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TOLERANCES FOR MACHINING PLASTIC ENCLOSURES

Deviations from the nominal dimensions and the subsequent processing of our parts depend on the manufacturing or production processes used. DIN ISO 20457 applies for injection molding.

This international standard replaces the older DIN 16742. It is crucial in ensuring consistent quality. Tolerance group TG 6 applies for our thermoplastics. If the parts are mechanically processed, DIN ISO 2768m always applies.

All dimensions < 1.18"/30 mm to the reference edge of the case have a tolerance of ±0.012"/0.3 mm. All other parts – unless specified – are against DIN ISO 2768m T1. At the same time, the tolerances of the basic parts must be taken into account.

For linear measures, tolerances range from ±0.004"/0.1 mm for nominal dimensions of 0.020"/0.5 mm to 0.236"/6 mm to ±0.020"/0.5 mm for dimensions from 4.724"/120 mm to 15.748"/400 mm. For angular measures, the tolerances range from ±1° (nominal dimensions up to 0.293"/10 mm) to ±0.16° for 4.724"/120 mm to 15.748"/400 mm. Different prices apply, based on the tolerance(s) being specified.

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