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QZ Grab Bucket Overhead Crane
The grab bucket overhead crane has the lifting capacity around 5 to 50 tons together with the weight of the grab bucket, which is widely used in power station, storage, workshop, and port to load and unload scattered objects.
Lifting Capacity:5~50t
Span:10.5~36.5m
Working Duty:A6
Ambient Temperature:-20~40℃
Description
Double girder overhead crane with grab consists of girders, crane traveling mechanism, trolley, electric system and grab. Double girder overhead crane with grab is widely used in power stations, warehouses, workshops and ports to grab or lift bulk materials. The lifting capacity includes the weight of grab and the grab opening direction is parallel or vertical to the main girders.
Bridge (main beam and end beam): supports the crane structure and moves horizontally along the track.
Hoisting mechanism: controls the vertical lifting of the grab bucket, usually equipped with double drums (supporting the opening and closing and lifting of the grab bucket respectively).
Grab bucket: double-flap grab bucket (granular materials) or multi-flap grab bucket (scrap steel, irregular materials) can be selected according to the material type.
Operating mechanism: includes a large car (longitudinal movement) and a small car (lateral movement) to achieve precise positioning in three-dimensional space.
Electrical system: frequency conversion control, anti-sway technology, overload protection, etc. to ensure smooth and safe operation.
Features
The cross-section of the main beam is analyzed using the ANSYS finite element calculation method to ensure sufficient strength, rigidity, and overall stability.
The operator cabin is designed to meet various functional needs, being durable, safe, and reliable, while also providing good visibility, comfort, and an aesthetically pleasing environment, ensuring a pleasant experience for the operator during use.
The grab bucket crane is equipped with a complete set of safety devices, including overload limiters, safety guards, height limiters, and travel limiters.
The hoisting mechanism is easy to operate, stable in performance, and highly productive.
The company is equipped with comprehensive testing facilities, including magnetic particle inspection, ultrasonic testing, and impact testing machines, to ensure product quality.
Technical Data
| Lifting capacity(t) | 5 | 10 | 16 | 20 | |
| Span(m) | 10.5-31.5 | 16.5-31.5 | |||
| Lifting height(m) | 20 | 18 | 28 | 26 | |
| Working class | A6 | ||||
| Speed (m/min) |
Hoist lifting | 39.2 | 40.7 | 41.8 | 48.6 |
| Trolley traveling | 44.6 | 45.9 | 38.0 | 37.8 | |
| Crane traveling | 93.6/113.6 | 112.5/101 | 88/87.3 | 87.3 | |
| Power supply | 380V, 50HZ, 3 phase or others | ||||
Components
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Electric Trolley
Hoist trolley usually installed on the heavy duty bridge crane or gantry crane as a lifting mechanism. It has a simple structure and light weight. It’s mainly used in general hoisting, loading and unloading operations in machinery manufacturing workshops, warehouses, assembly and hydro-power station maintenance.
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Main beam
The main beam is the crane's main load-bearing component, and the running track for the electric hoist. It is a triangular beam is weld by a support frame(welded by angle steel and other section steel) and an I-beam. The two sides of the span are designed with saddles connected to the outriggers, and there are rectangular steel plate connecting flanges. There are buffers at both ends of the main beam to ensure the safe operation of the trolley on the main beam.
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Crane Hook
Crane hook is the most common type of spreader in lifting machinery. The crane hook is often suspended on the wire rope of the hoisting mechanism with the help of pulleys and other components. The crane hook should conform to the manufacturer's suggestions and must not be overloaded.
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Crane Cab
The crane cab is the workplace of the crane operator and it undertakes a crucial role. The design of the cab fully considers the comfort and safety of the operator. It has a good view so that the operator can clearly observe the surrounding environment and operating conditions.
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Control model
Can use control handle with pendant line, wireless remote control, or cabin control.
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