be prevented according to the findings of OSHA’S by proper training. DQCRANES training service can help you to prevent the accidents and lower the unnecessary breakdown time and improve your safety and crane performance efficiency. Training items Crane safety: Safety will be always emphasized in every stage of the training to enable all the trainees have the ability to operate the crane in the safest manor. Risk Assessment- Risks assessment during crane operation will be taught. Lifting Regulations-The Regulations will be learnt to ensure your employees are up to date with the latest "Do's and Don’ts” of the Lifting Industry. Crane Operation- In this part, you will lean the functions of major crane components and assemblies, rigging procedures to attach the load to the hook, precise spotting and lifting of loads , tips on minimize load swinging, and how to operate various cranes and the emergency stop procedures, etc. Crane operator training: Qualifications and responsibilities of a crane operator, frequently used hand signals. Lifting Equipment / Tackle- Trainees will learn how to lift loads by using different under hook equipment. Site Conditions- Working environment will be important to the safe operation of crane. The crane operator will learn how to assess the working conditions. Inspection- Equipment inspection before operation and defects detect will be learnt by your employees. Maintenance- Light maintenance to your crane is necessary, which should be carried out by your operator. We will teach your crane operator when and how to do the maintenance. Records & Certification- Learn to assess the crane conditions through crane inspection and service records to make sure the crane you operate is in good conditions.

In order to ensure smoothness of overhead crane installation, it is important to make the overhead crane installation process, in a safe and orderly condition, which must be planned, organized, step-by-step constructed crane manufacturers. , Each job personnel needs to know fairly well, with ease, formulated the following construction scheme: Ⅰ.single girder overhead crane installation situation The capacity of overhead crane is 3 tons, span 13.5m, lifting height 9m,the travelling speed 20m/min. Ⅱ. Preparation of overhead crane installation 1. Choices of installation site The area of overhead crane installation site should be enough to meet the needs of overturn lifting installation, which should be ready to plug in welding machine and other electric tools. 2. Preparation of equipment and tools The project needs welding machine 2 sets, oxygen acetylene 2 sets, manual chain hoist 2 sets, cushion wooden ladder and lifting equipment and truck crane. 3. Preparation of materials In this project, it needs the crane rail of overhead crane, platen, clamp, steel material used for manufacturing baffle of overhead crane, slide wire and welding rod, according to the practical to prepare enough. 4. Personnel allocate Personnel to participate in this project: Electrician 1, fitter 1, riveter 1, welder 1, lifting worker 1, safety/head 1. Ⅲ. The basic safety requirements in the process of overhead crane installation To participate in this project construction personnel strictly abide by rules of safe operation of each type of work in construction, it is forbidden to illegal operations. Ⅳ. The overhead crane installation process 1. Crane rail installation ⑴ Firstly clean up the site, cement beam foundation under rail of overhead crane for acceptance. ⑵ Level-up, setting out. ⑶ Check and straighten\of overhead crane rail, rail top, rail joint connection, looking for positive reinforcement and measurement inspection, leveling, straightening. ⑷ Overhead crane stoper making installation The installation of the crane rail standards to qualify for TJ231-78 "mechanical equipment installation engineering construction acceptance specifications" the provisions of the standard, the whole overhead crane traveling is not more than 10 mm, the difference between the highest and lowest joint of the left, right, offset, on the face are not greater than 1 mm, joint clearance is not greater than 2 mm, span deviation should not be greater than 5 mm, with cross two parallel track elevation relative difference, in the post should not be greater than 10 mm, other place should not be greater than 15 mm. 2. Installation of busbar Sliding wire contact surfaces should be flat and straight, no rust, conductive good and proper installation, across the structure of the expansion joints, should establish compensation device. Power supply wire of conductive contact surface with red paint, and device safety sign in the appropriate position or electric lamp. Such as installing security good slip line should be straight, conductive, such as power supply, with a soft cable to meet the requirements of line number, traction wire rope. 3. Bridge installation of overhead crane Before installation should be in conjunction with the entrusted installation unit, and representatives of manufacturing units together out of the box, according to the random packing belt, count and check the goods are in conformity with the number of parts listed in the packing list whether, whether random file is complete, after the check, make records, signed by three parties representative on the spot, the bridge of assembly and erection of all the participants in the construction personnel to strictly abide by rules of safe operation of each type of work, it is forbidden to illegal operation. Overhead crane assembly, want to put the bridge according to the working position in pad on the shelf, fixed firmly, put end beam, measuring diagonal is poor, should not be greater than 5 mm, span should not be greater than 3 mm, completely conform to the rules, then assembling electric hoist, trolley running clearance should not be greater than 5 mm, final assembly control room. 4. Electrical installation Before overhead crane installation should be familiar with electrical schematic diagram, wiring diagram in detail, electrical assembly drawing and related technical data, understand the operating principles and the function of the various components. In order to accurately and quickly processing installation problems appeared in the process. Check all electrical components and motor of geopolitical resistance shall be not less than 0.8 ohms. Should not be less than 0.4 ohms in the damp environment, check each line is correct, after sure no ber, before the current test run. In the test run, check whether the direction is consistent, travel switch power is in accordance with the requirements of direction, up and down limit device is safe and reliable. The safe and reliable safety device must be qualified before lifting construction, in the process of hoisting, strictly abide by rules of safe operation, it is forbidden to illegal operations. Ⅴ. Overhead crane charged by shell, wire and tube should be reliable grounding, crane rails and any point on overhead crane, the grounding resistance less than 4 ohm. Repeat grounding resistance is not more than 10 ohms. The main circuit and control circuit of insulation resistance is not less than 0.8 ohms. Ⅵ. Overhead crane test run after qualified, will be no load test, static load test and dynamic load test. Qualified self-checking, fill in the completion of the report, notify party a, organize relevant departments to check and accept, qualified after consign is used.

How to buy a crane? Before crane buying, there are some basic crane terms and crane specifications are needed to buy a custom overhead crane, gantry crane, jib crane, and electric hoist. Check the crane specifications and crane manufacturers before buy a crane. Overhead crane An overhead crane, commonly called a bridge crane, is a type of crane found in industrial environments. An overhead crane consists of parallel runways with a traveling bridge spanning the gap. A hoist, the lifting component of a crane, travels along the bridge. Overhead crane specifications drawing: S= Crane Span, H= Lifting height Basic specifications of overhead crane needed: Lifting capacity: How many tons you need Lifting height: Hook center to ground Span: Crane rail center to rail center Voltage: Volt/ Hertz/ Phase More detailed information is needed to get your ideal overhead crane. Contact us to get your custom overhead crane. Gantry Crane Single girder gantry crane & Double girder gantry crane Gantry cranes are a type of crane built atop a gantry, which is a structure used to straddle an object or workspace. Gantry cranes for marine application are imposing, multi-story structures prominent at most container terminals, used to load intermodal containers on and off container ships. Gantry Crane specifications sketch drawing Basic specifications of gantry crane needed: Lifting capacity: How many tons you need Lifting height: Hook center to ground Crane Span: Crane rail center to rail center Voltage: (Volt/ Hertz/ Phase) More details are needed to get ideal gantry crane. Contact us to get your custom gantry crane. Jib Crane Pillar Type Jib Crane & Wall Mounted Jib Crane A jib crane is a type of crane where a horizontal member (jib or boom), supporting a moveable hoist, is fixed to a wall or to a floor-mounted pillar. Jib cranes are used in industrial premises and on military vehicles. Jib crane specifications sketch drawing for a reference Basic specifications of jib crane needed: Lifting capacity: How many tons you need Lifting height: Hook center to ground Span: Crane rail center to rail center Voltage: Volt/ Hertz/ Phase More details are needed to get ideal jib crane. Contact us to get your custom jib crane.

Double girder overhead crane is your first choice for heavy duty material handling which needs a very large range of overhead crane spans, heights of lift and speed range. Different with double girder gantry cane, the double girder overhead crane manufacturers can be used in various building structures, new or existing building, due to the advantages of various main bridge crane girder designs. The cranes can be provided with multiple hoisting system arrangements depending upon the load and lifting requirements. Double Girder Overhead Cranes Advantages of double girder overhead crane High stability and design rigidity Highly cost-effective High efficacy and stable performance Modular design Features of double girder overhead crane Dongqi double-girder overhead crane provides you exceptional load capacity and minimum deadweight. Our double girder overhead crane can ensure the precise and stable material handling due the specially designed travel characteristics. Besides, the crane hook is placed between the two girders, improving the lifting heights. Dongqi double girder overhead cranes are available in almost unlimited capacities Dongqi double girder overhead cranes could be installed with two hoists on a single trolley or two separate hoists Generally move at higher speeds than underhung cranes with speeds approaching 200 fpm. Double girder overhead crane has pendants and radio controls to ensure the safety of crane operation. Hot double girder overhead crane designs of Dongqi Crane Double girder overhead crane is designed to handle heavy loads and objects over 20 tons, thus, a double girder overhead crane also refers to a heavy duty overhead crane. Hook double girder overhead crane is one of the mostly used heavy material handling equipment with the lifting capacity from 5 ton to 550 ton, working class up from A4 to A7. Up to 550 ton double girder overhead cranes of various crane designs are for sale good price. Types of double girder overhead cranes are available, such as, hook overhead crane, gab bucket overhead crane, electromagnetic overhead crane, soaking pit overhead crane, etc. Contact us to get your double girder overhead crane now.