52×22mm Handheld Terminal Aluminum Enclosure for Smart Devices

52×22mm Handheld Terminal Aluminum Enclosure for Smart Devices — a slim yet functional extruded aluminum housing that finds the middle ground between ultra-thin profiles and taller enclosures. The 52mm width supports standard wide PCBs and side-by-side mounting of screens, card slots, buttons, and sensors, while the 22mm height clears small electrolytic capacitors (16-20mm), micro relays, taller SMD parts, and small heat sinks. The profile body is cut to the required length and completed with end plates, CNC machining, and related processes. Internal card slots allow the PCB to slide in and be fixed without extra screws.

Compared with plastic housings, the aluminum body provides better structural strength and a metal finish, and supports CNC-machined interfaces, mounting holes, threaded holes, card slots, and heat dissipation structures. Boyuan Hardware, with over 20 years of experience and a ~10,000㎡ factory, provides cutting, CNC, drilling, tapping, surface treatment, laser engraving, silkscreen, inspection, and assembly.

Core Advantages

01 | 52×22mm Wide and Slim Design, More Ample Space

The 52mm wide × 22mm high cross-section size provides an ideal packaging solution for slim smart devices.

The 52mm width can accommodate standard wide PCB layouts and support side-by-side design of multiple interfaces and function modules; the 22mm height keeps the device slim while providing about 16% more internal space than the 19mm specification, accommodating taller components such as small electrolytic capacitors (16-20mm high), micro relays, slightly taller SMD components, or better heat dissipation structures.

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.

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 52×22mm aluminum enclosure according to customer drawings, including:

• Interface openings (USB, Type-C, RJ45, DC power interfaces, etc.)
• Indicator light holes and screen windows
• Button holes and switch holes
• Card swiping slots
• Fingerprint recognition module openings
• Mounting holes and positioning holes
• Threaded holes and counterbore holes
• Heat dissipation slots and ventilation structures
• Grooves and steps
• Chamfering
• Other custom structures

05 | Length Customizable to Product

52×22mm 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 52mm wide-body design and 22mm internal space, small heat sinks can be installed or internal air circulation space can be increased, effectively helping internal components dissipate heat and extending 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 devices a more professional product texture.

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 52×22mm Aluminum Enclosure Suitable For?

52×22mm belongs to the wide-body slim aluminum enclosure category — the 52mm width can accommodate standard wide PCBs and side-by-side layout of multiple function modules, and the 22mm height provides more ample internal space than 19mm while maintaining a slim profile. The 22mm thickness is 3mm taller than 19mm, accommodating small electrolytic capacitors (commonly 16-20mm high), micro relays, slightly taller SMD components, or better heat dissipation structures, making it the best balance point between functional completeness and slim profile in slim devices.

1. Barcode Scanners

52×22mm is an ideal packaging solution for barcode scanners:

• Handheld barcode scanners
• QR code scanners
• Industrial scanning guns
• Supermarket/retail scanning equipment
• Logistics and express scanning terminals
• Warehouse management scanners

Why is 52×22mm suitable for barcode scanners? Barcode scanners need an ergonomic grip. The 52mm width provides a stable grip, and the 22mm thickness makes the device slim and lightweight. Compared with the 21mm specification, the extra 1mm of internal space in the 22mm height can accommodate a taller decoding board or better battery capacity, suitable for scanning devices requiring higher performance or longer battery life.

2. POS Machines and Payment Terminals

• Mobile POS machines
• Smart cashier terminals
• Payment card swiping devices
• Scan-to-pay terminals
• Desktop payment devices

Why is 52×22mm suitable for POS machines? POS machines need to integrate multiple functional modules such as card slots, password keyboards, NFC card readers, displays, and printers. The 52mm width provides ample layout space, and the 22mm thickness ensures portability while providing more space than slim specifications to accommodate batteries and components.

3. Smart Access Card Readers

• Access control card reader enclosures
• Building intercom modules
• Attendance terminals
• Visitor management equipment

The 52mm width matches the standard 86-box installation size, and the 22mm slim design makes the device slim when wall-mounted, aesthetically pleasing and unobtrusive. The 22mm height can accommodate card reading coils, relays, power modules, and other components.

4. Handheld Terminals and Data Collectors

• Industrial handheld terminals
• Data collectors
• Inspection terminals
• Warehouse management handheld devices
• Mobile law enforcement terminals

5. Bluetooth Speakers and Audio Equipment

• Portable Bluetooth speakers
• Wireless microphone receivers
• Bluetooth audio receivers
• Small amplifier modules

Why is 52×22mm suitable for Bluetooth speakers? The 22mm height provides ample space for small speaker units and batteries, and the 52mm width can accommodate multiple functional modules such as Bluetooth modules, amplifier ICs, and battery protection boards. The aluminum alloy enclosure helps dissipate heat from the amplifier chip.

6. Wireless Chargers

• Desktop wireless chargers
• Car wireless charging modules
• Embedded wireless charging pads
• Multi-device wireless charging panels

The 22mm height can accommodate thicker wireless charging coil assemblies, improving charging efficiency and charging distance.

What Can Be Customized for Aluminum Enclosure?

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 equipment and smart home 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 52×22mm 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 52×22mm standard profile, customization can be achieved through subsequent CNC machining.

For example:

Interface openings + screen windows + card swiping slots + fingerprint module openings + button holes + heat dissipation slots + mounting holes + grooves + steps + logo

All can be machined according to customer drawings.

Product Selection Guide

If Your Device Needs to Be Slim but Requires More Internal Space

The 22mm height offers about 16% more internal space than the 19mm specification, accommodating small electrolytic capacitors (16-20mm high), micro relays, slightly taller SMD components, or better heat dissipation structures. Suitable for devices that need functional completeness while requiring a slim profile.

If Your PCB Width Is Close to 52mm

52×22mm is an ideal choice — the 52mm width provides ample PCB routing space and side-by-side layout of function modules.

If You Are Designing a Handheld Device

The 22mm thickness makes the device comfortable and lightweight to hold, suitable for barcode scanners, POS machines, handheld terminals, and other devices that need to be held by hand.

If You Need to Integrate Multiple Function Modules

The 52mm width can accommodate side-by-side layout of multiple function modules such as screens, card slots, fingerprint recognition, buttons, and indicator lights, suitable for smart terminals with integrated functions.

If You Need Better Heat Dissipation Performance

The 22mm height allows the installation of small heat sinks or increased air circulation space, suitable for devices with slightly higher heat generation.

If You Need to Install in a Standard Panel

The 52mm width matches standard 86 panel dimensions, suitable for smart switches, thermostats, and other panel-type products.

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 52×22mm aluminum enclosure suitable for?

52×22mm belongs to the wide-body slim aluminum enclosure category. Core applications include barcode scanners, POS machines, access card readers, handheld terminals, Bluetooth speakers, wireless chargers, smart remote controls, fingerprint recognition modules, ultra-thin sensors, etc. The 22mm height maintains a slim profile while providing more internal space than 19mm, accommodating more components and slightly taller parts.

2. Is 52×22mm the length of the enclosure?

No. 52×22mm refers to the cross-section size of the enclosure (width × height). The product length can be cut according to actual equipment and PCB length.

3. What is the difference between 52×22mm and 52×19mm?

52×22mm is 3mm taller than 52×19mm, with about 16% more internal space. The 22mm specification can accommodate taller components such as small electrolytic capacitors (16-20mm high) and micro relays, and also offers better heat dissipation conditions, suitable for devices with more complex functions.

4. Can the length of the 52×22mm 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.

5. Can the 22mm height accommodate electrolytic capacitors?

Yes. Common small electrolytic capacitors are usually 16-20mm in height, and the 22mm internal height can fully accommodate them. Specific confirmation is needed according to your component dimensions.

6. Is it suitable for barcode scanners?

Very suitable. The 52mm width can accommodate multiple modules such as the decoding board, scanning head, buttons, and indicator lights. The 22mm thickness makes the device comfortable and lightweight to hold, suitable for long-term handheld operation.

7. Can a screen window be made on the aluminum enclosure?

Yes. Boyuan Hardware can CNC machine screen display windows, indicator light holes, and other structures on the aluminum enclosure according to customer drawings.

8. Can card swiping slots and fingerprint module openings be machined?

Yes. For products requiring card swiping functions such as POS machines and access card readers, magnetic card/IC card swiping slots can be machined according to customer drawings; precise mounting openings can also be machined according to fingerprint module dimensions provided by the customer.

Why Choose Boyuan Hardware?

Boyuan Hardware has focused on the aluminum enclosure and aluminum chassis industry for over 20 years, with approximately 10,000 square meters of production factory space, providing custom aluminum enclosure machining.

From the standard 52×22mm aluminum profile to the CNC-machined finished electronic enclosure, we can machine according to customer product requirements.

If you are looking for a 52×22mm Handheld Terminal Aluminum Enclosure for Smart Devices, you are welcome to send your PCB dimensions, product drawings, or 3D models.

We can confirm the specification, machining method, and customization plan according to your product structure.