Tailored Non-Standard Mold Inserts With 0.005 Tolerance For Injection Molds
Dongguan SENLAN Mold Parts Co., Ltd. was established in 2006 and specializes in precision machining of mold components, particularly for non-standard customization in precision packaging molds. With years of industry experience and technical expertise, we provide efficient and professional mold parts processing services to global clients.

Core Business Expertise
We focus on precision machining of multi-cavity mold components, including plastic mold cavities, core pins, inserts, movable core assemblies, and automotive die-casting mold cores and inserts. Our products are primarily used in precision packaging molds for industries such as daily-use packaging, cosmetics packaging, medical consumables and packaging, as well as automotive, electronics, and automation.

Premium Tool Steel Materials
We strategically source tool steel exclusively from global leaders like Uddeholm, Hitachi, and Bohler to ensure superior quality and performance.
H13 Hot-Work Steel
Bohler Uddeholm® material with exceptional thermal fatigue resistance, perfect for high-temperature injection molding applications like automotive molds and complex cavity inserts. Full traceability with every batch.
Stavax® ESR (420 Stainless Tool Steel)
Sourced directly from ASSAB® with mill test reports. Superior corrosion resistance and mirror finish capability, ideal for surgical instrument molds and transparent plastic components.
M340 High-Hardness Steel
Premium-grade steel from leading European suppliers offering extreme wear resistance and precision maintenance under heavy-load cycles, perfect for high-volume production molds, thread cores, and ejector pins.
Material Advantages: Direct sourcing from BOHLER and ASSAB with original certifications. Full traceability at batch level ensuring compliance with medical and automotive standards (ISO 13485 and IATF 16949). Extended mold lifespan by 30-50% compared to generic alternatives.

Advanced Machining Process
Roders CNC Machining
5-axis CNC machines achieving tolerances of ±0.005mm, forming complex surfaces in single operations for precision and efficiency.
Makino EDM
Precise electrode discharge technology for intricate structures like deep slots and narrow gaps, providing high accuracy while preserving tool life.
Sodick Wire EDM
Ultra-smooth finishes with minimal surface roughness, perfect for optical components and high-precision molds.
Hardinge CNC Turning
Reliable precision and performance for wide range of turning operations with consistent quality and high productivity.
Grinding and Polishing
Mirror-like surface finishes (Ra ≤ 0.1μm) reducing demolding resistance and improving production efficiency.
Heat Treatment
Vacuum quenching and nitriding combination ensuring no oxidation or deformation while increasing surface hardness and wear resistance.

Rigorous Quality Control
CMM Inspection
Zeiss Coordinate Measuring Machine for full-dimension scanning to verify CAD drawing compliance.
Optical Projector
Quick and precise measurements of tiny holes and thread accuracy.
Hardness Testing
Rockwell and Vickers hardness testers to verify heat treatment effectiveness.
Cylindricity Instrument
Ensuring perfect cylindrical shapes meeting highest standards.
Quality Inspection Process
| Production Stage | Inspection Frequency |
|---|
| Material Incoming | 100% Inspection |
| Rough Finished | 100% Inspection |
| Heat Treatment | Random Inspection |
| Face Grinding | 100% Inspection |
| Center-less Cylindrical Grinding | 100% Inspection |
| OD/ID Grinding | 100% Inspection |
| EDM | 100% Inspection |
| Wire-Cutting | 100% Inspection |
| Packing | 100% Final Inspection |

Industry Applications
Our precision mold parts serve diverse industries including precision packaging, cosmetics, medical consumables, automotive components, electronics, and automation systems.

Why Choose Senlan Mold Parts
High-Precision Manufacturing
Expertise in creating molds and components with tight tolerances for various industries.
Fast and Reliable Service
Quick response and rapid production with 24-hour quotation guarantee.
Comprehensive Solutions
Full range of services from mold design to production and maintenance.
Experienced Team
Engineers and technicians with years of experience ensuring high-quality results.
Flexible Production
Capable of handling both large-scale and urgent orders without compromising quality.
Need Custom Precision Mold Parts? Get a Free Quote Today!
24 hours response
20 years industry experience
100% quality guarantee