315 Ton FourPillar Hydraulic Press for Recycled Plastic Industrial Basin Tubs

Capacity & Structure

• Rated Capacity: 315 Tons (≈ 3090 kN)
• Press Type: Fourpillar hydraulic press
• Frame: Heavy welded steel, stressrelieved
• Structural safety factor: ≥ 1.25–1.30
• Deflection @ full load: ≤ 0.05–0.07 mm

Hydraulic System

• Main cylinder: Double acting
• Bore: 300–350 mm
• Stroke: 300–500 mm
• Working pressure: 25–30 MPa

Compression Molding Cycle

• Material charging (molten/extruded batch feed)
• Mold closing (fast approach)
• Precompression (material flow distribution)
• Full compression (shape + density formation)
• Cooling under pressure
• Controlled decompression
• Mold opening
• Pallet ejection

Cooling

• Mold-integrated cooling channels
• Chiller system (10–20°C water)

Cooling cycle: 200°C → 60–80°C before demolding

Benefits:

• Prevents shrinkage
• Maintains dimensional accuracy
• Improves cycle efficiency

Working Envelope

• Platen size: 600 × 600 mm
• Optional: 800 × 800 mm
• Daylight: 700–1000 mm
• Columns: Ø 100–140 mm

Control System

• PLC: Siemens / Mitsubishi / Beckhoff
• HMI: Multi-recipe automation
• Monitored parameters:
  • Pressure
  • Temperature
  • Cooling time
  • Cycle time
• Features:
  • Data logging (quality traceability)
  • Safety PLC + interlocks
  • Industry 4.0 compatibility

SM 315 HP — Model Specifications

• Nominal Force: 3150 KN
• Maximum Hydraulic Pressure:  25 MPa
• Max Opening Height of the Slider:  1000 mm
• Max Stroke of the Slider:  600 mm
• Effective Bed Size:  800 × 800 mm
• Slider Down Speed:  100 mm/s
• Slider Pressing Speed:  7–12 mm/s
• Slider Return Speed:  90 mm/s
• Ejector Cylinder Nominal Force:  300 KN
• Stroke of the Ejection Cylinder: 300 mm