Gantry Crane with Grab for coal, ore, bulk material handling

 Gantry crane with grab is a gantry crane usually employed to handle bulk materials such as coal, stone, sand, metal scrap, garbage, etc. with a grab. It is mainly composed of gantry structure, trolley, lifting mechanism, electronic control and grab. The cabin also travels with the trolley. There are optional grab and belt conveyor for customers.

 

Gantry crane with grab

 

Which Parts can be Customized?

1. Span.

2. Cantilever length.

3. Lifting height.

4. Lifting speed: stepped or stepless speed, variable, frequency control.

5. Crane and trolley traveling speed: stepped or stepless speed, variable, frequency control

6. Gantry structure: box girder type or truss type: less weight, small will area, and the driver room can be fixed at one side of the legs.

7. Control: cabin control or ground remote control.

8. Grab type: teeth mouth or flat mouth, and peace. The grab open direction can be parallel or perpendicular to the main girder.

9. Power supply can be trough overhead contact line or ground cable reel or other means.

 

 

 

 

 

 

https://www.weihuagantrycrane.com/product/Gantry-Crane-with-Grab.html

Email: weihua@craneweihua.com

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Fixed Dock Crane

 Fixed dock cranes (or mast crane, or derrick) are commonly seen at dockside for lifting materials and goods between vessels and shore. This dock crane is composed of platform, hoisting mechanism and luffing mechanism, which is for handling 22,000m3 LPG tank.

 

 

Lifting Capacity: 2*330t

Luffing: 21.5-54m

Front Boom Length: 70m

A-Frame Mast Diameter: 1.6m

 

 

Features:

1.      Adopt 4 driving system for lifting mechanism, and 2 driving system for luffing mechanism.

2.      The entire mast crane chassis adopt basin support on concrete platform, which can effectively ease the crane horizontal and vertical deformation.

3.      Multi-layer winding line reel drum. Hoisting winding drum wrapped with 4 layers of wire rope, and luffing drum is wrapped with 5 layers of wire rope.

4.      Complete frequency, lifting half load speed is 2 times of the full load speed.

5.      Using inverter, encoder and a series of electronic control system to ensure the 4 lifting motors keep synchronous running.

 

 Fixed dock cranes 

 

https://www.weihuagantrycrane.com/product/Fixed-Dock-Crane.html

Email: weihua@craneweihua.com

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Shipyard Portal Crane

Portal crane for shipyard is applied for ship repair and ship building in shipyard, which can be employed to handle structural sections during ship assembly and for electrical equipment installations.

 

Features of Weihua Shipyard Portal Crane

1. Adopt pulley and drum compensation for variable amplitude compensation, precise horizontal luffing;

2. PCL control, AC frequency conversion speed, excellent low speed micromotion, precise hoist positioning;

3. 360° rotation;

4. Straight boom and cylinder portal structure, light weight, nice appearance, easy maintenance;

5. Adequate protection devices, lighting and communication system;

6. Good vision from the cabin, nice appearance.

 

Portal crane for shipyard

 

 

https://www.weihuagantrycrane.com/product/Shipyard-Portal-Crane.html

Email: weihua@craneweihua.com

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RMG Crane for Steel Track Handling

The RMG Crane for Steel Track Handling can be used for handling of steel pipe, steel sheet, steel plate or steel track with electromagnetic sling or clamp sling. During the hoisting operation of large projects for big projects, multiple cranes are usually applied together to hoist the same object through wireless linkage. It is not only safe and reliable, but also effectively guarantee the orderly progress of the task. The linkage cranes also greatly improves the lifting capacity and working efficiency, reduce the use and maintenance costs.

 

RMG Crane for Steel Track Handling

 

During hoisting operation, usually 2 or more cranes are used together to lift a same big object (oversize and overweight). This requires several cranes to have coordinated action and maintain synchronization during lifting, running and braking. In the project below, 4 RMG cranes are employed to handle steel tracks at railway freight yard.

 

 

Lifting Weight: 10t+10t

Steel Track Length: 100m

Site: Xi’an Railway Bureau, China

Way of Working: 4 cranes linkage operation

Sling: Hang beam with clamps

 

The 4 RMG cranes for Xi'an Railway Bureau adopts Siemens 1500PLC control system and Schneider ATV71 inverter. It realizes centralized control and sub-control by multi-machine wireless linkage control, making 4 cranes as a group, to lift a single 100-meter-long high-speed rail track.

 

 

Features:

1. The cranes can be controlled by the main console and the remote control, as well as operated separately in the cab.

2. When any crane fails, other cranes will stop working automatically

3. The control system has sound and light alarm to remind, diagnose, monitor, troubleshoot and shorten the maintenance time.

4. Electric control system also has a dedicated database for real-time recording of equipment operating conditions, which also can be used to calculate lifting mechanism cumulative overload times in safety work cycle.

5. Crane drive system uses absolute encoder to limit the travel error within 150mm for cranes' synchronous operation within 300m distance.

6. Trolley simultaneous travel uses Gray bus memory positioning, which limits the error ± 3mm in 20m traveling distance.

 

 

https://www.weihuagantrycrane.com/product/RMG-Crane-for-Steel-Track-Handling.html

Email: weihua@craneweihua.com

WhatsApp: +86 15093392066

Port Mobile Tire Crane

 Weihua port tire crane is mainly used for large ports, stations, freight yard and other places to carry out the bulk cargo handling and lifting operations, but also employed for the maintenance, demolition and installation of large-scale port equipment.

 

port tire crane

 

 

 

https://www.weihuagantrycrane.com/product/Port-Tire-Crane.html

Email: weihua@craneweihua.com

WhatsApp: +86 15093392066

Tube Belt Conveyor

 As an environment-friendly continuous conveying equipment, the tube belt conveyor is designed for conveying coal, colliery coal, coke, blending materials, sintered ore, mineral powder, petroleum coke, limestone, sand-gravel aggregate, acetylene sludge, humidifying dust, chemical fertilizer, salt, waste paper, phosphorus gypsum, sulfur-iron slag and other bulk materials.

 

tube belt conveyor

 

The working of tube belt conveyor is basically same with commonly seen belt conveyors. And most of the parts are interchangeable with other belt conveyors, however, the conveyor belt of tube belt conveyor is rolled up into round tube shape.

 

Features:

1. Seal up bulk materials.

2. Transport routines can be very long and bent.

3. It can enhance the transport inclination angle.

4. No off-tracking happens.

5. Conveying materials in two directions.

 

 

Structure:

1. Common discharge port

2. Charging port

3. Transition section of materials receiving

4. Special tubules tape

5. Transition section of materials unloading

6. Transmission Roller

 

 

Working:

After receiving the materials from the transition section, the conveyor belt will be rolled up into round tube shape gradually and the materials are sealed and conveyed. At the discharging section, the tube is unfolded gradually and the materials are discharged.

 

 

Related News: Weihua Produce World's Longest Pipe Belt Conveyor

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Portal Crane, Weihua Crane, Leading Crane Manufacturer

A portal crane is a crane with rotary boom and runs along the ground track. Portal crane allow ground vehicle or rail vehicle to run through its portal/gantry, which make enough working space for on-ground vehicles transport.

 

portal crane

 

Weihua Portal Crane Can be:

1. Port Portal Crane: This crane is equipped with a replaceable hook, grab and other spreader, as well as bucket, funnel or belt conveyor for material handling.

2. Ship Construction Portal Crane: For the lifting work at shipyard with a large lifting capacity and lifting height. Usually 2 or more lifting hooks are fitted on this crane. The lifting weight of the main hook vary with the range of work. The working speed is generally slower than that of port portal crane.

3. Container Portal Crane: Used for container handling and stacking at container freight yard.

 

 

Features of Weihua Portal Crane:

1. Spreader: grab or hook, good applicability;

2. 4-bar linkage boom, precise luffing. The 4 bar linkage mechanism is optimized by dynamics software. When luffing, the horizontal move of load is ensured, the transmission angle is increased and the pressure angle reduced, by which, the service lift of 4 bar linkage mechanism is increased.

3. 360° slewing, wide working area;

4. PCL control, AC frequency speed control, stable and reliable operation;

5. Remote control is available if necessary;

6. Enough protection devices, communication and lighting system;

7. Adopt electronic balance system to prevent overload of opening and closing mechanism and lifting mechanism;

8. The luffing mobile counterweight is adopted so that when operating, the upsetting moment caused by load is minimized and the service lift of revolving support is increased.

 

 

 

 

 

 

 

https://www.weihuagantrycrane.com/product/Portal-Crane.html

Email: weihua@craneweihua.com

WhatsApp: +86 15093392066