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Double beam hanger gantry crane is suitable for general loading/unloading and lifting/handling operations in open-air warehouses or railways.

It is composed of beam, support legs, crane travelling mechanism, trolley, electric equipment and so on. The strong legs shape is like a English Letter U, this design is very benefit when the container pass by thought the legs. The control mode could be ground control, remote control, cabin control.

The bridge adopts box welded structure, and the cart running gear of the cart using driven separately. All the mechanism operation operated indoor. The conductive type of crane is divided into two kinds: cable and sliding wire. This crane is suitable for the temperature of -25 ℃ —+40 ℃, the humidity is less than 85%, and it should work in the place without fire, explosion and corrosivity, also prohibit to lift of toxic, flammable and explosive materials. The product is compact in structure and reliable in operation，it is an advantageous tool for improving working conditions and improving labor production.

Overall Drawing

Technical Specification

1.Purpose

Double beam hanger gantry crane is designed and manufactured according to standard GB/T14406-93. The operation is divided into two kinds: ground control and driver control. The product has the advantages of simple structure, maintenance convenience, light weigh and so on.

2.Structural Style

Double beam hanger gantry crane’s gate structure is composed of two main beams, outrigger, upper end beam and lower end beam. The gate structure is divided into box, truss, box and truss mixed and other forms, it is welded by steel plate and steel section; The main beam, outrigger and the lower end beam are connected by bolts for storage and transportation easily.

Lifting mechanism

Trolley assembled by electric motor, reducer and reel as a lifting mechanism, It can run along the main beam.

3.Cart travelling mechanism

Cart travelling mechanism composed by electric motor, reducer and large wheel or composed by colloidal-pin gear speed reducer and large wheel.
Feature
1.Mechanical:
-Double main girder, welded box beam
-Material: Carbon steel with high quality of Q235B or Q345B
-The main girder is connected by strength bolt.
-Weld joint tested by X ray or ultrasonic examination;
-Forged Crane wheels
-Trolley with Compact structure, small size and light;
-Lifting mechanism is rigid open winch trolley
-Compacted gear motor driving, harden gear, hydraulic brake
-Excellent driving properties, smoothly moving
-Shot-blasting Sa2.5 for complete girder after welding, stress release
-Epoxy zinc rich high quality painting, 2x2 with 140 M
2.Electrical
-Conductor power supply
-All hoist and crane movements are independent and can be run simultaneously.
-Protection degree IP55
-The components are positioned in a maintenance friendly way, and the whole layout provides with good protection
-Festoon cables are suspended on cable saddles, fixed to cable trolleys, running in a galvanized C-track.
3.Protective Features
- Overload Limiter, Limit Switch (Lifting and Traveling), Interlock protection device, Buffer, Rail clear plate, Protective cover, Bus Bar preventer plate, Anti-collision device, Light alarm devices Main isolating switch, Emergency stop system, Motor overload protection
-equipped with rainproof devices for lifting mechanism, electrical control box.

Application Notice

After the crane is delivered, it should avoid twisting, bending and bruising when unloading and transporting, the product should be stored stable on tough floor to prevent the main beams sinking with the passing of time.

In order to make the normal operation for the gantry crane, operator should be regular maintenance and adjustment the part of product.