J21S Power Press Machine
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.
- J21S-40T
- J21S-125T
| Parameter name | J21S-40T | J21S-125T | |
| 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 |
| 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 |
| Width mm | 300 | 480 | |
| Die handle bore | Diameter mm | 50 | 70 |
| 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 |
| Speed r/min | 1440 | 1460 | |
| Size of shape | Length mm | 1800 | 2200 |
| Width mm | 1100 | 1500 | |
| Height mm | 2400 | 2800 | |
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.
