Robotics CNC Machined Parts
Custom CNC Machined Components for Robotic Systems
We manufacture precision CNC machined parts for industrial robots, collaborative robots, robotic arms, joints, end effectors, AGV/AMR systems, and automated equipment. From prototypes and low-volume orders to repeat production, we produce custom robotic components from your 2D drawings or 3D CAD files.
Key Capabilities:
CNC Turning, CNC Milling, 5-Axis Machining, Swiss CNC & Turn-Mill
Aluminum, Stainless Steel, Steel, Brass, Copper & Titanium
Tight dimensional and geometric tolerances for precision assemblies
Custom surface finishing, inspection and export packaging
Prototype, low-volume and repeat production
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Robotics CNC Machined Parts We Manufacture

Robotic Arm Components

Robot Joint Components

Shafts & Pins

Bushings & Spacers

End Effector Components

Mounting Brackets

Robot Housings & Covers

Flanges & Mounting Plates
CNC Machining Processes for Robotics Parts
| CNC Machining Process | Typical Robotics Parts | Key Advantages |
|---|---|---|
| CNC Turning | Shafts, Pins, Bushings, Spacers, Flanges | High dimensional accuracy for cylindrical parts |
| CNC Milling | Brackets, Mounting Plates, Housings, End-Effector Parts | Complex profiles, pockets and mounting features |
| 5-Axis CNC Machining | Robot Joint Housings, Complex Brackets, End Effectors | Multi-sided machining with fewer setups |
| Swiss CNC Machining | Small Shafts, Pins, Bushings, Precision Connectors | High precision for small and slender components |
| CNC Turn-Mill | Shafts, Flanges, Coupling Components | Turning and milling in a single setup |
| CNC Grinding | Precision Shafts, Bearing Seats, Pins | Tight dimensional accuracy and fine surface finish |
| CNC Drilling & Tapping | Mounting Plates, Brackets, Housings | Accurate holes, threads and mounting patterns |
Robotic components often combine tight fits, multiple mounting features and complex geometries. We select the appropriate CNC machining process based on part geometry, material, tolerance requirements and production volume to achieve consistent dimensional accuracy and reliable assembly performance.
Robotics CNC Machining Materials
| Material | Common Grades | Typical Robotics Applications |
|---|---|---|
| Aluminum | 6061-T6, 6082-T6, 7075-T6 | Robot arms, brackets, housings, mounting plates |
| Stainless Steel | 304, 316L, 17-4 PH | Shafts, joints, end effectors, housings |
| Carbon Steel | 1018, 1045 | Pins, shafts, brackets, structural components |
| Alloy Steel | 4140, 4340 | Drive shafts, pins, high-load joint components |
| Brass | C36000, C26000 | Bushings, fittings, connectors, small precision parts |
| Bronze | C93200, C54400 | Bushings, bearing components, wear parts |
| Copper | C11000, C14500 | Electrical contacts, conductive components, heat-transfer parts |
| Titanium | Grade 2, Grade 5 (Ti-6Al-4V) | Lightweight structural parts, high-strength components |
Material Selection for Robotics Parts
Lightweight robot arms: 6061-T6, 6082-T6, 7075-T6 Aluminum
High-load shafts and pins: 4140, 4340 Alloy Steel
Corrosion-resistant components: 316L, 17-4 PH Stainless Steel
Wear-resistant bushings: C93200 Bronze, C54400 Phosphor Bronze
Conductive components: C11000 Copper, C14500 Tellurium Copper
High strength-to-weight components: Grade 5 Titanium
Robotics CNC Machined Parts Tolerances & Specifications
Robotic components often require precise control of dimensions, hole positions, shaft fits, concentricity and mounting surfaces to ensure accurate assembly and reliable motion. We support tight tolerances for shafts, pins, bearing seats, housings, brackets and other precision robotic parts.
| Specification | Typical Capability |
|---|---|
| Linear Tolerance | ±0.01 mm |
| Precision Tolerance | ±0.005 mm |
| Hole Diameter Tolerance | ±0.01 mm |
| Shaft Diameter Tolerance | ±0.01 mm |
| Hole Position | ±0.01–0.03 mm |
| Concentricity | 0.01–0.03 mm |
| Runout | 0.01–0.03 mm |
| Flatness | 0.01–0.03 mm |
| Parallelism | 0.01–0.03 mm |
| Perpendicularity | 0.01–0.03 mm |
| Surface Roughness | Ra 0.8–3.2 μm |
| Thread Accuracy | 6H / 6g or specified thread class |
Surface Finishes for Robotic Components
Surface finishing can improve wear resistance, corrosion protection, appearance and assembly performance of CNC machined robotic components. We offer multiple finishing options for robot arms, joints, housings, brackets, end effectors and precision motion parts.
| Surface Finish | Typical Materials | Robotics Applications |
|---|---|---|
| Anodizing | Aluminum 6061-T6, 7075-T6 | Robot arms, brackets, housings |
| Hard Anodizing | Aluminum 6061-T6, 7075-T6 | Joint components, wear surfaces |
| Bead Blasting | Aluminum, Stainless Steel | Housings, covers, end effectors |
| Brushing | Aluminum, Stainless Steel | Covers, panels, visible components |
| Polishing | Stainless Steel, Aluminum, Brass | Precision and cosmetic components |
| Passivation | Stainless Steel 304, 316L, 17-4 PH | Shafts, joints, end effectors |
| Electroless Nickel Plating | Steel, Aluminum, Copper Alloys | Shafts, precision housings, wear parts |
| Black Oxide | Carbon Steel, Alloy Steel | Shafts, pins, mechanical components |
| Zinc Plating | Carbon Steel, Alloy Steel | Brackets, fastener-related components |
| Powder Coating | Aluminum, Steel | Robot frames, brackets, housings |
Finish Options for Different Robotics Parts
Robot Arms & Brackets: Anodizing, Hard Anodizing, Powder Coating
Robot Joints & Shafts: Hard Anodizing, Electroless Nickel, Black Oxide, Passivation
End Effectors: Anodizing, Bead Blasting, Passivation
Housings & Covers: Anodizing, Bead Blasting, Brushing, Powder Coating
Bushings & Precision Parts: Polishing, Electroless Nickel Plating
Robotics Applications & Components
We manufacture custom CNC machined components for different robotic systems, supporting motion, positioning, gripping, sensing and structural assemblies.
| Robotics Application | Typical CNC Machined Components |
|---|---|
| Industrial Robots | Arm Links, Joint Housings, Shafts, Flanges, Mounting Plates |
| Collaborative Robots (Cobots) | Joint Parts, Lightweight Housings, Sensor Brackets, End-Effector Adapters |
| Robotic Arms | Arm Components, Bearing Seats, Shafts, Bushings, Structural Brackets |
| Robot Joints & Actuators | Joint Housings, Drive Shafts, Bearing Seats, Spacers, Flanges |
| Robotic End Effectors | Gripper Bodies, Fingers, Tooling Plates, Adapters, Mounting Brackets |
| AGV & AMR Robots | Wheel Hubs, Motor Mounts, Sensor Brackets, Shafts, Chassis Components |
| Pick-and-Place Systems | Mounting Plates, Guide Components, Shafts, Pins, Gripper Parts |
| Automated Production Equipment | Fixtures, Brackets, Housings, Connector Plates, Custom Mechanical Parts |
CNC Machining for Robotic Joints & Motion Components
Robotic joints and motion assemblies require precise control of shaft diameters, bearing bores, concentricity, runout and mounting interfaces. We CNC machine custom components for rotary joints, actuators and robotic motion systems.
| Component | Typical Parts | Key Requirements |
|---|---|---|
| Joint Housings | Motor housings, bearing housings | Bore accuracy, concentricity, flatness |
| Drive Shafts | Servo shafts, output shafts | Diameter tolerance, runout, surface finish |
| Bearing Seats | Bearing bores, bearing carriers | Bore tolerance, roundness, concentricity |
| Bushings & Spacers | Sleeves, precision spacers | Dimensional accuracy, fit and wear resistance |
| Joint Flanges | Interface flanges, mounting flanges | Hole position, flatness, bolt patterns |
| Gear Housings | Gearbox housings, transmission covers | Positional accuracy, alignment, sealing surfaces |
| Actuator Components | Motor mounts, couplings, adapters | Concentricity, alignment and mounting accuracy |
Key Machining Capabilities
CNC Turning for shafts, pins, bushings and cylindrical components
CNC Milling for housings, flanges and mounting features
5-Axis Machining for complex joint housings and multi-sided components
Grinding for precision shafts and bearing surfaces
CMM Inspection for critical dimensions, hole positions and geometric tolerances
From CAD Drawing to Finished Robotics Parts

Robotics CNC Machining Quality Control

Material Verification

Material Verification

Dimensional Inspection

GD&T Inspection

Thread Inspection

Surface Finish Inspection

Final Inspection

Packaging Inspection
Precision robotic components require consistent control of critical dimensions, hole positions, shaft fits, concentricity and geometric tolerances. Our inspection process covers incoming materials, in-process machining and final inspection.
| Quality Control Item | Inspection Method / Equipment | Purpose |
|---|---|---|
| Dimensional Inspection | CMM, Micrometers, Calipers | Verify critical dimensions |
| Hole Diameter & Position | CMM, Bore Gauges, Pin Gauges | Control mounting and bearing holes |
| Shaft Diameter | Micrometers, CMM | Verify shaft fits |
| Concentricity & Runout | CMM, Dial Indicators | Control rotary components |
| Flatness & Parallelism | CMM, Surface Plate | Ensure accurate mating surfaces |
| Surface Roughness | Roughness Tester | Verify specified surface finish |
| Thread Inspection | Thread Gauges | Verify internal and external threads |
| Material Verification | Material Certificate / Spectrometer | Confirm material and grade |
| Final Inspection | CMM & Inspection Report | Verify parts before shipment |
Quality Documentation
Inspection documentation can include:
Dimensional Inspection Reports
CMM Reports
Material Certificates
Surface Finish Reports
Final Inspection Records
Critical features such as bearing bores, shaft diameters, mounting-hole patterns, concentricity and runout can be specifically identified and inspected according to your drawings.
Prototype & Low-Volume Robotics CNC Machining
From a single prototype to repeat production, we provide CNC machining for robot development, functional testing, pilot builds and low-volume production. Parts are manufactured from your 2D drawings or 3D CAD files with the required materials, tolerances and surface finishes.
| Production Stage | Typical Quantity | Suitable For |
|---|---|---|
| Prototype | 1–10 pcs | Design verification, functional testing |
| Small Batch | 10–100 pcs | Engineering validation, pilot builds |
| Low Volume | 100–1,000 pcs | Pre-production and initial production |
| Repeat Production | 1,000+ pcs | Ongoing robotic equipment production |
Why Use CNC Machining for Robotics Prototypes?
Fast Design Iteration - Modify and produce new versions without tooling investment.
Functional Metal Parts - Test components using the same materials and finishes intended for production.
Complex Geometries - CNC milling, 5-axis machining and turning support intricate robotic components.
Consistent Repeatability - Maintain dimensional consistency from prototypes to production batches.
Flexible Quantities - Suitable for one-off prototypes as well as recurring low-volume orders.
Robotics CNC Machining for Custom & OEM Parts
We manufacture custom and OEM CNC machined parts for robotic arms, joints, actuators, end effectors, AGV/AMR systems and automation equipment. Parts are produced directly from your 2D drawings, 3D CAD files or samples.
| Custom Capability | Details |
|---|---|
| Custom Dimensions | Parts manufactured to specified dimensions and tolerances |
| Material Selection | Aluminum, Stainless Steel, Steel, Brass, Bronze, Copper & Titanium |
| Complex Geometries | CNC milling, 5-axis machining, turning and turn-mill |
| Surface Finishing | Anodizing, plating, passivation, polishing, bead blasting and more |
| Inspection Requirements | CMM inspection, dimensional reports and material verification |
| Production Volume | Prototype, low-volume and repeat production |
| Custom Packaging | Individual protection, partitioned packaging and export packing |
CAD Files & Drawings We Accept
STEP / STP
IGES / IGS
DXF
DWG
PDF Technical Drawings
Other common 2D/3D CAD formats
Packaging & Delivery for Robotics CNC Machined Parts

| Packaging Option | Application |
|---|---|
| PE Bags / Protective Film | Protect machined surfaces from scratches and dust |
| Foam Inserts | Individual protection for precision components |
| Partitioned Cartons | Separate multiple small parts and prevent collision |
| Custom Trays | Organize pins, bushings and precision components |
| Export Cartons | Secure packaging for standard shipments |
| Wooden Cases / Pallets | Heavy, large or bulk robotic components |
Typical Lead Times
| Order Type | Typical Lead Time |
|---|---|
| Prototype | 5–10 working days |
| Small Batch | 7–15 working days |
| Low-Volume Production | 10–20 working days |
| Repeat Production | 10–25 working days |
FAQ
1. What types of robotic parts can you CNC machine?
We manufacture robotic arm components, joint housings, shafts, pins, bushings, spacers, flanges, mounting brackets, end-effector components, housings and custom motion components.
2. What materials can you use for robotics CNC parts?
Common materials include 6061-T6, 7075-T6, 6082-T6 aluminum, 304 and 316L stainless steel, 4140 and 4340 alloy steel, C36000 brass, C93200 bronze, C11000 copper and Ti-6Al-4V Grade 5 titanium.
3. What CNC machining processes do you offer for robotic components?
We offer CNC turning, CNC milling, 5-axis machining, Swiss CNC machining, CNC turn-mill and grinding for different robotic component geometries.
4. What tolerances can you achieve?
Typical CNC machining tolerances can reach ±0.01 mm, with precision features down to approximately ±0.005 mm depending on part geometry, material, size and machining process.
5. Can you machine robotic joint components?
Yes. We manufacture joint housings, bearing seats, drive shafts, flanges, bushings, spacers and actuator components, with control of critical features such as bore diameter, concentricity and runout.
6. Can you manufacture parts from 3D CAD files?
Yes. We can manufacture parts from STEP, STP, IGES, IGS, DXF, DWG and PDF technical drawings.
7. Do you support robotics prototypes and low-volume production?
Yes. We support single prototypes, small batches, low-volume production and repeat orders, making CNC machining suitable for robotics development and pilot production.
8. Can you provide inspection reports?
Yes. Depending on project requirements, we can provide dimensional inspection reports, CMM reports, material certificates and other quality documentation.
9. What surface finishes are available?
Available finishes include anodizing, hard anodizing, bead blasting, polishing, brushing, passivation, electroless nickel plating, black oxide, zinc plating and powder coating.
10. Can you manufacture custom OEM robotic components?
Yes. We manufacture custom OEM parts according to your drawings, CAD files, material specifications, tolerances and surface finishing requirements.
11. What is the typical lead time for robotics CNC parts?
Typical lead times are 5–10 working days for prototypes, 7–15 working days for small batches and 10–25 working days for repeat production, depending on complexity, quantity and finishing requirements.
12. How do I get a quote for custom robotics CNC parts?
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