Double Girder Overhead Crane
Double Girder Overhead Crane
BY Dongqi Crane IN Overhead Crane By Girders
Double girder Overhead Crane is widely used for transferring material, goods, equipment installation and maintenance in factory, power station, storeroom, warehouse etc. It can be divided into following types according to different use standards. As a professional cranes supplier, Dongqi Group provides kinds of double girder Bridge Cranes with high quality and low prices to meet customers’ needs.
LH Dongqi Double Girder Crane
- Lifting Capacity: 5~32t
- Span Length: 10.5~31.5m
- Lifting Height: 6~18m
- Working Class: A4
- Ambient Temperature: -20~40℃
What is double girder overhead crane with hook?
This kind of double girder overhead crane adapts to mine, factory, warehouse indoor and outdoor for general loading, unloading and transferring work. Two working classes are included: medium class and heavy class. Crane of medium class is suitable to machinery processing, metal structure, assembly; crane of heavy class is suitable to smelting workshop and continuous lifting work for heavy duty. When lifting dangerous goods and scorching hot liquor, the lifting crane should be equipped with double-brake system.
QD Double Girder Overhead Crane for Sale
- Lifting Capacity: 5~320t
- Span Length: 10.5~31.5m
- Lifting Height: 6~18m
- Working Class: A5, A6
- Ambient Temperature: -20~40℃
When to use grab overhead cranes?
Grab overhead crane is often used in metallurgy, chemistry, cement and other enterprise’s warehouse and factory, or work on lifting bulk material such as ore, limestone, coal, sand under fixed span indoor and outdoor. It is called workstation crane. The grab system is flat grab with double drum (four ropes). The grab can close and open at any height. When grabbing solid block more than 60mm, the grab with gear is needed. The grab is suitable for bulk material under the condition of natural accumulation. If grabbing material in the water, special description is necessary. Rated lifting weight of grab overhead include the weight of grab itself and the weight of lifting material.
Dongqi QZ Grab Overhead Crane for Sale
- Lifting Capacity: 5~20t
- Span Length: 10.5~31.5m
- Lifting Height: 6~18m
- Working Class: A5, A6
- Ambient Temperature: -20~40℃
What is electromagnetic travelling crane?
Electromagnetic crane with detachable magnetic disc is suitable to steel market and cutting workshop. It is also used frequently for loading, unloading and lifting black metal products and material with magnetic permeability. The crane system includes box type bridge frame, travelling crane system, trolley, electrical equipment and magnetic disc. Complete mechanism is operated inside crane cabin. When using outside, the machine is equipped with anti-rain device. The magnetic disc is charged directly through cable reel on the trolley. The rated lifting weight of electromagnetic cranes refer to the weight of magnetic disc and the weight of lifting material.
QC Electromagnectic Crane
- Lifting Capacity: 5~50t
- Span Length: 10.5~31.5m
- Lifting Height: 6~80m
- Lifting Speed: 7.8-15.5m/min
- Crane Speed: 42-112m/min
- Working Class: A6
QL Travelling Electromagnetic Crane
- Lifting Capacity: 1~350t
- Span Length: 6~45m
- Lifting Height: 3~60m
- Lifting Speed: 7.8-15.5m/min
- Crane Speed: 20-30m/min
- Working Class: A3-A7
Metallurgic crane for sale
It applies to lifting work in smelting workshop and has high work class for heavy duty. Due to lifting liquid metal, it is required that when one site of electric motor doesn’t work, another electric motor can continue for a work-process. Its rated lifting weight is the total amount of lifting steel ladle and molten steel. The hook of first vice lifting mechanism can be used together with main hook to pour out the molten steel and steel slag or can be used alone to lift material. Main lifting mechanism with four wire ropes is much better, because when one wire rope or two wire ropes on the diagonal line brake, it can also unload the heavy material on the floor.
QDY Metallurgic Overhead Crane from Dongqi
- Lifting Capacity: 5~30t
- Span Length: 10.5~31.5m
- Lifting Height: 6~35m
- Crane Dive:IP54 or IP44,level F insulation
- Working Class: A5 A6
YZ Foundry Metallurgic Heavy Duty Crane
- Lifting Capacity: 5~320t
- Span Length: 10.5~31.5m
- Lifting Height: 6~18m
- Working Class: A6, A7
- Ambient Temperature: -10~50℃
Dual-purpose hoisting crane for sale
Dual-purpose overhead cranes include grab-magnetic type and grab-hook type. In order to improve the productivity, the trolley is equipped with hook and grab or magnetic disc and grab. But only one kind of lifting device can be used in every work cycle.
NLH European Travelling Crane
- Lifting Capacity: 3.2~80t
- Span Length: 10.5~31.5m
- Lifting Height: 6~18m
- Lifting Speed: 0.5/3.4-0.8/5m/min
- Crane Speed: 3-30m/min
- Working Class: A5
EOT Portable Crane from Dongqi Supplier
- Lifting Capacity: 5~320t
- Span Length: 10.5~31.5m
- Lifting Height: 6~18m
- Lifting Speed: 0.2/2-1.07/10.7m/min
- Crane Speed: 40-68m/min
- Working Class: A5
Three-purpose overhead cranes for sale
This kind of crane includes detachable magnetic disc, grab with motor and hook. Three lifting devices can exchange for transferring finished products, bulk material or magnetic metal material. But only one type can be used each time.
QE Double Trolley Crane from Dongqi
- Lifting Capacity: 3~500t
- Span Length: 6~40m
- Lifting Height: 3~60m
- Lifting Speed: 0.1-13m/min
- Working Class: A5 A6
What is explosion-proof crane with hook?
Overhead explosion proof crane applies to factory and warehouse with flammable and explosive mixture, usually works on general transferring duty. Explosion proof classes have two major categories: I class refers to mine crane; II class refers to factory crane.
Its electric motor is explosion-proof, some explosion proof measures are also taken for mechanical parts so that crane in the work avoids producing spark, bringing fire or explosion accident. All electric motors are marked with “EX”. Explosion proof class of the crane should be chosen based on the classification of hazardous substances. There are four classes of explosion-proof as following: I、IIA、IIB、IIC. The voltage of I class is from 660V-1140V, the voltage of II class is 380V. Factories often use IIB class and IIC class( Exd IIBT4/ExdIICT4).
QB Explosion Crane from Dongqi
- Lifting Capacity: 5~75t
- Span Length: 10.5~31.5m
- Lifting Height: 6~18m
- Lifting Speed: 3-5m/min
- Crane Speed: 20m/min
- Working Class: A4
- Explosion-proof Grade：ExdⅡBT4、ExdⅡCT4
How to make two- girder cranes insulated?
Overhead cranes with insolation are widely used in aluminum and magnesium electrolytic workshop. They apply to aluminum electrolytic factory with low voltage and high currency. To avoid that the charged objects are transferred onto crane system through lifting device and endangering the life safety of crane operator, so several insolation devices are set on cranes’ three positions. Three positions include the place between overhead crane hook and pulley, the place between lifting mechanism and trolley frame, the place between trolley frame and crane system. Each insolation value is 1MΩ
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