# Sensor Housings & Electronics Hardware — CNC Machined to Drawing

> Sinbo Precision (sinbo-machining.com) machines 36 sensor & electronics parts 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.

Sensor barrels, circular connector shells and PCB hardware are long-run bar work for our Swiss and CNC lathes, with tolerances that survive overmolding and potting. Sinbo machines 303/304/316 stainless, brass, aluminum and Kovar 4J29 for glass-to-metal sealing applications, and supplies cold-forged contacts with selective plating through audited partners.

## 36 Sensor Housings & Electronics Hardware We Machine

- **Ultrasonic sensor housing** — 304/303 stainless barrel, face thickness controlled for acoustics.
- **Proximity switch barrel** — Ø8/12/18/30 mm, thread + face single setup.
- **Capacitive sensor body** — brass nickel-plated or 303 stainless.
- **Photoelectric sensor barrel** — 303 stainless, lens seat faced.
- **M8 connector body** — brass or 303, 3/4-pin insert geometry.
- **M12 connector body** — A/B/X-coding keyways milled.
- **M23 connector shell** — brass/alu, thread + key per drawing.
- **SMA connector housing** — brass or 303 stainless, 36-thread rolled.
- **MMCX / SMB housing** — micro-geometry turned on Swiss lathes.
- **Coaxial housing** — shield continuity features machined in.
- **Fiber optic ferrule holder** — titanium/SS, ceramic ferrule bore ±0.002 mm.
- **EMI shield can** — stamped + coined 5052,±0.1 mm flatness option.
- **Milled shield case** — aluminum, shielding walls ±0.05 mm.
- **PCB standoff** — brass, male-female or F-F, M2/M2.5/M3.
- **PCB spacer** — ground length ±0.02 mm.
- **Contact pin** — brass/beryllium copper C17200, plated.
- **Socket contact** — beryllium copper, heat-treated 40 HRC option.
- **Spring probe housing** — brass, inner bore ±0.01 mm.
- **Pogo pin plunger** — Swiss-turned, tip radii controlled.
- **Cold-forged battery contact** — copper, head + leg forms to print.
- **Custom heat sink** — 6063/6061 milled, flatness ≤0.05 mm on mounting face.
- **Pin-fin heat sink insert** — cold-forged copper pins.
- **Antenna ground plane mount** — aluminum, NMO/thread options.
- **Cable gland body** — nickel-plated brass, IP68 thread geometry.
- **Cable gland locknut** — brass, stamped or machined.
- **Strain relief insert** — brass knurled sleeve.
- **Potentiometer shaft** — stainless, D-flat + knurl options.
- **Encoder shaft** — Ø2–10 mm, ground journals.
- **Knurled knob insert** — brass diamond knurl, mold-in flange option.
- **Mold-in threaded bushing** — brass, pull-out knurl patterns.
- **Relay armature** — soft magnetic iron, cold-headed flat + ground.
- **Stepper motor rotor shaft** — multi-journal ground, magnet sleeve ready.
- **Vibration motor weight** — eccentric turned brass/steel, offset ±0.02 mm.
- **Camera module barrel** — aluminum/brass, ID thread for focus travel.
- **C-mount adapter** — aluminum, 1"-32 thread gauge-checked.
- **Enclosure standoff pillar** — aluminum, tapped both ends.

## 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

- [Sensor housings case study](https://www.sinbo-machining.com/case/sensor-housings/)
- [Electrical connectors case study](https://www.sinbo-machining.com/case/electrical-connectors/)
- [Kovar sealing parts](https://www.sinbo-machining.com/case/kr-kovar-sealing-parts/)

**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