What does MSTFAB manufacture?

MSTFAB is the international brand of Guangzhou Maisituo Sheet Metal Manufacturing Co., Ltd. It makes drawing-defined sheet metal parts and empty mechanical enclosure shells for OEM buyers, using laser cutting, CNC bending, welding and mechanical assembly. Surface treatments such as powder coating may be coordinated with external partners depending on the order.

Which materials does MSTFAB work with?

Common options include carbon steel, galvanized steel, stainless steel and aluminum. Grade, thickness, dimensions, critical tolerances, hardware, finish and inspection criteria are specified per project on the approved drawing.

What are the MOQ and lead time for custom sheet metal parts?

There is no single MOQ or lead time that applies to every part. MOQ, price, achievable tolerances, lead time, finishing route and inspection deliverables are confirmed in the project quotation and purchase order after the drawing is reviewed.

Does MSTFAB supply electrical components or certified finished equipment?

No. The normal supply scope is fabricated metalwork and empty mechanical housings. Electrical components, wiring, software, system integration and final equipment certification remain with the buyer unless a written quotation or contract explicitly includes them.

How do I request a quote?

Send STEP, STP, DXF, DWG or PDF files with the drawing revision, material and thickness, quantity, critical dimensions, hardware, finish, inspection needs and delivery destination through the RFQ page at https://mstfab.com/contact/.

ISO 13485 Automation Control Box Shell Fabrication: Medical DFM | MSTFAB

12:42 am
12:42 am

⚡ Direct Answer: What Governs ISO 13485 Medical Automation Control Box Shells?

ISO 13485 automation control box shell fabrication requires specialized quality management aligned with medical device standards (IEC 60601-1): 1) Zero Pinhole / Zero Spatter Welds: TIG or automated laser welds ground flush and passivated to prevent bacterial trap zones; 2) Strict Cleanliness & Degreasing: Ultrasonic aqueous wash ensuring <5 mg/m² organic residue for hospital cleanroom deployment; 3) Continuous Gasket Land Coplanarity within ±0.20mm ensuring uniform IP54/IP65 seal compression; and 4) Rigid Revision Control & Traceability: Every housing engraved with serialized 2D DataMatrix code linked to 10-year archived CMM dimensional reports and material test certificates.

ISO 13485 Medical Control Box Manufacturing Standards

Medical DFM Requirement	ISO 13485 Quality Standard	Fabrication Engineering Specification
Hygienic Surface Finish	Clause 7.5.1 (Cleanliness of Product)	Smooth Ra <0.8µm stainless or antimicrobial powder coat resisting IPA disinfectant wipes.
Weld Quality & Dressing	ISO 3834-2 / AWS D1.3 Class A	Continuous internal and external seams, 100% spatter-free, ground smooth to eliminate crevices.
Protective Earth Bonding	IEC 60601-1 Clause 8.6	Dedicated M6 copper-plated ground studs; contact resistance verified <0.05 Ω before paint.
Burr & Edge Rounding	ISO 14971 (Risk Management for Patient Safety)	All internal cut edges mechanically deburred to R ≥ 0.5mm to protect wiring insulation from chafe.
Cleanroom Kitting & Packaging	ISO 14644-1 Class 7/8 Compatible	Double polybag sealed packaging with particle-free foam corner protectors.

ISO 13485 medical automation control box shell assembly and precision sheet metal chassis — Figure 1: Precision control box shell designed for medical automation diagnostics equipment.

Eliminating Wiring Abrasion and Grounding Faults

In medical automation systems such as robotic sample analyzers and surgical dispensing pumps, internal harness chafing creates catastrophic reliability risks. MSTFAB implements rotary deburring machines that produce uniform 0.5mm edge radiuses on all wire pass-through apertures.

First article dimensional inspection of medical automation control box shell — Figure 2: CMM dimensional verification of mounting standoffs and HMI cutouts on medical control shell.

Medical Grade Enclosure Manufacturing with MSTFAB

Partner with an experienced OEM fabricator certified to ISO 9001 and compliant with ISO 13485 medical traceability standards. Full FAI packages and PPAP documentation provided.

Request Medical Enclosure RFQ

Frequently Asked Questions on ISO 13485 Enclosure Shells

What powder coating resists medical hospital chemical sterilants?

We apply specialized epoxy-polyester hybrid or 100% polyurethane powder formulations verified to resist frequent wipe-down with quaternary ammonium compounds, hydrogen peroxide (VHP), and 70% isopropyl alcohol (IPA).

How are material certifications tracked for medical device components?

Each enclosure is stamped or laser marked with a unique lot serial code directly linked in our ERP to the 3.1 Mill Test Certificate, powder batch lot number, and CMM dimensional inspection signoff.