Premier CNC Machining Services in China for Global Industries

Medical & Industrial Stainless Machining

Stainless Steel

Stainless steel is selected for CNC parts requiring corrosion resistance, strength, cleanliness, and long service life. LOM machines 304, 316L, 17-4 PH, 416, and related grades for medical devices, food-contact components, automotive parts, shafts, valve bodies, and high-reliability assemblies, with passivation and inspection documentation available when required.

Strong corrosion resistance

Medical and automotive applications

Passivation compatible

Suitable for turning and milling

304 316L 17-4 PH ISO 13485

C360 Brass CNC Turning

Brass

Brass is a highly machinable copper alloy used for fittings, threaded inserts, bushings, connectors, valve parts, decorative hardware, and precision turned components. LOM supports high-volume Swiss turning and CNC milling of brass parts with clean threads, tight concentricity, stable surface finish, and plating-ready geometry for electrical and fluid-control applications.

Excellent CNC machinability

Good electrical conductivity

Clean threads and fine details

Ideal for fittings and inserts

C360 Fittings Connectors Swiss Turning

Conductive Copper CNC Components

Copper

Copper is used when thermal transfer, electrical conductivity, grounding performance, or RF behavior is critical. LOM machines copper heat spreaders, busbars, electrodes, grounding blocks, optical components, and electronics hardware while managing burr control, surface quality, and deformation risk during precision CNC machining and finishing.

High electrical conductivity

Excellent heat transfer

Copper blackening available

Used for RF and electronics parts

Pure Copper Heat Transfer Busbars Grounding

5-Axis Titanium CNC Machining

Titanium

Titanium offers high strength-to-weight performance, corrosion resistance, fatigue resistance, and biocompatibility for demanding CNC parts. LOM machines titanium Grade 5 / Ti-6Al-4V components for medical devices, aerospace assemblies, robotics, defense hardware, and performance parts using controlled tooling strategies for stable dimensions and reliable surface quality.

High strength-to-weight ratio

Biocompatible material options

Excellent corrosion resistance

Suitable for 5-axis complex geometry

Ti-6Al-4V Grade 5 Medical Aerospace

Custom CNC machined alloy steel 4140 part

Alloy Steel CNC Machining

Steel & Alloy

Steel and alloy steels are used for high-load mechanical parts, shafts, gears, tooling, brackets, automotive components, and industrial assemblies that require strength, wear resistance, and dependable mechanical performance. LOM machines grades such as 4140, 1045, tool steels, and other alloy steels with heat treatment coordination, coating support, and inspection reporting.

High mechanical strength

Wear-resistant applications

Heat treatment compatible

Suitable for shafts, gears, and tooling

4140 Tool Steel Automotive High Load

Copper Nickel CNC Components

Copper Nickel

Copper nickel alloys are chosen for seawater resistance, anti-corrosion performance, thermal conductivity, and long-term reliability in marine, fluid-handling, defense, and instrumentation applications. LOM machines copper nickel components with attention to sealing faces, thread quality, surface finish, and dimensional consistency for harsh operating environments.

Excellent seawater resistance

Good thermal conductivity

Reliable for marine hardware

Suitable for fluid-control parts

Copper Nickel Marine Corrosion Resistant Fluid Systems

Plastic Series

Engineering plastics for lightweight, low-friction, insulating, chemically resistant, wear-resistant, and cost-effective CNC machined parts.

View All Materials

Custom black acetal POM CNC machined component

Stable Engineering Plastic

POM

POM, also known as acetal or Delrin, is a reliable CNC plastic for gears, rollers, bushings, jigs, fixtures, sliding parts, and precision mechanical components. LOM machines POM parts with clean edges, low-friction performance, stable dimensions, and repeatable quality for prototypes and volume production.

Low friction and good wear resistance

Stable machining behavior

Good stiffness for precision plastic parts

Ideal for gears, rollers, and bushings

POM Acetal Delrin Gears

Low-Friction Polymer

PTFE

PTFE is selected for CNC machined parts that require very low friction, chemical resistance, non-stick behavior, and strong electrical insulation. LOM produces PTFE seals, gaskets, insulators, sliding components, chemical handling parts, and custom polymer components while accounting for material softness and tolerance control during DFM review.

Very low coefficient of friction

Excellent chemical resistance

Strong electrical insulation

Suitable for seals and gaskets

PTFE Seals Gaskets Chemical

Durable CNC Plastic

Nylon

Nylon is used for CNC parts requiring toughness, fatigue resistance, impact strength, and good wear performance. LOM machines nylon guides, rollers, spacers, housings, bushings, and automation components with DFM guidance to manage moisture absorption, dimensional movement, and tolerance requirements.

High toughness and impact resistance

Good wear performance

Suitable for guides and rollers

DFM support for moisture-related movement

Nylon PA Wear Parts Automation

Prototype & Production Plastic

ABS

ABS is a practical CNC plastic for prototypes, housings, covers, brackets, test fixtures, consumer product parts, and electronics enclosures. LOM machines ABS when customers need good impact resistance, stable appearance, easy post-processing, and cost-effective plastic components before tooling or production scaling.

Cost-effective for prototypes

Good impact resistance

Easy to machine and post-process

Useful for housings and test fixtures

ABS Prototypes Housings Fixtures

Drawing Review & Material Guidance

Need Help Choosing
the Right Material?

Send your drawing and basic requirements. Our engineers will review manufacturability, material options, tolerances, and surface finishing needs.

Talk to an Engineer Send Drawing

STEP, IGES, DWG, PDF, ZIP, and common 3D CAD formats are accepted.

In-House Surface Treatment

Surface Finishing
Built for Production

20+ finishing options with self-owned anodizing and copper blackening lines for tighter lead time control, consistent appearance, and complete quality traceability.

Anodized Aluminum

Type II and Type III anodizing for aluminum CNC parts requiring corrosion resistance, stable color, improved surface hardness, and production-ready cosmetic consistency.

Request Anodizing Quote

Black Oxide

Controlled black oxide finishing for steel and precision machined metal parts that need reduced glare, dimensional stability, and a uniform technical appearance.

Quote Black Oxide Parts

Stainless steel passivation before and after comparison for CNC machined parts

Stainless Passivation

Passivation for 304, 316L, 17-4 PH, and medical-grade stainless components to remove free iron and improve corrosion resistance after precision machining.

Quote Stainless Passivation

24K gold electroplated CNC machined metal part for precision applications

24K Gold Electroplating

Gold electroplating for high-value CNC components requiring excellent conductivity, oxidation resistance, solderability, and premium surface performance.

Discuss Gold Plating

Bead blasted colored aluminum tubes with uniform matte CNC surface finish

Bead Blasting

Uniform matte blasting for aluminum tubes, housings, and CNC parts to reduce tool marks, refine texture, and prepare surfaces for anodizing or cosmetic inspection.

Specify Bead Blast Finish

Brushed Aluminum

Directional brushed finishing for aluminum CNC parts that require a refined satin appearance, controlled grain direction, and consistent visual quality across batches.

Plan Brushed Finish

Need a Specific Finish?

Match the Right Finish to Your CNC Part

Send your drawings, material, tolerance, cosmetic standard, and target application. Our engineering team will recommend the right surface treatment and quote your CNC parts with finishing included.

View More Finishes Get Finishing Quote

Machining Process

From CAD File to
Production-Ready Parts

A transparent CNC machining workflow built for engineering teams, procurement managers, and scaling hardware companies -- from rapid prototype validation to stable, documented mass production.

LOM Metal Machining CNC workshop with advanced machining equipment and production lines

50,000+ m² Greater Bay Area Facility

Real Machines.
Controlled Process.

600+ advanced production units, 450+ high-end CNC machines, 350+ Swiss-type turning centers, and 100+ multi-axis milling systems -- supported by in-house finishing and full quality traceability.

600+

Production Units

450+

CNC Machines

±0.005mm

Tolerance Capability

1M+

Volume Capacity

Aluminum CNC Workflow

Precision Manufacturing
Process

A controlled CNC machining workflow for complex aluminum robotic and automation components, ensuring stable accuracy from engineering review to final inspection.

Engineer reviewing CAD drawings and tolerance requirements for aluminum robotic components

DFM Review

Analyze drawings, 3D models, tolerances, and finishing requirements to improve manufacturability before production.

Certified aluminum raw stock prepared for precision CNC machining

Material Preparation

Select certified aluminum materials and inspect raw stock for stable machining performance and surface quality.

Fixture Planning

Develop dedicated fixtures and machining sequences to reduce setup errors and maintain multi-side accuracy.

5-Axis CNC Machining

Machine precision bores, mounting holes, pockets, curved profiles, and lightweight cutouts with 5-axis CNC technology.

Surface Finishing

Remove burrs from complex edges and apply bead blasting, anodizing, or other required surface treatments.

Final Inspection

Inspect key dimensions, bore accuracy, position tolerance, surface finish, and appearance before shipment.

Engineering Review

Build Aluminum Robotic Parts
With Controlled CNC Accuracy

Upload your drawing or 3D model, and our engineering team will review manufacturability, tolerance requirements, and production options.

Choose Your Production Path

Prototype Fast.
Scale Confidently.

Whether you need one functional prototype or a qualified supplier for high-volume production, LOM supports the full lifecycle with one engineering and quality system.

Rapid CNC prototyping for precision machined metal parts

Rapid Prototyping

Fast DFM-to-Part
Prototype Builds

Validate fit, function, tolerance, and material behavior before committing to tooling or volume orders. Our engineers support CAD review, machining strategy, and finishing selection for practical, production-minded prototypes.

1-piece to low-volume CNC machining with no MOQ restrictions
DFM review for tolerance feasibility, cost reduction, and manufacturability
Ideal for NPI, design validation, pilot runs, and investor demo hardware

1-Piece Start 80+ DFM Engineers Aluminum · Steel · Titanium

Start Rapid Prototype

Mass Production

Stable Output
For Volume Orders

Scale from approved prototype to 1,000,000+ parts with dedicated machining capacity, in-house finishing, documented inspection plans, and complete traceability for automotive, medical, optical, aerospace, and electronics programs.

450+ high-end CNC machines from Citizen, Tsugami, Mazak, and Brother
ISO 9001, IATF 16949, ISO 13485, and PPAP Level 3 support
Self-owned anodizing, copper blackening, and 20+ finishing options

1,000,000+ Pieces IQC → IPQC → FQC → OQC Global Logistics

Plan Mass Production

CNC Machining RFQ

Ready to Move Your Project from Sample to Production?

Upload your drawings or project files. Our DFM engineers will review tolerance, materials, finishing, and production feasibility for a practical CNC machining quote.

4hr

Quote Review

80+

DFM Engineers

1M+

Production Scale

Name *

Work Email *

Company

Quantity

Project Details *

Upload Drawings or Files

Accepted: STEP, IGES, DWG, DXF, PDF, ZIP, images.

Submitting...

JavaScript is required to submit this RFQ form online. Please email your drawings and requirements to our sales team.

Product Inspection

Verified Parts.
Traceable Quality.

LOM METAL MACHINING applies a complete IQC → IPQC → FQC → OQC inspection workflow for precision CNC parts, supported by CMM, XRF material verification, optical measurement, surface testing, and documented quality records.

20+

Inspection Tools

±0.005mm

Tolerance Capability

PPAP3

Documentation Support

Request Inspection-Ready Quote

Quality technician inspecting CNC machined components with precision measuring equipment — CNC Part Dimensional Inspection ISO 9001 · IATF 16949 · ISO 13485

Inspection Equipment List

Coordinate measuring machine for CNC part dimensional inspection

CMM Measurement

3D dimensional verification for tight-tolerance CNC milled and turned components.

XRF Analyzer

Material composition verification for aluminum, stainless steel, titanium, brass, and copper.

Optical inspection system measuring precision machined part features

Optical Vision System

Non-contact measurement for small features, profiles, holes, edges, and optical components.

Surface roughness tester inspecting CNC machined finish quality

Surface & Gauge Tools

Roughness testers, height gauges, micrometers, thread gauges, pin gauges, and custom fixtures.

Inspection Steps

01 IQC

Incoming Quality Control

Raw materials are verified by certificate review, XRF analysis, quantity check, and visual inspection before release to production.
02 FAI

First Article Inspection

The first machined parts are checked against drawings, GD&T, critical dimensions, material requirements, and surface specifications.
03 IPQC

In-Process Inspection

Operators and QC engineers monitor key dimensions during CNC milling, turning, Swiss machining, EDM, and finishing processes.
04 FQC

Final Quality Control

Finished components receive dimensional inspection, appearance review, surface finish checks, and special process verification.
05 OQC

Outgoing Quality Control

Parts are packed after final sampling, label verification, inspection report preparation, and shipment documentation review.

Need Inspection Reports?

Ask for CMM reports, material certificates, FAI, PPAP Level 3, or custom QC documentation with your RFQ.

Send RFQ

Applications We Support

CNC Machining Solutions
for Your Industry

We manufacture custom metal and plastic parts for a wide range of industries, from prototypes to production runs.

Automotive Parts

CNC machined housings, brackets, sensor parts, BMS components, and chassis hardware with IATF 16949 production support.

Automation Equipment

Precision fixtures, grippers, actuator housings, shafts, rollers, and machine modules for automated production systems.

Industrial Machinery

Durable machined blocks, bearing seats, couplings, valve bodies, pump parts, and replacement components for heavy-duty machinery.

Electronics & Connectors

Aluminum enclosures, heat sinks, RF housings, brass pins, copper contacts, and connector components with in-house finishing options.

Medical Components

ISO 13485 supported machining for surgical tools, diagnostic device parts, implant-related components, and PEEK or 316L precision parts.

Custom Hardware

Made-to-print fasteners, sleeves, bushings, spacers, knobs, brackets, pins, and custom mechanical hardware in metal or engineering plastic.