55×25mm Aluminum Power Supply Enclosure Housing

Boyuan 55×25mm Aluminum Power Supply Enclosure Housing is a wide, slim electronic device housing manufactured with an aluminum alloy extrusion structure, with an external cross-section size of 55mm (width) × 25mm (height), and the length can be customized arbitrarily according to actual equipment requirements.

The aluminum extrusion electronic enclosure can be designed with corresponding mounting slots or support structures according to the internal structure, for installing PCBs and other electronic components. The interior of the housing is designed with standard circuit board card slots, and the PCB can be directly inserted and fixed without additional screws, greatly improving assembly efficiency.

Compared with plastic boxes, aluminum alloy enclosures have better structural strength and a metal texture, and can achieve custom structures such as interfaces, mounting holes, threaded holes, and slots through CNC machining.

Product Core Advantages

01 | 55×25mm Wide and Slim Design

The 55mm wide × 25mm high cross-section size provides an ideal packaging solution for electronic equipment.

The 55mm width is wider than the common 52mm specification, accommodating larger PCB layouts and supporting more side-by-side function modules and interface design, meeting multi-channel input/output layout requirements; the 25mm height maintains a slim device appearance while providing ample component mounting space, accommodating small transformers, electrolytic capacitors (typically 20-22mm in height), relays, and medium-height components, supporting the integration needs of relatively complex circuit systems.

02 | Aluminum Extrusion Structure

The enclosure body is formed by aluminum alloy profile extrusion. The cross-section size of the aluminum extrusion enclosure is fixed, while the length can be cut according to actual product requirements. Therefore, the same specification enclosure can adapt to PCBs and electronic modules of different lengths. This structure is especially suitable for electronic products requiring series development.

03 | Suitable for PCB Mounting

The aluminum extrusion electronic enclosure can be designed with corresponding mounting slots or support structures according to the internal structure, for installing PCBs and other electronic components. The interior is standard-equipped with circuit board card slots, and the PCB can be directly inserted and fixed without additional screws.

04 | CNC Custom Machining Support

The standard profile is only the starting point. Boyuan Hardware can perform CNC machining on the 55×25mm aluminum enclosure according to customer drawings, including:

• Interface openings (USB, RJ45, aviation plugs, BNC interfaces, power interfaces, SMA antenna interfaces, etc.)
• Screw holes and positioning holes
• Threaded holes and counterbore holes
• Heat dissipation slots and ventilation holes
• Screen window openings
• Button holes and switch holes
• Mounting holes and wall-mounting holes
• Grooves and steps
• Chamfering
• Other custom structures

05 | Length Customizable to Product

55×25mm is the cross-section specification of the enclosure, and the product length can be cut according to the actual equipment dimensions. The specific machinable length is confirmed according to material, surface treatment, and product requirements.

06 | Efficient Heat Dissipation Performance

Aluminum alloy has excellent thermal conductivity. Combined with the 55mm wide-body design, it can effectively help internal components dissipate heat and extend equipment service life.

07 | Metal Enclosure Combines Structure and Appearance

Aluminum alloy is lightweight and has good structural performance, while retaining a natural metal texture. Through surface treatments such as brushing, sandblasting, and anodizing, different appearance effects can be obtained, giving electronic equipment a more professional product appearance.

Technical Specifications

Note: Specific material grades, wall thickness, length ranges, dimensional tolerances, and surface treatment colors shall be subject to actual product drawings and order requirements.

What Products Is the 55×25mm Aluminum Enclosure Suitable For?

55×25mm Aluminum Power Supply Enclosure Housing belongs to the wide-body slim aluminum enclosure category — the 55mm width accommodates larger PCBs and more side-by-side function modules; the 25mm height maintains a slim appearance while providing greater internal space than slim specifications. This specification is widely used in power supplies, instruments, meters, electronics, communications, automation, sensors, smart cards, industrial control, precision machinery, and other industries.

1. Power Modules

The wide-body design of 55×25mm is very suitable for various power products:

• Switching power supply modules
• Power adapters
• Vehicle power supply enclosures
• Inverter enclosures
• Rectifier aluminum housings
• DC-DC converter modules
• Charger modules
• Communication power supplies
• AC/DC power supplies, regulated power supplies

Why is 55×25mm suitable for power modules? Power modules usually need to accommodate components such as electrolytic capacitors (typically 20-22mm in height), small transformers, and heat sinks. The 25mm height provides ample mounting space. The 55mm width is wider than the common 52mm specification, accommodating wider PCB layouts and supporting multi-channel input/output interfaces. The aluminum alloy material also helps power devices dissipate heat efficiently.

2. Communication Modules and Wireless Equipment

The wide-body design of 55×25mm is very suitable for various communication products:

• Communication modules
• Wireless platforms
• GPS/GPRS enclosures
• Signal conversion modules
• Signal booster enclosures
• Wireless platform terminals
• Data transmission modules
• Video servers
• Routers, wireless receivers
• RF module enclosures

Why is 55×25mm suitable for communication modules? Communication modules usually need a wider PCB layout to accommodate RF circuits, antenna interfaces (SMA), power interfaces, data interfaces, and other functional modules. The 55mm width is wider than the common 52mm specification, accommodating more antenna interfaces and communication interfaces placed side by side.

3. Measuring Instruments and Testing Equipment

• Instrument and meter enclosures
• Data acquisition instruments
• Signal generator enclosures
• Power analyzers
• Testing equipment
• Precision measuring instruments
• Oscilloscope modules

4. Industrial Control and Automation Modules

• Industrial controllers
• Programmable logic controller (PLC) modules
• Motion control modules
• Motor drive modules
• I/O expansion modules
• Automation control equipment
• Industrial control chassis supporting modules

5. Shielding Boxes and Anti-Interference Applications

The 55×25mm aluminum enclosure can serve as a good electromagnetic shielding solution:

• Electronic shielding boxes
• Anti-interference device enclosures
• High-frequency module shielding
• Precision circuit protection boxes

The aluminum alloy material itself has good electromagnetic shielding performance, effectively preventing electromagnetic interference.

6. Sensors and Smart Devices

• Sensor modules
• Data acquisition terminals
• Smart card devices
• IoT terminals

7. Medical and Testing Equipment

• Medical equipment enclosures
• Testing modules
• Monitoring equipment modules
• Portable medical instruments

8. Public Address and Audio Equipment

• Public address system equipment
• Amplifier circuits
• Audio equipment

What Can Be Customized?

Surface Treatment

Anodizing

Anodizing is one of the commonly used surface treatment methods for aluminum enclosures. It can change the appearance and surface properties of the aluminum surface and achieve different color effects.

Sandblasting

Sandblasting can form a uniform matte texture on the aluminum surface, suitable for industrial electronic equipment and instrument enclosures.

Brushing

Brushing can form regular metal textures, allowing the product to maintain an obvious aluminum alloy metal texture.

Laser Engraving

The following can be machined on the surface of the 55×25mm aluminum enclosure:

• Logo
• Product model
• Interface identification
• Product number
• Text and patterns

Silkscreen Printing

Suitable for machining multi-color logos, text, and function identification.

Professional Aluminum Enclosure Custom Machining

We not only produce standard aluminum enclosures, but can also customize according to customer product structures.

Customers only need to provide:

2D drawings / 3D models / physical samples / product dimensions

We can then perform machining evaluation according to actual product requirements.

CNC Machining Meets Non-Standard Requirements

For products that cannot be directly satisfied by the 55×25mm standard profile, customization can be achieved through subsequent CNC machining.

For example:

Interface openings + screen windows + mounting holes + threaded holes + heat dissipation slots + grooves + steps + logo

All can be machined according to customer drawings.

Product Selection Guide

If Your PCB Width Is Close to 55mm

55×25mm is an ideal choice — the 55mm width provides more ample PCB routing space and more side-by-side interface layout, and is 3mm wider than the common 52mm specification.

If Your Device Contains Medium-Height Components

The 25mm height can accommodate small transformers, electrolytic capacitors (20-22mm), relays, and medium-height components, suitable for electronic equipment requiring a certain internal vertical space.

If Your Device Needs a Slim Appearance

The 25mm height maintains a slim appearance while providing greater internal space than the 15-22mm specifications, balancing aesthetics and functional completeness.

If You Need Compatibility with Multiple Interfaces

The 55mm width supports side-by-side layout of multiple interfaces such as RJ45, aviation plugs, BNC, USB, and SMA antenna interfaces, suitable for communication and measurement equipment requiring rich interfaces.

If Your Device Needs Good Heat Dissipation

The aluminum alloy enclosure has excellent thermal conductivity. Combined with the 55mm wide-body design, it can effectively help internal components dissipate heat.

If PCB Lengths Differ

The profile can be cut according to product length, and the same cross-section specification can adapt to products of different lengths.

Workshop Show

FAQ

1. What products is the 55×25mm aluminum enclosure suitable for?

55×25mm belongs to the wide-body slim aluminum enclosure category, suitable for power modules, communication modules, wireless platforms, instruments and meters, data acquisition equipment, industrial controllers, shielding boxes, signal boosters, vehicle power supply enclosures, video servers, etc. The 55mm width provides ample PCB layout space, and the 25mm height accommodates medium-height components while maintaining a slim appearance.

2. Is 55×25mm the length of the enclosure?

No. 55×25mm refers to the cross-section size of the enclosure (width × height). The 55×25mm Aluminum Power Supply Enclosure Housing length can be cut according to actual equipment and PCB length.

3. Can the length of the 55×25mm aluminum enclosure be customized?

Yes. The length of the aluminum extrusion enclosure can be cut according to product requirements. The specific length needs to be confirmed in combination with material, surface treatment, and product structure.

4. Can the 25mm height accommodate electrolytic capacitors?

Yes. Common electrolytic capacitors are usually 20-22mm in height, and the 25mm internal height can fully accommodate them. Specific confirmation is needed according to your component dimensions.

5. What is the difference between 55mm width and 52mm?

55mm is 3mm wider than the common 52mm specification, accommodating larger PCBs or more side-by-side interface layouts, especially suitable for equipment requiring wider PCBs or multi-channel input/output interfaces.

6. Can heat dissipation holes be made on the aluminum enclosure?

Yes. Boyuan Hardware can machine heat dissipation slots, ventilation holes, and other heat dissipation structures according to customer drawings to help equipment dissipate heat.

7. Can SMA antenna interfaces be machined?

CNC machining can be performed on the corresponding interface positions according to customer drawings. The 55mm width can accommodate side-by-side layout of multiple interfaces. Whether it is specifically suitable for machining needs to be confirmed according to interface dimensions and enclosure structure.

8. Can a PCB be installed?

Yes. The 55×25mm aluminum enclosure is standard-equipped with internal circuit board card slots, and the PCB can be directly inserted and fixed without additional screws. Corresponding mounting structures can also be designed according to PCB dimensions and mounting method.

9. Can end plates be customized?

Yes. The dimensions, hole positions, and structure of the end plates can be machined according to product requirements.

10. Can a logo be made?

Yes. Logo machining methods such as laser engraving or silkscreen printing can be selected according to product requirements.

11. Can different colors be selected?

Yes. The aluminum enclosure can achieve different appearance effects through processes such as anodizing, and the color can be arbitrarily customized according to customer requirements.

12. What if 55×25mm is not suitable for my PCB?

You can send us the PCB dimensions, product structure, or 3D model. Boyuan Hardware can help confirm whether the 55×25mm specification is suitable according to actual dimensions, and can also choose other aluminum profile specifications or perform custom machining.