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Custom CNC Machine Parts | Build-to-Print Precision Manufacturing

Custom CNC machined metal and plastic components manufactured strictly to client engineering drawings. Processing capabilities encompass 3-axis, 4-axis, and 5-axis CNC milling, CNC turning with live tooling, and secondary finishing. Suited for low-volume functional prototyping and medium-to-high volume production runs requiring tight geometric tolerances and certified material traceability.

CNC Machine Fixture Bases
Custom-machined and stress-relieved base plates, subplates, and multi-axis mounting adapters for CNC vertical, horizontal, and 5-axis machining centers. Manufactured directly from customer CAD
CNC Machine Screw Support Blocks
Standardized precision ball screw support units for axial load transmission in CNC axes and linear actuators. Engineered for high axial rigidity and low rotational runout under bidirectional dynamic
CNC Machine Guide Rail Bases
Heavy-section structural bases engineered for linear guide and ballscrew alignment in CNC machine tools. Machined from stress-relieved castings or structural steel weldments, providing a stable
CNC Machine Worktable Components
Precision-ground modular sub-plates and T-slot worktables engineered for vertical (VMC) and horizontal (HMC) machining centers. Designed to reduce setup downtime via standardized grid patterns
CNC Machine Turret Components
Compatibility / Customization: Built to OEM specs or custom engineering drawings (Sauter, Duplomatic, or proprietary interfaces).. Primary Materials: 42CrMo4 (EN 1.7225 / AISI 4140), 20NiCrMo2 (EN
CNC Machine Spindle Housings
Custom-machined and cast spindle housings for high-speed motorized spindles, heavy-duty milling units, and precision machine tool assemblies. Built to maintain micron-level concentricity and thermal

Technical Specifications

Parameter	Standard Capability	High-Precision Capability
Linear Dimensional Tolerance	±0.05 mm	±0.005 mm
Maximum Machining Envelope (Milling)	1000 × 600 × 500 mm	1500 × 800 × 600 mm
Maximum Turning Diameter / Length	Φ400 × 750 mm	Φ600 × 1200 mm
Surface Roughness (Ra)	1.6 μm	0.4 μm
Supported File Formats	STEP, IGES, X_T, DXF, PDF	SLDPRT, DWG

Available Materials

Aluminum

6061-T6, 7075-T6, 2024, 5052

Stainless Steel

304, 316/316L, 17-4PH, 420, 440C

Carbon & Alloy Steel

1045, 4140, 4340, 12L14

Engineering Plastics

Delrin (POM), PEEK, Nylon, PTFE, Polycarbonate (PC), ABS

Specialty Alloys

Titanium (Gr.5), Brass (C36000), Copper, Bronze

Key Features

Multi-Axis Contour Machining

Complex 3D geometries, undercuts, and internal pockets machined in fewer setups to minimize stack-up errors.

Tight GD&T Adherence

Strict execution of position, flatness, parallelism, and concentricity callouts per ASME Y14.5 or ISO 1101 standards.

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Controlled Edge Breaking

Elimination of burrs from cross-holes, internal threads, and sharp corners via targeted mechanical and manual deburring.

Thread Integrity

Rigid CNC tapping and thread milling verified with go/no-go thread gauges (UNC, UNF, metric, and NPT).

Applications

Industrial Automation

Mounting brackets, drive shafts, indexer plates, and linear guide housings.

Robotics

End-effector jaws, lightweight arm linkages, gearboxes, and sensor mounting blocks.

Medical Devices

Surgical instrument housings, diagnostic machine chassis components, and fluid manifold blocks.

Fluid Power Systems

Valve bodies, adapter fittings, custom flanges, and hydraulic cylinders.

Customization

Surface Treatments

Anodizing (Type II and Type III Hardcoat, clear/colored), Passivation (ASTM A967 / QQ-P-35), Electroless Nickel Plating, Zinc Plating, Powder Coating, and Black Oxide.

Direct Part Marking

Laser engraving of serial numbers, part numbers, company logos, and data matrix codes.

Mechanical Sub-Assembly

Installation of Helicoil wire thread inserts, press-fit dowel pins, and threaded standoffs.

Quality Control & Inspection

Parts undergo physical and dimensional verification before packaging:

Dimensional Metrology

Coordinate Measuring Machines (CMM), optical comparators, height gauges, and calibrated micrometer sets.

Surface & Thread Verification

Ra surface roughness testers and calibrated thread plug/ring gauges.

Material Traceability

Mill Test Reports (MTRs) provided for raw metals verifying chemical composition and mechanical properties per ASTM standards.

Inspection Reporting

First Article Inspection (FAI) reports compiled per AS9102 upon request.

Production & Delivery

Shop-Floor Capacity

25 CNC vertical machining centers, 12 CNC lathes with live tooling, and wire EDM units operating on a dual-shift schedule.

Turnaround Times

Prototype batches (1 to 10 parts) dispatched in 5 to 7 days; production volumes managed via scheduled release plans.

Export Packaging

Individual vacuum-sealed polybags, VCI anti-corrosion paper wrapping, and heavy-duty corrugated cartons or custom foam-lined wooden crates.

FAQ

Q: What file formats do you require for quotation?

A: 3D CAD files in STEP, IGES, or Parasolid format are required for CAM programming and cycle time estimation. A 2D PDF drawing containing critical tolerances, thread callouts, material specs, and surface finish requirements is mandatory for production and inspection.

Q: How do you handle non-disclosure agreements (NDAs)?

A: All client CAD files, technical drawings, and project specifications are treated as strict intellectual property. Standard or client-provided NDAs can be executed prior to file sharing.

Q: What is your standard lead time?

A: Standard lead times range from 7 to 15 business days depending on material availability, machining complexity, and secondary surface finishing. Expedited production slots are available for urgent prototype runs.

Q: How do you verify material authenticity?

A: Raw metals are procured exclusively from certified mills. Material Test Reports (MTRs) accompany shipments for alloy and stainless steel orders to confirm compliance with chemical and mechanical standards.

Request a Quote

Submit your technical drawings and 3D models to receive a Design for Manufacturability (DFM) review and quotation within 24 hours.
Email: 346320463@qq.com
Required RFQ Files: 3D CAD (.step/.iges), 2D Drawing (.pdf with GD&T callouts), estimated annual volume, and required delivery schedule.

We are one of the most experienced cnc machine parts manufacturers and suppliers in China, specialized in providing high quality customized products for global clients. We warmly welcome you to buy high-grade cnc machine parts at competitive price from our factory.

CNC Machine Parts