Iso 20457 Tg5 | [extra Quality]

: Extreme precision (expensive and difficult to maintain). TG4 : High precision (e.g., gears or precision wheels).

refers to a specific "Tolerance Group" (TG) within the international standard for plastic molded parts. Specifically, TG5 is the baseline standard precision grade used for general-purpose industrial applications, such as housing parts and enclosures. What is ISO 20457? Iso 20457 Tg5

Using balances cost and quality. Tighter groups (TG1–TG4) significantly increase tooling costs and scrap rates because they require narrower process windows. TG5 provides sufficient accuracy for: Consumer electronics housings. Automotive interior trim. Medical device enclosures. Summary Table: ISO 20457 Tolerance Hierarchy Accuracy Level Typical Application Extreme Precision Optical components, micro-fluidics High Precision Gears, functional mechanical parts TG5 Standard Precision Industrial housings, technical components Packaging, disposable goods : Extreme precision (expensive and difficult to maintain)

The standard categorizes production accuracy into nine Tolerance Groups (TG1 to TG9): Specifically, TG5 is the baseline standard precision grade