Custom CNC Machining Services: High-Precision On-Demand Parts
Turn your complex designs into tight-tolerance metal and plastic components. Rapid prototyping within 3 days, on-demand production, and 100% inspection backed by in-house CMM metrology.
- Tolerances: Down to ±0.005 mm (±0.0002”)
- Lead Time: As fast as 3-5 days
- Capabilities: 3-Axis, 4-Axis, 5-Axis Milling & Turning
- Confidentiality: Strict NDA & IP Protection
Comprehensive Precision Machining Capabilities
From rapid prototypes to high-volume contract manufacturing, XR Precision leverages advanced multi-axis machining cells to produce tight-tolerance components with geometric excellence.
CNC Milling
CNC Milling Service (3-Axis, 4-Axis & 5-Axis)
Ideal for complex prismatic parts, enclosures, and structural aerospace components. Equipped with high-speed spindles and automatic tool changers for continuous precision cutting.
CNC Turning
CNC Turning & Swiss Machining
Optimized for cylindrical parts, shafts, threaded bushings, and micro-precision medical components with live tooling that allows simultaneous milling and cross-drilling.
5-Axis Simultaneous CNC Machining
5-Axis Multi-Axis CNC Machining
Machining intricate continuous surfaces and multi-sided features in a single setup, minimizing human repositioning errors while drastically improving dimensional accuracy.
Wire EDM & Precision Machining
Wire EDM & Precision Machining
Non-contact electrical discharge cutting for hardened steels, sharp internal corners, deep slots, and fragile profiles where traditional cutting tools fail.
CNC Machining Capabilities & Technical Specifications
Compare our standard engineering thresholds with precision-grade capabilities.
| Parameter | Standard Capability | Precision / High-Tolerance |
|---|---|---|
| Machining Tolerance | ISO 2768-m (Metals: ±0.10 mm / Plastics: ±0.20 mm) | Down to ±0.005 mm (±0.0002”) upon drawing review |
| Max Milling Travel | 1000 × 600 × 500 mm (39.4” × 23.6” × 19.7”) | Up to 2000 × 1200 × 650 mm (Gantry 5-Axis) |
| Max Turning Capacity | Ø 300 mm × 600 mm Length | Ø 500 mm × 1000 mm (Swiss / Multi-Spindle) |
| Surface Roughness (Ra) | Ra 1.6 μm – 3.2 μm (Standard As-Machined) | Down to Ra 0.4 – 0.2 μm (Micro-Ground / Lapped) |
| Min Wall Thickness | 0.8 mm (Metals) / 1.2 mm (Plastics) | 0.5 mm (Subject to geometry and alloy grade) |
| Production Volume | 1 – 50 pcs (Rapid Prototyping) | 10,000+ pcs (Low to High-Volume Production) |
| Supported File Formats | STEP (.step, .stp), IGES (.igs), X_T | 3D CAD + 2D PDF (with critical GD&T callouts) |
Common Materials Optimized for CNC Machining
We machine certified metal billets and extruded engineering plastic blocks. Full Material Test Reports (MTR) provided.
Metals
Aluminum
Outstanding machinability and strength-to-weight ratio. Aluminum alloys offer excellent thermal/electrical conductivity, natural corrosion resistance, and superb anodizing response. Ideal for aerospace brackets, drone frames, and electronics enclosures.
Common Grades: 6061-T6, 7075-T6, 5052, 2024
Specs Panel:
- Price: $$
- Lead Time: < 5 days
- Tolerances: Down to ±0.005 mm
- Max Part Size: 2000 × 1200 × 650 mm
- Min Part Size: 2 × 2 × 2 mm
Copper
Exceptional electrical and thermal conductivity with superior ductility and corrosion resistance. Requires specialized high-shear tooling to prevent burr formation and gummy chip welding during CNC machining.
Common Grades: C110 (ETP Copper), C101 (OFHC Copper)
Specs Panel:
- Price: $$$$
- Lead Time: < 7 days
- Tolerances: Down to ±0.010 mm
- Max Part Size: 1000 × 600 × 400 mm
- Min Part Size: 2 × 2 × 2 mm
Brass
Free-machining metal offering smooth surface finishes, low friction, non-sparking properties, and excellent corrosion resistance. Heavily favored for precision fluid fittings, musical hardware, and electrical contacts.
Common Grades: C360 (Free-Cutting Brass), C260
Specs Panel:
- Price: $$$
- Lead Time: < 5 days
- Tolerances: Down to ±0.005 mm
- Max Part Size: 1200 × 800 × 500 mm
- Min Part Size: 1 × 1 × 1 mm
Bronze
Renowned for extreme wear resistance, low metal-to-metal friction, and high resistance to saltwater corrosion. Typically machined into heavy-duty bushings, marine bearings, sleeve guides, and pump impellers.
Common Grades: SAE 660 (Bearing Bronze), C932, Aluminum Bronze C954
Specs Panel:
- Price: $$$$
- Lead Time: < 7 days
- Tolerances: Down to ±0.008 mm
- Max Part Size: 1000 × 600 × 400 mm
- Min Part Size: 3 × 3 × 3 mm
Steel
Structural workhorse delivering exceptional tensile strength, impact toughness, and wear life. Highly responsive to heat treatment (carburizing/quenching) for hardened core applications like shafts, gears, and fasteners.
Common Grades: 1018, 1045, 4140, 4340, Tool Steel D2/A2
Specs Panel:
- Price: $$
- Lead Time: < 5 days
- Tolerances: Down to ±0.008 mm
- Max Part Size: 1500 × 900 × 500 mm
- Min Part Size: 2 × 2 × 2 mm
Stainless Steel
Superior chemical, acid, and marine corrosion resistance combined with high yield strength. Requires rigid setups and controlled cutting speeds to manage work-hardening during milling.
Common Grades: 304, 316L (Marine/Medical), 303 (Free-machining), 17-4 PH
Specs Panel:
- Price: $$$
- Lead Time: < 7 days
- Tolerances: Down to ±0.005 mm
- Max Part Size: 1500 × 1000 × 500 mm
- Min Part Size: 2 × 2 × 2 mm
Magnesium
The lightest structural metal in engineering—33% lighter than aluminum. Delivers outstanding vibration damping, electromagnetic shielding, and high-speed cutting capability under strict spark-free machining protocols.
Common Grades: AZ31B, AZ91D
Specs Panel:
- Price: $$$$
- Lead Time: < 7 days
- Tolerances: Down to ±0.010 mm
- Max Part Size: 1000 × 600 × 400 mm
- Min Part Size: 5 × 5 × 5 mm
Titanium
Extreme strength-to-weight ratio, high melting point, and full biocompatibility. Abrasive and low in thermal conductivity; requires specialized carbide tooling and high-pressure flood coolant for aerospace and medical components.
Common Grades: Grade 2 (Pure Titanium), Grade 5 (Ti-6Al-4V)
Specs Panel:
- Price: $$$$$
- Lead Time: < 10 days
- Tolerances: Down to ±0.005 mm
- Max Part Size: 1200 × 800 × 450 mm
- Min Part Size: 2 × 2 × 2 mm
Zinc
High density and self-lubricating characteristics with excellent electroplating and painting acceptance. Primarily machined for precision lock components, automotive electrical hardware, and shielding cavities.
Common Grades: Zamak 3, Zamak 5, ZA-8
Specs Panel:
- Price: $$
- Lead Time: < 5 days
- Tolerances: Down to ±0.008 mm
- Max Part Size: 800 × 500 × 300 mm
- Min Part Size: 2 × 2 × 2 mm
Plastics
ABS
Economical, rigid engineering thermoplastic with balanced impact resistance and heat stability. Highly popular for rapid functional prototypes, cosmetic housings, and structural enclosures.
Specs Panel:
- Price: $
- Lead Time: < 3 days
- Tolerances: Down to ±0.02 mm
- Max Part Size: 1200 × 800 × 400 mm
- Min Part Size: 2 × 2 × 2 mm
PC
Unmatched impact toughness and optical clarity. Retains structural integrity across a wide thermal range. Widely machined for transparent inspection ports, safety covers, and electrical housings.
Specs Panel:
- Price: $$
- Lead Time: < 5 days
- Tolerances: Down to ±0.02 mm
- Max Part Size: 1200 × 800 × 400 mm
- Min Part Size: 3 × 3 × 3 mm
PLA
Biodegradable, rigid thermoplastic suited for low-stress architectural models, educational testing jigs, and rapid aesthetic verification prototypes. Requires sharp cutters and light feeds to prevent thermal softening.
Specs Panel:
- Price: $
- Lead Time: < 3 days
- Tolerances: Down to ±0.05 mm
- Max Part Size: 800 × 500 × 300 mm
- Min Part Size: 5 × 5 × 5 mm
PMMA
Crystal-clear optical transparency (up to 92% light transmittance) with excellent UV resistance. Can be vapor-polished or buffed to a scratch-free mirror finish for lenses, light pipes, and fluidic manifolds.
Specs Panel:
- Price: $$
- Lead Time: < 5 days
- Tolerances: Down to ±0.02 mm
- Max Part Size: 1000 × 600 × 300 mm
- Min Part Size: 2 × 2 × 2 mm
POM
The benchmark plastic for precision CNC machining. Delivers high stiffness, low moisture absorption, minimal friction, and exceptional dimensional retention. Ideal for gears, sliding bushings, and valves.
Specs Panel:
- Price: $$
- Lead Time: < 3 days
- Tolerances: Down to ±0.01 mm
- Max Part Size: 1500 × 800 × 450 mm
- Min Part Size: 1 × 1 × 1 mm
PA
High mechanical strength, excellent wear resistance, and high shock-absorbing capability. Prone to moisture absorption; best specified for rugged gears, roller guides, wear pads, and vibration isolators.
Common Grades: PA6, PA66, 30% Glass-Filled Nylon
Specs Panel:
- Price: $$
- Lead Time: < 5 days
- Tolerances: Down to ±0.03 mm
- Max Part Size: 1200 × 700 × 400 mm
- Min Part Size: 3 × 3 × 3 mm
PE
Self-lubricating, non-stick, and chemically inert plastic with near-zero moisture absorption and outstanding impact endurance. Widely machined for food processing line guides, chute liners, and medical wear rings.
Specs Panel:
- Price: $$
- Lead Time: < 5 days
- Tolerances: Down to ±0.05 mm
- Max Part Size: 1200 × 800 × 400 mm
- Min Part Size: 5 × 5 × 5 mm
PLA
Premium ultra-performance polymer with continuous operating resistance up to 260°C. Biocompatible, gamma/autoclave sterilizable, and highly resistant to aggressive chemicals. Used in spinal implants, semiconductor wafer rings, and aerospace seals.
Common Grades: Virgin PEEK, 30% Glass-Filled, Carbon-Filled
Specs Panel:
- Price: $$$$$
- Lead Time: < 5 days
- Tolerances: Down to ±0.01 mm
- Max Part Size: 1000 × 600 × 350 mm
- Min Part Size: 1 × 1 × 1 mm
PP
Excellent chemical resistance to acids and alkalis, low density, and high fatigue resistance for living hinge mechanisms. Frequently machined for laboratory fluid reservoirs, battery brackets, and chemical piping manifolds.
Specs Panel:
- Price: $
- Lead Time: < 5 days
- Tolerances: Down to ±0.05 mm
- Max Part Size: 1000 × 600 × 350 mm
- Min Part Size: 5 × 5 × 5 mm
HIPS
Cost-effective rigid polymer with enhanced impact modification. Easy to mill, drill, and glue, serving as a reliable substrate for visual evaluation models, signages, and pre-production packaging fixtures.
Specs Panel:
- Price: $
- Lead Time: < 3 days
- Tolerances: Down to ±0.03 mm
- Max Part Size: 1000 × 600 × 300 mm
- Min Part Size: 4 × 4 × 4 mm
Precision Surface Finishing Options
As Machined
Visible cutting tool marks; Ra 1.6 - 3.2 μm.
Sand Blasting
Uniform matte or satin finish, cleans up tooling lines.
Anodizing
Corrosion protection, wear resistance, available in diverse colors (Black, Clear, Red, Blue, Gold).
Electropolishing
Maximizes corrosion resistance for stainless steel medical & food components.
Powder Coating
Thick, durable, scratch-resistant protective layer for outdoor/industrial housings.
Electroless Plating
Uniform thickness coating inside blind holes with high lubricity and wear life.
Strict Metrology & Quality Verification
At XR Precision, precision is verified, not assumed. Every machined part passes through our dedicated in-house inspection center prior to packaging. We bridge advanced manufacturing with uncompromising quality verification.
Quality Assurance Capabilities
- Zeiss / Mitutoyo Coordinate Measuring Machines (CMM) for automated 3D dimensional verification.
- Optical Projectors & Video Measuring Systems (VMS) for high-precision micro-profile inspection.
- Surface Roughness Testers & Hardness Testing to verify Ra finish and heat-treatment specifications.
Quality Documentation Available
- 100% Dimensional Inspection Report (Full CMM Report)
- Material Test Report (Mill Certs)
- First Article Inspection (FAI) per AS9102 standards
- Certificate of Conformance (CoC)
High-Precision CNC Machining Across Critical Industries
Electronics & Semiconductor
Heat sinks, shielding RF cavities, vacuum wafer chucks, PCB testing fixtures.
Robotics & Factory Automation
Rigid robot baseplates, multi-axis arm linkages, linear rail mounting brackets.
Aerospace & Drones (UAV)
ALightweight structural airframe ribs, motor mounting plates, sensor gimbals.
Optical & Medical Instrumentation
Spectrometer base chassis, kinematic mirror stages, endoscopic housing covers.
New Energy & Power Systems
High-voltage copper busbar terminal studs, solar tracker pivot pins, battery pack tie rods.
Marine & Subsea
Stainless steel 316L propeller drive shafts, seawater valve stems, cable penetration caps.
How We Work: Streamlined 4-Step Process
Upload Drawings & Request a Quote
Submit your 3D models (.STEP) and 2D drawings (.PDF) with tolerances. All files are protected by our non-disclosure agreement.
DFM Analysis & Engineering Confirmation
Our technical team conducts a comprehensive Design for Manufacturing (DFM) review to identify cost-reduction opportunities and eliminate machining bottlenecks.
Precision Production & Process Monitoring
Your parts are routed to dedicated CNC machining cells with optimized CAM toolpaths and strict in-process machining checks.
Quality Inspection & Global Fast Delivery
Parts undergo final CMM inspection, protective vacuum packaging, and rapid international express delivery (DHL, FedEx, UPS) directly to your door.
Frequently Asked Questions
What 3D/2D file formats do you accept for CNC quoting?
We prefer 3D CAD models in STEP (.step, .stp) or IGES (.igs) formats. For components with critical tolerances, threads, or specific surface finish callouts, please also include a 2D engineering drawing in PDF, DWG, or DXF format with clear GD&T specifications.
What is your standard turnaround time for CNC prototypes?
Simple machined parts can be completed and shipped in as fast as 3 business days. Complex 5-axis parts or parts requiring special surface finishes (such as Type III hard anodizing or plating) generally require 5 to 10 business days.
What tolerances can XR Precision consistently achieve?
Our general machining standard conforms to ISO 2768-m. For high-precision mating features, bearing bores, and medical/optical fittings, we can hold tight tolerances down to ±0.005 mm (±0.0002”) upon engineering review.
Can XR Precision sign an NDA before we share drawings?
Absolutely. We take customer intellectual property very seriously. We are happy to sign your company’s Non-Disclosure Agreement (NDA) or provide our mutual confidentiality agreement before you share any CAD files.
What is your Minimum Order Quantity (MOQ)?
We have no MOQ requirement. We support 1-piece rapid prototypes, functional testing batches of 10–50 pieces, as well as low-to-mid volume production runs of 10,000+ pieces.