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:

Product details

Basic product dimensions (mm)
X X

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Tool/mould details

Tool/mould dimensions if known (mm)
X X

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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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Click to view ESTIMATED clamp force requirements by material (tonnes/sq.cm)