SKS Hydraulic Hole Digger / Knock Out Punch Set
Model: JMSYK-15
Specifications
| Item No. | JMSYK-15 |
| Capacity | 12 Tons |
| Thickness of Iron Steel/Stainless | 2.0 / 4.0mm |
| Allocated Mould | D63, D76, D80, D89, D100, D114mm |
Material Components
| Component | Material | Description |
| Tool Body | Carbon steel / alloy steel | High strength, impact-resistant |
| Hydraulic Cylinder | Precision steel | Withstands high pressure |
| Punch & Dies | Heat-treated tool steel | High hardness, wear-resistant |
| Draw Stud | Hardened steel | Transfers punching force |
| Handle Grip | Reinforced plastic / rubber | Ergonomic, anti-slip |
| Seals (O-rings) | Nitrile rubber (NBR) | Oil-resistant sealing |
| Hydraulic Fluid | Mineral oil | Force transmission medium |
FEATURES
Portable hydraulic design for field work
Interchangeable punches and dies
Clean, burr-free hole cutting
Rotatable ON/OFF valve knob for control
High efficiency with minimal manual effort
Compact kit with carrying case
OPERATING PRINCIPLE
Works using hydraulic pressure (Pascal’s Law):
Manual pumping generates hydraulic pressure
Pressure drives the piston forward
Punch is forced through metal sheet
Die supports material → produces clean circular hole
APPLICATIONS
Electrical panel board fabrication
Conduit hole punching
Switchgear and control panels
Industrial sheet metal work
Construction and maintenance
SAFETY & MAINTENANCE
Safety
Do not exceed rated capacity or thickness
Ensure correct die alignment before punching
Keep hands clear of punch area
Maintenance:
Check hydraulic oil regularly
Clean and lubricate dies
Replace worn seals and studs
Store in dry protective case