J21S Power Press Machine

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The J21S power press machine features a steel plate welding bed that has an outstanding vibration absorption. The throat features a certain depth and compact structure to ensure a safe operation.

Nominal Pressure (kN)

400-1250

Slide Stroke (mm)

100-140

Slider Stroke Number (t/min)

45-55

Maximum Shut Height (mm)

320-400

Parameters

Parameter Name
Nominal Pressure (kn)		400	1250
Nominal Working Stroke (mm)		6	10
Slide Stroke (mm)		100	140
Slider Stroke Number (t/min)		55	45
Maximum Shut Height (mm)		320	400
Closed Height Regulation (mm)		80	100
Distance from the Centerline of the Slider to the Bed (mm)		500	500
Table Size	Length (mm)	400	660
Table Size	Width (mm)	650	980
Worktable Blanking Hole Size	Length (mm)	170	260
	Width (mm)	240	400
	Diameter (mm)	160	210
Total Dimensions of Slider Bottom	Length (mm)	220	360
Total Dimensions of Slider Bottom	Width (mm)	300	480
Die Handle Bore	Diameter (mm)	50	70
Die Handle Bore	Depth (mm)	70	90
The Distance between Two Columns of the Machine Body (mm)		260	370
Net Distance between Worktable and Track (mm)		340	430
Pad Thickness (mm)		80	110
Motor	Power (kw)	4	11
Motor	Speed (r/min)	1440	1460
Size of Shape	Length (mm)	1800	2200
	Width (mm)	1100	1500
	Height (mm)	2400	2800

Component Description

The main components of the press include the following: Machine body, Transmission, Clutch, Slider, Brake, Control mechanism.

Machine body

The machine body is a cast component of the c-shaped open double column. The workbench has a rectangular hole in the center to allow finished work pieces or scraps to fall through.
Transmission

The transmission system is powered using a motor mounted on the back of the fuselage.
Clutch

The clutch member is positioned at the right end of the crankshaft. The clutch key is a semicircle key that relies on a pull spring in order to be placed into a regular open state.

Slider

The slider is located between the fuselage guideway. The slider moves straight up and down in the V-groove of the guide rail using the crankshaft rotary motion.
Brake

The brake wheel is circular and attached on the left end of the crankshaft. It is a continuous brake, with the belt made using a soft steel leather, or internal riveted copper asbestos brake tape.
Control mechanism

This machine uses a mechanical manipulation mechanism to control the slider for single punching with a foot lever.