Robotics · Prototype to Pilot

Rapid Prototyping & Low-Volume Parts for Robotics Development

Precision CNC Machining, SLA Prototyping, Finishing, Assembly and Inspection — From EVT to Pilot Build.

Jierchen helps robotics and hardware teams turn designs into real, testable parts — from rapid prototypes to low-volume pilot builds. Based in Taiwan and ISO 9001 certified, we machine, print, finish, assemble and inspect under one roof, so your iteration loop stays short and your data stays clean.

Since 1985 · 41 yearsISO 9001 · Cert. 10319/0D-U-N-S® registered10+ countries servedNo MOQ — from 1 pc
What we build

Parts we machine and print for robots.

Structural, precision and appearance parts for humanoid, mobile, industrial and collaborative robots — in true engineering materials, ready for real testing.

Robot links & structural brackets

AL6061 / AL7075 machined load-bearing structures with controlled datums and CMM-verified bores.

Joint prototype parts

Shaft-and-bore interfaces, bearing seats and dowel fits machined to local best-case ±0.01 mm.

Sensor mounts

Rigid, lightweight mounts with quick-turn revisions as your sensor stack changes.

Camera & LiDAR housings

Machined or SLA housings with fine cosmetic finishing, painting and laser-marked details.

Battery enclosures

Sealed machined enclosures with inserts, gasket grooves and anodized surfaces.

End-effector & gripper prototypes

Mixed CNC + SLA builds for fast functional trials of fingers, jaws and tooling.

Robot hand mechanical parts

Small, precise linkages and pivots for dexterous hand and actuator development.

Fixtures & test jigs

Bench, calibration and EVT-line jigs built to your gauge and repeatability needs.

EVT / DVT modification parts

Fast re-machining of revised CAD so design changes reach your test bench in days.

How we support your build stages

One partner from Prototype to Pilot.

Choose the process by build stage and quantity — the design never leaves the building between stages.

PROTOTYPE

SLA 3D printing

1–10 pcs · 1–3 days. Form, fit and concept checks on Formlabs Form 4.

EVT

CNC machining

1–100 pcs · 3–7 days. Functional metal & plastic parts in true engineering materials.

DVT

Silicone vacuum casting

10–100 pcs · 5–10 days. Production-like PU parts for field and reliability testing.

PILOT

Steel-mold injection

500+ pcs · 4–8 weeks incl. tooling. Repeatable parts for pilot builds and early production.

Proven in robotics

Real robot hardware, measured — never guessed.

CNC-machined dynamic walking robot leg assembly by JIERCHEN

Dynamic Walking Leg Assembly | CNC-Machined Robotics Prototype

A fully articulated 6-DOF bipedal robot leg assembly featuring CNC-machined AL 6061 load-bearing joints, built for a U.S. robotics research program. Critical shaft-and-bore interfaces were machined and CMM-verified to ±0.001 inch fit tolerance, ensuring precise alignment and reliable mechanical movement.

Working with overseas teams

Built for engineering teams in the US, Japan and Europe.

You talk directly to the engineers who machine your parts — no hand-offs, no translation loss, export-ready documentation.

QualityISO 9001 · CMM-verified · inspection reports
Speed24-hour quotes · SLA in days · fast FAI
CommunicationEnglish · 日本語 · 中文, direct with engineers
One-stopMachining → finishing → assembly → inspection
FAQ

Robotics teams ask us.

How fast can I get robotics prototype parts?

For qualified projects with complete CAD files, SLA parts ship in as fast as 1–3 days and CNC-machined parts in 3–7 days, with engineer-reviewed quotations as fast as 24 hours. EVT and DVT revision rounds are re-quoted quickly so your iteration loop stays short.

Can you hold the fits and tolerances robot joints need?

Yes. Our general machining tolerances follow ISO 2768-f, and critical shaft-and-bore interfaces, bearing seats and dowel fits can be machined to local best-case tolerances down to ±0.01 mm where the geometry allows. Critical dimensions are CMM-verified and dimensional inspection reports are available on request.

Do you support EVT / DVT iteration and small pilot builds?

That is our core use case. There is no minimum order quantity — we build from 1 piece, re-machine revised CAD quickly, and scale the same design through silicone vacuum casting (10–100 pcs) to steel-mold injection for pilot and production quantities, all under one roof.

Do you work with robotics startups and sign NDAs?

Yes. Many of our customers are robotics startups and university research teams. Your files remain your property, we are glad to sign an NDA before reviewing your CAD, and we communicate directly with your engineers in English, Japanese or Chinese.

Send us the part your robot is waiting for.

CAD in, engineer-reviewed quote back — as fast as 24 hours.

Upload your CAD →