H-frame Mechanical Press with Variable Stroke, PMV 400, HIDROGARNE

Hidrogarne PM Series are H-frame double-column mechanical presses designed for a wide range of metal forming applications in industries such as automotive, aerospace, railway and other heavy-duty stamping environments. Due to their high rigidity and energy capability, they are especially suitable for drawing operations.

The PM Series features double-gearbox designs with one or two connecting rods. Frames are manufactured from S355JR steel and undergo stress relieving and precision machining after welding to ensure perfect parallelism and accuracy. Design is carried out using CAE and finite element method software.

Structure and precision:

• Welded and stabilized frame made of S355JR steel.
• Post-weld precision machining for maximum accuracy.
• CAE / finite element method design for optimized strength and service life.
• High-strength forged steel connecting rod(s) with high-performance alloy bushings.
• Prismatic and sliding guide dimensions selected for maximum rigidity and minimal deformation under heavy loads.

Kinematics and performance:

• Complex eccentric transmission system with opposite rotation.
• Double speed reduction and long stroke capability.
• High energy output even at very low nominal speeds.
• Ideal for drawing and forming operations.

Lubrication system:

• Centralized automatic lubrication system.
• Programmable progressive oil distribution.
• Reduced wear and extended component lifetime.

Overload protection and compensation:

• Overload protection unit to safeguard the press and the installed tooling.
• Safety valve releases oil from the chamber if nominal load is exceeded.
• Slide and die weight compensation by two pneumatic cylinders.

Clutch and brake system:

• Electro-pneumatic clutch-brake unit.
• Double safety solenoid valve and crossflow system.
• Pneumatic system includes compensating air tank, FRL unit, pressure switch and safety valve.

Electrical equipment and safety:

• Control panel with operating modes: manual, semi-automatic or automatic.
• Redundant and self-monitored electrical and hydraulic actuators.
• Additional PLC for control and safety functions.
• Low-voltage two-hand control and foot pedal.
• Side safety guards with opening capability.
• Category IV safety light curtains on the working area sides.
• Compliance with CE safety requirements.

PM model range:

• PMF — 100 to 400 t:
  • Double gearbox, 1 connecting rod, fixed stroke.
  • Slide with 6 prismatic guides.
• PMV — 100 to 400 t:
  • Double gearbox, 1 connecting rod, adjustable (variable) stroke.
  • Slide with 6 prismatic guides.
• PMF2 — 300 to 630 t:
  • Double gearbox, 2 connecting rods, fixed stroke.
  • Slide with 6 prismatic guides.
• PMF2L — 300 to 630 t:
  • Double gearbox, 2 connecting rods, fixed stroke.
  • Enlarged table for large tooling.
  • Slide with 6 prismatic guides.

Hidrogarne PM Series delivers maximum rigidity, energy-efficient kinematics and advanced safety systems for heavy-duty stamping and drawing applications.