| 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 |
A mixer enclosure has to disappear — the user should notice the faders and the sound, never the box. Our enclosure program delivers that invisibility through seams that stay even, finishes that stay uniform and legends that stay aligned.
What we build: tabletop mixer and interface enclosures; rack-mount chassis with front panels; stage-box and snake boxes; power-supply enclosures; full sets — top, bottom, sides, rear panel and trim — kitted assembly-ready with hardware.
Seam discipline: top and bottom shells are machined on matched fixtures so parting lines hold within 0.03mm; corner radii match across all five faces; screw bosses are positioned to your PCB so assembly needs no reaming or adjustment.
Finish architecture: sandblast + anodize as the base (black, silver, champagne or custom), then silk-printed scale legends and logos cured for abrasion resistance. Internal surfaces stay conductive for EMI gaskets where your layout needs it, masked per drawing.
Kitted to your line: enclosures arrive as complete sets with foam, hardware bags and optional sub-assembled panels — your contract manufacturer builds, we fit. MOQ 200 sets, scaling to 200k+ per year.
Shells machined on paired fixtures — parting lines stay within 0.03mm and corners match on every face.
Internal EMI masks per drawing; anodize outside, bare contact zones inside for gaskets.
Complete sets with hardware and foam — your CM builds without reaming or adjustment.
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.
Custom CNC turned aluminum knobs produced on precision lathes. We manufacture control knobs with CD texture, anodized finishes and custom bores for audio equipment, home appliances and industrial instruments.
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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.