| Tolerance Type | Description |
| Precision Tolerance | Parts are manufactured and inspected strictly according to your drawing specifications and GD&T annotations, with a minimum tolerance of ±0.05 mm. |
| General Tolerance | ±0.05 mm |
| Minimum Feature Size | 0.5 mm. The exact minimum feature size may vary depending on the part geometry and selected material. |
| Threading & Tapped Holes | Capable of machining any standard thread sizes, as well as customized thread specifications. |
| Edge Condition | Sharp edges are deburred and chamfered by default. |
| Surface Finishing | Anodizing, Powder Coating, Spray Painting, Laser Engraving, Silk Screen Printing |
| Minimum Wall Thickness | 0.5mm |
| Minimum End Mill Size | 0.5mm |
| Minimum Drill Hole Size | 1mm |
| Minimum Part Size | CNC Milling: 5 × 5 × 5 mm; CNC Turning: 2 × 2 mm; |
| Maximum Part Size | CNC Milling: 4000 × 1500 × 600 mm
CNC Turning: 200 × 500 mm |
Medical device components are judged by auditors, not just by assemblers: every dimension on your drawing needs a data trail from raw material to final inspection. Our ISO 13485-certified line was built for exactly that burden of proof.
What we produce for medical devices: surgical instrument bodies and handles; diagnostic equipment brackets and optical mounts; dental handpiece components; drug-delivery mechanism parts; sterilization trays and case hardware. Stainless 303/304/316L and 6061 aluminum dominate; PEEK and titanium on request.
Where medical projects go wrong elsewhere: shops machine the part but cannot document the journey. Here, material lots are traceable to mill certs, cutting tools are logged per operation, and inspection data (CMM, surface roughness, passivation certificates) ships with every batch — your DHF/TF files stay complete.
Surface engineering for clinical environments: electropolish-ready finishes, passivation per ASTM A967, and Ra targets held on tissue-contact or cleaning-critical surfaces. Cosmetic zones are handled with the same discipline as functional ones — audits notice both.
Volume without drama: from 20-piece surgeon-instrument pilots to million-piece annual programs, with change control that requires your written approval before any process drifts. Reorder batches are re-validated against the archived golden sample.
Mill certs, tool logs and CMM reports per batch — your regulatory files close without chasing suppliers.
ASTM A967 passivation, electropolish-ready Ra targets and documented roughness on contact-critical zones.
Golden samples archived with process parameters; every reorder re-validated before shipping.
From aerospace-grade aluminum to medical-certified engineering plastics, our in-house CNC machining centers work a broad range of metals and plastics under one roof.
Don’t see your material? Send your drawing for review — we will confirm availability and quote it.
Functional and cosmetic finishes applied in-house or through vetted partners.
Type II protective anodize, natural silver finish.
Type III hard coat, wear-resistant black.
Blue, red, gold, green dye for audio and 3C.
Uniform matte texture, hides machining marks.
Durable corrosion-resistant RAL colors.
Removes free iron, boosts stainless corrosion.
Zinc, nickel, chrome, tin for connectors.
Permanent non-contact logos and serials.
High-efficiency VMCs for prototype, mid-volume and large-batch metal parts production.
Integrated drilling, tapping and milling shortens lead time for aluminum enclosures.
Combined drilling-milling lines support both small batches and volume OEM orders.
Well-organized production zones support everything from one-off parts to mass programs.
Systematic line layout raises machining efficiency and guarantees on-time delivery.
Complete CNC equipment set enables stable continuous running for OEM volumes.
Dongguan, China · 200+ CNC machines · In-house anodizing & laser cutting · Visitors and third-party inspections welcome.
Fully certified quality management system. Every batch ships with material certificates and inspection reports you can trust.
Our engineers review every drawing upfront — flagging tolerances, undercuts and cost drivers before a single chip is cut.
Custom foam, wooden crates and FBA-ready packaging. Door-to-door freight to 60+ countries with full tracking.
Your message lands directly with our senior engineers — instantly acknowledged.
We study your requirements and propose a workable solution with material & process options.
Detailed quotation with specs, options and lead time — no hidden fees.
Approve the sample, then we mass-produce with full QC and on-time shipping.
WhatsApp: +86 13790500374
Email: info@rejincnc.com
Your CAD files are kept strictly confidential. Quotation within 24 hours.