Products · Injection mold

Multi-insert cavity mold

Modular cavity inserts in a common frame — engineered so revisions and maintenance touch one insert, not the whole tool.

  • Made in-house in Dongguan, China
  • Mold work to ±0.01 mm
  • 30 presses 20T–300T on site

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Multi-insert injection mold with several rectangular cavity inserts in a machined frame
Photographed in our plant in Humen, Dongguan

Modular construction is a maintenance strategy. Cavity-forming detail is built as separate inserts fitted into a machined and ground frame, so a design revision, a polish touch-up or a worn corner is handled by remaking one insert while the rest of the tool stays in production.

It also makes a tool transferable: the frame, the standard components and the documented insert geometry can be maintained by your own molder, with spare inserts shipped alongside the mold. All inserts are machined and fitted in-house at ±0.01 mm and measured on the CMM before assembly.

Typical applications

  • Parts likely to be revised
  • Long-life production tools
  • Multiple part variants from one frame
  • Export tooling with spare inserts

Specification

What this class of tool is built to

Our standard specification for this type of tooling, confirmed line by line on the mold design approval sheet before machining starts.

Standard tooling specification — confirmed on the mold design approval sheet
Mold constructionTwo-plate, three-plate, hot runner, stack or family — specified per part
Cavity countSingle or multi-cavity, sized to annual volume, cycle time and press tonnage
Mold steelsP20, 718H, NAK80, S136, hardened H13 / SKD61 cores
Mold work tolerance±0.01 mm
Machine accuracyDown to 0.001 mm (Yasoda, OKUMA, GF, Makino)
RunnerCold runner, hot runner or valve gate
Surface finishSPI A1–D3, bead blast, leather grain or your texture
CoolingMachined circuits; baffles or bubblers where geometry requires
EjectionPins, sleeves, stripper plate, lifters, unscrewing or collapsible core
VerificationSwiss Hexagon CMM and Zeiss Contura; dimensional report at T1
Molding30 presses from 20T to 300T, in the same building
Documentation2D/3D drawings, steel and component certificates, parameter sheet, spare parts
Lead timeTypically 15–30 days of machining after design approval
Tool ownershipYours — the tool is designed to be transferable

Values above are our standard capability for this class of tool, not fixed figures for a specific project. Cavity count, steel grade, runner type and finish are agreed with you on the design approval sheet before any steel is cut.

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Next step

Ask for a DFM review and a price for your part

STEP/IGES/X_T files, the resin, your annual volume and target market are enough to get a mold price, a cycle estimate and the risks we can see — usually in 1–2 business days.