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Grab Overhead Crane

Grab bridge crane is also called bridge grab crane. It is a kind of crane equipment with grab equipment instead of bridge crane hook. The bridge crane is widely used in power plant, cargo yard, workshop, wharf, etc. for bulk material loading and unloading transportation. If you want to learn more information, please get in touch with us.

AQ-QZ double girder grab crane

AQ-QZ double girder overhead crane specifications 

  • Load capacity: 5-20t
  • Span: 10.5-31.5m
  • Lifting height: 6-26m
  • Lifting speed: 30.7-39.3m/min
  • Trolley running speed: 31.1-44.6m/min
  • Crane running speed: 76.9-93.6m/min
  • Work duty: A5-A7

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Grab bridge crane operation design

AQ-QZ type grab bridge cranes are widely used in power plants, freight yards, workshops, wharves, etc., for the loading and unloading of bulk materials.

  1. The crane is a heavy-duty work system, and the work level is A6.
  2. The rated lifting capacity is generally 5~10t, and the opening direction of the grab has two kinds of parallel and vertical main beams.
  3. The fetching device is a four-rope grab with double drums, which is simple in structure and reliable in work.
  4. The grab can be opened and closed at any height. The grab is only suitable for bulk materials in the state of natural accumulation.

When grabbing underwater materials or special materials, it must be specifically mentioned when ordering. It can be used indoors or outdoors, and a rain cover device is added for outdoor use.

Four rope mechanical grab

Grab bridge crane structure design

Structure: box type

The box-shaped main beam has many advantages such as high overall rigidity, good manufacturing, assembly, transportation and maintenance conditions. The  has a range wide applications at home and abroad. It consists of wheels, motors, reducers, brakes, etc.

  • Generally, it is composed of bridge frame, cart operating mechanism, crane trolley, electric, various grab types and so on.
  • It is to provide driving force to the driving wheels, so that the whole crane can move in a horizontal direction along a fixed track
  • It has the installation on the bridge frame and consists of a lifting mechanism, a trolley running mechanism, and a lifting trolley frame.

Lifting mechanism: realize the lifting of goods;

Trolley running mechanism: drive the lifting trolley to run horizontally and horizontally along the track on the bridge frame;

Trolley frame: supports the entire trolley and bears the load.

grab operation

grab crane operation

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Grab bucket:

The fetching device is a four-rope grab with double drums, which has a simple structure and reliable work.

  1. The grab has the opened and closed at any height. When the material lumpiness is below 100mm, the effect is good and the productivity is high. When the size of the material to be grabbed is greater than 200mm, a toothed grab is required.
  2. Grabs are only suitable for bulk hand-made materials in a natural accumulation state. When grabbing underwater materials or special materials, they must be specially mentioned when ordering. In the open air, the users need the rain-proof facilities.

Technical parameters:

Grab overhead crane is mainly composed of bridge frame, cart operating mechanism, trolley, grab bucket and electrical equipment. Its working level is A6. The lifting weight includes the grab weight. The ambient working temperature is -20℃-40℃ , Its lifting weight includes the grab weight. This product has two types: cab operation and wireless remote control.

Technical Parameter of AQ-LDZ  Electric Single Girder grab Crane
Capacity t 2 3 5 10
Span S(m) 4.5-28.5 4.5-28.5 4.5-28.5 4.5-28.5
Lifting height m 6~16 6~16 6~16 6~13
Lifting speed m/min 16 16 16 14
Trolley speed m/min 20(30) 20(30) 20(30) 20(30)
Crane speed m/min 20(30) 20(30) 20(30) 20(30)
Grab volume 0.5 0.5 0.75 1
Work duty A3~A4 A3~A4 A3~A4 A3~A4
Track type P18  P24 P24 P24 P24 P30
Technical Parameter of AQ-QZ Double Girder Grab Bucket Overhead Crane
Capacity t 5 10 16 20
Span S(m) 10.5~31.5 10.5~31.5 10.5~31.5 10.5~31.5
Lifting height m 6~18 6~18 6~26 6~26
Lifting speed m/min 31.3 29.7 32.7 30.7
Trolley speed m/min 44.6 31.7 31.1 31.1
Crane speed m/min 93.6 86.5 75.1 76.9
Work duty A5~A7 A5~A7 A5~A7 A5~A7
Track type P43   QU70 P43   QU70 QU70 QU70

Grab crane price

How much is the price of a grab overhead crane? Contact the manufacturer of the grab bridge crane for a quote!

Professional grab bridge crane is directly supplied by the factory. Please contact us for purchasing grab according to bridge crane picture, bridge crane model, grab bridge crane specifications and parameters bridge crane price!

The grab bridge crane is a semi-customized machine, and the track size and other parameters need to be determined according to your site conditions and requirements.

top running single girder grab crane supplier
single girder single girder grab crane

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Ordering instructions:

1. The following main parameters of the crane should be determined before ordering: lifting weight, span, lifting height, working system, track model, longitudinal chamber type and door opening direction, grab type, etc.
2. When used in the open air, rainproof facilities are required, which should be specified in the contract. At this time, the total weight of the crane and wheel pressure will increase by about 5%.
3. There are two types of grab opening and closing directions. Type i means the opening and closing direction is consistent with the direction of the cart; type ii means the opening and closing direction is consistent with the direction of the cart. When choosing type, it must be specified in the contract.

What can we offer?

We can help the customers get the bridge crane structure drawing:
Learning the crane operating environment:
The crane is suitable for warehouses and workshops of metallurgical, cement, chemical and other enterprises. It is engaged in limestone, slag, coke slag, coke, coal, sand, ore and other bulk materials in fixed spans indoors or in the open air. For special use, please contact us for non-standard design and customization.

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