Din 16742 - Tg5 !!install!! Jun 2026

Single-cavity molds achieve TG5 much easier than high-cavity family molds due to balanced thermal profiles and pressure distribution.

The move from DIN 16901 to DIN 16742, and from TG5 as a simple table look‑up to TG5 as the outcome of a structured, multi‑factor decision process, represents real progress in tolerance engineering for polymers. Understanding TG5 is not merely a matter of quoting numbers from a table; it is about understanding the interplay of material, process, geometry, and quality cost. For engineers working with plastic moulded parts, a solid grasp of DIN 16742 — and of TG5 in particular — is an essential tool in the practical design toolbox.

Achieving TG5 requires specialized tooling engineering, stable processing conditions, and high-quality resin selection. Factors Influencing DIN 16742 TG5 Tolerances

: Engineers are encouraged to design parts at the nominal value, which is in the middle of the tolerance field, to ensure optimal fit and performance. din 16742 - tg5

TG5 is widely used in conventional injection moulding and is often considered the for this process. It is also applied in other moulding processes such as:

: Standard precision injection molding . It balances tight dimensional control against processing economics for commercial engineering plastics.

When a drawing uses DIN 16742 general tolerances, the required tolerance group must be stated clearly in the title block or a dedicated general tolerance note. The conventional notation is: Single-cavity molds achieve TG5 much easier than high-cavity

The actual tolerance value derived from the TG5 designation is not a single number but depends on:

(linear mm) FORM & POSITION: DIN 16742 TG5 SURFACE: V2

Design Guide Injection Moulding - Pekago Covering Technology For engineers working with plastic moulded parts, a

: Features formed within a single moving or static cavity piece of the mold. These maintain tighter accuracy because the steel geometry does not shift during the molding cycle.

: While TG5 is the standard for injection molding, other grades like TG7 are used for specialized processes such as Structural Foam Moulding (SFM).