Economy Wire Rope Crab

1. Hoisting Motor

Highly efficiently squirrel cage motors which especially designed for hoist are applied and comply with IEC specification with insulation F degree and start torque over 200%.

2. Electromagnetic Disc Type Dual DC Brake

Use electromagnetic disc type brake of Lenze, the biggest supplier in Germany, to perform the brake torque over 250% with durable wear-resisting, long life, rapid reaction, low noise and convenient for maintenance.

3.Gear Box

Apply alloy steel as base materials of gears with hardness higher than HRC 50 degree and oil bath lubrication of gears for long lifespan.

4.Drum

Apply qualified high-strength steel.

5. Screw Type Up/Down Limit Switch

Apply principle of screw rotation to set up/ down limit and terminal limit to avoid crab damage for wrong direction.

6.Junction Box

Only junction box left on the crab.

7.Anti-loose Device

Prevent wire rope loose and out of grooves.

8.Transmission of Traversing

a)Soft Start/Stop Reduction Gear Motor:
Utilize of flywheel inertia, the motor works very smoothly when it starts and stops.
b)Hollow shaft gear reducer motor:
Integrated motor, brake and gear box for easy fabrication and maintenance.

9. Wire Rope

Safety factor complies with FEM requirements. Dual rope designs for bottom hook stable and easy hanging.

10. Bottom Hook Set

Hooks are made by forged steel with proper diameter of reeving wheel to ensure life span of wire rope.

11.Control Equipment

Control panel sets on the walkway.

12.Anti-sway (Optional Function)

Anti-sway for traversing and travelling corrects swing motion during operation.