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 support robotics companies, automation integrators, engineering teams, and product developers from prototype development to low-volume and production manufacturing.
Our goal is simple: turn your CAD designs into reliable precision parts — from prototype to production.
At a Glance
- Minimum Quantity
- 1 piece
- Standard Tolerance
- ±0.01 mm
- Tight Tolerance
- ±0.005 mm
- Prototype Lead Time
- 3–7 days
Located in Shenzhen, RobotPartsCNC benefits from one of China's most developed manufacturing and supply-chain ecosystems, enabling fast engineering response, flexible production, secondary processing, and efficient international shipping.
What We Manufacture
We manufacture custom parts according to customer drawings, CAD models, and specifications. Typical robotics components include:
Joint & Actuator Housings
- Robot joint housings
- Actuator housings
- Gearbox and reducer housings
- Bearing housings and seats
Arms, Shafts & Plates
- Robot arm components
- Motor mounts
- Output flanges
- Precision shafts
- Robot base and mounting plates
Grippers & EOAT
- Robot gripper parts
- Gripper fingers and jaws
- End-effector and EOAT components
- Tool changer adapters
Mobility & Sensor Mounts
- Sensor and camera mounts
- AMR and AGV components
- Wheel hubs and drive housings
- LiDAR mounts
Automation & Fixtures
- Automation fixtures
- Brackets and adapters
- Mounting plates
Precision Requirements
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 primarily serves teams building and integrating advanced robotic systems.
CNC Machining Capabilities
A full range of multi-axis machining processes under one roof, from single prototypes to repeat production.
| 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
We machine a wide range of metals and engineering plastics commonly used in robotics.
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
Available surface treatments to meet functional, wear-resistance, and cosmetic requirements.
| 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 |
Additional treatments can be arranged according to drawing requirements.
Precision & Quality Control
Robotics components often require accurate fits and geometric tolerances. We support requirements involving true position, flatness, parallelism, perpendicularity, concentricity, runout, precision bores, bearing fits, shaft fits, thread tolerances, and surface roughness.
Quality Documentation Available
- Dimensional inspection reports
- First Article Inspection reports
- CMM reports
- Material certificates
- Surface treatment certificates
- Certificate of Conformance
- Lot traceability records
Inspection Equipment
Prototype to Production
RobotPartsCNC supports customers throughout the product development cycle — with the same supplier at every stage.
Prototype Manufacturing
Suitable for proof-of-concept parts, engineering prototypes, robot joint development, actuator testing, assembly verification, and functional testing.
Quantities can start from one piece.
Low-Volume Production
Flexible production for 10, 50, 100, 500, or 1,000+ pieces — ideal for robotics startups, pilot production, new robot models, and customized automation systems.
Production Manufacturing
For repeat orders, machining processes can be 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. When appropriate, we provide suggestions to improve manufacturability, reduce cost, and shorten lead time.
Typical DFM Issues We Address
Manufacturing in Shenzhen, China
RobotPartsCNC is based in Shenzhen, one of China's major centers for robotics, electronics, automation, and precision manufacturing. The Shenzhen and Greater Bay Area supply chain provides convenient access to:
This allows us to coordinate complete manufacturing projects efficiently while supporting both prototypes and production orders.
Why RobotPartsCNC
A manufacturing partner built specifically around robotics and automation requirements.
Robotics-Focused
We specialize in components for robotics and automation rather than positioning ourselves as a general-purpose machine shop.
Prototype to Production
Customers can 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
Our machining capabilities cover 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
Secondary processes such as anodizing, plating, heat treatment, grinding, laser marking, and assembly can be coordinated together.
Global Shipping
We support international shipping through DHL, FedEx, UPS, air freight, sea freight, and customer-designated forwarders.
Typical Project Parameters
Reference ranges for planning your robotics component project.
| 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 project.
- 3D CAD model
- 2D drawing
- Material
- Quantity
- Surface finish
- Inspection requirements
RobotPartsCNC
- Location:
- Email:
- info@robotpartscnc.com
- Phone:
- WhatsApp:
Prototype • Low Volume • Production