LH double-girder crane with electric hoist consists of box-shaped bridge, trolley travelling mechanism, crab and electric equipment. lt employs fixed electric hoist which is fitted on crab frame as hoisting mechanism. The crab uses LD drive to run, while the trolley adopts LD drive or QD drive. It has three operation modes:ground handle,wireless remote control and cab.The cab has two types: open cab and closed cab.

A compact designed crab unit for the medium load capacity range, with articulated end carriage joints ensuring positive contact

of all four wheels with the track, with two direct drive cross travel motors. Load capacity range: 3 ton to 32 ton.

LH double-girder crane with electric hoist consists of box-shaped bridge,trolley travelling mechanism,crab and electric equipment. 

It employs fixed electric hoist which is fitted on crab frame as hoisting mechanism. The crab uses LD drive to run,while the trolley 

adopts LD drive or QD drive.

* Available in load capacity up to 32 tons.

* Fitted with CD/MD wire rope hoisting and travel drive units.

* Two lifting speeds in 1/10 ratio.

* Trolley speeds can be variable by VVF(VFD Variable Frequency Device)

* Two upper and two lower precision limit switches.

* Heavy duty wear resistant rope guide.

* Mechanical brake

* Lifetime lubricated gear drives.

* Very compact and light weight design.

* All crabs with articulate joints for equal loading on all four wheels.

* All crabs with two drives for cross travel.

* High capacity twin drive crab units also available.

* Complete with Hook block, pendant and all famous brand electricals.

Product Features

1)Save the space and electricity

2)Favorable performance

3) Smooth starting and stopping

5) Reasonable structure

6) Operating easy and convenient maintenance

7) Excellent exchangeability for parts and components

Mechanical Parts

1. Double welding box girder, beam deflection with DIN/FEM standard

2. Steel Material: Chinese standard Q235B and Q345B

3. Trolley rail is made of high strength hot rolled flat steel (16 Mn)

4. Epoxy zinc-rich painting for one bottoms and two sides of 120μm thick, to achieve a long lifespan, beautiful appearance and 

good luster

5. The girder and end beam are connected together by high strength bolts to ensure the structure strength and precision of the 

whole machine

6. The end beams are equipped with flat wheel or double rim wheels, anti-friction bearings, buffer blocks and derailment 

preventing end plate

7. Maintenance walkway is located on one side of the main girder, consisting of flower pattern plate, 1050meters handrail.

Design Standard

1. Overhead crane and gantry crane manufacturing and tolerances of rail installation GB/T10183-2005

2. Crane test specification and procedures GB/T5905-1986

3. Crane electric control equipment JB/T4315-1997

4. Important application wire rope GB8918-2006

5. Carbon structure steel GB/T700-2006

6. Low alloy high strength structure steel GB/T1591-2008

7. Welding joint radiographic inspection standard JB928-1994

8. Steel welding joint manual ultrasonic flaw detection way GB11345-1989

Safety Features

1 Overload warning and limiter

2 Lifting height limit device

3 Voltage lower protection function

4 Phase sequence protection function

5 Emergency stop function

6 Hooks with latch

(Noted: According to your requirement, we supply the Individual solutions reaching from planning to implementation)

The structure,simple and convenient, features low entire height and light dead weight, so that it is applicable to operational sites of medium and small lifting load such as factories and mines, workshops and warehouses.

Double Beam Double Trolley Overhead Crane is widely used Machinery fabrication, Metallurgical plant auxiliary workshop, Storage, Stock ground, and Power station.