JST Mould

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JST Mould Custom Injection molding, 2K mold, Prototyping, Machining, gas-assisted mold, overmolding.

Main service:
high-quality plastic mold design and making

Other service:
1.new product design and improvement
2.prototype sample making
3.prototype mold making
4.injection molding

Value-Added service:
be good at providing fully optimized solution from product design, mold making to
mass quantity production

Automotive bezel parts may look simple, but their appearance surfaces leave very little room for tooling mistakes.Partin...
18/10/2026

Automotive bezel parts may look simple, but their appearance surfaces leave very little room for tooling mistakes.

Parting lines, gate location, weld lines, dimensional stability and surface quality all need to be considered before steel cutting.

These are some of the tooling considerations behind an automotive fog lamp bezel project.

2K overmolding is not only about molding two materials together.For EV charging handle components, sealing, material bon...
14/10/2026

2K overmolding is not only about molding two materials together.

For EV charging handle components, sealing, material bonding, flash control, parting line design and dimensional stability all need to be considered from the tooling stage.

Good product appearance is only one part of the challenge — stable mass production is the real target.

13/10/2026

Precision finishing after heat treatment.

Machining hardened mold steel requires more than simply reaching the final dimension.

Tool stability, cutting strategy, surface finish and dimensional control all affect the accuracy of the finished mold insert.

A short look at one of our mold machining processes at JST Mould.

For urgent tooling projects, delivery speed is not only about machining faster.The real challenge is coordinating design...
05/10/2026

For urgent tooling projects, delivery speed is not only about machining faster.

The real challenge is coordinating design confirmation, mold manufacturing, trial, correction, inspection and logistics without losing control of quality.

In this project, air freight was used to shorten the final delivery stage after tooling and validation were completed.

Thin-wall injection molding leaves very little room for process instability.Flow length, gate design, venting, mold rigi...
04/10/2026

Thin-wall injection molding leaves very little room for process instability.

Flow length, gate design, venting, mold rigidity, cooling and injection speed all interact — and a small weakness in one area can quickly become a filling or dimensional problem.

For difficult thin-wall parts, the tooling strategy needs to be considered early, before the mold is cut.

A sink mark on the surface and an internal void may come from the same basic issue: uneven cooling and insufficient pack...
30/09/2026

A sink mark on the surface and an internal void may come from the same basic issue: uneven cooling and insufficient packing in a thick section.

But the correct fix depends on where the material is shrinking and how pressure is transmitted during packing.

Before changing process parameters, we normally review wall thickness, rib/boss geometry, gate position and local cooling conditions.

Mold steel selection should match the real production requirement — not simply the highest grade available.Tool life, pa...
28/09/2026

Mold steel selection should match the real production requirement — not simply the highest grade available.

Tool life, part geometry, surface requirement, polishing, corrosion risk and expected production volume all influence the decision.

For many projects, the right balance between steel grade, heat treatment and machining strategy matters more than choosing the most expensive material.

Happy Mid-Autumn Festival from JST Mould.Wishing our customers, partners and friends around the world a joyful festival,...
24/09/2026

Happy Mid-Autumn Festival from JST Mould.

Wishing our customers, partners and friends around the world a joyful festival, good health and continued success.

Thank you for your trust and support.

24/09/2026

High-speed finish machining of a precision mold insert.

Stable tooling accuracy starts with stable machining.

When space is limited or undercut geometry becomes complex, a conventional slider is not always the most practical solut...
23/09/2026

When space is limited or undercut geometry becomes complex, a conventional slider is not always the most practical solution.

A half-slider / half-mold structure can make the mechanism more compact, but shut-off reliability, guiding, locking, wear and slider travel must be considered together.

These images show several key design points from a half-slider mold structure.

A compact mechanism only adds value when it remains stable and repeatable in production.

Address

Gongming Street, Guangming District
Shenzhen
518106

Telephone

86-755-3315 2951

Website

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