Professional Custom Enclosure Manufacturer In China
- Custom Sizes Available
- Comprehensive Enclosure Manufacturing Capabilities
- Maintain Consistency For Batch Parts
- CostEffective
- Fast Delivery
- Experienced Technical Team
- AS9100-Certified
Why Choose Our Custom Enclosure Manufacturing Services?
Although standard enclosures can shorten procurement time, their dimensions, openings and internal mounting methods often do not fully match actual application requirements. Our custom enclosure manufacturing service produces enclosure components that meet specifications based on the actual functions and operating conditions of your components.
DSR focuses on the internal clear space, interface locations, assembly reference points, cable bend radii, access paths, and mounting methods of these custom enclosures to help you minimize the following issues:
- Connector is misaligned with the housing opening
- PCB, terminals or power supply interfere with the door or cover plate of the enclosure
- On-site drilling damages the housing’s coating, seal, or appearance
- Ventilation position is unreasonable, internal temperature of the enclosure rises
- The prototype can be assembled, but the dimensions of the enclosures in subsequent batches are inconsistent
Two Custom Enclosure Solutions Offered by DSR
DSR can provide you with high-precision, custom enclosure solutions. We support the entire enclosure manufacturing workflow, from prototyping to full-scale production, helping our customers turn CAD designs into finished enclosure assemblies more quickly.
Secondary Customization of Standard Enclosures
If the dimensions and protective structure of a standard enclosure basically meet your requirements, we can add CNC openings, display windows, interfaces, mounting holes, markings, etc., after confirming the materials and wall thickness. This solution reduces the structural development work involved in the overall process, but any modifications that may affect the enclosure’s seal will require re-evaluation.
Fully Customized Enclosures
Of course, we can also manufacture fully customized enclosures based on your 2D/3D drawings. Depending on the specifications and requirements of your enclosure, DSR will determine the manufacturing process based on our actual CNC, sheet metal fabrication, welding, and assembly capabilities. We will also optimize the enclosure’s internal layout, interfaces, and maintenance structure.
Types of Custom Enclosures DSR Can Manufacture
As a manufacturer with 14 years of experience, DSR can custom-manufacture a wide variety of enclosures that meet your specifications based on your drawings. We are committed to providing our customers with solutions that offer better value for money and higher quality standards.
Our electronic enclosures precisely match PCB dimensions, interface openings, and mounting post positions. They also support EMI/RFI shielding treatment and heat dissipation structure optimization. We support ±0.05mm machining precision, ensuring that every assembly fits perfectly.
We are well-versed in electrical safety requirements such as UL, IEC, CE. From material flame retardant ratings to grounding terminal design and insulation spacing layout, we manufacture electrical enclosures according to certification standards throughout the entire process. We also offer custom enclosures with protection ratings ranging from IP54 to IP68.
From heavy machinery control cabinets to automated production line equipment enclosures, our industrial enclosures feature thickened steel/aluminum plate construction, offering impact resistance, corrosion resistance, and vibration resistance. We also use powder coating and anodic oxidation surface treatment to ensure that our industrial enclosures can withstand various extreme environments.
DSR offers laser cutting, CNC bending, precision welding, and a comprehensive range of surface treatment processes. You can choose from materials such as cold-rolled steel, stainless steel, and aluminum alloys. We can customize metal enclosures to meet your specific application needs and ensure excellent batch consistency.
For small batch production of plastic enclosures, you can choose CNC machining. For medium to large batch manufacturing of plastic enclosures, we can recommend the optimal process route based on your quantity and budget. We provide various plastic materials such as ABS, PC, nylon, and also support multiple processing techniques including injection molding.
We can design and manufacture enclosures for outdoor and corrosive environments in accordance with the NEMA/UL 50E standard. Each batch of enclosure assemblies undergoes spray and dust tightness testing to ensure their quality fully meets your application requirements.
Our Customization Capabilities for Enclosures
DSR has exceptional custom manufacturing capabilities and can produce enclosures with a variety of specific features tailored to your needs. Our customized solutions cover the dimensions, shapes, holes and cutouts of the enclosures. Moreover, these enclosures also have excellent surface quality and long service life.
When determining enclosure dimensions, we take into account the layout of internal components such as partitions, guide rails, mounting flanges, and hinged doors to ensure maximum utilization of internal space. DSR can manufacture rectangular, L-shaped, desktop, console-style, or other custom-shaped enclosures based on drawings.
Using laser cutting and CNC machining processes, we can precisely cut holes in the enclosure. The positioning accuracy of the holes is ±0.1 mm, and the cut edges are smooth and burr-free. We also ensure the sealing structure of the enclosure. The enclosures you receive are ready for assembly right out of the box, requiring no secondary processing.
We conduct thermal evaluations based on your internal power consumption and ambient temperature to determine the optimal heat dissipation path. These solutions include louvered cooling grilles, waterproof breathable valves, and more. This is to ensure that the internal temperature of the enclosure remains within a safe range while your equipment operates at full load.
We evaluate the mounting locations for components such as PCB mounting posts, threaded holes, and brackets. Our workshop will design the internal installation system based on your component layout drawings. By flexibly combining welded and detachable structures, we ensure that you can assemble conveniently and flexibly.
Based on your operational requirements, we can choose from a variety of opening styles, including single-door, double-door, lift-up lids, and quick-release covers. For hinges, we use either stainless steel continuous hinges or concealed hinges. Additionally, the door panel gaskets are seamless and will not come loose.
We will select multiple processes such as silk screen printing, digital printing, laser marking, etc., according to your enclosure requirements. From brand logos to safety warnings, we can manufacture them for you, and they also have excellent wear resistance. Please provide vector files, color codes, font outlines, and graphic positioning requirements.
DSR Custom Enclosure Manufacturing Capabilities
DSR has comprehensive manufacturing capabilities. No matter what type of enclosure you need, we can select the most suitable custom manufacturing process based on your specific requirements. We guarantee excellent dimensional accuracy and product quality.
DSR is equipped with 3-axis and 4-axis CNC machining centers and CNC milling production lines, with machining tolerances stably controlled within ±0.05mm. We support materials including aluminum alloy, stainless steel, copper, and engineering plastics. In addition, DSR is capable of machining a wide variety of complex-shaped housings and supports mass production.
DSR offers processes such as laser cutting and CNC bending, with springback for different sheet thicknesses and materials compensated for in advance. In addition, our welding processes include TIG welding, MIG welding, and laser welding. We ensure that the enclosure panels are tightly joined and the corners are perfectly aligned.
This process is very suitable for manufacturing plastic enclosures for consumer electronics, handheld devices, and electrical enclosures, covering materials such as ABS, PC, PC+ABS, nylon, and flame-retardant plastics. Whether it’s small batch to large-scale production, we can complete it well and ensure that these enclosures maintain consistent dimensions.
DSR’s die-casting process covers a variety of materials, including aluminum alloys, and is capable of forming complex thin-walled structures with wall thicknesses as low as 0.5 mm. We also offer one-stop service for post-processing, including CNC finishing, coating, and anodizing. We can ensure that the dimensional accuracy and surface quality of the enclosures meet the required standards.
From Prototypes to Mass Production
PrototypeUse a small number of sample units to verify the dimensions, interfaces, door assemblies, cables, heat dissipation, and maintenance space of the custom enclosure.
Small BatchesWe support small-batch manufacturing of custom enclosures, allowing you to verify the functionality of the enclosures in actual assembly or field environments.
Mass ProductionWe will use approved drawings, procedures, tooling and quality requirements for subsequent batch production.
Why Choose DSR to Manufacture Your Custom Enclosures?
DSR has a comprehensive range of manufacturing processes and can provide you with one-stop manufacturing services for various types of enclosures.
We have been serving customers in North America and Europe for over 10 years, and we are very familiar with UL, CE, and NEMA compliance requirements.
We have a team of professional engineers who can provide free DFM analysis and recommendations based on your drawings.
Our standardized process parameters and inspection requirements can ensure that mass-produced enclosures have excellent consistency.
You can communicate directly with our engineers regarding drawings, materials, interfaces, tolerances, and assembly requirements, so that we can better understand your needs.
1 Prototype making, small-batch trial production, and large-scale mass manufacturing, we can handle all of them. We are committed to providing you with the most flexible custom enclosure processing services.
Our Quality Control for Custom Enclosures
DSR has established a quality control system covering the entire process from incoming materials, manufacturing processes, to finished products. We conduct rigorous incoming inspections on every batch of aluminum, steel, and stainless steel raw materials to ensure that their composition, hardness, and thickness meet specifications.
During processing, we also conduct inspections. We use equipment such as coordinate measuring machines (CMM) and surface roughness testers to monitor the dimensional accuracy and surface quality of custom enclosures in real time.
In addition, before finished products leave the factory, our quality inspectors will perform full-dimensional inspection according to customer drawing tolerance requirements and industry standards, and conduct appearance, assembly, and functional sampling inspections to ensure that every product meets acceptance standards.
Our Assembly & Integration Services
DSR provides integrated assembly services ranging from structural components to semi-finished products, such as the insertion of pressed-in nuts and studs, the application of sealing strips, and the installation of hardware components.
Our assembly station is also equipped with torque control and error-proofing fixtures. Once assembly is complete, we will conduct a full inspection in accordance with your assembly drawings.
Material Selection for Our Custom Enclosures
Our custom shell solutions support a variety of materials, each with unique characteristics. You can choose the most suitable material according to your individual application needs.
| Material Type | Main Value | Needs Confirmation |
| Aluminum Alloy | Lightweight, easy to machine, relatively good thermal conductivity, can be anodized | Actual grade/alloy designation, thickness, strength, anodizing color and masking |
| Stainless Steel | Corrosion-resistant, easy to clean, structurally stable | 304/316 and other grades, surface finish, welding and passivation |
| Carbon Steel | Good balance of strength and cost | Anti-rust coating, powder coating, edge and weld treatment |
| Galvanized Steel | Basic corrosion resistance, suitable for certain industrial structures | Cut-edge protection, welding effects, and surface requirements |
| Engineering Plastics | Insulating, lightweight, RF-friendly | Specific materials such as ABS, PC, nylon, and flame-retardant/UV requirements |
How to Choose the Right Custom Enclosure for You?
Many of our customers are unsure which types of custom enclosures are best suited for their needs. We’ve created this selection guide to help you make more informed purchasing decisions. It will help you clarify your core requirements before requesting a quote and make the communication and quoting process more efficient and precise.
| Decision Question | What Needs to Be Confirmed | Impact on Design |
| What will it house? | PCB, power supply, terminals, fan, display, and cables | Internal dimensions, mounting points, and interfaces |
| Where will it be installed? | Indoor, outdoor, wall-mount, floor-standing, rack-mount, or embedded in equipment | Form factor, support structure, and mounting hardware |
| What environment will it face? | Water, dust, salt, cleaning agents, oil, temperature, and impact | Material, sealing, protection level, and coating |
| How will it dissipate heat? | Heat load, ambient temperature, allowable temperature rise, and airflow | Ventilation, fan, thermal conduction, or heat exchange solution |
| What interfaces are required? | Connectors, buttons, display, cable glands, and access doors | Cutout locations, orientation, tolerances, and service clearance |
| What compliance is required? | IP, NEMA, UL, EMI, flame retardancy, or industry-specific requirements | Structure, material, testing, and documentation |
| What quantity is needed? | Prototype, small batch, annual volume, and repeat orders | Process selection, tooling, inspection, and unit cost |
| To what stage should the finished product be delivered? | Bare enclosure, hardware-installed, sub-board assembled, labeled, or fully integrated | Scope of supply, quality responsibility, and lead time |
Our Custom Enclosure Surface Finishes
We will evaluate the most suitable surface treatment based on the material of your enclosures and their operating environment. We offer a variety of surface treatment processes. We also conduct rigorous testing of coating thickness and adhesion.
Anodizing is commonly used for aluminum alloys, forming a dense oxide film on its surface, with a thickness controllable between 5–25μm. It can enhance the surface corrosion resistance, wear resistance, and appearance of the enclosures.
Powder coating is commonly used on steel or aluminum enclosures to provide color and additional surface protection. This process enables custom enclosures to have excellent chemical corrosion resistance and anti-UV fading performance.
For custom enclosures made of stainless steel and zinc alloy, passivation creates a dense protective layer on their surfaces. This process does not alter the dimensions, appearance, or electrical conductivity of the enclosures.
Our sandblasting process removes machining marks, burrs, and minor imperfections from custom housings. These housings feature a smooth, uniform matte finish. It also improves the adhesion of subsequent coatings.
Our polishing process includes both mechanical polishing and electropolishing. Through polishing, we can effectively improve the surface finish of custom enclosures, with surface roughness as low as Ra 0.4 μm.
We use an electroplating process to form a dense metal layer on the surface of custom enclosures. This metal layer is conductive, corrosion-resistant, and has a decorative finish. Therefore, this process is well-suited for connector enclosures that require EMI/RFI shielding performance.
We use sanding belts or grinding wheels to create uniform, fine linear patterns on the surface of custom casings, giving the product a sophisticated metallic finish. This process can also effectively conceal fingerprints, minor scratches and other usage marks.
Through a chemical oxidation reaction, we create a dense conversion coating on the surface of custom enclosures. This process hardly changes the original dimensions of the part, and is especially suitable for structural parts with precise fit tolerance requirements.
Our Custom Enclosure Applications
Different industries have different requirements for enclosures, and DSR can develop tailored enclosure solutions based on the specific usage scenarios in your industry. From material selection to surface treatment, we will create matching solutions targeting the real pain points of each industry.
PLC control cabinets, sensor housings, industrial computer enclosures, and other equipment are frequently exposed to harsh environments over long periods. DSR offers integrated sheet metal bending and welding solutions. We also apply powder coating and passivation treatments to these devices.
Distribution boxes, circuit breaker housings, inverter enclosures and other equipment have high requirements for electrical safety. We can ensure that these custom enclosures have sufficient insulation performance while solving the heat dissipation problems of high-power components.
Base station enclosures, fiber optic distribution boxes, switch chassis and other equipment all need to have EMI/RFI shielding performance. We provide surface treatment solutions such as electroplating and conductive coatings to ensure that the shielding effectiveness of these equipment meets customer standards.
Equipment such as test instrument housings and precision measuring instrument housings place extremely high demands on the structural precision and electromagnetic shielding stability of their enclosures. We offer high-precision CNC machining, with tolerances controlled to within ±0.05 mm.
Equipment such as street light control boxes and outdoor charging stations is exposed to ultraviolet rays, rainwater, and other environmental conditions for extended periods, so weather resistance is a necessary performance requirement for these devices. We offer powder coating and passivation combination solutions to ensure our custom casings have excellent UV fading resistance and a long service life.
Medical instrument housings, portable medical device enclosures, etc. have strict requirements for material hygiene and chemical disinfection corrosion resistance. We can provide medical-grade stainless steel or aluminum alloy CNC machining, and support seamless welding structure processing.
For products like custom speaker enclosures and smart home controllers, exquisite appearance is often the first factor attracting customers to purchase. We offer a variety of manufacturing solutions, including precision CNC machining, injection molding, and anodizing, with tolerances as tight as ±0.05 mm.
DSR Custom Enclosure Technical Specifications
- Technical Specifications
- Process Specifications
| Technical Item | DSR Actual Capability | Customer to Provide |
| Maximum Enclosure Size | 2000mm×1500mm×2000mm | Overall dimensions, internal clearance, and installation constraints |
| Material Thickness Range | 1mm | Material grade, condition, and target thickness |
| CNC Hole/Cutout Dimensional Tolerance | ±0.01 | Critical holes/slots, datums, and positional tolerances |
| Bending Angle Tolerance | ±1.0° | Bending sequence, minimum bend radius requirements, and texture direction constraints |
| Minimum Internal Corner Radius / Tool Radius | R0.1 | Which corners must remain sharp and the functional reason |
| Minimum Wall Thickness / Rib Width | 2mm | Load-bearing, clamping, and deformation requirements |
| Surface Roughness | Ra0.4 | Requirements for cosmetic surfaces, mating surfaces, and sealing surfaces |
| Samples and MOQ | No MOQ | Sample Quantities, Batch Sizes, and Annual Demand |
| Technical Item | DSR Actual Capability |
| CNC Machining Tolerance | ±0.05 mm |
| Sheet Metal Cutting Tolerance | ±0.20 mm |
| Bending Angle Tolerance | ±1.0° |
| Injection Molding Tolerance | ISO 2768 / ±0.1 mm |
Custom enclosures refer to external protective housings that we design and manufacture specifically based on customers’ particular products, equipment, or application scenarios, including targeted design considerations for material selection, structural dimensions, opening layouts, surface treatments, and protection ratings.
Standard enclosures use fixed dimensions and structures, suitable for projects with more general requirements. Custom enclosures can be adjusted according to internal components, interfaces, installation and environment.
When selecting the solution that best suits your project, you should compare the cost of custom development with the subsequent costs of modification, assembly, and maintenance, not just the unit price of the enclosure.
- Our customers upload and send us information on the website
- Our engineers review your drawings
- We will contact you as soon as possible and provide a quote
- Sample or production
- Inspection
- Packaging and delivery
Aluminum is suitable for lightweight applications and heat dissipation; stainless steel is suitable for corrosive and clean environments; carbon steel is suitable for applications requiring a balance of strength and cost; and plastic is suitable for insulation and lightweight requirements.
Of course, you also need to consider the thickness, mechanical requirements, surface treatment, and quantity of the custom enclosure to decide which material to choose.
Enclosure design refers to the systematic engineering planning process we undertake for a product’s enclosure before manufacturing.
For example, we will discuss the structural layout, material selection, dimensional tolerances, opening positions, heat dissipation solutions, sealing protection, assembly methods, surface treatments, etc., of custom enclosures.
In terms of application scenarios, they can be categorized into wall-mounted enclosures, floor-standing enclosures, rack-mounted enclosures, portable enclosures, and embedded enclosures.
A plastic enclosure refers to a product protective shell made of engineering plastic materials through injection molding or CNC machining. Its main advantages are light weight, low cost, and good insulation performance.
It’s possible. Openings, windows, ventilation, fasteners, and cable entries can all alter the sealing path of custom enclosures. Therefore, you need to verify this through testing during the design phase.
You first need to provide information such as internal heat load, ambient temperature, installation location, and allowable temperature rise. We will then evaluate your requirements and develop a specific heat dissipation solution, such as natural convection, forced ventilation, thermal conduction, or heat exchange.
Additionally, the enclosure’s sealing and heat dissipation need to be designed together.
Steps for custom sub enclosure：
- First, you need to determine the type of enclosure.
- You need to calculate the appropriate enclosure volume based on the specifications of the woofer unit.
- Select suitable enclosure materials and draw up cutting diagrams.
- Assemble and seal the enclosure.
- Fill the interior with silent insulation cotton.
A custom acrylic enclosure refers to a protective casing made from acrylic sheet material (PMMA) through processes such as laser cutting, CNC engraving, or thermoforming.
It depends on the material, manufacturing process, batch size, and structural complexity of the custom enclosures.
