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Feature: Bridge Crane
After-sales Service Provided: Engineers available to service machinery overseas
Warranty: 1 year
Certification: ISO CE
Model Number: LDP
Brand Name: WEIHUA
Place of Origin: China (Mainland)
Span: 7.5-31.5m
Max. Lifting Height: No limint
Max. Lifting Load: 32t
Application: Widely
Condition: New
Working system: A3-A5
Lifting mechanism: Electric hoist
Main electrical parts: Siemens brand
Control method: Cabin, Pendent or remote controller
Current overload protection system: Included
Weight overload protection device: Included
Color: As you required

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, 1050meters handrail.

 

1. Both side of all the steel plate of crane are pretreatment by pretreatment production line, 
Sand blasting-- Primer spray--Primer drying. Eliminate the innerstress of steel plate, increase the adhesive force of the steel structure. Ensure the appearance and anticorrosion quality.
 
2. Steel plate cutting adapt whole sets Messer CNC plasma cutting machine from Germany, very fast cutting speed, little deformation, High precision, Deviation could be controlled within 1mm, it insure the raw material at high quality standard and can reach top level in the industry.
 
3. The welding of main beam adapt high efficiency and intelligent welding robot, Weihua are No.1 enterprise who adapt this high technology machine. The welding joint inside of the main beam adapt advanced MAG welding, adapt Ar+CO2 mixed protective gas, The 4 welding joint outside of the main beam adapt automatic submerged-arc fillet welding machine.
4. The welding of main beam adapt radiographic inspection and ultrasonic flaw detection for the welding joint and fillet weld position  
5. The welding of end beam adapt double gun gantry submerged arc welding, highly welding quality ensure the stable quality of the crane effectively. 
6. Adapt the steel plate rolling drum and wireless steel tube, Weihua has a set of steel plate rolling drum producing and processing line which is industry-leading level. From pre-bending by 1250t press machine, to Edge rolling by three-roller plate roll, at last the longitudinal joint and circumferential joint of drum are welded by automatic welding center and drum processed by heavy duty CNC horizontal machine tool.
7. The wheel and wheel axle and treating by high efficiency quenching and tempering, it can eliminate the internal stress effectively and ensure the processing precision, 
 
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. 
 
8. Weihua has top advanced processing and manufacturing equipment and processing technology in the crane industry all over China, at the same time, Weihua take the head in achieve the best and better management, best and better manufacturing, Try the best to ensure the Weihua product quality and satisfy the demand of customer. 
 
Parameter

Capacity

T

3

Span

m

7.5

11.5

14.5

17.5

19.5

22.5

Lifting height

m

                                       6, 9, 12,

Lifting speed

m/min

8 or 8/0.8

Hoist travelling speed

m/min

20 , 30

Crane travelling speed

m/min

20

30

Total weight

kg

2705

3519

4278

5066

5422

6877

Max. Wheel load

KN

20.1

23.38

24.51

28.05

29.02

32.93

Rail recommended

Model

24kg/m

Total motor power

kw

4.9

Main dimension (mm)

Span(m)

7.5

11.5

14.5

17.5

19.5

22.5

Rail top to crane top

H

1065

1130

1180

1230

1300

Rail top to hook center

H4

-130

-65

-15

35

105

Crane base distance

W

2500

3000

3500

Crane width

B

3000

3500

4000

Hook left limitation

S1

1413

Hook right limitation

S2

1496

Capacity

T

5

Span

m

7.5

11.5

14.5

17.5

19.5

22.5

Lifting height

m

                                       6, 9, 12,

Lifting speed

m/min

8 or 8/0.8

Hoist travelling speed

m/min

20 , 30

Crane travelling speed

m/min

20

30

Total weight

kg

3175

4000

4366

6066

6514

7507

Max. Wheel load

KN

29.7

33.7

36.47

40.13

41.49

44.27

Rail recommended

Model

24kg/m

Total motor power

kw

8.3

Main dimension (mm)

Span(m)

7.5

11.5

14.5

17.5

19.5

22.5

Rail top to crane top

H

1170

1255

1280

1360

1410

Rail top to hook center

H4

-175

-90

-65

15

65

Crane base distance

W

2500

3000

3500

Crane width

B

3000

3500

4000

Hook left limitation

S1

1405

Hook right limitation

S2

1496

Capacity

T

10

Span

m

7.5

11.5

14.5

17.5

19.5

22.5

Lifting height

m

                                       6, 9, 12,

Lifting speed

m/min

8 or 8/0.8

Hoist travelling speed

m/min

20 , 30

Crane travelling speed

m/min

20

30

Total weight

kg

4047

5378

6542

7741

8312

9804

Max. Wheel load

KN

49.78

57.88

62.64

66.83

68.83

73.2

Rail recommended

Model

24kg/m

Total motor power

kw

13.8

Main dimension (mm)

Span(m)

7.5

11.5

14.5

17.5

19.5

22.5

Rail top to crane top

H

1075

1195

1305

1385

1475

Rail top to hook center

H4

-175

-90

-65

15

65

Crane base distance

W

2500

3000

3500

Crane width

B

3000

3500

4000

Hook left limitation

S1

1840

Hook right limitation

S2

1840