SKS Hydraulic Hole Digger / Knock out Punch Set
Model: JMSYD-8
SPECIFICATIONS
| Item No: | JMSYD-8 |
| Capacity: | 8 Tons |
| Thickness of Iron Steel/Stainless: | 1.6mm / 3.2mm |
| Allocated Mould: | D22,D27,D34,D43,D49,D60mm |
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
Built with hardened steel components
Designed for electrical and industrial metalwork
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