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Cold drawing machine
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  • Cold drawing machine

Cold drawing machine

The precision hydraulic cold drawing machine first inserts a core rod into the inner hole of the pipe when drawing steel pipes. Then, the core body is placed, and the front end of the steel pipe that has been threaded onto the core is pushed out of the extraction block. The pre-tightening oil cylinder is activated to clamp the steel pipe, and the vehicle is pulled to the starting position. The main oil cylinder begins to draw out. At the same time, the gas cylinder is pulled out, the end of the steel pipe is released, and the finished pipe is pulled out from the valve body. The slider moves in the opposite direction, allowing the plug to be quickly extracted from the pipe, facilitating smooth punching. When drawing steel pipes with the cold drawing machine, the core rod is first placed inside the pipe's inner hole, then the core rod head is installed, and the front end of the steel pipe that has been placed on the core rod head is pushed out to the drawing die seat. The pre-tightening cylinder is activated to clamp the steel pipe, and the traction vehicle is in the starting position, while the main cylinder begins to pull. At the end of the drawing process, the pre-tightening cylinder moves, releasing the steel pipe fork, and the finished pipe is pushed out of the vehicle body. The slider moves in the opposite direction, allowing the plug to quickly exit the pipe, ensuring smooth unloading. In the 1990s, with the continuous in-depth research and application of cold drawn steel pipe technology in China, cold drawn steel pipe technology has been widely applied in the manufacturing of hydraulic cylinders and oil cylinders for engineering machinery. The cold drawing machine is the main processing equipment for cold drawn steel pipes, used for cold drawing of black and non-ferrous metal bars at room temperature, as well as secondary processing of waste steel pipes after hot rolling and extrusion. It is used to produce small diameter pipes and is a major processing equipment for precision, thin-walled, and high mechanical performance pipes.

Description

The precision hydraulic cold drawing machine first inserts the core rod into the inner hole of the pipe when drawing steel pipes, then places the core body, and pushes out the front end of the steel pipe that has been threaded onto the core. Start the pre-tightening oil cylinder to clamp the steel pipe and pull the car to the starting position. The main oil cylinder begins to draw out. At the same time, the gas cylinder is pulled out, the end of the steel pipe is released, and the finished pipe is pulled out from the valve body, with the slider moving in the opposite direction, allowing the plug to be quickly extracted from the pipe, facilitating smooth punching. When using the cold drawing machine to draw steel pipes, first place the core rod into the inner hole of the pipe, then install the core rod head, and push out the front end of the steel pipe that has been placed on the core rod head to the drawing die base. Start the pre-tightening cylinder to clamp the steel pipe with the plate teeth, and the traction vehicle is in the starting position, with the main cylinder beginning to pull. At the end of the drawing, the pre-tightening cylinder moves, the plate teeth release the steel pipe fork, and the finished pipe is pushed out of the vehicle body, with the slider moving in the opposite direction, allowing the plug to quickly exit the pipe, ensuring smooth discharge. In the 1990s, with the continuous in-depth research and application of cold drawn steel pipe technology in China, cold drawn steel pipe technology has been widely used in the manufacturing of hydraulic cylinders and oil cylinders for engineering machinery. The cold drawing machine is the main processing equipment for cold drawn steel pipes, used for cold drawing of black and non-ferrous metal bars at room temperature, as well as secondary processing of waste steel pipes after hot rolling and extrusion. It is used to produce small diameter pipes, precision, thin-walled, and high mechanical performance main pipeline processing equipment.

Product Parameters

Model
JLB150T
JLB250T
JLB300T
JLB400T
JLB600T
JLB1000T

Maximum Pulling Force

(KN)

1630
2700
3200
4100
6500
12000

Drawing Speed

(M/min)

0-5.5
0-4.5
0-4.5
0-4
0-3
0-3

Effective Length of Finished Pipe

(M)

1.5-10
1.5-10
1.5-10
1.5-10
1.5-10
1.5-10

Thickness of Finished Pipe

(mm)

20
25
30
33
42
70

Main Oil Cylinder

(mm)

Φ320/Φ 150x10000
Φ420/Φ 210x10000
Φ450/Φ 210x10000
Φ500/Φ 220x10000
Φ630/Φ 280x10000
Φ850/Φ 350x10000

Number of System Stations

(Station)

2
2
2
2
2
2

System Working Pressure

(Mpa)

26
26
26
26
26
26

System Maximum Pressure

(Mpa)

31.5
31.5
31.5
31.5
31.5
31.5

Pump (Manual Variable Plunger Pump)

160Lx3
160Lx2 250Lx1
250Lx3
250Lx3
250Lx3
400Lx3

Main Motor

(KW)

55x3
55x2 75x3
75x3
75x2 90x1
90x3
132x3
Dimensions (WxHxL)
1.6x1.4x42
1.7x1.5x44
1.7x1.5x44
1.9x1.8x45
2.1x2x45
2.65x2.65x60

Weight

(T)

86
100
120
180
220
300

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