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Plastic Molding Tolerances Metric Calculator per. ISO DIN 16901

Tolerances, Engineering Design & Limits & Fits

Plastic Molding Tolerances per. ISO DIN 16901

Using Table 1, the number specified refer to the tolerance group calculated in the chart calculator below.

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General tolerances

If the deviations are not specified against the number for the dimension in production documents, order documents, etc. a note must be included referring to this standard, by specifying DIN16901 and the tolerance group given.

Example for specifying tolerance group 140:

Tolerances DIN 16901-140

Deviations specified against dimensions

Example showing division of tolerance 0,8:

Example showing division of tolerance

Table 1 - Correlation of tolerance groups with molding materials

Symbol materials Molding made from Materials in accordance
with ISO DIN
Tolerance Groups
General Tolerances Tolerances on dimensions with
deviations entered against the dimension
Series 1 Series 2
EP Epoxy resin molding materials 130 120 110
EVA Ethylene vinyl acetate copolymer molding materials 16778 Part 1 140 130 120
PF Phenolic plastic molding materials with inorganic fillers Type 11.5, 12, 13, 13.5, 13.9, 15, 16 7708 Part 2 130 120 110
Phenolic plastic molding materials with organic fillers Type 30.5, 31, 31.5, 13.9, 32.51, 51.5, 51.9, 52, 52.9, 71, 74, 75, 83, 84 140 130 120
UF
MF		 Aminoplastic molding materials and aminoplastic/phenolic plastic molding with organic fillers
Type 131, 131.5,150, 152, 152.7, 153, 154, 180, 181, 181.5 		7708 Part 3 140 130 120
Aminoplastic phenolic plastic materials and amino plastic/phenolic plastic molding with inorganic fillers
Type 155, 156, 158 		140 130 120
Aminoplastic molding materials and aminoplastic/phenolic plastic molding with inorganic fillers
Type 157, 182, 183 		140 130 120
UP Polyester resin molding materials Type 801,802,803,804 130 120 110
UP Polyester resin mats type 830, 830.5, 831, 831.5, 832, 832.5, 833, 833.5 140 130 120
ASA Molding materials based on acrylonitrile-styrine acrylester copolymers 130 120 110
ABS Molding materials based on acrylonitrile-butadiene-styrene 16772 Part 1 130 120 110
CA Cellulose acetate molding materials 7742 Part1 140 130 120
CAB Cellulose acetate butyrate molding materials 7742 Part1 140 130 120
CAP Cellulose acetate propionate molding materials 140 130 120
CP Cellulose propionate molding materials 140 130 120
PA Polyamide molding materials (amorphous.with or without fillers) 130 120 110
PA 6 Polyamide 6 molding material1) (without filler) 140 130 120
PA 66 PoIyamide 66 molding materials1) (without filler) 140 130 120
PA 610 Polyamide 610 molding materials1) (without filler) 140 130 120
PA 11 Polvamide 11 molding materials1) (without filler) 140 130 120
PA 12 Polyamida 12 molding materials1) (without filler) 140 130 120
- Glass fibre reinforced polyamlde 6, 66, 610, 11and 12 molding materials1 130 120 110
PB Poly butylene molding materials 160 150 140
PBTP Polybutylene terephthalate molding materials Without filler 140 130 120
Polybutylene terephthalate molding materials With filler 130 120 110
PC Polycarbonlte molding materials (without filler,with filler) 1744 Part 1 130 120 110
PDAP Polydiallylphthalate molding materials(with inorganic filler) 130 120 110
PE Polyethylenemoulding materials1) (without filler) 16776 Part 1 150 140 130
PESU PoIyethersulphonemoulding materials (without filler) 130 120
 110
PSU PoIysulphonemoulding materials (with filler,without filler) 130 120 110
PETP PoIyethyleneterephthllate molding materials (amorphous) 130 120 110
PoIyethyleneterephthalate molding materials (crystalline) 140 130 120
Polyethyleneterephthllate molding materials (with filler) 130 120 110
PMMA PoIymethyl methacrylate molding materials 7745 Part 1 130 120 110
POM PoIyoxymethylene (polyacetal) molding materials1) (without filler), length of moldings: < 150mm 140 130 120
Polyoxymethylene (polyacetal) molding materials1) (without filler). 150 140 130
length of moldings: 150mm		 150 140 130
Polyoxymethylene (polyacetal) molding materials1) (with filer) 130 120 130
PP Polypropylene molding materials1) (without filler) 16774 Part 1 150 140 130
Polypropylene molding materials1) (glass fibre reinforced, reinforced with talcum or asbestos fibre) 140 130 120
PP/EPDM Mixture of polypropylene and rubber (without filler) 140 130 120
PPO Polyphenyleneoxide molding materials 130 120 110
PPS Polyphenylenesulphide molding materials (with filler) 130 120 110
PS Polystynllle molding materials 7741 Part 1 130 120 110
PVC-U Unplasticized polyinyl chloride molding materials 7748 Part 1 130 120 110
PVC-P Plasticized polyinyl chloride molding materials 7749 Part 1 No data available at present
SAN Styrene acrylonitrile molding materials (with finer, without filler) 16775 Part 1 130 120 110
SB Styrene butadiene molding materials 16771 Part 1 130 120 110
Mixtures of polyphony and polystyrene (with and without filler) 130 120 110
Fluorinated polyethylene-polypropylene molding materials 150 140 130
- Thermoplastic polyurethane, Products with 70 to 90 Shore A2) 150 140 130
- Thermoplastic polyurethane, Products with over 50 Shore D2) 140 130 120

Notes

1 In the case of unreinforced partly crystalline, non-hardening molding materials (thermoplastics the next highest tolerance group shall apply for wall thick nesses over 4 mm.

2 The word "moulding" was replaced with "molding" (US word) for internet searchability optimization.

Source

Plastic Moldings Tolerances and Acceptance conditions for linear dimensions per. DIN 16901

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