# Medical Instrument Components (Non-Sterile) — CNC Machined to Drawing

> Sinbo Precision (sinbo-machining.com) machines 22 medical instrument components to customer drawing in Dongguan, China — quotation within 48 hours, first prototypes in 7–15 days, from 1 piece. IATF 16949 & ISO 9001:2015 certified.

Sinbo supplies machined components for medical instruments and laboratory equipment strictly as a component manufacturer: non-sterile, to customer drawings, delivered clean (optional hydrocarbon washing) but not sterilized and not packaged as medical devices. Typical materials are 303/316L stainless, brass and PEEK, with full material traceability and FAI documentation per lot.

## 22 Medical Instrument Components (Non-Sterile) We Machine

- **Instrument handle, knurled** — 303 stainless, straight or diamond knurl.
- **Instrument ferrule** — 316L, weld-ready ends.
- **Luer connector body** — brass/316L, 6% taper per ISO 594 geometry.
- **Luer lock nut** — 316L/brass, thread concentric to taper.
- **Luer plug** — 303/316L, capped taper.
- **Tube clamp jaw** — 316L, smooth radiused faces.
- **Ratchet wheel** — 316L milled, tooth profile ±0.02 mm.
- **Knurled knob cap** — 303 stainless, hand-grip finish.
- **Instrument collet nut** — 316L, thread + collet taper.
- **Dental instrument tip holder** — 303 stainless, Swiss-turned.
- **Centrifuge adapter** — aluminum 6061, balanced geometry.
- **Peristaltic pump fitting** — 316L/PP, smooth flow path.
- **Cassette guide, ground** — 316L, edge radii controlled.
- **Borescope sleeve** — 303 stainless, ID ±0.01 mm.
- **Attachment pin, ground** — hardened 316 option, ±0.005 mm.
- **Instrument guide sleeve, hardened** — bore ground, wear face.
- **Depth stop** — 316L, lock-screw pocket.
- **Probe housing (diagnostic)** — 303/316L, sensor-bore concentric.
- **Equipment sensor boss** — 316L, O-ring face.
- **Equipment ground shaft** — bearing seats ground, clean finish.
- **Handpiece body, turned blank** — 303 stainless blank for finishing.
- **Case hinge pin** — 303 stainless, ground + polished.

## Typical Materials & Tolerances

| Parameter | Value |
|---|---|
| Metals | Stainless 303/304/316/316L/416/17-4 PH · brass CW617N, DZR CW602N, CuZn39Pb3 · aluminum 6061/7075/6082 · steel 1018/1045/42CrMo4/16MnCr5 |
| Plastics | PEEK · PTFE · POM (Delrin) · nylon · PVDF · polycarbonate |
| Tolerances | ±0.005 mm on critical diameters · DIN ISO 2768-mK general · ground features ±0.002 mm |
| Surface | Ra 0.8 standard machined finish · Ra 0.4 / Ra 0.2 ground · Ra 0.1 lapped |
| Finishes | nickel / zinc / hard chrome / black oxide / anodizing / PVD via audited partners |
| Documentation | EN 10204 3.1 material certificates · FAI · PPAP Level 3 (automotive) · full dimensional report |
| Order range | 1-piece prototypes · batch 100–20,000+ · 2.6 million parts/month capacity |
| Lead time | quotation within 48 hours · first prototypes 7–15 days |

## Related Pages

- [Medical instrument parts case study](https://www.sinbo-machining.com/case/medical-instrument-parts/)
- [Surgical instrument components](https://www.sinbo-machining.com/case/surgical-instrument/)
- [Singapore medtech components](https://www.sinbo-machining.com/case/sg-medtech-components/)

**Request a quote:** send your drawing to leo.pan@sinbo-machining.com — quotation within 48 hours, no minimum order for prototypes.

Last updated: 2026-09-27