Pekago and other major manufacturers often list as their standard for high-quality injection molding. It provides a balance between functional accuracy and production cost. Key characteristics of TG5 include:
: Dimensions formed by a single part of the mold (e.g., within one cavity half). These typically have tighter tolerances. din 16742 - tg5
Understanding DIN 16742 - TG5: The Standard for Plastic Precision Pekago and other major manufacturers often list as
Are you looking to apply these tolerances to a or a particular manufacturing process like injection moulding? Vacuum Casting | FACTUREE – The Online Manufacturer These typically have tighter tolerances
⚠️ These are general linear tolerances. For functional features (e.g., fits with metal parts), tighter TG3 or TG4 is recommended.
A part with a single edge gate will have shrinkage variation along the flow path. Under TG5, you must simulate this (Moldex3D, Cadmould) and adjust the nominal dimension asymmetrically (e.g., +0.10 mm / -0.18 mm instead of ±0.14 mm).
You do not need TG5 on a cosmetic snap-dome button. Apply TG5 only to critical features (bearing diameters, mating bosses, gear centers). Use TG4 for all other dimensions.