Precision Machine Tool

Die & punch grinding – applications

 

Press tool punches

Precision grinding of round, square, stepped, and profile punches for press tools.

 

Die inserts & bushes

High-accuracy grinding of die bushes and inserts to achieve tight tolerances.

 

Blanking & piercing tools

Grinding of punches used in blanking, piercing, and trimming operations.

 

Progressive & compound dies

Finishing of critical punch and die components for multi-stage press tools.

 

Carbide punches & dies

Precision grinding of tungsten carbide punches and dies using diamond wheels.

 

Punch resharpening

Regrinding of worn punches to restore cutting accuracy and extend tool life.

 

Tool room & maintenance jobs

High-precision grinding for tool room manufacturing and repair activities.

 

Automotive press components

Grinding of punches used in sheet metal forming for automotive parts.

 

Electrical & electronics industry tools

Fine grinding of punches for connectors, terminals, and precision components.

 

Aerospace & precision engineering tools

High-accuracy grinding of critical punch and die parts requiring superior finish.

 

Key benefits of die & punch grinding

 

High dimensional accuracy

 

Superior surface finish

 

Extended tool life

 

Consistent press performance

Plunge grinding machine – technical specifications 1. Grinding capacity

 

Maximum grinding diameter: 200 – 350 mm

 

Maximum job length: 50 – 300 mm

 

Centre height: 130 – 200 mm

 

Maximum workpiece weight: up to 50 kg

 

2. Grinding method

 

Grinding type: plunge grinding (no table traverse)

 

Operation mode: plc / cnc controlled

 

In-feed control: servo / nc controlled x-axis

 

Feed resolution: 0.001 mm

 

3. Grinding wheel

 

Wheel size (od × width × bore): 300–450 × 50–100 × 127 mm

 

Wheel type: aluminum oxide / cbn

 

Wheel spindle motor: 7.5 – 15 hp

 

Wheel speed: constant surface speed (css)

 

4. Work head & job holding

 

Work head speed: infinitely variable

 

Work holding: between centres / chuck / collet

 

Tailstock: mt-3 / mt-4 (if between centres)

 

5. Accuracy & finish

 

Roundness: ≤ 0.003 mm

 

Size repeatability: ±0.002 mm

 

Surface finish: up to ra 0.2 – 0.4 µm

 

6. Automatic grinding functions

 

Automatic rough & finish cycles

 

Automatic spark-out

 

Automatic wheel dressing with compensation

 

In-process gauging (optional)

 

7. Coolant system

 

High-pressure coolant pump

 

Multi-stage filtration system

 

Coolant tank capacity: 150 – 300 l

 

8. Machine construction

 

Heavy-duty cast iron base

 

Hardened & ground guideways

 

Turcite-b coated slideways

 

9. Electricals

 

Power supply: 415 v, 3-phase, 50 hz

 

Total connected load: 20 – 30 kw

 

10. Standard accessories

 

Cnc / plc controller

 

Automatic wheel dresser

 

Coolant system

 

Balancing arbor

 

Safety guarding & work light

 

11. Optional accessories

 

Cbn wheel package

 

In-process sizing system

 

Automatic loading system

 

Mist extractor

 

Steady rest