High precision Injection Mold Inserts | Nitrided & Mirror Polished | Precision CNC Mold Components

About us

Dongguan MingShang Mould 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 and precision CNC processing services to global clients.

Core Business

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.

Excellent Steel Quality: Strategic Material Partnerships for Superior Mold Performance

To ensure every mold performs flawlessly under the most demanding conditions, our philosophy begins with the foundation: the right material, precision-matched to your application.

Our curated portfolio of high-performance tool steels is selected in partnership with world-renowned mills, providing tailored solutions for the most critical molding environments:

1. Hot-work steel H13 – Elite Thermal Fatigue Performance
   Chosen for extreme thermal cycling applications, this grade excels in high-temperature environments including automotive injection systems and complex multi-cavity molds. 

2. ASSAB Stavax ESR – Surgical-Grade Polishability & Corrosion Resistance
   Ideal for medical, optical, and transparent components, this premium martensitic stainless steel offers unparalleled surface finish quality and resistance to corrosive processing environments. Each batch is supported by mill test certificates and material origin documentation.

3. Böhler Uddeholm M360 Ultra-Wear-Resistant for High-Volume Production
   Engineered for longevity in continuous operation, this steel maintains dimensional precision under high abrasive wear and mechanical stress. It is the material of choice for long-running production tools, core inserts, ejector pins, and high-cavitation molds.

Why Our Material Strategy Gives You a Competitive Edge

Our direct partnerships with steel manufacturers eliminate supply chain uncertainty, providing fully validated material pedigrees and compliance with ISO 13485, IATF 16949, and other industry-specific standards. By selecting application-optimized steels, we don’t just meet specs—we extend tool service life by up to 50%, reduce downtime, and lower your overall cost per part.

Machinery & Equipments

CNC machining center; CNC milling machine ,CNC lathe machine

Sodick EDM and Makino EDM,Sodick Wire-cutting

OD Grinding,ID Grinding,Surface grinding machine

2D CMM, Ziess CMM, height gauge

Our service

1. Customer's request is our purpose and target.
   2. Quick samples delivery service and produce according to your BOM.
   3. Professional production team, strictly quality control department, experienced sales department.
   4. One-stop solution for our long term customers .
   5. Customized size and OEM/ODM service acceptable.
   6. 100% inspect before deliver , quality warranty and long term after-service .
   7. Competitive price ,Excellent service , Quick delivery , Safety payment , Flexible trade terms.

   
   

Why choose us

1.We as a manufacturer are specialized in all kinds of precsion core, cavity, sliders, insert and CNC machining parts.

2.Good experience of 15 years to make Injection parts,Auto parts, metal-working products.

3.Have advanced production equipments and experienced operators.

4.Good experience of OEM and ODM for our customers.

5.Provide best price, good quality and fast delivery.

Quality control

MINGSHANG has strict quality control system from the raw material incoming to finished products outgoing. Our mould parts are guaranteed high precision,high polished and long service life.
Below are our main quality inspection items in the whole production process:
Material incoming: 100% inspection

Rough Finished:100% inspetion
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: the final 100% inspection before the formal shipment

Packaging and shipping

Package
Coated with anticorrosive oil, packed in carton box
Delivery
Delivery time is usually 7-15 working days for type of ejector pin, specific time is according to quantity.
Shipping

We ship using express such as DHL, UPS, FEDEX etc. or according to customer's requirement . It takes about 3-5 days to arrive your front door, and proof of shipments are provided with a shipping or tracking number. And we ship by occean shipment for larger quantity items, it will be economic for customers.