Manufacturing & Production Process
The enclosure is produced using high-precision single-color injection molding machines, ensuring a consistent and high-quality finish across the entire production run.
Material Selection: Engineering-grade ABS is utilized to balance impact resistance, electrical insulation properties, and manufacturing efficiency.
Process Optimization: We utilize precise control over injection pressure, melt temperature, and cooling parameters to maintain consistent wall thickness and surface finish, ensuring the two-piece assembly mates with high accuracy.
Injection Mold Tooling & DFM Engineering
Our DFM (Design for Manufacturing) approach for this PCB enclosure emphasizes the specific requirements of single-color molding:
Internal Mounting Bosses: The mold is precision-engineered to form multiple internal screw bosses, allowing for the direct, secure attachment of PCBs without the need for additional fastening hardware.
Wall-Mounting Integration: The top cover features integrated, sturdy mounting tabs, which are molded as a single unit to maintain structural integrity and simplify the final installation process for the end-user.
Assembly Precision: The edge-to-edge fit is achieved through strict tolerance control in the mold cavity, resulting in a snug, secure assembly that protects internal components from dust and debris.
Material & Technical Specifications
|
Specification |
Manufacturing Standard |
|
Manufacturing Process |
Single-Color Injection Molding |
|
Material |
Engineering-grade ABS |
|
Design Features |
Internal PCB mounting bosses, integrated wall-mount tabs, two-piece snap/screw assembly |
|
Dimensional Tolerance |
High-precision fits ($\pm0.03\text{mm} - \pm0.05\text{mm}$) |
|
Surface Finish |
Industrial matte (consistent and durable) |
Post-Molding Quality Control Assurance
Each batch undergoes strict quality control to ensure:
Structural Integrity: Consistent wall thickness and boss strength to support internal components.
Precision Alignment: Ensuring that all mounting points and assembly features align perfectly, providing a seamless, professional final assembly.
Diverse Industrial & Precision Applications
Electronics Packaging:
Protective housing for sensor modules, custom PCB projects, and small interface boards.
Automation:
Enclosure for industrial control relays, signal conditioners, and communication modules.
DIY & Prototyping:
Ideal for small-scale electronics requiring a clean, professional, and mountable protective case.
Why Choose Benma
As a professional injection-mold manufacturer and production facility, we specialize in high-precision PC optical components, including diffusers, lenses, covers, and functional lighting modules.
Our factory is equipped with:
High-accuracy CNC tooling centers for mirror-grade mold surfaces
Advanced injection molding machines capable of tight-tolerance PC processing
Comprehensive QC systems, including flatness inspection, UV testing, optical transmittance measurement, and dimension verification
Strict surface-defect control standards, ensuring zero dirt, scratches, shrink marks, or burrs
We focus on delivering stable, repeatable mass-production quality while providing customized tooling design, mold flow analysis, optical structure optimization, and full manufacturing support.
ISO 9001 and SMETA certifications, and several patents

Company Profile
Established in 1997, We operates a 6,000㎡ manufacturing site in Ningbo with convenient regional connections. We provide lighting products, thermoelectric cooling units, and customized mold-making services. With advanced equipment, ISO 9001 and SMETA approvals, and strong engineering capabilities, we ensure high-quality output and global on-time delivery.


Injection Workshop


Hardware Workshop

Assembly Workshop

Laboratory

Injection Molding Workshop Planning
To support efficient manufacturing, the workshop is divided into specific functional areas that enhance workflow organization.


Factory equipment
Our production lines are supported by advanced machinery that ensures consistent accuracy and efficiency.


Packing and Shipping
Customized Packing
Custom packaging is available, including logo printing, brand labeling, and custom carton designs.
For exports, we use robust cartons or steel-frame packing with standard shipping marks to safeguard your goods.
Shipping
For bulk orders:
We work with well-known logistics companies to offer efficient and cost-effective shipping by sea or air.
For samples & small orders:
We use express services from TNT, FedEx, UPS, and DHL.

FAQ
Q1: What is required for product customization?
A1: Provide 2D/3D drawings and detailed specifications, including material, hardness, color, and quantity. Our engineers will review them and quote within 24 hours.
Q2: Can you ensure confidentiality of product information?
A2: Absolutely. We keep all customer data private. We are able to sign NDAs upon request-just send us your company's version.
Q3: Is logo customization available?
A3: Yes, we welcome OEM and ODM branding.
Q4: Can you make products based on samples?
A4: Yes, we can reproduce items based on your samples or drawings and build molds at no cost.
Q5: What payment method do you use?
A5: A 30% deposit is required, with the balance payable by T/T against the B/L copy.
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