Precision Engineering for Global OEMs

Custom Locker Cabinet services

From rapid prototyping to high-volume production, Supro MFG delivers one-stop precision metal fabrication with ISO-certified quality. Reduce your lead times and production costs with our expert DFM support.

1-3 day Rapid Prototyping & Agile Supply Chain Delivery.
On-time delivery of high quality product commitments.
Extensive Material Selection & Industrial-Grade Finishing.
Direct-from-Factory Pricing & Transparent Costing.
ISO 9001-2015 / IATF 16949:2016 certified system.
Integrated Assembly: Delivering finished, ready-to-use products, not just components.

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Rapid Prototypes, DFM Optimization, On-Time Delivery, Real Manufacturer Quote.

Rapid stamping die Turnaround

Committed to exceeding expectations for quality and rapid turnaround, and meeting high-quality sheet metal parts.

Consistency & high quality

Whether it is rapid prototyping & large-volume manufacturing, we will implement it according to customer needs and standards.

Low Cost Effective

Integrate product design, bending, stamping, cutting, surface treatment, etc. to provide a series of manufacturing solutions.

Precision Metal Fabrication Services in China | Custom OEM Solutions & Rapid Prototyping

Your Strategic Partner for Locker Cabinet Fabrication

At Supro MFG (Supro Manufacturing Co., Ltd.), we don’t just manufacture parts; we engineer reliability. As a leading China metal fabrication factory, we bridge the gap between complex design and cost-effective production. By leveraging our ISO 9001:2015 & IATF 16949 certified facilities and a seasoned engineering team, we provide 3,000+ global clients with unparalleled custom metal fabrication services—direct from the source with transparent, manufacturer-level pricing.

We specialize in the high-quality manufacturing and assembly of custom metal parts, with processing capabilities encompassing: sheet metal fabrication, metal stamping, CNC machining, laser cutting, metal welding, metal spinning, deep drawing, aluminum extrusion, die casting, as well as customized finished product assembly and surface treatment services.

From concept prototypes to mass production,

Supro MFG is your most reliable partner and you will benefit from our manufacturing services.

Securing Your Designs with Enterprise-Grade Confidentiality at Every Stage of Manufacturing

Your Innovation, Protected:
Uncompromising IP Security & NDA Compliance

At Supro MFG, we understand that your designs are your most valuable assets. As a strategic sheet metal stamping partner, our commitment to your intellectual property is absolute. We operate under a strict Zero-Leak Policy, ensuring that every blueprint, CAD file, and prototype remains strictly confidential within our secure engineering ecosystem.

We proactively offer comprehensive Non-Disclosure Agreements (NDAs) that align with international legal standards, providing you with a transparent and enforceable framework for cooperation. Beyond legal paperwork, our internal protocols include segmented data access, secure server encryption, and rigorous staff training on IP sensitivity. Whether you are a startup scaling a disruptive product or an OEM managing sensitive aerospace components, Supro MFG acts as a secure extension of your own facility. Partner with a metal stamping manufacturer that values your competitive advantage as much as you do.

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What Is a Locker Cabinet

A locker cabinet is a storage unit divided into multiple independent, lockable compartments, typically used for the secure storage of personal belongings, equipment, or documents. They are commonly found in schools, gyms, and offices, providing a safe and organized storage space for coats, backpacks, and valuables.

High-performance locker cabinets are manufactured using precision sheet metal fabrication, which demands extremely high structural integrity. We select high-quality cold-rolled steel or corrosion-resistant stainless steel, processed using precision CNC press brakes to ensure seamless door alignment and provide the frame with tamper-resistant rigidity. Advanced spot welding techniques and reinforced concealed hinges effectively prevent structural deformation, while electrostatic powder coating resists severe wear and environmental corrosion. Ventilation louver designs and multi-point locking mechanisms are key elements in ensuring facility security.

At Supro MFG, leveraging our deep expertise in sheet metal fabrication, we provide customized locker cabinet solutions—including scalable production runs, tailored configurations, and reliable global shipping services—to meet the specific specifications of your facility.

Common Issues with Locker Cabinets

When purchasing heavy-duty locker cabinets for industrial facilities, schools, or fitness centers, durability and security are non-negotiable. High-traffic environments quickly expose defects in sheet metal fabrication, leading to maintenance challenges and security vulnerabilities. Based on actual facility management data, here are the most common defects found in locker cabinets, their root causes, and how we eliminate them through rigorous quality control processes.

Locker Cabinets Are Prone to Prying and Vandalism

The flat, unreinforced door panels and exposed locking mechanisms of locker cabinets make them easy for thieves to pry open using only basic hand tools.

Supro reinforces every locker door with full-length welded I-channels (reinforcing ribs). We design precision-toleranced flush door frames and integrate multi-point locking mechanisms to eliminate points of entry.

Premature Rusting in High-Humidity Environments (e.g., Gyms, Swimming Pools)

Locker cabinets made from standard bare cold-rolled steel without proper chemical pretreatment in high-humidity environments lead to rapid oxidation and bubbling of the powder coating.

For humid environments, Supro upgrades the raw materials to galvanized annealed steel or galvanized steel. All components undergo a rigorous multi-stage iron phosphate cleaning and sealing process before painting.

Excessive Noise (Metal Clanging)

The clanging of metal against metal when doors are slammed shut is a major complaint in schools and staff break rooms, caused by a lack of soundproofing measures.

Supro installs industrial-grade rubber sound-dampening pads along the door lock frame. For advanced soundproofing, double-layered doors with built-in soundproof cores are available.

Powder Coating Peeling at High-Frequency Contact Points

The root cause of this issue in locker cabinets is insufficient curing temperature or uneven coating thickness around handles and keyholes, leading to rapid wear.

Supro uses a durable epoxy-polyester powder coating blend. An automated electrostatic spray line ensures uniform coating thickness between 60 and 80 microns, and the coating is cured in a strictly temperature-calibrated oven to achieve optimal impact resistance.

No design files? Let Supro MFG do it for you.

We often come across clients who have no professional design drawings and documentation, only a creative idea, which leads to the project being at a standstill.

If you are in this situation, then contact our team of experts.

Supro MFG, as an industry-leading custom metal fabricator, has an ever-experienced team of engineers who utilize their extensive fabrication experience and technical expertise to build your idea into a real product and create design files such as STEP/STP/SLDPRT/DXF/PDF/PRT/DWG/AI.

That’s what makes SUPRO MFG so great, and 2,000 corporate, entrepreneurial, artist, and other purchasers from around the world enjoy working with us and benefiting from our one-stop manufacturing services.

A part is only as good as its finish.

High-Performance Surface Finishing: Aesthetics Meets Durability

At Supro MFG, we understand that professional custom metal fabrication requires more than just structural integrity—it demands surface treatments that withstand harsh environments and strict aesthetic standards.

Our integrated finishing shop provides a seamless transition from the production line to the final coating, ensuring tight control over lead times and quality.