Rolling machine

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Rolling 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 started 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 using the cold drawing machine to draw steel pipes, the core rod is first placed into the inner hole of the pipe, 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 started, clamping the steel pipe with the plate teeth, 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 from the plate teeth, pushing the finished pipe out of the vehicle body, and the slider moves 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 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 the cold drawing of black and non-ferrous metal bars at room temperature, as well as the secondary processing of waste steel pipes after hot rolling and extrusion. It is used to produce small diameter pipes, serving as the main processing equipment for precision, thin-walled, and high mechanical performance pipes.

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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
Maximum System Pressure (Mpa)	31.5	31.5	31.5	31.5	31.5	31.5
Pump (Manual Variable Piston 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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