JH21 Series Open Single-Point Pneumatic Punch Press:

Key Features

  1. High-Rigidity Steel Plate Welded Frame: The machine body is constructed with steel plate welding, ensuring excellent structural rigidity and stability during high-load operations.
  2. Overload Protection System: Equipped with a highly responsive and reliable overload protection device. It safeguards both the mold and the machine tool, allowing for quick recovery and minimal downtime in case of overload.
  3. PLC-Controlled Electrical System: The press adopts PLC-based electrical control for consistent, reliable, and stable operation.
  4. Enclosed Gear Drive with Oil Immersion Lubrication: Features enclosed gear transmission with oil bath lubrication, ensuring smooth power delivery, low noise levels, and long service life of key components.
  5. Modular Pneumatic Clutch-Brake Assembly: Utilizes a combined pneumatic clutch-brake unit with imported friction materials, delivering long service life, high safety, and precise response.
No. Description Quantity
1 Hydraulic Overload Protection Device 1 Set
2 Electric Slide Adjustment Device 1 Set
3 Electric Grease Lubrication Device 1 Set
4 Slide and Mold Balancing Device 1 Set
5 Electronic Cam (PAC10) Controller 1 Set
6 Pointer Type Crankshaft Angle Indicator 1 Unit
7 Digital Mold Height Indicator (0.1mm) 1 Unit
8 Constant Speed Motor 1 Set
9 Programmable Controller PLC 1 Set
10 Maintenance Tools and Toolbox 1 Set
11 Operation Manual and Inspection Certificate (Chinese Version) 1 Copy
No. Description Quantity
1 Manual Grease Lubrication Device 1 Set
2 Main Motor Reversing Device 1 Set
3 Upper Slide Material Device [Slide Knockout Rod] 1 Set
4 Preset Counter (6 Digits) 1 Set
5 Maintenance Hour Timer 1 Set
6 Photoelectric Safety Device 1 Set
7 Shockproof Device S78-10-06 1 Set
8 Quick Die Change Device (see attached drawing for details) 1 Set
9 Air Cushion Device Without Tank 1 Set
10 Secondary Drop Protection Device 1 Set
11 Safety Fence 1 Set


Quote on request Typical lead time 4–6 days · ISO-minded QA