CNC Milling

Technical Data

CNC Milling Parameter Specifications

Our manufacturing capabilities and precision standards for CNC milled parts.

Machining Capabilities

Machining Processes CNC Milling, Drilling, Tapping, 3-Axis, 4-Axis, and 5-Axis Machining
Part Size Capability Reviewed based on drawings, material, structure, and machining setup
Materials Aluminum, Stainless Steel, Carbon Steel, Brass, Copper, Titanium, Tool Steel
Surface Finishing Anodizing, Sand Blasting, Powder Coating, Plating, Polishing, Brushing

Precision & Quality

Critical Tolerance±0.01 mm for precision machined features
General Tolerance Based on material, part size, structure, and drawing requirements
Surface QualityMachined, polished, brushed, sand blasted, anodized, or plated finishes available
Inspection CMM, optical measurement, and full dimensional reports available

Production & Lead Time

Prototype Lead Time 3 – 7 business days
Production Lead Time 7–15 business days
MOQ 1 piece (prototype supported)
Production Volume Prototype, low-volume, and batch production supported

Technical Requirements

File Formats STEP, IGES, STP, DXF, DWG, PDF, STL
Minimum Feature Size Subject to material, tool access, depth, and part geometry
Minimum Wall Thickness Depends on material, structure, and machining depth
Engineering SupportDFM review and machining feasibility evaluation available

Note: Specifications are for reference only. Final tolerance, lead time, surface finish, and manufacturability depend on material, part design, quantity, and project requirements.

What We Offer

CNC Milling Capabilities

From simple flat profiles to complex free-form surfaces, our CNC milling capabilities support prototypes, low-volume runs, and batch production with stable process control.

3-Axis

3-Axis CNC Milling Services

Ideal for flat parts, slots, pockets, drilled holes, and basic contour features. Our 3-axis CNC milling service supports stable machining for simple to moderately complex metal components.

Flat surfaces, slots, pockets, and contours
Prototype and batch production support
Cost-effective for simple metal geometries
Aluminum, stainless steel, brass and other metals supported

4-Axis

4-Axis CNC Milling Services

With rotary-axis machining support, 4-axis CNC milling helps machine cylindrical features, angled surfaces, and multi-side details with fewer setups.

Rotary-axis machining support
Cylindrical and angled metal features
Reduced setup time compared with multiple setups
Suitable for shafts, sleeves, cams, and custom metal fixtures

5-Axis

5-Axis CNC Milling Services

5-axis CNC milling supports complex metal geometries, angled features, and free-form surfaces that require precise tool access from multiple directions.

Indexed or simultaneous 5-axis machining support
Complex 3D metal surfaces and angled features
Fewer setups and reduced repositioning error
Detailed inspection for complex machined features

Why Milling Wins

Advantages of CNC Milling

CNC milling combines geometric freedom, material versatility, and dimensional precision that few manufacturing processes can match.

Exceptional Dimensional Accuracy

Achieve tolerances as tight as ±0.01 mm with consistent part-to-part repeatability across large production runs.

Versatile Material Compatibility

Mills virtually any material — aluminum alloys, stainless steel, titanium, hardened steel, copper, and high-performance plastics.

Complex Geometries in One Setup

5-axis simultaneous milling machines undercuts, compound angles, and free-form surfaces without multiple repositioning steps.

Superior Surface Finish

Achieve surface roughness Ra 0.4–3.2 μm with fine-finishing passes, reducing or eliminating secondary polishing operations.

Rapid Prototype to Production

First article deliverable in 3–7 days; high-volume production with consistent quality. No tooling investment required.

Scalable Volume & Low MOQ

Single-piece prototypes to 10,000+ production parts. Same tolerances at every volume level — no quality compromise.

Multi-Axis Capability

3-, 4-, and 5-axis capabilities allow efficient machining of parts that would otherwise require multiple operations or fixtures.

ISO-Certified Quality System

Every milled part undergoes CMM inspection with a full dimensional report. ISO 9001:2015 certified manufacturing processes.

Our Commitment

Why Choose Tongyong Hardware

Guided by “Go Global · Co-Create,” we support global B2B customers with custom metal parts manufacturing — from engineering review and prototyping to quality control and delivery coordination.

Engineering Support

DFM review, material advice, process planning, and feasibility support based on drawings or samples.

Integrated Manufacturing

Machining, forming, casting, tooling, finishing, inspection, packaging, and delivery coordination under one workflow.

OEM & Project Support

Engineering support for product development, OEM sourcing, and repeat production projects, with NDA available.

Prototype to Production

Support for samples, low-volume trials, and batch production as projects move toward stable supply.

Quality Control

Material checks, process monitoring, dimensional inspection, surface review, and final packaging checks by project needs.

Global Delivery

Export packaging and delivery coordination for international B2B projects, with responsive communication throughout the process.

Our Process

How We Bring Your Idea to Life

From first inquiry to final delivery — a streamlined, transparent process designed for efficiency.

Inquiry

Send us your drawings, specifications or application requirements.

Analysis

Our engineers evaluate feasibility and suggest optimized solutions.

Quotation

Receive a detailed quote with pricing, lead time and specifications.

Sampling

Prototype samples are produced for testing and confirmation.

Production

Mass production with strict quality control at every stage.

Delivery

Secure packaging, on-time shipment and full after-sales support.

Our Work

CNC Milling Product Cases

A selection of precision CNC milled components across aerospace, medical, automotive, and electronics industries.

Lightweight Mounting Bracket

Aluminum Heat Sink

Precision Linkage Block

Cooling Plate

Aluminum Electronics Enclosure

Circular Mounting Plate

Aluminum Spacer Blocks

Metal Hole Array Plate

Understanding the Process

What is CNC Milling?

CNC milling is a computer-controlled subtractive manufacturing process that uses rotating multi-point cutting tools to remove material from a workpiece. Unlike turning, the workpiece remains stationary while the tool moves across multiple axes — X, Y, and Z — to create precision flat surfaces, slots, pockets, holes, and complex 3D geometries.

The process is widely used for machining steel and plastic components. CNC milling machines are equipped with servo motors, spindles, and advanced CNC controllers, enabling consistent high-throughput production with repeatable accuracy.

Modern multi-axis CNC milling centers (4-axis & 5-axis) can machine complex, free-form surfaces in a single setup, eliminating repositioning errors and significantly reducing lead time — making it the go-to process for precision prototype and production parts.

Multi-Axis Control

3, 4 & 5-axis machining centers

High Precision

Tolerance down to ±0.01mm

Complex Geometry

Contoured surfaces & pockets

Fast Turnaround

Prototype in 3–7 business days

Precision CNC Milling Services

Precision CNC Milling Services for Custom Metal Parts