※ Our History
In 2006, an electrical engineering college student, started to work in the distribution panels industry, he just graduated in that June. After 5 years focusing on this filed, he established Prota in 2011.
※ Our Factory
We have our own workshops and warehouse, occupied over 14000m2, in the beautiful landscape in Anji, the bamboo village in China. As an ISO 9001 certified factory, Prota has produced enclosures IP rated enclosures from 55 up to 66, Our enclosures go through stringent quality control during in production and are picked by random for testing by our professional QC dept. All selected enclosures have passed UL, ROHS test, got CE approval complying with EN62208 standard as well, furthermore, both the IP & ROHS certificates were issued by TUV lab in Shanghai China.
※ Our Product
Our product range includes but is not limited to:
Metal Wall Mounting Enclosures: Single Door, Double Doors, W/T Internal door, W/T Plexiglass door, W/T chasis internal;
Metal Terminal Boxes: 4 screws type, 180º hinges & locks type, Latches & hinges type;
MCB Boxes, Gland Boxes, Telephone Boxes,
Stainless Steel Enclosures, material includes both 304AISI & 316L, including: single door, double doors, W/T internal door, plexiglass door;
PR8 ONE PIECE floor standing cabinets -- Both metal & stainless steel are avaliable;
PR9 floor standing cabinets W/T 9-folded profiles to make the cabinets stronger, & better at weight capacity;
PR9K knock-down type cabinets, it can be all flat packed, which helps saving 1/3 shipping space/cost at least during the transportation.
As well as other accessories related to enclosures.
We do custom enclosures & cabinets as per your request as well.

Custom Sheet Metal Enclosures Built for Your Success

Custom Engineering Support
From concept to production, we develop OEM sheet metal enclosures based on your drawings or specifications. Structural optimization, material selection, and assembly efficiency are fully considered to match your application requirements.

Precision Manufacturing Capability
Equipped with laser cutting, CNC bending, welding, and powder coating lines, we deliver high-accuracy sheet metal fabrication in steel, stainless steel, and aluminum with stable batch consistency.

Strict Quality Control
Every custom metal enclosure undergoes material inspection, dimensional verification, and surface quality checks to ensure durability, compliance, and long-term performance.
※ Product Application
Lighting, Mining, Distribution Panels, Medium-voltage and low-voltage switchgear, Industrial Automation Control Equipments & Facilities, etc.

※ Our Certificate
ISO9001, CE, RoHS, UL, IP66, IP55, IK10
※ Production Equipment
Digital Cutting Machines, Punching Machines, Digital Bending Machines, CNC Machine, Argon-arc Welding Equipments, Powder-coating Line, Gasket Foaming Machine, Riveting Machine, A series of inspection equipments.
※ Production Market
We're a professional manufacturer of many different kinds of distribution boxes for the electrical industry with about 20years experience so far, our enclosures and cabinets are exporting to more than 100 different countries and areas over the world.
※ Our service
To provide customers with:
Timely quotations
Competitive pricing
Excellent customer service
Quality products
Quick on-time deliveries
Continuous improvement

