No. 99 Yilan Rd., Xiamen , CN.
+86 186 5928 0806

Custom Metal Frames, Enclosures, Cabinets & Chassis Fabrication

We are experienced in manufacturing of enclosures, machine covers, industrial boxes, industrial fuel tanks and other structures from sheet metal. We deliver components in a variety of states from parts, welded frames, powder coated frames and fully assembled modules. We follow strictly client requirements and provide a full manufacturing solution. Whether it’s a small aluminum box, a large metal chassis, cabinets, or a sheet metal box, we’ve got years of experience fabricating high quality, tight tolerance metal enclosures.

We fabricate a variety of custom metal frames, custom electrical enclosures, cabinets, shrouds, housings, and boxes from a variety of metals including sheets of: Stainless Steel, Carbon Steel, Aluminum, Pre-primed,  Pre-painted, Galvanized, Galvanneal, Aluminized, Galvalume
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battery box fabrication of new energy
  • metal enclosure of metro
  • steel structure fabrication
    steel frame for storage facilities
    crawler crane rack
  • battery box of new energy
    Dyeing Cabinet welding
    Dyeing Cabinets for textile industry
  • electricity box fabrication
    metal enclosure fabrication for electricity box
    metal enclosure for dyeing and printing
  • metal enclosure for elevator
    metal enclosure
    metro ticket enclosure

We also manufacture top-of-the-line custom NEMA enclosures for electrical components as well as chassis for automotive electronics components.

With a full selection of value added services, our team of expert fabricators can take your requirements and turn them into finished, top-quality products.

With a wide range of cutting, grinding, and drilling capabilities, we can handle almost any project and provide a finished product that meets your specifications. We are your go-to enclosure, cabinet, and metal box manufacturer.

Reduce your project costs
When we become involved early in the design stage, we help identify cost saving opportunities and can recommend changes for most cost efficient designs for your metal enclosures and components. If you can approach our team at the beginning of the process, we’ll provide recommendations to enhance your product while ensuring it meets your exact specifications from prototype through production.

Are you looking for new metal enclosure manufacturers to assist with the fabrication of your existing product line? At Openex, we’re your partner, and we ensure a smooth transition by producing a high quality product that meets the technical and finishing requirements for your enclosures and components. In addition to fabricating your custom sheet metal enclosures, we also will help with any machining, powder coating or other finishing, full or partial assembly, and inventory management.

Contact us at or call us at +86 186 5928 0806 for more information about manufacturing for metal enclosures and to receive a free project quote today.

Fabrication ProcessesShearingLouvers
Laser CuttingGraining
ExtrudingSand Blasting
Secondary ProcessesHeat TreatingPlating
WeldingSilk Screening
Spot weldingHardware Installation
Wet PaintingMechanical Assembly
Powder coatingPrecision Liquid Dispensing (FIP)
EquipmentPunch-Laser MachineTimesavers
Laser Cutting MachineHaeger Hardware Insertion
Punch Press 
Press Size30T-3000T 
Raw Material FormsCoil 
MaterialsAluminumStainless Steel
Cold Rolled SteelBrass
Hot Rolled SteelCopper
FinishesGrainingWet Paint
PlatingSilk Screening
Powder Coating 
PlatingConversion Coating (Alodine)Tin
Material Thickness0.2-40mm 
Cutting Tolerance±0.002 to ± 0.4 mm 


Our Full-Service Metal Fabrication - metal cutting and sheering, metal forming, bending, and rollingweldingCNC machining, sheet metal assembly, and quality inspection

Machining Services: Multi-Axis Machining, 5-Axis Machining, CNC Milling | Vertical and Horizontal, CNC Turning | Vertical and Horizontal, CNC Engineering, CMM Inspection

Material Types: castings, forgings, fabricated weldments, billets, bar stock, and plate

Metal Materials we worked: Stainless steel, Carbon Steel, aluminum, brass, bronze, chromium, copper, Monel, nickel,  titanium, zinc, and many other superalloys.

Contact us at or call us at +86 186 5928 0806 for more information about fabrication for your industry and to receive a free project quote today.

Certifications: ISO 9001, 14001,18001, CE EN 1090-1, ISO 3834, ABS, AWS, API, ASME, DNV.GL.

Industries Served: Mining,  Construction,  Oil & Gas,  Power Generation,  Marine,  Automotive,  Renewable Energy,  Pulp & Paper,   Bridge,   Aerospace,   Defense,  Printing and Dyeing,  Machinery, etc.

About Openex

Openex is home to a full-service, one-stop-shop, contract manufacturing company producing custom large machined parts and fabrications. Our full large fabrication services including large machining, cutting, welding, rolling, punching, braking, testing, painting, and others.
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