Direct supply-chain solutions with certified loading ratings and surface corrosion treatments
Evaluating mechanical properties, load redistribution, and logistical scalability of interlocking rivet/butterfly designs
In modern industrial storage, the transition from traditional nuts-and-bolts systems to boltless, modular configurations represents a critical advance in warehouse management. Boltless systems utilize structural interlocking joints—typically butterfly hole connectors or double-rivet designs—that use gravity and the shelf load itself to lock the beams securely into structural uprights. As load increases, the connection tightens mechanically, minimizing vertical deflection and eliminating structural failure from loosened fasteners.
By leveraging high-yield cold-rolled steel (SPCC/Q235B), these systems display excellent mechanical strength-to-weight ratios. The cold-forming process hardens the profiles, producing stiff upright posts and step-beams that resist torsional twisting under dynamic loading.
For B2B procurement managers and supply chain directors, choosing a boltless architecture lowers installation costs by up to 65% and enables fast reconfiguration when SKU dimensions change.
Guangzhou Fangjiu Shelf Co., Ltd. - A Trusted Partner for Industrial-Grade Storage Systems
Established in 2015, Guangzhou Fangjiu Shelf Co., Ltd. is a premier manufacturer and global provider of heavy-duty warehouse racking and industrial storage systems. Operating a modern manufacturing facility spanning 32,000 square meters, we serve as a trusted backbone for global supply chain optimization. With 16 years of deep industry expertise and 8 years of dedicated international export experience, Fangjiu Shelf delivers high-caliber storage solutions engineered for durability, safety, and operational efficiency.
Driven by strong trade backgrounds and robust commercial capabilities, we generate over $18 million in annual export turnover, exporting high-performance storage products to major markets across North America, Western Europe, and Southeast Asia. Quality assurance is embedded in every stage of our operations. Supported by a rigorous Quality Management System (ISO 9001, CE certified) and a dedicated team of 35 quality control personnel, every batch undergoes comprehensive raw material testing, robotic weld inspection, load-bearing stress tests, and powder-coating thickness audits.
Our extensive industry integration connects us with over 850 reliable supply chain partners, allowing us to supply diverse global clients—ranging from multinational logistics centers and industrial distributors to commercial retail brands. Backed by advanced R&D capabilities, including 18 specialized mechanical and design engineers, we offer full OEM/ODM custom options—including custom dimensioning, load capacity engineering, color matching, and special seismic structural design. Last year, Fangjiu Shelf successfully launched 45 new optimized storage products, continuing to set standards for warehouse safety and efficiency worldwide.
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Annual Export Value
QC Inspection Team
New Innovations Yearly
Step-by-step visual workflow showing how raw steel is transformed into high-precision heavy-duty racks
Key standards for heavy industry, logistics, and retail supply distribution networks
Industrial procurement demands high mechanical compliance. We ensure that our raw carbon steel coils match ASTM, EN, and GB mill specifications. Our systems carry structural certifications for ISO 9001 and CE compliance, minimizing liability and operational risk.
Every shelving tier requires a safe load limit. Our products range from light 100kg garage shelving to heavy-duty pallet racks capable of supporting 5000kg per bay. We conduct rigorous stress-strain analysis to calculate safety margins and avoid structural deflection.
Storage systems in cold storage or coastal areas require high rust resistance. We apply a multi-stage pretreatment wash followed by an electrostatic epoxy-polyester powder coating (60-80 microns thickness) to protect against mechanical wear and corrosion.
Adapting boltless structural engineering across diverse logistics and commercial environments
High-turnover 3PL hubs need flexible racking setups. Boltless multi-tier racks and structural mezzanines help operations scale storage density by up to 150% without modifying the building footprint. Our butterfly-hole shelves allow rapid adjustment in 50mm vertical increments to fit seasonal inventory changes.
Standard painted racks can degrade in humid cold storage. We use specialized, anti-corrosive epoxy powder coats and hot-dip galvanized finishes. These coatings resist sub-zero temperatures and hold up to frequent sanitation washdowns, preventing rust and bacterial buildup.
Handling bulky components like tires, cylinder heads, and steel stampings requires strong structural designs. Our heavy-duty I-beam platform systems and tire racks distribute heavy loads evenly, preventing the frame fatigue common in lighter, generic racking systems.
A comparison of material thickness, structural designs, and loading metrics
| Racking Type | Material Grade | Standard Thickness Upright / Beam | Connector Type | Standard Load Capacity | Surface Treatment |
|---|---|---|---|---|---|
| Heavy Duty Pallet Rack | Q235B / Q355B Steel | 2.0mm / 1.5mm - 2.5mm | Beam-Type Hook Lock | 1000 - 5000 kg / layer | Electrostatic Epoxy Coating (Anti-Rust) |
| Butterfly Hole Shelf Rack | SPCC Cold-Rolled Steel | 1.5mm / 1.2mm | No-Screw Butterfly Joint | 200 - 500 kg / layer | Scratch-Resistant Thermo-Powder |
| Industrial Cantilever Rack | Q235B Structural Steel | 2.5mm - 3.5mm | High-Strength Bolted Anchor Base | 500 - 1500 kg / arm | Dual-layer UV Protective Powder |
| Foldable Castor Wheel Rack | Q195 Welded Steel Tube | 1.2mm / 1.0mm | Boltless Integrated Hinge | 150 - 300 kg / tier | Galvanized & Chrome-Plated |
Industrial storage is evolving beyond static steel frames. Fangjiu Shelf’s technology roadmap includes integrating IoT-based weight sensors and RFID tags into our heavy-duty beam structures. This allows warehouse software to track load levels in real time and flags load imbalances or structural overloads before accidents occur.
We are also working on reducing our carbon footprint by using high-strength low-alloy (HSLA) steel. This material allows us to decrease structural weight by 15% while maintaining the same load capacities, lowering transit energy requirements and raw material usage.
Meeting national engineering, seismic, and occupational safety codes
Our structures comply with RMI (Rack Manufacturers Institute) guidelines. This includes maintaining proper structural deflection limits (under L/240) and using standard safety factors to meet OSHA workplace safety inspections.
We design our racking systems in accordance with EN 15512 and FEM 10.2.02. These European standards ensure consistent safety factors for warehouse operations and help simplify import customs clearance.
For installations in active seismic areas, we provide custom configurations with larger baseplates, dual floor-anchoring points, and reinforced diagonal bracing. These features help prevent structural failure during seismic events.
Get technical insights from our structural engineering and logistics planning teams
Q235B is a hot-rolled structural carbon steel with high yield strength, ideal for heavy upright frames and pallet beams. SPCC is commercial-grade cold-rolled steel, which has a smoother surface and tighter tolerances, making it suitable for lighter, high-precision boltless components.
Boltless shelves use interlocking tapered connections, such as butterfly-hole joints. As weight is applied, these joints seat deeper, creating a rigid connection that resists swaying. For very tall configurations, we add rear and side diagonal bracing to maintain structural integrity.
We apply an electrostatic epoxy-polyester powder coating (60-80 microns thick) that complies with GB/T 9286 cross-cut testing. This ensures high impact resistance and prevents rust from moisture, light chemicals, and mechanical abrasion.
Yes, our team of 18 R&D engineers provides custom structural design. We can customize shelf dimensions, steel thickness, profile configurations, and color coatings (using RAL codes) to match your warehouse space and loading requirements.
We use automated roll-forming and robotic welding lines to keep fabrication tolerances within 0.1mm. Our QC team of 35 inspectors conducts raw material tests, weld checks, and powder-coating thickness tests for every production run.
Standard production times range from 15 to 25 days depending on order size and customization. We pack all products in protective bubble wrap and heavy-duty steel bands to prevent damage during sea transport.
Explore our range of heavy-duty cantilever racks, adjustable displays, and multi-tier systems
Fangjiu Shelf
