CNC Milling Service for Parts

High-precision 3-axis, 4-axis, and 5-axis milling for complex geometries and tight tolerances.
From prototype to production, we deliver consistent quality and exceptional surface finishes.

 

CNC Milling Service for Precision Custom Parts

MTSPi CNC provides CNC milling service for custom metal and plastic parts that need accurate pockets, slots, holes, flatness, surface finish, and repeatable fit. We support prototype milling, low-volume production, and repeat machined components for automation, robotics, electronics, equipment, medical devices, and hardware projects.

Send STEP or STP files, 2D drawings, material grade, quantity, tolerance notes, and finish requirements. Our team reviews tool access, workholding, internal radii, wall thickness, datum strategy, and inspection points before quoting.

Milled part features

  • Pockets, slots, counterbores, tapped holes, bosses, ribs, contours, chamfers, and sealing faces
  • Flat plates, housings, brackets, fixtures, covers, manifolds, and adapter blocks
  • 3-axis milling for standard geometry and multi-axis support for complex access

Materials

  • Aluminum 6061, 7075, 5052 and other common machining grades
  • Stainless steel, carbon steel, brass, copper, titanium, ABS, POM, nylon, acrylic, PC, and PEEK
  • Material guidance based on strength, weight, corrosion, wear, and finish needs

Quality checks

  • Critical dimension review before machining
  • CMM, caliper, micrometer, pin gauge, thread gauge, and surface finish checks when required
  • Inspection reports for functional dimensions and buyer-specified features

CNC Milling Capabilities

Buyer needMTSPi CNC supportTypical use case
Prototype milled partsFast milling of functional samples and engineering test partsFit checks, product development, and design validation
Low-volume CNC millingRepeatable setup for small batches with controlled dimensionsBridge production, pilot runs, and custom hardware
Precision pockets and holesToolpath planning for flatness, perpendicularity, thread depth, and hole positionHousings, fixtures, plates, brackets, and assembly components
Surface finishingAnodizing, bead blasting, polishing, passivation, plating, painting, and powder coating coordinationCosmetic parts, corrosion resistance, and wear surfaces

Why This Page Matters for Buyers

CNC milling buyers often lose time when drawings do not identify critical surfaces or when small internal corners are designed without realistic cutter access. MTSPi CNC checks these issues early so the milling route, material, finish, and inspection plan match the part function instead of only matching a price target.

Related CNC Service and Resource Pages

Use these related pages to compare process choices, materials, inspection needs, and next-step manufacturing routes.

FAQ

What files are best for a CNC milling quote? STEP, STP, X_T, IGS, or SolidWorks files are useful for geometry. A 2D drawing is still important for tolerances, threads, surface finish, material, and inspection requirements.

Can MTSPi CNC make both prototypes and small batches? Yes. We support one-off prototypes, engineering samples, low-volume CNC milling, and repeat batches when the design is ready for production.

How can I reduce CNC milling cost? Use realistic tolerances, allow larger internal radii where possible, avoid unnecessary deep narrow pockets, identify only functional tight dimensions, and confirm finish requirements before machining.

CNC Milling Service

Precision 3/4/5-axis and gantry milling for prototypes and production runs with tight tolerances.

Precision Machining High-precision CNC milling head working on aluminum workpiece
Advanced CNC Milling Solutions

Our CNC milling services deliver high-precision parts with complex geometries. We utilize state-of-the-art 3-axis, 4-axis, and 5-axis milling machines to handle everything from simple prototypes to complex production runs.

Technical Specifications
Tolerance
±0.005 mm
Max Part Size
2300 × 1300 × 600 mm
Surface Finish
Ra 0.8–3.2 μm
Lead Time
3–7 Days
Milling Capabilities
  • 3-Axis Precision Milling
  • 4-Axis Simultaneous Machining
  • 5-Axis Complex Geometry
  • Large Gantry Milling
  • High-Speed Machining
  • Multi-Part Fixturing
Common Applications
Aerospace AI Automation Auto Vehicle Machinery Medical Robot Renewable Energy Semi-Conductor Telecommunication Consumer Electronics
Compatible Materials
Aluminum Stainless Steel Titanium Brass ABS Nylon Polycarbonate PEEK
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