One‑Stop Metal Manufacturing – Casting, Forging, CNC Machining & Finishing Under One Roof

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One‑Stop Metal Manufacturing: From Raw Material to Finished Product

June 29, 2026

Managing multiple suppliers for casting, machining, finishing, and assembly creates coordination challenges, quality risks, and longer lead times. We offer a simpler way.

We provide complete metal manufacturing services – all under one roof. From raw material to finished, ready‑to‑use product, we control every step of the process.

Our Integrated Manufacturing Capabilities

Process

Description



Casting

Die casting, squeeze casting, gravity casting, investment casting, sand casting

Forging

Hot forging, cold forging, closed‑die forging

CNC Machining

3‑axis, 4‑axis, 5‑axis milling; CNC turning; Swiss‑type machining

Heat Treatment

Annealing, quenching, tempering, solution treatment, aging

Surface Finishing

Anodizing, plating, powder coating, passivation, polishing

Assembly

Component assembly, sub‑assembly, final product assembly

Quality Inspection

CMM measurement, material testing, pressure testing

Why Choose an Integrated Manufacturing Partner?

Single Point of Responsibility
One purchase order, one project manager, one quality standard. No finger‑pointing between suppliers when issues arise.

Faster Time‑to‑Market
No waiting for castings to be shipped to a separate machine shop. No delays coordinating between finishing vendors.

Tighter Quality Control
Quality is built in at every stage – from material verification to final inspection – with full traceability throughout.

Lower Total Cost
Reduced logistics, fewer purchase orders, and optimized process flow mean lower overall project costs.

Complete Documentation
Material certificates, inspection reports, heat treatment records, and assembly logs – all from one source.

Industries We Serve

Industry

Typical Products



Automotive & EV

Motor housings, battery components, suspension parts, structural brackets

Medical Devices

Surgical instrument components, implantable device housings, diagnostic equipment parts

Aerospace

Structural brackets, hydraulic housings, engine components

Robotics & Automation

Joint housings, actuator parts, sensor mounts, frames

Industrial Machinery

Pump housings, gearboxes, valve bodies, hydraulic manifolds

Consumer Electronics

Enclosures, heat sinks, connectors, chassis components

How Our Integrated Process Works

Step 1: Material Selection & Pre‑forming
We help you select the optimal material and pre‑forming process – casting or forging – based on your part geometry, volume, and performance requirements.

Step 2: Precision CNC Machining
Pre‑formed blanks move directly to our CNC machining department for milling, turning, drilling, and tapping to achieve tight tolerances and critical features.

Step 3: Heat Treatment & Surface Finishing
Parts are heat treated (if required) and finished with anodizing, plating, coating, or polishing to meet functional and aesthetic specifications.

Step 4: Assembly & Quality Inspection
Assembled components undergo final CMM inspection, pressure testing, and functional validation before packaging and shipment.

Example: How We Simplify a Complex Project

A typical automotive customer might previously need:

  • A foundry for aluminum casting

  • A machine shop for CNC machining

  • A heat treater for T6 treatment

  • A plating shop for surface finishing

  • An assembly house for final assembly

Now, they need only us. One supplier. One quality standard. One delivery date.

Materials We Work With

Material Type

Common Grades



Aluminum Alloys

6061, 7075, A356, ADC12, A380

Steel & Stainless Steel

304, 316, 17‑4PH, 4140, 4340, 1018, Q235

Engineering Plastics

PEEK, POM, Nylon, PC, ABS, PTFE

Copper Alloys

Brass, Bronze, Beryllium Copper

Specialty Alloys

Titanium, Inconel, Monel

Quality Certifications

  • ISO 9001:2015 certified quality management system

  • IATF 16949 (automotive) – in progress

  • Full traceability and documentation available

Get a Quote for Your Next Project

Engineers and procurement professionals are invited to submit their drawings or 3D models for a free integrated manufacturing review. We will recommend the optimal combination of processes and provide a single, complete quote.


eric@slmetalparts.com

0086-532-84688009