| Model | MH-21AC | MH-31AC |
| Electrode force |
19.6 to 137.3N (2 to 14kgf) Stepless adjustment |
49 to 274.5N (5 to 28kgf) Stepless adjustment |
| Diameter of electrode |
Φ4mm or Φ6mm |
Φ8mm |
| Drive method |
Pneumatic or foot step, 0.35MPa min. |
| Stroke length |
20mm |
| Power requirements of solenoid valve |
100 / 110 / 200 / 220VAC, 24VDC |
| Air pressure |
0.35 to 0.5MPa |
| Mass |
3.5kg |
5.5kg |