Precision parts.
Six processes.
One partner.
KUSLA Prototype manufactures engineering-grade prototypes and low-volume production parts from our 10,000 m² facility in Suzhou, China. CNC machining, 3D printing, sheet metal, injection molding, urethane casting, and diamond turning — all under one roof.
Injection molding
Rapid aluminum and steel tooling. Bridge production from 50 to 10,000+ units. Insert and overmolding available.
15-day rapid tooling → 05Urethane casting
Silicone molds from SLA masters. Production-grade surface finish for low-volume runs under 100 pcs.
5-day delivery → 06Diamond turning
Ultra-precision optics. Aspheric, spherical, and freeform surfaces down to 4 nm RMS roughness.
Explore optics →From file to finished part in four steps
Upload
Send your STEP, IGES, or STL file. We accept most 3D CAD formats.
DFM review
Our engineers review your design for manufacturability and quote within hours.
Manufacture
Production begins in our ISO 9001 certified facility with 200+ machines.
Deliver
QC inspection, surface finishing, and worldwide express shipping.
Machine-Ready Stock, Expert Guidance
From aerospace-grade titanium to FDA-compliant plastics — KUSLA Prototype machines 60+ alloys and polymers, each with documented process parameters and tolerance data.
6061, 7075, 5052, 2024 — the workhorse of prototyping. Fast cycle times, excellent anodizing results, tight tolerances to ±0.01 mm.
303, 304, 316L, 17-4PH — corrosion-resistant grades for medical, food, and marine applications. Passivated and electro-polished in-house.
Grade 2, Grade 5 (Ti-6Al-4V) — high strength-to-weight for aerospace and medical implants. Dedicated tooling and coolant strategies.
Delrin, Nylon, PEEK, Polycarbonate, Acrylic — FDA and USP Class VI grades available. No stress-whitening, no surface cracking.
C36000 free-machining brass, C11000 ETP copper — superior conductivity and machinability for connectors, heatsinks, and RF components.
Inconel 718, Monel 400, Invar 36, Kovar, Tungsten — extreme-environment alloys for aerospace turbine, semiconductor, and defense applications.
Engineering-grade parts for demanding sectors
Automotive
Lighting prototypes, structural test parts, and EV components.
Medical devices
Surgical instrument housings, implant prototypes, and Class II device enclosures.
Aerospace
Flight-critical components, turbine housings, and optics mounting brackets.
Robotics & more
Consumer electronics, energy, and industrial automation parts.
Every component was perfect. During the review meeting with our customer, nobody could find a problem. First time we've had that kind of feedback.
Built on Audited Standards
Every part ships with full dimensional inspection. KUSLA Prototype holds internationally recognized certifications across quality, medical, and data security.
Quality management system — process control, traceability, and continuous improvement across all manufacturing operations.
Medical device quality standard — validated processes and documentation for FDA and CE-regulated components.
Controlled technical data handled per U.S. export regulations — secure file transfer and restricted access protocols.
Mutual NDA signed before project start. IP ownership stays with the customer — no exceptions, no grey areas.