Robotics CNC Machining, Structural precision for moving systems
Ginwate manufactures structural and motion components for robotics manufacturers worldwide, collaborative robots (cobots), SCARA, delta, 6-axis articulated, and humanoid robotics platforms. Robot arm links, end-effector frames, harmonic drive adapter flanges, encoder housings, components that must be lightweight, dimensionally precise, and ready for direct assembly without hand-fitting.
What robotics OEMs and component suppliers (cobots, SCARA, delta, humanoid, mobile) actually need
The pain points we hear from real customers in this segment, sorted by frequency. If two or more of these resonate with you, we should talk.
Lightweight + structurally precise (apparent contradiction)
Robot links need to be light to reduce inertia, but precise enough to maintain end-effector positioning under load. Material selection (7075 vs Ti) and structural design require optimization.
Repeatability across multi-piece assemblies
When 6 link components stack into a 6-axis arm, individual tolerance variations compound. End-of-arm precision requires per-piece tolerances tighter than the final spec.
Direct-assembly fits eliminate hand-fitting
Customer's assembly line needs parts that drop in. Press-fit shaft holes, slip-fit joint surfaces, threaded pad locations, all must hit nominal dimensions every time.
Surface finish for sealed mechanisms
Encoder housings, drive enclosures, gear cases, all require surface finish controls. Ra 0.4 µm or finer where seals contact, with clean transitions to fit shaft features.
Custom geometries for emerging robot architectures
Humanoid robot manufacturers (Boston Dynamics, Figure, Tesla Optimus, Unitree) often require unique geometries with no standard equivalent. Direct CAD-to-quote with engineering review is critical.
Volume scaling for production robot models
Robot manufacturers shipping at high volume (Universal Robots, Doosan Robotics, ABB) need supply chain partners who can scale from prototype to 10,000+ units/year without quality drift.
How we solve those problems
Direct mapping from challenge → capability. Every claim verifiable.
5-axis precision for complex link geometries
18 DMG MORI / Mazak 5-axis machining centers, capable of complex link geometry in single setup, eliminating multi-fixture tolerance stack-up.
Hard anodizing Type III for cobot links
Wear-resistant Type III hard anodizing (25-50 µm) on aluminum links provides scratch-resistant, professional cosmetic finish. Compatible with assembly cycles and operator handling.
Direct-assembly tolerance hold
Bore alignment ±0.005 mm tolerance hold across paired components. Press-fit bores within 0.01 mm tolerance bands. Slip-fit clearance maintained to 0.02 mm.
Co-engineering for novel geometries
Direct engineering collaboration with customer's design team. DFM suggestions on component split-line locations, fastener access, assembly orientation, weight reduction opportunities.
Carbon fiber + aluminum hybrid component machining
When weight matters most, we machine pre-cured carbon fiber composites and bond/insert metallic features. Suited for humanoid robot lightweight link applications.
Production volume of 10,000+ units/year
Production cell allocation for high-volume robot manufacturing programs. Dedicated tooling investment justified by production lifecycle. SPC on critical characteristics.
Materials we work with for this industry
7075-T651 Aluminum
Highest strength-to-weight aluminum for primary robot links. Lower density than steel, ~3x stronger than 6061. Good fatigue resistance under cyclic loading.
Titanium Ti-6Al-4V (Grade 5)
Premium high-strength material for humanoid robot critical components. Outstanding strength-to-weight, biocompatible (relevant for collaborative robots in healthcare settings).
6061-T6 Aluminum (hard anodized)
Cost-effective for non-critical structural and decorative components. Hard anodizing Type III provides cosmetic + wear-resistant finish.
PEEK 450CA30 (CF-reinforced 30%)
Lightweight bearing applications, gripper components requiring stiffness without metal-on-metal contact. Excellent vibration damping.
POM-H (Delrin)
Self-lubricating bearing surfaces, gripper fingers, low-friction sliding components. Hydrolysis-resistant version (POM-C) for humid environments.
Carbon Fiber Composite (pre-cured)
Ultimate lightweight applications, humanoid robot arms where every gram matters. Machined via specialized router carbide tools to maintain fiber integrity.
Processes & equipment
5-axis CNC milling (DMG MORI DMU 80)
Complex 3D robot link geometries in single setup. Eliminates re-fixture tolerance stack-up.
Hard anodizing Type III
25-50 µm hardcoat for aluminum cobot links. Wear-resistant + visually professional.
Wire EDM for thin-wall features
Intricate gripper finger profiles, encoder slot features. Ra 0.4 µm finish achievable on hardened materials.
Thread milling for high-precision fastener locations
Repeatable thread engagement quality vs. tap-cutting. Used on lightweight aluminum where tap stress concentration is a fatigue concern.
CMM verification of assembly fit
Paired components verified together on CMM to ensure assembly fit. Saves customer's assembly-line trouble.
Sub-assembly: bearing pressing, threadlock application
Optional value-add: we receive and press in bearings, apply threadlocker per customer specification, ship as sub-assembled module.
Compliance you can audit
Specific standards relevant to Robotics, with the why behind each.
ISO 9001:2015 + ISO 14001:2015
Standard quality + environmental management certification baseline.
EN 10204 3.1 material certificates
Material traceability on all critical structural components.
Cp / Cpk capability studies on critical characteristics
Statistical proof of dimensional consistency on customer-designated critical dimensions.
Assembly-fit verification per paired-component matching
When required, we verify paired components together on CMM to ensure first-pass assembly success.
Operator workplace 5S compliance
Visual workplace organization with traceable component tracking. Lost-piece prevention via numbered work stations.
Vibration testing support
Sample components subjected to customer-defined vibration profile testing through partner test labs. Reports per IEC 60068-2-6 standards.
What customers in this industry order from us
Real part categories with example tolerances. Send a drawing and we'll confirm production feasibility within 24 hours.
Robot arm links (cobot/industrial)
±0.005 mm bore alignment, hard anodizedDrive components
±0.005 mm, Ra 0.4 µm seal surfacesEncoder & sensor housings
±0.01 mm, EMI-shielded optionsEnd-effectors & grippers
±0.01 mm, surface finish controlledMobile robot structural
±0.01 mm, IP-rating sealedHumanoid robot components
±0.005 mm, weight-optimizedQuestions robotics OEMs and component suppliers (cobots, SCARA, delta, humanoid, mobile) actually ask
What's your typical robotics prototype lead time?+
Can you do paired-component assembly-fit verification?+
Do you machine carbon fiber composites for humanoid robots?+
How do you handle volume scaling from prototype to 10,000+ units/year?+
What surface treatments are available for cobot aesthetic links?+
Can you help with EMI shielding for sensor housings?+
Other industries we serve
Ready to talk robotics programs?
Send a drawing and a target quantity. We'll respond within 12 hours with a feasibility assessment, recommended material, and target price.