Benefits At A Glance

Main Features

Simple and reasonable structure, high rigidity

Good craftwork, convenient manufacturing, Strong versatility

Small size, work class is not very high

It has constant speed and variable frequency speed regulation, stable travelling

User can choose according to different requirements.

Supply Scope

Our company supply the single girder overhead crane with lifting capacity: 1~20t, span:7.5~28.5m, lifting height 1~30m, low work class A3,A4. We also design and manufacture the nonstandard crane according users’ demanding.

Main Application

(1) Designed and made according to JB/T 1306 Electric Single-girder Crane

(2) The matched electric hoists have CD1 model, MD1 model, etc.

(3) It is a light & small lifting equipment with running on rail

(4) Hoisting goods in the factory, warehouse, stockyard

(5) Banned to use in such dangerous environment as easily combustible,explosive,etc

Applicable scope and working conditions

LD single girder overhead crane is used in ambient temperature of -25℃~+40℃,humidity≤85%,elevation under 1000 m; the average temperature does not exceed +35℃ within 24 hours, when the average temperature exceeds +25℃, relative humidity allowed temporarily up to 100% within 24 hours, in the temperature of +40℃, relative humidity not more than 50%.suitable power supply is 3-ph, 380V, 50HZ (can change as user demand).

Technical Data

Model: LH type

Load capacity: 5-50t

Span: 10.5-31.5 m

Lifting height: 6-30m

Lifting speed: 0.18-8m/min

Work duty: A3-A7

Support Customization: Yes


Main Structure and Feature

It mainly has three parts: mechanism part, (metal structure and crane travelling parts), electric

hoist(lifting mechanism), electrical equipments(safe protection, operation).

Main girder

1.Single girder, made by the high quality I steel and high quality U-shapped slot into composition

2.Material Q235B or Q345B ( similar as Fe37 or Fe52).

3.Main girders connected with bolts

4.Arched main beam according to request, the arch degree F should be (1/1000~1.4/1000) S, max. Arch degree be in the scope of middle span S/10.

End girder

1.Box structure girder welded by U-type groove and steel plate group or only steel plates, with features of light structure, good rigidity, appearance and welding technology.

2.Use LD single girder special wheel, light and strong versatility.

3.Buffers settled at the ends of end girder

Electric hoist

1.Lifting Mechanism - CD or MD wire rope hoist

Crane Traveling Mechanism

2.Drive separately, composed of traveling motor, traveling reducer, wheel group, etc.

Electrical Equipment

1.Trolley conductor or angle steel conductor power supply

2.Hoist and crane Separately control, move separately or together

3.Flat cable or special cable power supply for electric hoist

4.Galvanize slide and cable trolley, smoothly moving, appearance is


5.Electrical non-contact speed regulation control module

6.Operation, hoisting, the point start are very smoothly

7.Power leading has both methods of current collector and flexible cable

Bus bar/Slide wire

Electric cabinet


Safety Device

1.Outdoor cranes are equipped with lifting mechanism

2.electrical control box and rainproof devices

2.Overloading alarm, two grade of top dashing proof protection

3.Crane buffer

4.Anti-collision, sound and light alarm devices

5.Circuit self-check protector

6.Flow phase lack protection

Lifting limit switch

Electrical protection

Weight overload limiter


Traveling limit switch


1.Ground control and cabin control

2.The cabin has open style, close style,can fixed on left or right

3.The open direction include end open,side open or top open

4.The cabin includes special small room for single-girder and capsule cabin

5.Ground control has handle and remote control, do not need to set up special driver

6.Users can choose as you need

Pendant control

Remote control

Cabin control

The Structure Sketch

Application Examples

Production, Packaging And Transportation

  • Welding

  • Steel sheet cutting

  • Assemble and test

  • Raincloth packaging

  • Wooden box package

  • Wooden box package

  • Sea transportation

  • Railway transportation

  • Automobile transportation

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