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Moulding Machine Clamp Force Requirements

Moulding Machine Clamp Force Requirements

This information should be used as an ‘on the spot’ reference only. Users should follow the material suppliers processing data sheets.

MATERIAL CLAMP FORCE IN TONNES/SQ CM FLOW PATH/WALL THICKNESS RATIO
ABS 0.38-0.62 100-200:1
HIPS 0.15-0.31 250-300:1
CAB 0.15-0.31 300-380:1
HDPE 0.23-0.39  
LDPE 0.15-0.31  
NYLON 6 0.62-0.77 160-320:1
NYLON 6 (30% GF) 0.7-0.85 140-275:1
NYLON 6/6 0.62-0.77 180-250:1
NYLON 11 0.23-0.31  
NYLON 12 0.23-0.31  
PEEK 0.31-0.62 120-200:1
POLYCARBONATE 0.46-0.77 30-70:1
POLYESTER PBT 0.46-0.7 160-200:1
PPS 0.3-0.45 120-160:1
PET 0.39-0.75 250-400:1
PMMA ACRYLIC 0.31-0.62 120-160:1
POM 0.46-0.77 100-250:1
POLYPROPYLENE - H 0.23-0.39  
POLYSTYRENE 0.15-0.31 150-180:1
PVC 0.31-0.46  
SAN 0.39-0.46 170-200:1

For an ACCURATE clamp force requirement, please complete and submit the below form:


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This calculation is performed by the technical department at Engel UK. You will receive a response within 24 hours.

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  • Absence of tie-bars allows full utilisation of the platen area, so smaller footprint and lower energy consumption than typical
  • ‘Awkward’ core pulling cylinders can be accommodated
  • Ideal for multi-impression tools
  • Superior access for easier and faster tool changes & product de-moulding
  • Servo-hydraulic, hybrid and all-electric ranges available with clamping forces from 280 to 5000 kN

Or speak to one of our team about the benefits of this innovative technology.

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