JH21L C Frame Crank Type Stroke Adjustable Press

Features of variable stroke press:

1) C frame optimized structure

2) Steel welded robust body

3) Eccentic bush system for adjusting stroke length

4) Applicable for different sizes dies in one press

5) 8-sides slide guide rails for high precission, except JH21-25L

6) Thin oil lubricate, except JH21-25L

Details of stroke adjustable press:

Power press stroke length adjusting mechanism The mechanism is installed in front of the crankshaft, adjustable by manual. Motorized adjustment is optional. There is a hole for operator to check the right stroke length position. A knob for adjusting the stroke length is located on the press console. When adjusting, the pneumatic cylinder will drive the adjusting shaft out. Use a spanner to adjust the shaft to the wanted position. Turn back the stroke adjusting knob and the shaft will return back to original position.

Standard equipment of the stroke adjustable press

1. Dry type combined pneumatic clutch and brake

2. PLC central control system with HMI

3. Hydraulic overload protection system

4. Ram motorized adjusting system for 60ton and bigger sizes presses

5. Frequency inverter for adjustable stroke speeds

6. Eight faces ram gibs with bronze guide plates (25ton press is 6 faces type)

7. Automatic circulate thin oil lubrication system

8. Anti-vibration pads for press machine installation

Technical parameters of adjustable stroke crank press