Circuit Breaker for crane power supply

Circuit breaker is used to cut off fault circuit of power supply system of a overhead crane or gantry crane.

Circuit breaker

1. Application: this circuit breaker is for cut off fault circuit.



2. Two types: high voltage circuit breaker and low voltage circuit breaker. The demarcation line is not so clear, and which beyond 3KV is usually called high voltage circuit breaker.

3. The function of circuit breaker is to protect power circuit and electric motor.

4. Circuit breaker is usually constituted by contact system, arc extinguishing system, operating mechanism, the release and the shell.

5. Low voltage circuit breaker is also called air switch, and used to connect or cut off the load circuit. It also could be used to control the electric motor which is not frequently start.

https://www.weihuacraneglobal.com/product/Circuit-Breaker.html

Email: weihua@craneweihua.com

WhatsApp: +86 15093392066

Lifting Height Limiter for hoist, crane

Working principle of lift height limiter: when the crane rises, the crane wire rope drives the crane wire rope guide to move, the rope guide drives the contact on the limiter, the contact drives the limit rod, and the limit rod drives the limiter to move left or right, and disconnect the two power supplies in the up or down contactor entry, the motor is powered off and stopped, then the working of the limiter is completed.

lift height limiter

1. Application scope: Power distribution cabinet and vertical transport machinery.
2. The lifting height limiter can be installed in the power distribution cabinet or next to the winch.
3. Simple structure, quick action, safe and reliable, automatic control.

https://www.weihuacraneglobal.com/product/Lifting-Height-Limiter.html

Email: weihua@craneweihua.com

WhatsApp: +86 15093392066

Crane Track Rails for Overhead Crane, Gantry Crane, Portal Crane, STS, RMG Crane

Crane rails are the main body of crane tracks. Crane rails provide a continuous, smooth and low-resistance rolling surface for the crane wheels. It is employed to guide the wheels of the crane, bear the pressure of the wheel, and transmit it to the sleeper and ground. Weihua provide various crane rail models such as P24, P38, P43, QU70, QU80, QU100, QU120, etc. for the different crane and special conditions.

Crane rails 

Features of Crane Rails:
1. Application: Rails/tracks for Overhead Crane, Gantry Crane, RMG, Project Crane, etc.
2. Pulling wire rope to detect the linearity of rails. Pulling a diameter 0.5mm wire rope between two ends stop lever, and using a plumb bob to detect point by point, and the interval should be 2 meter.
3. The crane rail joints could be cut into straight joint or 45°oblique joint.
4. P shape rail is the most commonly used.

https://weihuacraneglobal.com/product/Crane-Rails.html

Email: weihua@craneweihua.com

WhatsApp: +86 15093392066

Lifting Electromagnet Chuck Round Disc for Overhead Crane, Gantry Crane

A lifting electromagnet chuck is a disc-type electromagnetic lifter device for a lifting equipment such as overhead crane, gantry crane, truck crane, mobile crane, jib crane, etc.

lifting electromagnet chuck

Features:
1. Special magnetic circuit design with large air gap magnetic density. The coil is made of copper wire, and the coil protection plate is made of rolled high manganese steel plate with good wear resistance and strong impact resistance. Light weight, low energy consumption, heavy lifting capacity and long service life.
2. Reasonable insulation structure. The insulation treatment adopts vacuum drying and vacuum filling to improve the electrical and mechanical properties of the coil. The heat resistance grade of the insulating material can reach grade C.
3. The constant voltage control method is usually adopted. If the strong excitation control method is used, the lifting capacity can be further improved.
4. Simple structure, safe and reliable, suitable for all kinds of lifting equipment.
5. The electronic control device can be equipped with a wireless remote control device according to the user's crane parameters.








Note Before Ordering:

1. When the temperature of the lifted material is lower than 100℃, please choose the normal temperature type, when it exceeds 100℃, please choose the high temperature type. Please specify when it exceeds 600℃.

2. When the power-on duration exceeds 60%, please select high frequency.

3. When suspending materials in the water, please use the submersible type (diving depth ≤100m). The parameters of the submersible electromagnet are the same as those of the normal temperature type. If the user needs a diving type, please specify when ordering.

4. Auxiliary equipment: When using a single unit, select the rectifier control equipment and auxiliary equipment according to the power consumption (current). When multiple units are used in combination, select the sum of the power consumption (current) of the number of units used in combination.









Note For Use:

1. Check whether the parts of the electromagnetic chuck are damaged before use, and replace them in time.

2. Be sure to check whether the control hub is in good condition before operating the electromagnetic chuck.

3. Observe the surroundings before hoisting, prohibit people from approaching the working area, and prohibit equipment and hoisted objects from passing above the personnel.

4. Check whether the rated current is correct before lifting.

5. Before lifting, pay attention to check whether there are non-magnetic conductive objects between the lifting object and the lifting electromagnetic chuck, so as not to affect its lifting height.

6. The lifting electromagnetic chuck must be placed directly above the lifted object, and then energized to avoid small iron cuts.

7. When landing, be sure to observe the surrounding environment and keep safe.

8. Operators must pass strict training and get the certificate for operation.

9. It is forbidden for the operator to use the electromagnetic chuck after drinking to avoid accidents.

10. After the work, place the magnet chuck in a safe designated location to avoid accidents during placement.

https://weihuacraneglobal.com/product/Lifting-Electromagnet-Chuck.html

Email: weihua@craneweihua.com

WhatsApp: +86 15093392066

Crane Cable Chains

Description of Drag Chains:
Crane cable chains is a way for crane power supply. The power cable is built-in the drag chains for cable moving and protection.

Drag chains can be made by steel and plastic. Steel drag chains are made of steel and aluminum and can be customized. Drag chains are classified into bridge drag chains, fully enclosed drag chains, and semi-closed drag chains according to the use environment and requirements.

Drag Chains:

Application of Cable Chains:
The drag chain is used for the occasions of reciprocating motion, and it can traction and protect the built-in cables, oil pipes, air pipes, water pipes, etc. Drag chains have been widely used in CNC machine tools, electronic equipment, glass machinery, injection molding machine manipulators, handling machinery, plastic machinery, lifting equipment, woodworking machinery, automotive industry, industrial vehicles, metal processing machines, machine tools, casting machinery, port equipment, etc.



Features of Crane Drag Chain:
1. Especially designed for horizontally moving loaders and large cranes.
2. Modular design and fewer components significantly reduce installation time.
3. Good price, variable material and specifications.
4. Full sets including bracket, guide groove, and clips.
5. The drag chain or cable can be directly inserted into the guide groove. It can flexibly meet the installation needs of consumers in any environment.

https://www.weihuacraneglobal.com/product/Crane-Cable-Chains.html

Email: weihua@craneweihua.com

WhatsApp: +86 15093392066

Wire Rope for hoist, winch and crane

Wire rope is applicable for Overhead Crane, Gantry Crane, container cranes, shore crane, crawler cranes, offshore fixed cranes, pile drivers, ship unloader cranes, etc. Crane wire rope is constituted by steel wire, rope core and grease.

Wire rope

Features of Crane Steel Wire Rope:
1. Application: Lifting, towing, straining and load bearing of electric hoist or winch.
2. High strength with more than 1770Mpa tensile strength, large capacity, strong overload capacity, good elasticity, impact resistance and light self-weight.
3. Crane Wire Rope has good flexibility, stable operation and low noise during high-speed movement. Because it needs to be wound on multiple layers on the reel, it should have good bending fatigue performance.
4. It is reliable in work and will not break suddenly. This is a necessary condition for lifting and safe work.



According to the above features, we generally recommend that customers wire-contact wire ropes, such as 6*36SW. In special occasions, we recommend customers 8*36SW or compacted wire ropes.

https://www.weihuacraneglobal.com/product/Wire-Rope.html

Email: weihua@craneweihua.com

WhatsApp: +86 15093392066

Crane Control Handles / Pendant Controller and Remtor Controller for Crane and Hoist

Crane control handles can be a wire pendant, wireless remote control or radio control, etc. It can be used to control electric hoist, trolley crab, open winch hoist, etc. on the overhead crane or gantry crane. The wire pendant is usually with rated voltage below 500V, rated current below 15A, which can work in the rain and snow, dusty environment. The wireless remote control handle are different in size. It can be a handle piece or a control panel with joystick (This kind is for large cranes).

Crane control handles

Features of Wire Pendant and Wireless Handle Piece.

1. Nylon fiber shell, glass fiber, strong and durable;

2. Fixing screws, easy to install and simple;

3. Dust-proof structure, metal contact keys, feel comfortable;

4. ABS plastic body with good-looking appearance and reasonable structure.

5. Rubber cable sleeve and waterproof seal.

6. Simplified circuit for safety operation.

7. COB button.

8. Contact resistance ≤50M.

9. Mechanical life: Momentary type: press 1 million times, Emergency stop self-locking button: press 50,000 times.

10. Electric life: Emergency stop self-locking button: press 50,000 times.

11. Protection: IP65.











Joystick remote control is usually used for the control of Double Girder Overhead Crane and Gantry Crane. Different from a crane pendant control, this joystick control is U-frequency mainly with 1 or 2 joysticks to control the inverter cranes.







Features of Joystick Remote Control:

1. Anti-interference, large crystal oscillator above 100;

2. Programmable output settings, up to 16 output points;

3. Nylon-reinforced reinforced plastic case to prevent damage caused by falling and strong collision;

4. Operating distance can be 100 meters;

5. Receiver with output cable for easy and fast installation;

6. Transmitter three-stage power indicator;

7. Acceleration delay setting can be planned (making the crane run smoother);

8. Multiple security protection design: Hamming code watchdog line 32-bit non-repetitive identification code.







Main Data of Joystick Control:Size: 20*11*9 cm;
Weight: about 1 kg;
2 five-speed paragraph feeler;
6 single speed buttons (including power button);
1 emergency stop mushroom head;
1 rotating key;
2 2-stage selector switches;
2 3-stage selector switches;
More than 40 relay outputs (software settings);
Installed closed and open relay;
Support passive antenna (optional);
Working temperature: –35~+80°C;
Transmitter power supply 4 AA alkaline batteries / rechargeable battery;
Receiver power supply AC48/110/220/380V (optional);
Protection class IP65;
Identification code 4.3 billion groups no-repeat identification code;
Hamming code ≥ 4

https://www.weihuacraneglobal.com/product/Crane-Control.html

Email: weihua@craneweihua.com

WhatsApp: +86 15093392066