Special Overhead Cranes

BY Dongqi Crane IN Overhead Crane By Types

Different working conditions, we provide different crane solutions for customers. For some special working conditons, such as explosion proof situation, wast to enegy situation and metallurgical environment, Dongqi have made lots of successful crane solutions.rJWTypes Overhead Cranes, 1-500 tons Overhead Bridge Crane Manufacturer & Supplier | Dongqi Group

Explosion Proof Single Girder Overhead Crane

Explosion proof single girder overhead crane is widely used in factories and warehouses where the height from the rail surface to the lower edge of the truss is equal to or shorter than 500mm. This kind of crane is with more strong shell and sealing performance. Electrical device and motor is with explosion proof equipment. The trolley of explosion proof single girder overhead crane is equipped with a specific electric hoist that features flexible structure; it’s more reliable and safe operation. If you have special demands on the span, our company is able to carry out design and production of custom non-standard explosion proof single girder overhead crane.rJWTypes Overhead Cranes, 1-500 tons Overhead Bridge Crane Manufacturer & Supplier | Dongqi Group

rJWTypes Overhead Cranes, 1-500 tons Overhead Bridge Crane Manufacturer & Supplier | Dongqi Group

Explosion Proof Single Girder Overhead Crane Working Condition:

The working class of explosion proof single girder overhead crane is A3 and A4, its control mode is ground control and wireless remote control. The working temperature which is proper for explosion proof single girder overhead crane is -10°C to +60°C.rJWTypes Overhead Cranes, 1-500 tons Overhead Bridge Crane Manufacturer & Supplier | Dongqi Group

Its power source is 3ph, 380V, 50HZ or other under customer requirement.rJWTypes Overhead Cranes, 1-500 tons Overhead Bridge Crane Manufacturer & Supplier | Dongqi Group

Explosion Proof Single Girder Overhead Crane Safety Features:

The safeties devices are used in explosion proof single girder overhead crane are as following:rJWTypes Overhead Cranes, 1-500 tons Overhead Bridge Crane Manufacturer & Supplier | Dongqi Group

1. Weight overload protection device
2. Top quality long time bearing polyurethane materials buffer
3. Crane traveling limit switch
4. Voltage lower protection function
5. Emergency stop system
6. Current overloads protection system and so on

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Waste to engery plant overhead crane

Rubbish grab crane is the key device used in the garbage feed system of different kinds of Garbage-cremation power plant in modern city. It is located at the top of garbage storing pit, and is mainly used for operation of feeding, conveying, mixing, fetching and weighting of the garbage. The garbage grab crane manufactured by our company can implement lifting and conveying strictly to ensure normal work of garbage cremation power plant. The crane can be controlled by hand, semi automatically or automatically.rJWTypes Overhead Cranes, 1-500 tons Overhead Bridge Crane Manufacturer & Supplier | Dongqi Group

Signed the strategy partnership with DEMAG which is the famous crane brand in the world.For the garbage grab overhead crane,our orientation is the new type European crane.rJWTypes Overhead Cranes, 1-500 tons Overhead Bridge Crane Manufacturer & Supplier | Dongqi Group

rJWTypes Overhead Cranes, 1-500 tons Overhead Bridge Crane Manufacturer & Supplier | Dongqi Group

Waste to engery plant overhead crane Advantages

1. Main girderrJWTypes Overhead Cranes, 1-500 tons Overhead Bridge Crane Manufacturer & Supplier | Dongqi Group
   With DEMAG’s technology; materials adopt Q345B;Light self weight.Welded by the auto welding machine, and checked by the non destructive inspection.
2. End carriagerJWTypes Overhead Cranes, 1-500 tons Overhead Bridge Crane Manufacturer & Supplier | Dongqi Group
   Materials adopts Q345B; One time processing;Equiped wheels,buffer and keep rail equipment. Wheels adopt 65Mn quenched processing can achieve 6300 Hours working life.
3. The driver system of trolley and cranerJWTypes Overhead Cranes, 1-500 tons Overhead Bridge Crane Manufacturer & Supplier | Dongqi Group
   Adopt “three in one” driving unit which the brand is SEW/Nord. Can work in the harsh environment.The braker with manual switch, the crane can be moved when power off by manual.
4. Lifting mechanismrJWTypes Overhead Cranes, 1-500 tons Overhead Bridge Crane Manufacturer & Supplier | Dongqi Group
   The lifting mechanism is the most importment part of the crane. The control mode can be manual, semi auto, auto. Auto mode can compete fetch garbage, pile garbage and mix garbage the whole procedure.
5. Power supplyrJWTypes Overhead Cranes, 1-500 tons Overhead Bridge Crane Manufacturer & Supplier | Dongqi Group
   The trolley adopt the towing chain which is made of indudtrial plastic,anti corrosion,light self weight reduce the driven power, can travel long distance even with load. And with beautiful outlook.

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Foundry crane / Metallurgy Crane For Steelmaking

Foundry crane is one of the main equipments in the continuous casting technology of steelmaking.rJWTypes Overhead Cranes, 1-500 tons Overhead Bridge Crane Manufacturer & Supplier | Dongqi Group

It is mainly used for pouring melted iron from additive bay of converter to converter; lifting molten steel from refining bay to refining furnace or lifting melted steel from molten steel bay to ladle turret of continuous casting machine.rJWTypes Overhead Cranes, 1-500 tons Overhead Bridge Crane Manufacturer & Supplier | Dongqi Group

The overall structure of foundry crane has the following forms: two girder and four girder etc.rJWTypes Overhead Cranes, 1-500 tons Overhead Bridge Crane Manufacturer & Supplier | Dongqi Group

rJWTypes Overhead Cranes, 1-500 tons Overhead Bridge Crane Manufacturer & Supplier | Dongqi Group

Working condition of double girder overhead cast crane

• Working temperature: -10~+60°C
• Work class: A7
• Power Source: 3ph,380V,50HZ or required

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Safety feature

Weight overload protection device with data displayer,rJWTypes Overhead Cranes, 1-500 tons Overhead Bridge Crane Manufacturer & Supplier | Dongqi Group
High quality buffer,rJWTypes Overhead Cranes, 1-500 tons Overhead Bridge Crane Manufacturer & Supplier | Dongqi Group
anti-heat layer,rJWTypes Overhead Cranes, 1-500 tons Overhead Bridge Crane Manufacturer & Supplier | Dongqi Group
Heat insulation cabrJWTypes Overhead Cranes, 1-500 tons Overhead Bridge Crane Manufacturer & Supplier | Dongqi Group
Crane traveling limit switch, Voltage lower protection function,rJWTypes Overhead Cranes, 1-500 tons Overhead Bridge Crane Manufacturer & Supplier | Dongqi Group
Emergency stop system,rJWTypes Overhead Cranes, 1-500 tons Overhead Bridge Crane Manufacturer & Supplier | Dongqi Group
Current overload protection system and etc.rJWTypes Overhead Cranes, 1-500 tons Overhead Bridge Crane Manufacturer & Supplier | Dongqi Group

Design and construction rules

All the standards which is required for the crane is the Chinese standard of double girder overhead cast cranerJWTypes Overhead Cranes, 1-500 tons Overhead Bridge Crane Manufacturer & Supplier | Dongqi Group
Primer and finishing paintrJWTypes Overhead Cranes, 1-500 tons Overhead Bridge Crane Manufacturer & Supplier | Dongqi Group
Color: according to your demand.rJWTypes Overhead Cranes, 1-500 tons Overhead Bridge Crane Manufacturer & Supplier | Dongqi Group
Average thickness: about 100 microns.rJWTypes Overhead Cranes, 1-500 tons Overhead Bridge Crane Manufacturer & Supplier | Dongqi Group

Aftersales service

One year warranty for whole machines.rJWTypes Overhead Cranes, 1-500 tons Overhead Bridge Crane Manufacturer & Supplier | Dongqi Group
Providing free quick-wear part.rJWTypes Overhead Cranes, 1-500 tons Overhead Bridge Crane Manufacturer & Supplier | Dongqi Group
Low charge for continue maintenance when warranty is expired.rJWTypes Overhead Cranes, 1-500 tons Overhead Bridge Crane Manufacturer & Supplier | Dongqi Group
Exclusive engineer support at any time.rJWTypes Overhead Cranes, 1-500 tons Overhead Bridge Crane Manufacturer & Supplier | Dongqi Group
We can provide free training to end-users.rJWTypes Overhead Cranes, 1-500 tons Overhead Bridge Crane Manufacturer & Supplier | Dongqi Group

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