Star Plast Engineering
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19/05/2026
๐๐จ๐ฅ๐๐ซ๐๐ง๐๐๐ฌ ๐๐ซ๐ ๐ง๐จ๐ญ ๐ฌ๐ฎ๐ ๐ ๐๐ฌ๐ญ๐ข๐จ๐ง๐ฌ, ๐๐ฌ๐ฉ๐๐๐ข๐๐ฅ๐ฅ๐ฒ ๐ข๐ง ๐ฉ๐ฅ๐๐ฌ๐ญ๐ข๐ ๐ข๐ง๐ฃ๐๐๐ญ๐ข๐จ๐ง ๐ฉ๐ซ๐จ๐ฃ๐๐๐ญ๐ฌ where every tolerance written on a drawing becomes a production commitment.
It becomes something the supplier must achieve.
โผ๏ธSomething quality must control.
โผ๏ธSomething metrology must measure.
โผ๏ธAnd something procurement ultimately buys.
๐๐ก๐๐ญ ๐ข๐ฌ ๐ฐ๐ก๐ฒ ๐ญ๐จ๐ฅ๐๐ซ๐๐ง๐๐๐ฌ ๐ฆ๐ฎ๐ฌ๐ญ ๐๐ ๐ฏ๐๐ฅ๐ข๐๐๐ญ๐๐ ๐๐๐๐จ๐ซ๐ ๐ฉ๐ซ๐จ๐๐ฎ๐๐ญ๐ข๐จ๐ง, ๐ง๐จ๐ญ ๐ช๐ฎ๐๐ฌ๐ญ๐ข๐จ๐ง๐๐ ๐๐๐ญ๐๐ซ ๐๐๐.
Tight tolerances can look normal on a drawing, but in production, they can increase: ๐ญ๐จ๐จ๐ฅ๐ข๐ง๐ ๐๐จ๐ฆ๐ฉ๐ฅ๐๐ฑ๐ข๐ญ๐ฒ, ๐ฌ๐๐ซ๐๐ฉ ๐ซ๐๐ญ๐, ๐ฆ๐๐๐ฌ๐ฎ๐ซ๐๐ฆ๐๐ง๐ญ ๐๐จ๐ฌ๐ญ, ๐๐ฒ๐๐ฅ๐ ๐ญ๐ข๐ฆ๐ ๐ฉ๐ซ๐๐ฌ๐ฌ๐ฎ๐ซ๐, ๐๐ง๐ ๐ฉ๐ซ๐จ๐๐๐ฌ๐ฌ ๐ข๐ง๐ฌ๐ญ๐๐๐ข๐ฅ๐ข๐ญ๐ฒ.
In the end: ๐๐๐๐.
๐๐จ๐ฆ๐ ๐ญ๐จ๐ฅ๐๐ซ๐๐ง๐๐๐ฌ ๐๐ซ๐ ๐๐ซ๐ข๐ญ๐ข๐๐๐ฅ because they influence function while ๐ฌ๐จ๐ฆ๐ ๐ญ๐จ๐ฅ๐๐ซ๐๐ง๐๐๐ฌ ๐๐๐ ๐๐จ๐ฆ๐ฉ๐ฅ๐๐ฑ๐ข๐ญ๐ฒ ๐ฐ๐ข๐ญ๐ก๐จ๐ฎ๐ญ ๐๐ซ๐๐๐ญ๐ข๐ง๐ ๐ซ๐๐๐ฅ ๐๐ฎ๐ง๐๐ญ๐ข๐จ๐ง๐๐ฅ ๐ฏ๐๐ฅ๐ฎ๐.
The experienced team of will bring clarity to the complexity of material behavior, shrinkage, warpage, geometry, tooling concept, measurement method, and process capability.
For you, ๐๐ฌ ๐ ๐ฉ๐ซ๐จ๐๐ฎ๐ซ๐๐ฆ๐๐ง๐ญ ๐ฆ๐๐ง๐๐ ๐๐ซ, this is a great indicator in the phase of supplier selection.
If tolerances are not validated during RFQ and DFM, the quotations are not fully comparable.
๐๐๐ญ๐ ๐ญ๐จ๐ฅ๐๐ซ๐๐ง๐๐ ๐ข๐ฌ๐ฌ๐ฎ๐๐ฌ ๐๐ซ๐ ๐๐ฑ๐ฉ๐๐ง๐ฌ๐ข๐ฏ๐ because they usually appear when the project is already under pressure and at that stage, the discussion is no longer only technical.
๐๐ญ ๐๐๐๐จ๐ฆ๐๐ฌ ๐๐จ๐ฆ๐ฆ๐๐ซ๐๐ข๐๐ฅ, ๐๐จ๐ง๐ญ๐ซ๐๐๐ญ๐ฎ๐๐ฅ, ๐๐ง๐ ๐จ๐ฉ๐๐ซ๐๐ญ๐ข๐จ๐ง๐๐ฅ.
At , we believe tolerance validation is part of project risk management. Because in industrial projects, a tolerance is not just a number on a drawing.
๐๐ญ ๐ข๐ฌ ๐ ๐๐จ๐ฆ๐ฆ๐ข๐ญ๐ฆ๐๐ง๐ญ ๐ญ๐จ ๐ซ๐๐ฉ๐๐๐ญ๐๐๐ข๐ฅ๐ข๐ญ๐ฒ ๐๐ง๐ ๐ฌ๐๐๐ฅ๐๐๐ข๐ฅ๐ข๐ญ๐ฒ.
Everyone says: โ๐๐ ๐๐ซ๐ ๐ ๐ฌ๐ญ๐๐๐ฅ๐ ๐ฌ๐ฎ๐ฉ๐ฉ๐ฅ๐ข๐๐ซ.โ But stability does not mean a few simple words. ๐๐ญ๐๐๐ข๐ฅ๐ข๐ญ๐ฒ ๐ซ๐๐ฉ๐ซ๐๐ฌ๐๐ง๐ญ๐ฌ ๐ ๐ฌ๐๐ญ ๐จ๐ ๐๐ข๐ ๐ฎ๐ซ๐๐ฌ, ๐๐จ๐ฆ๐ฆ๐ฎ๐ง๐ข๐๐๐ญ๐๐ ๐ญ๐ซ๐๐ง๐ฌ๐ฉ๐๐ซ๐๐ง๐ญ๐ฅ๐ฒ ๐๐๐ญ๐ฐ๐๐๐ง ๐ฉ๐๐ซ๐ญ๐ง๐๐ซ๐ฌ.
๐ ๐ฉ๐ซ๐๐๐ข๐๐ญ๐๐๐ฅ๐ ๐ฉ๐ซ๐จ๐๐๐ฌ๐ฌ ๐ฅ๐จ๐จ๐ค๐ฌ ๐ฅ๐ข๐ค๐ ๐ญ๐ก๐ข๐ฌ:
โ controlled PPM, not estimated
โ Cpk > 1.33 on critical characteristics
โ scrap rate constantly monitored
โ stable OEE, not occasional
โ on-time deliveries, not โalmost in-timeโ
๐๐ข๐ญ๐ก๐จ๐ฎ๐ญ ๐ญ๐ก๐๐ฌ๐ ๐๐๐ง๐๐ก๐ฆ๐๐ซ๐ค๐ฌ, ๐ญ๐ก๐ ๐๐ข๐ฌ๐๐ฎ๐ฌ๐ฌ๐ข๐จ๐ง ๐๐๐จ๐ฎ๐ญ ๐ช๐ฎ๐๐ฅ๐ข๐ญ๐ฒ ๐ข๐ฌ ๐ข๐ง๐๐จ๐ฆ๐ฉ๐ฅ๐๐ญ๐ and will not solve any problem. You cannot influence what you do not understand. And the fact that ๐ฒ๐จ๐ฎ๐ซ ๐ฉ๐๐ซ๐ญ๐ง๐๐ซ ๐๐จ๐ง๐ฌ๐ญ๐๐ง๐ญ๐ฅ๐ฒ ๐ญ๐ซ๐๐๐ค๐ฌ these indicators means for you:
๐น fewer surprises
๐น fewer emergency reactions
๐น more long-term control
This is a standard โmodus operandiโ that provides.
๐ ๐ฌ๐ฎ๐ฉ๐ฉ๐ฅ๐ข๐๐ซ๐ฌ. ๐ ๐ฉ๐ซ๐ข๐๐๐ฌ ๐๐ง๐ ๐จ๐ง๐ ๐๐๐๐ข๐ฌ๐ข๐จ๐ง.
In reality, the comparison starts wrong because you are not only comparing suppliers, but different technical assumptions.
๐๐ง๐ ๐ฌ๐ฎ๐ฉ๐ฉ๐ฅ๐ข๐๐ซ ๐๐๐ฅ๐๐ฎ๐ฅ๐๐ญ๐๐ฌ ๐๐๐ฌ๐๐ ๐จ๐ง:
โ standard PP material
โ estimated cycle time of 28 seconds
โ 2-cavity mold
๐๐ก๐ ๐ฌ๐๐๐จ๐ง๐ ๐ฌ๐ฎ๐ฉ๐ฉ๐ฅ๐ข๐๐ซ ๐๐จ๐ฆ๐๐ฌ ๐ฐ๐ข๐ญ๐ก:
โ PA6 GF30 for higher rigidity
โ cycle time of 34 seconds
โ the same 2-cavity configuration
๐๐ก๐ ๐ญ๐ก๐ข๐ซ๐ ๐ฉ๐ซ๐จ๐ฉ๐จ๐ฌ๐๐ฌ:
โ modified PP for better processability
โ 4-cavity mold
โ optimized cycle time of 26 seconds
But the differences do not stop here.
๐๐ก๐๐ญ ๐ข๐ฌ ๐ง๐จ๐ญ ๐ฏ๐ข๐ฌ๐ข๐๐ฅ๐ ๐ข๐ง ๐ญ๐ก๐ ๐ข๐ง๐ข๐ญ๐ข๐๐ฅ ๐จ๐๐๐๐ซ ๐ข๐ฌ:
โ mold cooling strategy
โ gate position and type
โ shrinkage estimation
โ dimensional stability over time
But they become visible later. They show up in ๐๐๐ฏ๐ข๐๐ญ๐ข๐จ๐ง๐ฌ, ๐ซ๐๐ฐ๐จ๐ซ๐ค, ๐๐ง๐ ๐๐๐ฅ๐๐ฒ๐ฌ.
Which translates very simply, for anyone in procurement, into hidden risk.
A trusted partner like helps you to:
๐น Eliminate variation.
๐น Clarify assumptions.
๐น Force technical alignment.
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