D-top Mould machines individual mold components and inserts to your drawings and specifications. Whether you need a single replacement cavity, a set of sliders, or a full set of mold inserts machined from your 3D data, we supply precision parts that drop into your existing tooling.
We support overseas mold makers, tooling companies and injection molding shops that need reliable China outsourcing for mold cores, cavities and wearing parts — without ordering a complete mold.
What We Machine
- Mold cavity and core — single or matched sets, machined to your 3D model
- Sliders, angle lifters and slide inserts — including inclined and hydraulic slide units
- Mold inserts — round, square, contoured and threaded inserts
- Ejector pins, sleeves and ejector plates
- Sprue bushings, locating rings and leader pins
- Wear plates and stripper plates
- Parts machined from your complete 3D mold data set
Materials We Work With
| Material | Typical use | Hardness after treatment |
|---|---|---|
| P20 | General-purpose cores and cavities | 28-32 HRC |
| H13 | High-heat, long-run tooling | 44-52 HRC |
| S136 / 420 Stainless | Corrosive resins, medical, optical | 48-52 HRC |
| NAK80 | Mirror-polish, optical and cosmetic parts | 37-43 HRC |
We also machine customer-specified grades and can source certified steel with mill test report on request.
What You Need to Provide
- 2D or 3D part/mold data — STEP, IGES, DWG, DXF or PDF with dimensions
- Material specification — or tell us the application and we recommend a grade
- Order quantity and target delivery date
- Critical dimensions and tolerances — call out the features that matter most
- Surface finish and heat-treatment requirements
Manufacturing Process
- RFQ review — we check your data and confirm feasibility within 1 business day
- DFM feedback — we flag tolerance or structure risks before cutting metal
- CNC machining — milling, turning, EDM and wire cutting
- Heat treatment — when hardness or wear resistance is required
- Surface finishing — polishing, texturing or coating as specified
- CMM inspection — full dimensional report
- Packaging and delivery — anti-rust wrap and export carton
Quality Control
- CMM dimensional inspection report with every order
- Material certificate and heat-treatment record on request
- Hardness testing for treated components
- Surface finish verified against your specified standard
Frequently Asked Questions
Can you machine only a cavity or core from my 3D data?
Yes. Send the single component model and we machine it to your dimensions, including fitting features for your existing mold base.
What tolerance can you hold?
Standard machining tolerance is ±0.01 mm on key features; tighter tolerance is available on request and confirmed during DFM review.
Do you supply the mold base as well?
Only if you ask. Many customers send us just the core components; for a complete tool without a base, see our injection mold manufacturing service.
How do you handle small batches?
Low-volume and single-piece orders are accepted. Pricing scales with quantity, so send your expected order size for an accurate quote.
Request a Quotation
Send your 2D or 3D drawings for a mold components quotation. Upload your file and tell us the material, quantity and tolerance — we reply with engineering feedback and a price.