Engineering insights
Guides, data and case studies from our tooling engineers
Practical articles on stamping dies, injection molds, tooling spare parts and sourcing from China, written by the engineers who design and build them in Dongguan.
99 articles8 case studiesUpdated Oct 14, 2026
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Conformal Cooling in Injection Molding
In the world of Conformal Cooling Injection Molding, how a mold gets cooled is just as critical as how it is designed.
Why Injection Molds Fail: Cracking & Galling Fixes
The most common injection mold failure modes, cracking, galling and erosion, what causes each, and the steel, coating and cooling fixes that stop them.
Sourcing Interchangeable Cores & Punches for Tooling
In modern manufacturing, interchangeable cores and punches for tooling are sort of the backbone of high-volume stamping and molding operations.
Stamping DFM: Optimizing Strip Layouts for Less Scrap
How strip layout decisions, nesting, carrier design and pitch change material utilisation and scrap rate in progressive die stamping.
Cheap China Molds: Where Shops Cut Corners
With a global plastic molding market size valued at roughly 385 billion USD in 2023, 40-45% of the global injection mold exports originate from China.
Over-molding vs. Insert Molding: Preventing Delamination
Why over-molded and insert-molded parts delaminate, and how substrate prep, bond chemistry, gate position and mold temperature prevent bond failure.
Holding ±0.001 mm: Thermal Control in Precision CNC
In a 300u202fmm workpiece that would be 7u202fm of size error on a 2u00b0C swing u2013 nearly 7x the allowable tolerance.
Progressive vs. Transfer Dies: Tonnage & Wear Realities
Progressive versus transfer dies compared on press tonnage, part geometry limits, wear behaviour and cost per part for high-volume stamped components.
Auditing China Mold Shops: An Engineer’s Checklist
An engineer's checklist for auditing a Chinese mold shop: equipment, metrology, process control, documentation and the red flags worth walking away from.
How to Request Accurate Quotes: Buyer Data Checklist
The data a toolmaker needs for an accurate quote: 3D files, tolerances, material, annual volume, surface finish and inspection requirements.
Mold & Die Lead Times in China: Real Production Data
For precision manufacturing, Mold & Die Lead Time is the amount of time taken to design, test and deliver a tool that is ready for production.
Chinese Mold Makers Vs Local: Price & Quality Data
Chinese versus local mold makers compared on tooling price, lead time, quality systems and total landed cost, with the trade-offs for each sourcing route.
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