Precision Mold Making Services | CNC Machining for Molds & Dies

We specialize in machining a wide range of mold and die materials including tool steels such as P20, H13, D2, A2, S7, and 420 stainless for corrosion-resistant mold applications. We also machine pre-hardened steels like 4140 and 4340 for mold base plates and support components, aluminum 6061 and 7075 for prototype molds and low-volume production tooling, and copper alloys for electrode machining and cooling channel inserts. All materials are sourced from certified mills with full material certifications for traceability and quality assurance.

Our standard machining tolerance for mold components is ±0.03mm, with the ability to achieve ±0.01mm on critical cavity surfaces and shut-off areas using our DMG MORI 5-axis machining centers. Surface finishes down to Ra 0.8 are achievable for polished cavity surfaces, and we can provide EDM finishing for sharp internal corners and fine detail features. All critical dimensions are verified using LK Group CMM equipment with full dimensional reporting included in the shipment documentation.

Yes. PROFIT regularly machines hardened tool steels up to HRC 62 for production mold cavities, core inserts, and die components. Our CNC equipment is configured for rigid machining of hard materials, utilizing appropriate tooling and optimized cutting parameters to achieve accurate cavity geometry and surface finish directly in the hardened state. This capability eliminates the need for EDM finishing in many applications, reducing lead times and overall tooling cost. We also support soft machining of mold steels for heat treatment followed by final machining operations.

Yes. Every mold project receives a comprehensive Design for Manufacturability (DFM) analysis before production begins. Our engineering team reviews the design for potential machining challenges including deep cavity access, thin wall sections, sharp internal corners, cooling channel placement, and ejection system geometry. We provide actionable recommendations to improve manufacturability, reduce cycle time, and lower overall tooling cost. Our standard DFM turnaround is 24 hours from receipt of your CAD files, ensuring your mold project stays on schedule.

Lead times depend on complexity and material. For prototype mold inserts and simple cavity components from aluminum or pre-hardened steel, typical turnaround is 3 to 5 business days. For production mold cavities and cores from hardened tool steels requiring multiple machining setups and EDM operations, typical lead times are 7 to 15 business days. Complete mold base assemblies with multiple components typically require 15 to 25 business days depending on complexity. We provide accurate lead time estimates during the quoting process based on your specific requirements.

Every mold component shipment includes a Certificate of Compliance (CoC) with dimensional inspection report covering all critical features and cavity dimensions. Additional documentation available upon request: Material Certificates with mill test reports, First Article Inspection (FAI) reports, CMM inspection reports with full dimensional data, surface finish measurement reports for cavity surfaces, and hardness testing certifications for heat-treated components. Our quality team maintains complete batch records for full traceability of every mold component we manufacture.