Contract sheet metal manufacturing
Custom Din Rail Enclosure Manufacturing Services
As a key component of the electrical control system, a high-quality customized electrical enclosure bears the important responsibility of protecting the internal electrical components, realizing electrical connection and distribution, and ensuring the safe and stable operation of the system. Its design, material selection and manufacturing process are directly related to the performance, safety and service life of the entire electrical control system.
outdoor electrical enclosure
Modular electrical enclosures
weatherproof electrical enclosures
large electrical enclosure
waterproof electrical enclosure
Lockable electrical enclosure
Rapid Prototype Turnaround
Committed to exceeding expectations for quality and rapid turnaround, and meeting high-quality electrical enclosures.
On-Demand Fabrication
Whether it is rapid prototyping & large-volume manufacturing, we will implement it according to customer needs and standards.
Real EX-Factory Quote
Integrate product design, bending, stamping, cutting, surface treatment, etc. to provide a series of manufacturing solutions.
Custom Electrical Enclosure Manufacturer
electrical enclosures cabinet as an indispensable and important part of the electric power field and modern industrial automation system, customized metal electrical enclosures not only protect the role of the internal electrical equipment, but also has the role of auxiliary heat dissipation performance, service life, and overall aesthetics.
In addition, more and more large-scale enterprises will be their own business In addition, more and more large corporations are spraying their corporate culture, logos, and main theme colors on electrical enclosures, which not only has a superior modern industrial aesthetic, but also promotes their corporate culture, making it crucial to customize high-quality electrical enclosures boxes.
Usually, customized metal electrical enclosures are designed to be fully enclosed and equipped with efficient dust and moisture control measures to ensure that the environment inside the cabinet is always dry and clean. The electrical enclosure cabinet door frames are increased with waterproof edges and cabinet door seals to prevent water and dust from falling into the cabinet. The surface of the cabinet is specially treated with excellent anticorrosion and antirust properties (NEMA or IP protection level) to further protect the equipment from the erosion of the external environment. It can be used in the fields of power and lighting distribution and motor control inside and outside of all kinds of buildings, fire pump control, submersible pump control, fire blower control, fan control, lighting distribution control, and so on.
Benefit from more options
Custom electrical enclosure Project Gallery
In modern industrial and commercial environments, high quality customized electrical enclosures provide the commercial characteristics of stable operation, safety, durability and aesthetics. Unique performance advantages can be utilized, making them the choice for a wide range of applications.
Superior Electrical Enclosure Manufacturing Capabilities
Supro MFG is a Chinese sheet metal manufacturer specializing in custom electrical enclosures with over 30 years of manufacturing experience, ISO9001-2015 quality certified, involved in the design and manufacturing of over 2,000 custom electrical enclosures projects.
including: outdoor electrical enclosures, weatherproof electrical enclosures, NEMA rated electrical enclosures, IP protected electrical enclosures, explosion proof electrical enclosures, outdoor solar battery enclosures, equipment enclosures, modular electrical enclosures, recessed electrical enclosures, wall mount enclosures and other types.
Relying on professional manufacturing team and advanced manufacturing equipment, we provide one-stop customized electrical enclosure manufacturing service for global buyers, with cost-effective factory quotation and on-time delivery.
Custom metal enclosures fabrication services
With our extensive experience in custom sheet metal fabrication and our advanced equipment.
We can handle precision sheet metal fabrication projects for any industry.
laser cutting services
sheet metal bending services
metal welding services
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.
Custom electrical enclosure solution
Professional Contract Manutacturing Services
Supro MFG combines a variety of sheet metal manufacturing equipment to provide a variety of different sheet metal bending and assembly molding services, with the skills and experience required to make your design a reality.
Reasonable choice of materials
Material selection for electrical enclosures is critical, and common materials include high-quality cold-rolled steel, stainless steel, and aluminum alloys. These materials have good mechanical strength, corrosion resistance and processing performance. In the selection, according to the use of the environment (such as humid, corrosive environment) and design requirements (such as the level of protection) to determine the thickness of the material and material to ensure the durability and safety of the shell.
- stainless steel :301 / 304 / 316 / 316L Etc.
- Aluminum alloy : 6061 / 6063 / 5052 / 5754 / 5082 Etc.
- Steel : Carbon Steel. Galvanized steel. Color coated steel, other steel.
- Plastic : ABS / Acrylic / fiberglass / PC / PVC
Flexible structural design
The structural design of electrical cabinet housings needs to comply with electrical safety codes, meet high efficiencies for mass production, and be competitively cost-effective. Ensure adequate space layout to accommodate electrical components and facilitate post maintenance.
At the same time, we should consider the heat dissipation needs, reasonable design of ventilation holes and heat sink structure, to prevent overheating caused by equipment failure. According to different protection level requirements, rationally design the sealing and surface coating.
From simple rectangle to complex shaped structure, it needs to be accomplished through rich experience after continuous testing. For shells with special requirements, such as the need to increase the heat dissipation holes or mounting accessories, but also need to use punching, drilling and other processes to deal with.
laser cutting services
Laser cutting service is the most cost-effective cutting process.
Characterized by high precision and efficiency, it is able to accurately cut out the contour of the shell and reduce material wastage, while the CNC bending machine, according to a pre-set program, accurately bends the cut sheet to form the basic framework of the shell.
Supro MFG has two 6000KW high-precision laser cutting machines and one 12000Kw high-precision laser cutting machine, which can fulfill the requirement of cutting small quantities of sheet metal in one day.
sheet metal bending services
With our extensive experience in sheet metal bending and our advanced equipment, we can handle sheet metal bending parts manufacturing tasks for any industry.
We can manufacture exactly what is needed: angles, "U" shapes, multiple bent shapes, "C" shapes, etc., as well as all complex product designs. Provides the same dimensional and fit tolerance consistency, +/- .05mm accuracy on features or edges.
Supro MFG will always exceed your quality expectations.
Metal welding & Polishing fabrication services
At Supro MFG, the components of our customized electrical enclosures are joined together by welding techniques. For stainless steel or aluminum alloy enclosures, laser, TIG (Tungsten Inert Gas) or MIG/MAG (Melting Electrode Gas) welding is often used to ensure the aesthetics and strength of the weld. Cold rolled steel shells may be resistance welded or arc welded, depending on the specific needs of the choice.
After the welding is completed, it is also necessary to carry out weld grinding, stress relief treatment, etc., to ensure that the weld seam is flat, no cracks, while reducing welding deformation. Grinding removes slag and burrs and improves appearance.
surface treatment Services
In order to improve the corrosion resistance and aesthetics of the shell, surface treatment, such as electrostatic spraying, powder coating or anodizing, is usually required. These processes can form a layer of uniform, dense coating on the surface of the shell, effectively isolating the external environment.
Coating is the key link to enhance the protective performance of electrical cabinet shell. According to the design requirements, select the appropriate coating (such as epoxy paint, polyurethane paint, etc.), through spraying, dip coating and other ways to evenly cover the surface of the shell, forming a dense protective layer. During the coating process, it is necessary to pay attention to control the thickness and uniformity of the coating to avoid defects such as sagging and blistering.
Wide range of electrical enclosure accessories
We can provide you with a wide range of electrical enclosure accessories, whether non-standard or standard parts, including: hinges, bolts, seals, brackets, panels, viewing windows, cables, terminals, and more.
Assembly and Testing and Quality Control
Assembly is the final step in shell production and involves the precise installation of components such as door, side and top panels, as well as the fixing of accessories such as internal brackets and rails. The selection and installation of fasteners is critical in this process, both to ensure sufficient tightening force and to avoid deformation of the shell or damage to components caused by over-tightening.
After the assembly is completed, a series of tests need to be carried out, including insulation resistance test, voltage resistance test, protection level test, etc., in order to verify the overall performance and safety of the electrical cabinet shell. At the same time, it is also necessary to carry out an appearance check to ensure that the shell is free of scratches, dents and other defects.
Establishment of a perfect quality control system, every link in the production process is strictly controlled to ensure stable and reliable product quality. This includes raw material inspection, process control (such as first piece inspection, process inspection and finished product inspection, etc.) and performance testing and other aspects. At the same time, strengthen staff training, improve the skill level and quality awareness of production staff.
metal bending services
Sheet metal bending material solutions
Supro MFG offers a robust stockpile of materials to help your products can get up and running with a quick turnaround.
Within an hour, the metal material is ready for the sheet metal bending process.
Aluminum Alloy
stainless steel
Copper
steel
Other
1060
6061-T6 / T5
6063
5052-O
5083
5754
7075
2A12
201
303
304
316
316L
420
430
440
H62
H65
H68
H90
C10100
C11000
C12000
C51100
Q235 - F
Q255
16Mn
12CrMo
# 45
20 G
Corrugated Steel Sheets
Fluorocarbon color steel
Embossed panels
Galvanized sheet
Get a list of sheet metal materials
0.6mm - 200mm
1220mm * 2440mm
Custom roll & Strips
0.05mm - 300mm
1220mm * 2440mm
Custom roll & Strips
0.5mm - 6mm
1200mm * 4000mm
Custom roll & Strips
0.5mm - 500mm
1500mm * 6000mm
Custom roll & Strips
- Laser Cutting
- Wire cutting
- CNC Machining
- bending
- stamping
- deep drawing
- welding fabrication
- Anodizing
- Painting
- Powder Coating
- More Customized Solutions
Why choose Supro MFG's Custom metal enclosure Services
Provide the most cost-effective cost solution for manufacturing and assembling products, expanding product competitiveness.
a technical team specializing in custom shell manufacturing for more than 30 years.
Advanced Manufacturing Equipment: Industry-leading custom metal enclosure manufacturer with in-house sheet metal, die casting, precision machining workshops, and surface coating workshops.
ISO 9001-2015, PPAP III level, RoHS, NEMA, CE and other certified production standards.
24H*7 online English technical support: The professional English team responds quickly to users’ technical questions online at any time.
help users from product design, prototype, batch manufacturing, surface treatment, assembly and packaging, transportation and a series of value-added services.
With in-house mechanics and chemistry laboratories, it can quickly monitor manufacturing process quality control to ensure the delivery of high-quality products.
Accept to sign NDA documents to ensure that customers’ product information is protected.
Door-to-door delivery in customizable secure packaging after complying with the delivery details agreed with the customer.
online custom metal electrical enclosure fabrication
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.
F.A.Q
Supro MFG is a China-based custom metal parts manufacturer, not a trading company. We specialize in custom sheet metal parts, prototypes and related metal fabrication processes under an ISO 9001:2015-certified quality system. Surface treatment, heat treatment and standard purchased components may be coordinated with qualified supporting suppliers when required by the project. Learn more about our factory.
Yes. We operate our own sheet metal fabrication, welding, laser-cutting and precision CNC machining workshops, covering more than 3,000 square meters. The original operating team includes 12 technical engineers, 36 skilled workers, six quality engineers and an English-speaking project-support team.
Yes. NDA requirements can be confirmed before detailed technical review. Customer drawings, specifications and patented technology are treated as confidential, and access is limited to authorized personnel involved in engineering, production, quality and project communication. Contact our project team before sending sensitive files if you require an NDA first.
Yes. Our engineering team can help develop manufacturable design files from your concept, reference sample or functional requirements. Supported formats may include STL, STEP, IGES, PDF and CAD. DFM feedback can be provided to improve manufacturability, control cost and prepare the design for prototyping. You can send your concept or requirements for an initial review.
Quality control begins with drawing and material review and continues through receiving inspection, First Article Inspection (FAI), In-Process Quality Control (IPQC), dimensional verification, surface-finish inspection, packaging inspection and final release. Inspection reports, photographs and third-party inspection support can be provided according to the agreed project scope.
Common payment methods include T/T, PayPal, Western Union and L/C. The applicable payment schedule and channel are confirmed during quotation and order review.
Yes. PPAP Level 3 documentation can be provided when it is included in the agreed quotation and quality-documentation scope. Tell us your PPAP requirements during RFQ review so the document package can be quoted correctly.
Our quotation is based on the specified material, manufacturing route, labor, tooling, surface finish, inspection scope and required documentation. We prioritize traceable materials, controlled production and verified quality rather than reducing price through unapproved substitutions or omitted inspection. The objective is a competitive total manufacturing cost with lower quality and delivery risk.
We do not set a general minimum order quantity. Suitable custom sheet metal projects may begin with a small number of prototypes or validation parts and later transition to low-volume or repeat production. Feasibility and pricing still depend on tooling, material, setup and process requirements.
Before production, we review material availability, tooling, process sequence, inspection scope and required finishing, then establish a project-specific production plan. Progress is monitored against key milestones, and capacity or scheduling risks are escalated when identified. Delivery commitments remain subject to approved requirements and force-majeure events.
Looking for a reliable custom sheet metal fabrication companies?
Talk To Supro MFG Expert Team
Contact us for competitive ex-factory prices,
and a full range of technical support services.