electrical enclosure

Precision Engineering for Global OEMs

Custom Metal outdoor enclosure services

From rapid prototyping to high-volume production, Supro MFG delivers one-stop precision metal fabrication with ISO-certified quality. Reduce your lead times and production costs with our expert DFM support.

  • 1-3 day Rapid Prototyping & Agile Supply Chain Delivery.
  • On-time delivery of high quality product commitments.
  • Extensive Material Selection & Industrial-Grade Finishing.
  • Direct-from-Factory Pricing & Transparent Costing.
  • ISO 9001-2015 / IATF 16949:2016 certified system.
  • Integrated Assembly: Delivering finished, ready-to-use products, not just components.

Rapid Prototypes,  DFM Optimization,  On-Time Delivery,  Real Manufacturer Quote.

Rapid stamping die Turnaround

Committed to exceeding expectations for quality and rapid turnaround, and meeting high-quality sheet metal parts.

Consistency & high quality

Whether it is rapid prototyping & large-volume manufacturing, we will implement it according to customer needs and standards.

Low Cost Effective

Integrate product design, bending, stamping, cutting, surface treatment, etc. to provide a series of manufacturing solutions.

Precision Metal Fabrication Services in China | Custom OEM Solutions & Rapid Prototyping

Your Strategic Partner for Precision Metal Fabrication

At Supro MFG (Supro Manufacturing Co., Ltd.), we don’t just manufacture parts; we engineer reliability. As a leading China metal fabrication factory, we bridge the gap between complex design and cost-effective production. By leveraging our ISO 9001:2015 & IATF 16949 certified facilities and a seasoned engineering team, we provide 3,000+ global clients with unparalleled custom metal fabrication services—direct from the source with transparent, manufacturer-level pricing.

We specialize in the high-quality manufacturing and assembly of custom metal parts, with processing capabilities encompassing: sheet metal fabrication, metal stamping, CNC machining, laser cutting, metal welding, metal spinning, deep drawing, aluminum extrusion, die casting, as well as customized finished product assembly and surface treatment services.

From concept prototypes to mass production,

Supro MFG is your most reliable partner and you will benefit from our manufacturing services.

One-Stop Solution for Custom Metal Parts

Comprehensive Metal Fabrication Services

Looking for reliable metal fabrication companies?

Supro MFG offers one-stop custom metal fabrication, laser cutting, and CNC machining. Expert DFM, high precision, and fast global shipping.

sheet metal fabrication services

Sheet Metal Fabrication Services

The manufacturing process of forming sheet metal by cutting, bending and other processes, such as panels, brackets and housings.
Precision aluminum extrusion parts manufacturing in China

Aluminum Extrusion Services

Providing aluminum extrusion services, including: molds design & manufacturing, extrusion manufacturing, secondary machining, surface treatment, and packaging and shipping.
sheet metal stamping

Precision Metal Stamping

Press the metal sheet and use the stamping die to perform blanking, embossing, bending, flanging, and coining, so as to obtain the required customized stamping parts.
metal welding and fabrication

Metal Welding Fabrication

Connect a variety of metal materials by means of high temperature or pressure to obtain a complete assembled sheet metal part. Usually used in pipelines, steel structures, metal cabinets, enclosures, etc.
precision cnc mahining

CNC Machining Services

Using CNC codes to control milling tools and subtracting metal materials can quickly create precision metal & plastic parts, which are widely used in rapid prototyping of various materials.
custom metal signs laser cut

Laser Cutting Services

The metal sheet is cut after being heated by the laser beam, and the metal prototype is cut quickly, making it one of the indispensable processes in the sheet metal manufacturing process.
custom deep drawing parts

Metal Spinning Services

Metal sheets are formed into cylindrical, conical, curved, and other rotary parts through high-speed rotation and gradual pressure application. We support materials such as aluminum, stainless steel, copper, and titanium alloys.
carbon steel deep drawing stamping

Deep Drawing Stamping Services

We perform single- or multi-stage stamping of metal sheets to form tubular, box-shaped, and complex irregular parts. We support materials such as carbon steel, stainless steel, aluminum, copper, and titanium alloys.
die casting housing parts

metal die casting Services

Using high-pressure precision die-casting technology, molten metal is injected into the mold at high speed to produce complex, thin-walled parts in a single casting. This process supports aluminum, zinc, and magnesium alloys. The parts feature a smooth surface finish and dimensional stability.

Securing Your Designs with Enterprise-Grade Confidentiality at Every Stage of Manufacturing

Your Innovation, Protected:
Uncompromising IP Security & NDA Compliance

custom heavy duty metal brackets

At Supro MFG, we understand that your designs are your most valuable assets. As a strategic sheet metal stamping partner, our commitment to your intellectual property is absolute. We operate under a strict Zero-Leak Policy, ensuring that every blueprint, CAD file, and prototype remains strictly confidential within our secure engineering ecosystem.

We proactively offer comprehensive Non-Disclosure Agreements (NDAs) that align with international legal standards, providing you with a transparent and enforceable framework for cooperation. Beyond legal paperwork, our internal protocols include segmented data access, secure server encryption, and rigorous staff training on IP sensitivity. Whether you are a startup scaling a disruptive product or an OEM managing sensitive aerospace components, Supro MFG acts as a secure extension of your own facility. Partner with a metal stamping manufacturer that values your competitive advantage as much as you do.

Comprehensive sheet metal stamping technical support

Reasonable surface treatment of metal parts can improve the durability, corrosion resistance, heat resistance, electrical conductivity and appearance decoration of the material.

precision steel sheet stamping

Engineering-Driven DFM Support:

Our engineers are more than just metal stamping manufacturers; we are your design partners. Before tooling development begins, we provide detailed DFM reports that identify potential risks of cracking, springback, or material waste, saving you an average of 15% in upfront costs.

Quality Consistency & Global Standards:

In response to the stringent requirements many customers have for high-precision metal stamping, we strictly adhere to the ISO 9001:2015 quality management system. Every batch is accompanied by comprehensive dimensional reports and material test reports (MTRs), ensuring 100% traceability.

steel sheet stamping process
steel sheet stamping process

Seamless Communication & Transparency:

We understand that time zone differences and cultural barriers can pose challenges in cross-border procurement. Supro MFG provides technical feedback in English within 24 hours and offers real-time production updates for large-scale projects, allowing you to stay in control even from thousands of miles away.

Custom metal cabinets fabrication Material Solutions

At Supro MFG, we offer a full range of metal materials to meet the demanding requirements of any industry or environment, and we can proactively advise our customers on metal fabrication techniques that utilize the properties of the materials to maximize the life and functionality of their products.

China sheet metal fabrication services

Aluminum Alloy cabinets

Lighter, lower cost aluminum alloy with excellent heat dissipation and corrosion resistance.

custom stainless steel control cabinet

stainless steel cabinets

Widely used stainless steel, with very good strength, suitable for medical, food and other industries. Good corrosion resistance,  metallic luster.

power metal cabinets

Iron cabinets

The most cost-effective metal material, good yield strength. Often the surface is galvanized and powder coated.

sheet metal enclosure

Carbon steel cabinets

Very good yield strength, low cost, higher strength construction. Galvanized and powder coated surfaces are added.

custom metal enclosure manufacturer

galvanized steel Cabinets

It is commonly used for complex structures with a thickness of 5mm or less, and the surface is coated to prevent rust and corrosion.

outdoor weatherproof electrical enclosures

Titanium Cabinet

Excellent impact resistance, suitable for welding, long term operation at 350°. Widely used in the aerospace industry.

No design files? Let Supro MFG do it for you.

We often come across clients who have no professional design drawings and documentation, only a creative idea, which leads to the project being at a standstill.

If you are in this situation, then contact our team of experts.

Supro MFG, as an industry-leading custom metal fabricator, has an ever-experienced team of engineers who utilize their extensive fabrication experience and technical expertise to build your idea into a real product and create design files such as STEP/STP/SLDPRT/DXF/PDF/PRT/DWG/AI.

That’s what makes SUPRO MFG so great, and 2,000 corporate, entrepreneurial, artist, and other purchasers from around the world enjoy working with us and benefiting from our one-stop manufacturing services.

Precision aluminum extrusion parts manufacturer in China

Comprehensive sheet metal stamping technical support

Reasonable surface treatment of metal parts can improve the durability, corrosion resistance, heat resistance, electrical conductivity and appearance decoration of the material.

precision steel sheet stamping

Engineering-Driven DFM Support:

Our engineers are more than just metal stamping manufacturers; we are your design partners. Before tooling development begins, we provide detailed DFM reports that identify potential risks of cracking, springback, or material waste, saving you an average of 15% in upfront costs.

Quality Consistency & Global Standards:

In response to the stringent requirements many customers have for high-precision metal stamping, we strictly adhere to the ISO 9001:2015 quality management system. Every batch is accompanied by comprehensive dimensional reports and material test reports (MTRs), ensuring 100% traceability.

steel sheet stamping process
steel sheet stamping process

Seamless Communication & Transparency:

We understand that time zone differences and cultural barriers can pose challenges in cross-border procurement. Supro MFG provides technical feedback in English within 24 hours and offers real-time production updates for large-scale projects, allowing you to stay in control even from thousands of miles away.

Securing Your Designs with Enterprise-Grade Confidentiality at Every Stage of Manufacturing

Rigorous Quality Control:
Ensuring Zero-Defect Precision Metal Stamping

Material Integrity

All raw materials (stainless steel, aluminum, copper, etc.) must be accompanied by a Material Test Report (MTR) and undergo hardness and spectroscopic verification upon receipt to eliminate performance variations at the source.

Advanced Tooling Qualification

We utilize precision CNC machining and electrical discharge machining (EDM) to ensure that the tooling itself meets tolerances that exceed product requirements. We conduct First Article Inspection (FAI) and the Production Part Approval Process (PPAP), and formal production is not initiated until all dimensions have been verified using a Coordinate Measuring Machine (CMM).

Real-Time SPC Monitoring

We have implemented Statistical Process Control (SPC) in our high-speed sheet metal stamping production process. Quality inspectors regularly take samples and record critical dimensions, using CPK/PPK metrics to monitor production stability in real time. If the data falls outside the tolerance limits, the production line is immediately shut down for calibration to prevent the production of non-conforming parts.

Automated Metrology Lab

We invest in advanced inspection equipment to eliminate human measurement errors:Coordinate Measuring Machine (CMM): Handles complex 3D geometric features.2.5D Optical Inspection: Performs non-contact, high-speed, high-precision measurements on small, precision stamped parts.

Surface & Functional Validation

We place equal emphasis on functionality and aesthetics: salt spray testing (corrosion resistance), hardness testing, coating adhesion testing, and strict control of burrs ensure compliance with safety and tactile standards in European and American markets.

Global Traceability & Reporting

Every batch of products is assigned a unique tracking code and comes with detailed test reports, material certificates, and a Certificate of Conformity (COC). Our digital records are retained for more than five years to ensure the traceability of production data.

A part is only as good as its finish.

High-Performance Surface Finishing: Aesthetics Meets Durability

At Supro MFG, we understand that professional custom metal fabrication requires more than just structural integrity—it demands surface treatments that withstand harsh environments and strict aesthetic standards.

Our integrated finishing shop provides a seamless transition from the production line to the final coating, ensuring tight control over lead times and quality.

online custom metal fabrication parts

Only 4 steps

Contact our experts team and experience the efficiency and economic benefits of digital metal fabrication services.

Upload Design Files

STL , STEP (.stp), IGES (.igs), (.ZIP), or PDF.
Also be a sample or an idea

Quote & Design Analysis

Instant factory quotes and DfM reports, the most reasonable solution.

Manufacturing Begins

Digital processes can initiate order tasks within 24 hours.

On-Time Delivery

Keeping delivery promises, approved by 3000+ Global Company buyers.

Custom metal cabinets fabrication Material Solutions

At Supro MFG, we offer a full range of metal materials to meet the demanding requirements of any industry or environment, and we can proactively advise our customers on metal fabrication techniques that utilize the properties of the materials to maximize the life and functionality of their products.

China sheet metal fabrication services

Aluminum Alloy cabinets

Lighter, lower cost aluminum alloy with excellent heat dissipation and corrosion resistance.

custom stainless steel control cabinet

stainless steel cabinets

Widely used stainless steel, with very good strength, suitable for medical, food and other industries. Good corrosion resistance,  metallic luster.

power metal cabinets

Iron cabinets

The most cost-effective metal material, good yield strength. Often the surface is galvanized and powder coated.

sheet metal enclosure

Carbon steel cabinets

Very good yield strength, low cost, higher strength construction. Galvanized and powder coated surfaces are added.

custom metal enclosure manufacturer

galvanized steel Cabinets

It is commonly used for complex structures with a thickness of 5mm or less, and the surface is coated to prevent rust and corrosion.

outdoor weatherproof electrical enclosures

Titanium Cabinet

Excellent impact resistance, suitable for welding, long term operation at 350°. Widely used in the aerospace industry.

F.A.Q

Supro MFG is a professional Chinese sheet metal manufacturer, we specialize in the design and manufacture of custom sheet metal parts fabrication and Sheet metal Prototype, ISO 9001-2015 certified, providing a full range of sheet metal parts fabrication solutions and technical support .
We are not a trader, all products are done in our in-house factory, we have a reliable supplier of surface treatment, heat treatment, and standard parts to support us, and we can provide you with economical sheet metal manufacturers ex-works prices.

We have our own sheet metal fabrication factory, welding workshop, laser cutting workshop, and precision CNC Machining workshop, with a total area of more than 3000 square meters, with 12 technical engineers, 36 skilled workers, 6 quality engineers, and a professional English sales team.

Of course, we keep all the customer's information confidential, sign a non-disclosure agreement, our factory will not allow unrelated personnel to enter without authorization, your product design and patented technology will be protected by us.

Yes, we have rich manufacturing experience and technical knowledge, can draw professional design files (including: STL/STEP/IGES/PDF/CAD, etc.) according to your ideas, and provide you with free manufacturability solutions. Actively help you optimize product design, reduce costs, and make your product design more dynamic in the sales market.

From raw materials to finished packaging, we will provide you with reliable quality inspection reports and photos at any time. If you need an authoritative third-party inspection report, we can also actively cooperate to ensure that you will receive high-quality products.

T/T, Paypal western union, L/C, and other channels you suggest (contact us for negotiation).

Yes, we can provide system documentation for PPAP level3.

Our quotations are all factory quotations from manufacturers, and all manufacturing costs and labor costs are traceable. We all use the raw materials of authoritative manufacturer brands, refuse to cut corners, and all products are subject to our quality control.
While there are plenty of small businesses that offer you a very low price, the quality can be at risk.
What your project needs more is the guarantee of high-quality products and on-time delivery, not high-risk.

We do not set a minimum order quantity. Whether you need a small amount of prototypes or large quantities, we will treat you equally and provide you with a full range of manufacturing services and technical support.

We will develop a detailed production plan, every point in time will be practically verified, and all processes are under our monitoring to ensure on-time delivery of high-quality products. (Except for the influence of force majeure factors)
Once there is a signal of delay, we will organize more production capacity to ensure on-time delivery.

Looking for a reliable custom metal outdoor enclosure Services?

Talk To Supro MFG Expert Team

Contact us for competitive ex-factory prices,

and a full range of technical support services.

滚动至顶部