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In the industrial, electronic and other fields, equipment is often faced with dust, water vapor, impact and other complex environmental threats, NEMA enclosure as a key component of equipment protection, its adaptability is directly related to the stability and service life of the equipment.
Standard NEMA enclosure can meet the basic protection of equipment, but it is difficult to fit the unique parameters of different equipment and scene requirements, so custom NEMA enclosure is very important.
Article around the equipment custom NEMA enclosure to start, the first analysis of the core benefits of custom NEMA enclosure, and then step by step to dismantle the custom NEMA enclosure process, from a clear definition of the equipment needs and NEMA level of protection, to the custom NEMA enclosure structural design, material selection, and then to determine the production process and subsequent testing and certification.
At the same time, the article will also share practical strategies to reduce the cost of custom NEMA enclosure, to provide you with a comprehensive reference for customization.
Benefits of custom NEMA enclosures for specific equipment
The standard NEMA enclosure itself provides different levels of protection, such as dust, rain, corrosion and so on, but the custom NEMA enclosure is based on this, the standard NEMA enclosure will be modified and optimized according to the unique needs of the equipment, so as to bring the comprehensive value far beyond the standard product.
- custom NEMA enclosure can be based on the size of the equipment, interface layout, heat dissipation needs and other parameters of the three-dimensional modeling, to ensure maximum utilization of internal space, to solve the problem of heat dissipation of the equipment, to improve the reliability of the equipment and to extend the life of the equipment, and at the same time to simplify the installation process, to reduce the external modifications, to enhance the aesthetics and safety.
- custom NEMA enclosures can be selected from targeted materials based on the corrosiveness of the environment in which the equipment is located, temperature range, mechanical shock level and other conditions.
- Custom NEMA enclosures can be integrated into corporate VI systems, reinforcing brand identity through exclusive color schemes, logos and other designs.
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Integrate product design, bending, stamping, cutting, surface treatment, etc. to provide a series of manufacturing solutions.
How to custom NEMA enclosure for specific equipment
The standard NEMA enclosure itself provides different levels of protection, such as dust, rain, corrosion and so on, but the custom NEMA enclosure is based on this, the standard NEMA enclosure will be modified and optimized according to the unique needs of the equipment, so as to bring the comprehensive value far beyond the standard product.
Step 1: Determine the core needs of the equipment, clear custom NEMA enclosure rating
First of all, we need to confirm the custom NEMA rating according to the environment in which the equipment is located, such as NEMA 12 enclosure for non-corrosive environments such as warehouses, protection from dust and non-pressurized liquid splashes.
NEMA 4X enclosure is used in chemical or coastal areas, waterproof, dustproof and corrosion-resistant. NEMA 7/9 enclosures are used in hazardous areas.
Step 2: Custom NEMA enclosure structural design and material selection
software to accurately simulate the size of the equipment to ensure that the internal space of the custom NEMA enclosure meets the installation requirements, and at the same time, consider the interface location (e.g., switches, indicator lights) and external installation methods (wall or floor).
In the structural design, we also need to pay attention to the sealing of the NEMA enclosure, mechanical strength and heat dissipation, such as the use of neoprene gasket and continuous tongue and groove structure to ensure IP66/67 protection; hinge selection of stainless steel pins, locking options can be selected from bolts or stainless steel locks to improve impact resistance; equipment heat generation, the design of the cooling holes and with the filtration of the fan or refrigeration unit, and so on.
At the same time, we according to the core needs of equipment protection and cost budget targeted selection of materials:
- metal materials, such as stainless steel (304/316) for highly corrosive environments, mild steel lower cost but need additional anti-corrosion coating.
- Plastic, polycarbonate shells with a temperature range of -35-130°C, UV resistant and lightweight, suitable for outdoor or high temperature scenarios.
Step 3: Determine the fabrication process for the custom NEMA enclosure
The fabrication process of a custom NEMA enclosure is the core determinant of its ultimate performance (protection, durability, aesthetics). Process selection is closely related to the material, different materials are processed in very different ways.
Commonly used fabrication processes include sheet metal working processes (cutting, bending, forming, welding, sanding and finishing), die-casting, machining, surface treatment, injection molding, vacuum casting/re-molding, etc.
2.4 Step 4: Testing and Certification of Custom NEMA Enclosures
Testing and certification of custom NEMA enclosures is a critical step. Custom NEMA enclosures need to pass relevant NEMA tests, such as waterproof test, dustproof test, etc., to ensure compliance with NEMA standards and international IP ratings. It also needs to be tested and certified according to the requirements of the target market, e.g. it needs to pass the tests of UL, ETL, CSA and other organizations and obtain the certification.
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
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How to reduce the cost of custom NEMA enclosures?
Reduce the cost of custom NEMA enclosures, the core is not to sacrifice the core protection performance and compliance under the premise of materials, structural design, process and other aspects of the potential to avoid excessive customization and ineffective cost.
Material optimization, balancing performance and cost
The key to material optimization of custom NEMA enclosure is to match the lowest meet the needs of the material according to the actual use of the environment, rather than blindly selecting high-specification materials. For example, if the environment is not strong corrosion, no heavy impact, you can use polycarbonate (PC) instead of stainless steel (304/316). PC temperature (-35 ~ 130 ℃), UV resistance, and light weight, easy processing.
Simplify the design and avoid excessive complexity
When carrying out structural design, it is necessary to avoid excessive complexity and minimize unnecessary dimples, reliefs, and shaped cuts. Each additional feature means more processing time and higher mold costs.
Also standard geometric shapes can be used, such as standard round holes and square holes, and customized special shapes can be avoided to reduce programming and machining time
Choose the right machining process
Custom NEMA enclosures are preferred to sheet metal process. For small to medium volume production, the initial investment in sheet metal processing is much lower than injection molding. Vacuum casting/re-molding process is also suitable for small lot or prototype production, and the cost is lower than injection molding process.
The injection molding process is very expensive in terms of tooling costs and is therefore only suitable for projects with very large production volumes. Only when the production volume is very high in that year, the unit cost of injection molding is lower than that of sheet metal.
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.
Why choose Supro MFG to custom NEMA enclosure for you?
If you are struggling for custom NEMA enclosure, please don't hesitate to contact us, we can provide you with custom NEMA enclosure one-stop service to make your equipment run efficiently, stably and safely! We can offer you:
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.
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In the industrial and electronic fields, equipment is often threatened by dust, moisture and other environmental threats, NEMA enclosure is a key protective component, while the standard NEMA enclosure has certain limitations, custom NEMA enclosure can perfectly make up for this pain point, so custom NEMA enclosure for your equipment is highly necessary.
If you are looking for Outdoor Metal Enclosure Suppliers, please contact us now,
Supro MFG can provide you with professional outdoor metal enclosure selection advice and enclosure one-stop service! Provide a solid fortress for your outdoor equipment, so that your project will be stable and efficient!
FAQ
How to determine the NEMA rating of a custom NEMA enclosure
Need to combine with the equipment installation environment to determine. For example, NEMA 12 enclosure is suitable for indoor non-corrosive environments such as warehouses, anti-dust and non-pressurized liquid splash; NEMA 4 enclosure is suitable for indoor and outdoor non-corrosive scenarios; NEMA 4X enclosure is used in corrosive environments such as chemical industry, coastal, and other corrosive environments, and also need to pay attention to avoid the blind pursuit of high grade.
What is the difference between NEMA rating and IP rating?
NEMA rating is a North American standard, covering dustproof, waterproof, anti-corrosion, explosion-proof and other comprehensive requirements; IP rating is an international standard, only for dustproof and waterproof. For example, NEMA 4X corresponds to IP66, but with the added requirement of corrosion resistance, it needs to pass 1000 hours of salt spray test.
What certifications are required for custom NEMA enclosures?
The base needs to pass UL/CSA NEMA rating test, North American market needs to pass UL, Europe needs to have CE certification. Explosion proof scenarios (e.g. NEMA 7/9) also require ATEX/IECEx certification.
