Parts design seems not mold maker's job. We take it is.

A good parts design leads to quality mold with cost effective price. It is easy to be manufactured with few fancy structure, but function good.

Within many years in this business, we saw all different parts designed by world-wide talented mechanical engineer. Maybe we would know one or two things that you don't know.

Please don't hesitate to contact us!

  • parts release from mold
  • solve parts shrinkage problem in mold
  • fitment between stamping and plastic parts
  • mold release
  • shrinkage
  • fitment

Before mold building, details are communicated with customers. Three aspects are covered.

1.) Injection molding machine related: mold overall size; location ring; sprue bush; ejection connector tap size with machine

2.) Parts related: gate; parting line; ejection

3.) Mold related: waterline layout and nipple size; cavity layout; runner layout and weight; Mold steel type and hardness

  • mold briefs
  • gate and ejection
  • waterline
  • runner
  • mold briefs
  • gate and ejection
  • waterline
  • runner
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Moldflow can be a good reference of some aspect that can't be decided by experience.

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Find possible defects and improve design before mold manufacture.

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Visual communication with customer to discuss possible problem in advance.

  • mold runner balance
  • welding line
  • shrinkage mark expectation
  • runner balance
  • welding line
  • shrinkage mark
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Injection molding machine setting datasheet is submitted with samples.

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Sampling only when mold temperature is stablized.

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15 minutes video recording during mold test after parts comes out stable.

mold test report