Precision CNC Parts for Robotics & Automation
RobotPartsCNC is a precision CNC machining company based in Shenzhen, China, specializing in custom machined components for robotics, automation systems, motion control equipment, and advanced mechanical products. We turn your CAD designs into reliable precision parts — from prototype to production.
- Standard Tolerance
- ±0.01 mm
- Minimum Quantity
- 1 piece
- Prototype Lead Time
- 3–7 days
- Production Volume
- 10,000+
Capabilities at a Glance
- CNC milling, turning, 5-axis and mill-turn machining
- Tight tolerances down to ±0.005 mm, Ra 0.4–3.2 μm
- Aluminum, stainless steel, titanium, brass and engineering plastics
- Anodizing, plating, passivation, black oxide and laser marking
- CMM inspection, FAIR, material and surface treatment certificates
What We Manufacture
We manufacture custom parts according to customer drawings, CAD models, and specifications. Typical robotics components include joint housings, actuator housings, gearbox and reducer housings, bearing housings, robot arm components, motor mounts, output flanges, precision shafts, base plates, brackets, gripper parts, end-effector components, sensor mounts, AMR and AGV parts, wheel hubs, LiDAR mounts, and automation fixtures.
Joints & Actuators
Robot joint housings, actuator housings, gearbox and reducer housings, bearing housings and seats.
Arms & Structures
Robot arm components, motor mounts, output flanges, precision shafts, base plates and mounting plates.
Grippers & EOAT
Robot gripper parts, gripper fingers and jaws, end-effector and EOAT components, tool changer adapters.
Sensors & Mounts
Sensor and camera mounts, LiDAR mounts, brackets and adapters for accurate, repeatable alignment.
AMR & AGV Parts
Wheel hubs, drive housings, chassis components and mobile robot structural parts.
Automation Fixtures
Custom fixtures, mounting plates, adapters and brackets for automation systems and integrators.
We support parts requiring tight tolerances, precision bores, bearing fits, thin-wall machining, complex geometries, multiple setups, and controlled surface finishes.
Robotics Applications We Serve
RobotPartsCNC supplies precision components across the robotics and automation spectrum, from early development programs to repeat production.
CNC Machining Capabilities
Multi-axis machining, precision turning and integrated finishing to support robotics components from one-off prototypes to production volumes.
| Capability | Typical Capability |
|---|---|
| CNC Milling | 3-axis, 4-axis and 5-axis |
| CNC Turning | Precision turning and live-tool machining |
| Mill-Turn | Combined turning and milling |
| Minimum Quantity | From 1 piece |
| Production Quantity | 1–10,000+ pieces |
| Standard Tolerance | ±0.01 mm |
| Tight Tolerance | Down to ±0.005 mm |
| Surface Roughness | Ra 0.4–3.2 μm |
| Maximum Milling Size | 1000 × 600 × 600 mm |
| Maximum Turning Size | Ø400 × 800 mm |
| Prototype Lead Time | 3–7 working days |
| Production Lead Time | 7–20 working days |
| File Formats | STEP, STP, IGES, X_T, DWG, DXF, PDF |
Tolerance capability depends on material, geometry, dimensions, and inspection requirements.
Materials We Machine
A wide range of metals and engineering plastics commonly used in robotics, motion control, and automation hardware.
Aluminum
- 6061-T6
- 6082-T6
- 7075-T6
- 2024
- 5052
Stainless Steel
- 303
- 304
- 316
- 17-4PH
- 440C
Carbon & Alloy Steel
- 1018
- 1045
- 4140
- 4340
- Tool steel
Other Materials
- Titanium Grade 2 & Grade 5
- Brass, Copper, Bronze
- POM / Delrin, PEEK, Nylon
- PTFE, UHMW
- ABS, Polycarbonate
Surface Finishing
Surface treatments are coordinated in-house and with trusted Shenzhen-area partners, so appearance, wear resistance, and corrosion protection stay consistent from batch to batch. Additional treatments can be arranged according to drawing requirements.
Precision & Quality Control
Inspection equipment includes CMM, optical measuring equipment, height gauges, micrometers, bore gauges, pin gauges, thread gauges, surface roughness testers, and granite inspection tables.
- Dimensional inspection reports
- First Article Inspection reports
- CMM reports
- Material certificates
- Surface treatment certificates
- Certificate of Conformance
| Finish | Typical Application |
|---|---|
| As Machined | General precision components |
| Bead Blasting | Aluminum and stainless steel |
| Anodizing | Aluminum components |
| Hard Anodizing | Wear-resistant aluminum parts |
| Electroless Nickel Plating | Aluminum and steel |
| Passivation | Stainless steel |
| Black Oxide | Steel |
| Zinc / Nickel Plating | Steel and copper alloys |
| Powder Coating | Aluminum and steel |
| Polishing / Brushing | Aluminum and stainless steel |
| Laser Marking | Identification and traceability |
Prototype to Production
RobotPartsCNC supports customers throughout the product development cycle, so you can start with a single prototype and continue into repeat production with the same supplier.
Prototype Manufacturing
Proof-of-concept parts, engineering prototypes, robot joint development, actuator testing, assembly verification, and functional testing. Prototype quantities can start from one piece.
Low-Volume Production
Flexible production for 10, 50, 100, 500, and 1,000+ pieces. Ideal for robotics startups, pilot production, new robot models, and customized automation systems.
Production Manufacturing
For repeat orders, machining processes are optimized for stable tolerances, repeatability, reduced setup time, fixture optimization, batch inspection, and lower unit cost.
DFM Support
Our engineering team reviews drawings and CAD models before manufacturing. Typical DFM issues include thin walls, deep cavities, difficult tool access, excessively tight tolerances, small internal radii, deep threaded holes, complex setups, and surface finish conflicts. When appropriate, we provide suggestions to improve manufacturability, reduce cost, and shorten lead time.
Why RobotPartsCNC
A robotics-focused manufacturing partner based in Shenzhen, China — one of the world's major centers for robotics, electronics, automation, and precision manufacturing.
Robotics-Focused
We specialize in components for robotics and automation rather than positioning ourselves as a general-purpose machine shop.
Prototype to Production
Develop prototypes and continue into low-volume or production manufacturing with the same supplier.
Flexible Quantities
We support one-piece prototypes as well as repeat production orders.
Precision Manufacturing
Complex geometry, tight tolerances, precision bores, bearing fits, and multi-axis machining.
Quality Documentation
Inspection reports, CMM reports, material certificates, and other quality documents are available according to project requirements.
Integrated Supply Chain
Anodizing, plating, heat treatment, grinding, laser marking, and assembly coordinated together.
Global Shipping
We support international shipping through DHL, FedEx, UPS, air freight, sea freight, and customer-designated forwarders.
Typical Project Parameters
A quick reference for the quantities, tolerances, sizes, and lead times we handle most often.
| Item | Typical Range |
|---|---|
| MOQ | 1 piece |
| Prototype | 1–50 pieces |
| Low-Volume Production | 50–1,000 pieces |
| Production | 1,000–10,000+ pieces |
| Standard Tolerance | ±0.01 mm |
| Tight Tolerance | ±0.005 mm |
| Surface Roughness | Ra 0.4–3.2 μm |
| Milling Capacity | Up to 1000 × 600 × 600 mm |
| Turning Capacity | Up to Ø400 × 800 mm |
| Prototype Lead Time | 3–7 working days |
| Production Lead Time | 7–20 working days |
Our Mission
To make precision robotics components easier to source, faster to develop, and more reliable to manufacture.
RobotPartsCNC aims to become a long-term manufacturing partner for robotics and automation companies worldwide. Whether you are developing a robotic joint, actuator, AMR platform, custom gripper, automation system, or a new generation of robotic equipment, we can support your project from prototype to production.
Request a Quote
Send us your project details and our engineering team will review your requirements. To quote accurately, please include:
- 3D CAD model
- 2D drawing
- Material
- Quantity
- Surface finish
- Inspection requirements
RobotPartsCNC · Shenzhen, China
Precision CNC Parts for Robotics & Automation — Prototype • Low Volume • Production