Product Introduction

The open-frame sheet metal housing is a customized metal structure designed for compact electronic assemblies that need a strong base frame, clear connector access, ventilation, and internal mounting support. It is suitable for PCB assemblies, industrial control modules, communication hardware, prototype devices, smart terminals, and small electronic equipment that require a formed metal chassis before final cover installation or system integration.

This product is different from a fully enclosed mini PC case. Its main role is to provide an accurate and durable structural base for internal components. The open-top design allows easier installation, inspection, wiring, heat dissipation, and further assembly with covers, panels, brackets, or other hardware parts.

Shenzhen Fuwanglong Hardware can customize the housing according to customer drawings, samples, 3D files, board layout, connector position, ventilation needs, and final assembly requirements. The product can be adjusted in material, thickness, surface finish, hole layout, side opening design, and internal mounting structure.

Key Specifications & Parameters

Product Type: Open-frame sheet metal housing / electronic assembly chassis base

Material Options: Cold-rolled steel, SECC steel, galvanized steel, stainless steel, aluminum alloy, or customized sheet metal materials

Processing Methods: Sheet metal cutting, stamping, bending, punching, CNC processing, drilling, tapping, deburring, welding, surface treatment, and assembly support

Surface Finish Options: Powder coating, painting, anodizing, sandblasting, brushing, passivation, silk screen printing, laser marking, or customized finishing

Structure Features: Open-top frame, rounded corners, side ventilation slots, connector cutouts, PCB mounting holes, bracket openings, cable access holes, and customized installation features

Customization Items: Housing size, material thickness, ventilation pattern, side openings, port layout, mounting points, edge treatment, color, logo position, and packaging method

Application Direction: PCB assembly base, compact electronics chassis, industrial control modules, communication modules, smart terminal structures, development hardware, and OEM electronic device projects

OEM/ODM Support: Available for sample development, structural adjustment, low-volume trial production, and batch manufacturing

Main Functions

PCB mounting support
The housing provides a stable metal base for PCB installation, screw fixing, connector alignment, and internal component positioning. It helps keep the board and related modules organized during assembly and later system integration.

Open-frame assembly access
The open-top structure makes it easier to install circuit boards, wiring, heat sinks, connectors, and small hardware parts. This is useful for engineering samples, prototype testing, and products that require further cover or panel assembly.

Ventilation and heat release
Side ventilation slots help improve airflow around internal electronic components. For compact electronic modules, a ventilated metal housing frame can reduce heat buildup and support more stable working conditions.

Connector and cable access
Custom openings can be made for ports, buttons, cables, antennas, indicators, and other interface areas. Accurate cutouts allow the housing to match the customer’s PCB layout and external connection requirements.

Structural protection before final assembly
The formed sheet metal frame helps protect the electronic assembly during handling, testing, transportation, and installation. It also provides a stronger mechanical structure than plastic trays or temporary mounting plates.

Flexible OEM design adaptation
The chassis base can be modified according to different product series, board sizes, installation methods, and outer cover designs. This allows customers to use one structural concept for several related electronic hardware projects.

Specific Application Scenarios

PCB assembly base
The housing can be used as a compact base frame for PCB assemblies that need stable mounting, side openings, ventilation, and access for connectors or cables. It is suitable for electronic products that are later combined with top covers or other enclosure parts.

Industrial control modules
For control units used in automation equipment, production line devices, and machine control systems, this open-frame metal housing provides practical internal support while allowing easier wiring, maintenance, and inspection.

Communication module structures
Communication hardware often needs accurate port openings, antenna holes, side vents, and compact metal support. This housing can be customized for small communication modules, signal units, network accessories, and gateway-related structures.

Electronic prototype development
For early-stage electronic device development, an open-frame sheet metal chassis can help engineers test board layout, interface position, heat dissipation, and assembly method before moving to a fully enclosed product design.

Smart terminal internal chassis
Smart terminals, display controllers, access control devices, and small embedded modules may require an internal metal structure to support the board and connectors. This housing can work as the internal chassis inside the final product system.

Compact OEM device assemblies
The product is suitable for OEM projects that need a customized sheet metal chassis base for small electronic devices, control boxes, testing modules, and equipment subassemblies. It helps simplify assembly and improve structure consistency.

FAQ

Q1: Can this open-frame sheet metal housing be customized for our PCB layout?
A1: Yes. The housing can be customized according to PCB size, mounting holes, connector positions, cable routing, heat source location, and final assembly requirements.

Q2: What is the difference between this product and a fully enclosed mini PC case?
A2: This product is mainly an open-frame chassis base for PCB mounting and internal assembly. A fully enclosed mini PC case focuses more on complete exterior protection and finished device appearance.

Q3: Can you add custom side holes, vents, and connector openings?
A3: Yes. Ventilation slots, round holes, rectangular cutouts, cable openings, antenna holes, screw holes, and other interface areas can be processed based on drawings or 3D files.

Q4: What materials can be used for this housing?
A4: Common materials include cold-rolled steel, SECC steel, galvanized steel, stainless steel, aluminum alloy, and other sheet metal materials selected according to strength, weight, surface finish, and cost requirements.

Q5: What surface treatments are available?
A5: Surface treatment options include powder coating, painting, anodizing, sandblasting, brushing, passivation, silk screen printing, laser marking, or other customized finishes based on project requirements.

Q6: What information is needed for quotation?
A6: Drawings, 3D files, material and thickness requirements, housing size, port layout, ventilation design, mounting hole position, surface finish, quantity, and application details are helpful for accurate evaluation.