Minster PM4 Presses

Minster’s PM4 Piece-Maker is designed for today’s high-speed lamination production requirements. The PM4 has been configured to provide increased energy while operating at higher speeds with larger upright openings and reduced deflections. 

The PM4 offers some of the most technologically advanced features in the material forming industry.

  • High Speed, Dynamically Balanced Presses
  • 250-600 Tons Capacity
  • Up to 525 SPM


  • Minster’s Production Management Control
  • Massive Cast Frame Construction
  • Gib Clearance Monitoring
  • Quick Access Feature
  • Motorized Slide Adjustment
  • Lower Deflection and Greater Flexibility
  • Wide Upright Openings
  • Patented Minster Hydraulic Clutch and Brake
  • Eight-Point Hydrostatic/Hydrodynamic Gibbing
  • Full Wrist Pins
  • Eccentric Shaft
  • Reverse Load Rating
  • Hydrodynamic Drive Bearings
  • Hydraulic Locking
  • Flywheel Drive Arrangement for Maximum Efficiency
  • Monitored Lubrication with Variable Frequency Regulation
  • Drive Motor
  • Built-in Isolation Mounts
  • Flywheel Brake
  • Dynamic Balancing
  • Die Guarding
  • Crankshaft Extension


  • Eddy Current Drives
  • Adjust In Motion
  • Coil Line Interconnects
  • Additional Part Blow-Off Valve
  • Automatic Shutheight Adjustment