20t Double Girder Overhead Travelling Crane

Description:

Overhead travelling crane is being divided into single girder overhead crane and double girder overhead crane。Overhead travelling crane is an overhead bridge crane that has one bridge girder that supports the trolley and hoist. The trolley and hoist run on the bottom flange of the bridge girder. The single girder bridge crane is considered top running when the bridge girder rides on top of the runway beams.

Overhead travelling crane belongs to light duty crane, can be used with Wire Rope and Chain Hoist （Electrical or Manual ）. Lifting capacity is from 1t to 20t, span from 5 m to 34 m, working condition is A3-A5, working temperature is -25°C to +40°C. Control mode can be ground and cabin control, the ground control divided into pendant and remote control. The cabin either close one or open one, can be installed at the left or right side up to different conditions.

Usage: 

Overhead travelling crane is widely used in plants, warehouse, and material stocks to lift goods and characterized by more reasonable structure and higher strength steel as a whole.

Components:

a) Steel structure: main bridge beam, end carriages with wheels driven by motors.

b) Hoisting mechanism: electric hoist mounted on main bridge beam.

c) Electrics: electric box/cables/operator.

Control method:  

a) Wireless Remote Control; b) Pendent Line with Press Button; c) Cabin Control

Painting:

Epoxy zinc rich primer+ micaceous iron oxide anchor coat + aliphatic polyurethane top coat

Color: according to your demand.

Average thickness: about 100 microns

Power supply: 380V/50HZ or as per client's requirement

Safety features:

1. Weight overload protection device: If the material is over the capacity, the crane will give a sharp warning for protection itself.

2. Emergency brake: If the operation staff encounters some emergency situation, we could start the emergency brake system to protection the related treasure.

3. Control Method: Ground control and cab control to avoid any injure to the operation staff

4. Main lifting motor: with thermal protection and currency protection.

5. Hooks with latch

6. Top quality long time bearing polyurethane materials buffer

7. Protective earthing

8. Crane traveling limit switches