Subcontract precision machining · Fenggang, Dongguan, China
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Robotics & UAV

Structural, joint and drivetrain components for robot arms, mobile robots and unmanned aerial vehicles — where weight and stiffness both matter.

Robotics and UAV work is driven by weight. Every bracket that is heavier than it needs to be costs payload, and every joint that flexes under load costs accuracy — so the parts tend to be small, thin-walled and unforgiving on tolerance.

That is geometry we can hold: thin walls supported properly rather than clamped and hoped for, bores ground when a bearing has to seat true, and splines or gear teeth cut where a drivetrain needs them. Because turning, milling, gear cutting, grinding and EDM are in one building, a joint that needs a milled body and a ground bearing seat does not get re-datumed at a second supplier.

What this sector checks is part-to-part consistency on a small batch and whether the second revision actually matches the first. Fixtures built for the revision, programs kept against the part number, and first-article inspection before the run continues are how that is answered.

Typical parts

What we make for this sector.

Arm links, joint bodies and pivot components

Bearing housings and rotor mounts

Shafts, splines and small gear components

Motor mounts and adaptor plates

Airframe brackets, ribs and structural fittings

Gripper, end-effector and payload-mount parts

What matters here

The four things this industry actually checks.

Thin walls

Lightweight geometry machined without distortion — supported, not clamped hard.

Weight-critical parts

Material removed to drawing rather than to whatever the blank allows.

Small batches

Ten-off jobs and revision changes are normal work here, not an exception.

Assembly-ready

Parts delivered deburred and clean, with anodising managed for visible parts.

Capabilities applied

Processes this sector usually calls for.

CNC Turning

Turning, mill-turn and small-to-medium batch production of round parts.

CNC Milling

3-, 4- and 5-axis milling of complex parts, pockets, contours and fixtures.

Gear Hobbing & Shaping

Spur, helical and internal gears cut on hobbing and shaping machines.

OD Grinding

External cylindrical grinding for roundness, straightness and surface finish.

ID Grinding

Internal grinding of bores, sleeves and bearing seats.

Wire EDM

Wire EDM for sharp internal corners, hardened material and thin walls.

Questions

What buyers in this sector ask us.

Do you sign NDAs before receiving drawings?
Yes. Send yours and we will sign it before any file changes hands. Customer names and part numbers are never published on this site.
Can you supply the documentation this sector requires?
First-article inspection reports, material certificates and dimensional reports are issued as standard, from the same facility that machined the parts. Where a sector asks for something more specific — a hardness record on heat-treated parts, a defined sampling plan, or your own report format — tell us at quotation stage and we will confirm what we can supply before you commit to anything.
Do you work from supplied castings, forgings or bar?
Yes. We machine customer-supplied material and will inspect it on receipt so that any defect is identified before we cut, not after.

Send us a drawing. Get an engineering answer, not a price list.

Tell us the part, the material and the quantity. An engineer reviews your drawing and replies within one working day — usually with a suggestion on how to make it cheaper.