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Feature: Bridge Crane
After-sales Service Provided: Engineers available to service machinery overseas
Warranty: 1 year
Certification: CE. ISO, etc
Model Number: ldc
Brand Name: Weihua
Place of Origin: China (Mainland)
Span: 7.5m~22.5m
Max. Lifting Height: 12m
Max. Lifting Load: 20ton
Rated Loading Capacity: 20ton
Condition: New

Specifications

General description

LDC Low Headroom Single Girder Overhead Crane is composed of girder weld by steel plate and I-steel, end girder, electric hoist and travelling mechanism. The electric hoist runs along the lower flange of the I-steel of the girder to accomplish article hoisting. It features light structure and easy installation and maintenance, and is widely used for different places for hoisting, such as factories, warehouses and material yards. It is prohibited to use in the environment with inflammable, explosive and corrosive media.

LDC Low Headroom Single Girder Overhead Crane is designed for low headroom workshop. The difference between them is the way of electric hoist running. The electric hoist of LDC is running at the bottom flange plate of girder and the electric of LDA is running at one side of the girder, which increase the work space of the hook and reduces the workshop height and cost.

If your workshop is narrow or not high enough, choose this kind of crane!

Mechanical parts

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

Steel Material: Chinese standard Q235B and Q345B

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

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

The girder and end beam are connected together by high strength bolts to ensure the structure strength and precision of the whole machine
The end beams are equipped with flat wheel or double rim wheels, anti-friction bearings, buffer blocks and derailment preventing end plate
Maintenance walkway is located on one side of the main girder, consisting of flower pattern plate, 1050 meters handrail.

The trolley frame, drum, and bogie frame and related big welding structure are treated by Annealing in the natural gas annealing furnace to ensure the Machining accuracy after welding. Weihua have car bottom  natural gas annealing furnace, the furnace chamber inside size (length*width*heigh) is 10000mmx4000mmx4000mm, this annealing furnace can satisfy the Stress-Relieving annealing treatment after welding for the trolley frame, drum, bogie frame, balance beam, spreader and all kinds of welding structure on the crane, Only Weihua has this ability in China Crane Hometown. 

Lifting capacity (T)

1,2,3,5,10T

16,20T

Span(M)

7.5-31.5M

Overhead Crane travelling mechanism

Travelling speed(m/min)

20

30

45

60

75

20

30

45

60

75

Reducer ratio

58.78

39.38

26.36

19.37

15.88

58.78

39.38

26.36

19.37

15.88

Motor

Model

ZDY21-4

ZDY21-4

ZDY122-4

ZDY131S-4

ZDY112L1-4

Power(kw)

2×0.8

2×1.5

1.5×2

2.2×2

2.2×2

Rotation (m/min)

1380

1380

Lifting mechanism

(electric hoist)&electric hoist travelling mechanism

Electric hoist model

CD1/MD1

MD1/HC

Lifting speed (m/min)

8,8/0.8 7,7/0.7

3.5 3.5/0.35

Lifting height (m)

6 ,9 ,12, 18, 24, 30

12,18,24,30

Travelling speed (m/min)

20(30)

20(30)

Motor

Taper Squirrel-cage type

Taper Squirrel-cage type

Work duty

A3-A5

Power supply

380V 50HZ three phase or according to your requirements