High Precision & Repeatability

Robots rely on precise motion to perform tasks. Even micron-level errors in components can accumulate through the joint chain, leading to significant end-position inaccuracy. We ensure every part meets the strict precision requirements to guarantee your robot’s repeatability.

Lightweight Structures

To improve speed, payload, and energy efficiency, robotic parts need to be as light as possible without sacrificing strength. This often requires complex thin-wall and hollow structures, which demand advanced machining expertise to avoid deformation.

Tight Tolerance Assemblies

Robotic joints and transmission systems require perfect fit between multiple components. We perform tolerance stack-up analysis upfront to ensure all parts fit together seamlessly, eliminating assembly headaches and ensuring smooth motion.

Wear Resistance & Durability

Robotic parts often undergo millions of motion cycles. We work with you to select the right materials and surface treatments to ensure your parts can withstand long-term, high-frequency use without wear or performance degradation.

Robotics Components We Manufacture

We specialize in manufacturing high-precision components that power the entire robotics ecosystem, from industrial robotic arms to collaborative robots and humanoid robots. Our capabilities cover all critical parts that require strict dimensional accuracy and reliability:

• Robot Arms (Structural Parts): Lightweight yet rigid aluminum and magnesium alloy arms with complex hollow structures, optimized for high payload-to-weight ratio.
• Gear Housings & Reducer Cases: Precision-machined harmonic drive and planetary reducer housings with tight bore tolerances to ensure smooth power transmission.
• Motor Mounts & Flanges: Rigid mounting components with flatness control to eliminate motor vibration and ensure alignment.
• Sensor Brackets & Mounts: Miniature, high-stability brackets for vision systems, force sensors, and LiDAR, ensuring long-term positioning stability.
• Precision Shafts & Pins: Ground and polished shafts with cylindricity control down to 0.002mm, critical for joint rotation accuracy.
• End Effector Components: Custom gripper parts, tool changers, and adapter plates for various automation applications.

CNC Machining Capabilities for Robotics

With 20 years of experience in precision manufacturing, we have developed specialized capabilities to meet the unique requirements of robotics components. Our advanced equipment and process expertise ensure we can handle the most complex parts:

• 3/4/5-Axis CNC Machining: Our 5-axis simultaneous machining centers enable one-setup machining of complex multi-face parts, eliminating multiple clamping errors. This is critical for complex robot joint housings and arm structures, reducing lead time by 40% and improving accuracy.
• Ultra-Tight Tolerance Control: We consistently achieve tolerances as tight as ±0.005mm (±0.0002″), and even ±0.002mm for critical features, which ensures the motion precision of your robot, complying with ISO 286 tolerance standards.
• Multi-Part Assembly Accuracy: We not only machine individual parts, but also provide pre-assembly validation to ensure all parts fit together perfectly, eliminating assembly issues for your team.
• Surface Finishing: We offer a full range of surface treatments including anodizing, polishing, nitriding, and PVD coating, to improve wear resistance, corrosion resistance, and surface smoothness for moving parts.

From Prototype to Production

As your long-term strategic supplier, we support your entire product lifecycle, from early R&D prototyping to full mass production, with seamless transition to ensure consistency:

• Rapid Prototyping: 1-3 day rapid turnaround for prototype parts, helping you validate your design quickly and accelerate your R&D cycle. We support low-volume runs of 1-10 parts with the same precision as production.
• Small Batch Production: Flexible production capacity for pilot runs of 10-1000 parts, perfect for your pre-mass production testing and market validation.
• Mass Production: Scalable production capacity for volumes up to 100,000+ parts per month, with stable supply chain and consistent quality to support your mass market deployment.
• Seamless Transition: We retain all your process parameters and tooling, so you can scale from prototype to mass production without re-qualification, saving your time and cost.

Aluminum Alloys (6061, 7075, ALUMEC100)

The most popular choice for robotic structural parts. With a density of 2.7g/cm³ and excellent strength-to-weight ratio, it reduces overall arm inertia while maintaining sufficient rigidity.

• Tensile Strength: 310MPa (6061) / 570MPa (7075)
• Lightweight, cost-effective, and easy to anodize for corrosion resistance
• Ideal for robot arms, brackets, and non-heavy-load components

Magnesium Alloys

The ultimate lightweight solution for high-speed robotics. With a density of only 1.74g/cm³, it is 33% lighter than aluminum and 75% lighter than steel.

• Excellent vibration damping to protect sensitive electronics
• High specific strength, ideal for high-speed moving parts
• Reduces robot energy consumption by up to 20% (test data for reference only)

Titanium Alloy (Ti6Al4V / TC4)

Premium material for heavy-duty and humanoid robot joints. It offers exceptional strength, fatigue resistance, and biocompatibility for medical robots.

• Tensile Strength: 900MPa, with excellent wear and corrosion resistance
• Stable performance under extreme temperatures
• Achieves IT3 grade tooth profile accuracy for core joint components

Engineering Plastics (PEEK, POM, ABS)

Lightweight, self-lubricating materials for low-load, high-speed components. PEEK is especially popular for collaborative robot fingers.

• PEEK density: 1.3g/cm³, 50% lighter than aluminum
• Self-lubricating, low wear rate for high-frequency motion
• Can reduce joint group weight by up to 47% (application data for reference only)

Quality Assurance for Robotics Parts

For robotics parts, even a tiny dimensional error can be amplified through the serial motion chain, leading to significant accuracy loss of the entire machine. We implement a strict quality control system to ensure 100% consistency of every part:

• Full Dimensional Inspection: All critical dimensions are inspected by CNC CMM (Coordinate Measuring Machine) complying with ISO 10360 standard, with full dimensional reports provided for every batch.
• Process Control: We conduct SPC (Statistical Process Control) for mass production, ensuring Cpk > 1.33 for all critical characteristics, which guarantees long-term consistency (test data for reference only).
• Material Certification: We provide full material traceability, with mill certificates for all raw materials, ensuring material performance meets your requirements.
• Compliance Standards: Our quality system is certified to ISO 9001:2015, and we can support PPAP, FAIR, and other automotive/industrial standard documentation as required.

6-Axis Industrial Robot Joint Bearing Housing Project

Project Background: A leading industrial robot OEM was developing a new high-precision welding robot, requiring joint bearing housings that could support ±0.02mm repeat positioning accuracy of the entire robot.

Challenges:

• The part had thin-wall structures (only 2.5mm thickness) that were prone to deformation during machining
• Tight tolerance requirements: ±0.005mm for bearing bore, with parallelism of 0.003mm
• Previous supplier only achieved 85% yield rate, with 14-day lead time, which could not meet the client’s R&D schedule

Our Solution:

• Adopted layered cutting process for thin-wall sections, adjusted cutting sequence to reduce stress deformation
• Customized fixture to support the part during machining, eliminating clamping deformation
• AI-optimized tool path to reduce cutting force and vibration
• In-process temperature compensation to control thermal expansion

Results:

• Yield rate improved to 99.5%
• Lead time reduced from 14 days to 7 days
• The final robot achieved ±0.018mm repeat positioning accuracy, exceeding client’s expectation

Can you support robotics prototyping?

Yes! We offer rapid prototyping services for robotics parts, with 1-3 day turnaround. We use the same CNC equipment and quality control for prototypes as for production, so you can test with functional, production-grade parts, not just look-alike samples.

How do you ensure precision for moving parts?

We use a combination of high-precision 5-axis machines, thermal compensation systems, and in-process inspection. We also perform tolerance stack-up analysis to ensure that errors do not accumulate through the assembly. All critical parts are inspected by CMM to verify dimensional accuracy before delivery.

Do you support assembly requirements?

Absolutely. We can provide pre-assembled sub-assemblies, such as joint modules, to reduce your assembly workload. We also perform fit testing for all mating parts to ensure they fit together perfectly, so you don’t have to deal with fitting issues on your end.

What tolerances can you achieve for robotics parts?

We can consistently achieve tolerances as tight as ±0.005mm (±0.0002″) for general parts, and down to ±0.002mm for critical features like bearing bores. We work with you to apply the right tolerances to different features to balance performance and cost.

Can you sign NDA for our project?

Yes, we take intellectual property very seriously. We can sign standard NDAs or custom NDAs to protect your design and project information. All our staff are trained on confidentiality, and we have strict access control for your project data.