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MCHEN Machine Parts - Precision Casting & Marine Hardware Manufacturer

Investment Casting and CNC Machining Services

Investment casting, lost-wax casting, CNC machining, polishing and OEM manufacturing support from drawing review through inspection and delivery.

Investment Casting and OEM Manufacturing Services

Send us your drawings or samples. Our engineering team provides DFM analysis, prototyping, and full production support. We handle everything from concept to container-load delivery — one contact person from start to finish.

1. Drawing Review & DFM
We review your design and provide manufacturing feasibility feedback within 24 hours.
2. Quotation & Tooling
Detailed quotation with tooling cost, unit price, and lead time.
3. Sample Production
First article samples for your approval before mass production.
4. Mass Production & QC
Full production with in-process inspection and final QC.
5. Packaging & Shipping
OEM packaging, export carton, and global shipping arrangement.
MCHEN OEM Manufacturing
Investment Casting Process

Investment Casting

Precision lost-wax casting for complex stainless steel and alloy components. Our casting process delivers tight tolerances, smooth surface finish, and repeatable quality across production batches.

Materials
SS304, SS316/316L, carbon steel, alloy steel, brass, aluminum
Tolerance
CT5-CT7 per ISO 8062
Weight Range
0.01kg to 50kg per piece
Surface
Ra 3.2-6.3μm as-cast

CNC Machining & Finishing

Secondary CNC machining to achieve tight tolerances on critical dimensions. Thread cutting, drilling, milling, and turning on casting parts.

CNC Turning
Precision turning for cylindrical parts, threads, and bores.
CNC Milling
Complex surface machining, pockets, and precision features.
Thread Cutting
BSP, NPT, and metric threads to standard specifications.

Surface Treatment

Multiple finishing options to meet your application and aesthetic requirements.

Mirror Polish
Ra 0.4μm for decorative and marine applications.
Satin Finish
Brushed texture for industrial and architectural use.
Passivation
Chemical treatment to enhance corrosion resistance.
Electropolish
Electrochemical polishing for ultra-smooth, clean surfaces.

Quality Control & Certifications

Every batch goes through a complete inspection process. We provide material certificates, dimensional reports, and test results with each shipment.

Material Testing
Spectrometer analysis to verify material composition meets standards.
Dimensional Inspection
CMM and manual inspection per drawing tolerances.
Salt Spray Test
500+ hour salt spray test for marine-grade products.
Pressure Test
Hydrostatic pressure testing for valves and couplings.
Surface Inspection
Visual and roughness testing to finish specifications.
Certificates
CE, ISO 9001, TUV NORD, IQNet, CQM certified facility.
Manufacturing proof

Production Steps Buyers Can Verify

Selected factory updates show how MCHEN controls wax patterns, shell making, stainless pouring, finishing and inspection before shipment.

View Factory Updates

Stainless Casting Supplier Checklist

For OEM buyers comparing suppliers, this guide explains what to confirm before quoting stainless steel investment castings: material, tooling, machining, surface finish, inspection and packing.

Read Casting Supplier Checklist →
Stainless investment casting supplier checklist

Have a Custom Project?

Send us your drawing — we respond with DFM feedback and quote within 24 hours.

Get a Custom Quote →