How to Judge the Quality of Supermarket Roll Cages
Judging the quality of supermarket roll cages requires a comprehensive evaluation from five core dimensions: materials, welding process, surface treatment, load-bearing capacity, and structural design, ensuring their safety and durability during high-frequency use.
1. Materials and Thickness
Steel Material: High-quality products use Q235 or Q195 high-strength wire rod, which has high strength, good ductility, and strong impact resistance.
Channel Steel and Wire Diameter: The thickness of the bottom channel steel should be ≥2.0mm, and the wire diameter of the mesh is recommended to be ≥4.0mm, directly affecting the load-bearing stability.
Mesh Size: Commonly 50×50mm or 50×100mm. Mesh that is too large will cause small items to slip off, while mesh that is too dense will increase weight and cost.
2. Welding Process
Weld Strength: All mesh intersections must be fully welded, with no incomplete welds, missing welds, or detached welds. Special attention should be paid to the connection between the door frame and the uprights.
Welding Method: Carbon dioxide gas shielded welding is recommended, resulting in uniform welds and high strength, superior to ordinary arc welding.
3. Surface Treatment and Rust Prevention Performance
Zinc Layer Thickness: Hot-dip galvanizing is superior; the zinc layer thickness should be ≥80um, providing corrosion protection for over 8 years.
Cold Galvanizing vs. Hot-Dip Galvanizing: Cold galvanizing produces a bright appearance but has weak rust prevention, suitable for dry indoor environments; hot-dip galvanizing is necessary for humid or outdoor environments.
No Burrs, No Scratches: The surface should be smooth and flat to prevent scratches to goods or personnel during handling.
4. Load-Bearing Capacity and Structural Stability
Static Load-Bearing Capacity: Legitimate products should provide a third-party testing report; the static load-bearing capacity should be no less than 1000kg, with heavy-duty models reaching over 1500kg.
Stacking Stability: Supports stacking of 4 layers or more; the bottom structure must be reinforced with U-shaped steel or triangular reinforcing plates to prevent deformation.
Folding Hinge Durability: The hinge should rotate smoothly without loosening, be durable, and withstand fatigue tests of ≥10,000 opening and closing cycles.
5. Detailed Design and Accessory Quality
Door Lock Mechanism: The bolt-type door lock should be flexible and reliable, with no wobbling after closing, preventing accidental opening during transportation.
Optional Accessories: Whether it supports the addition of PVC baffles, iron plate edging, casters, etc., to improve anti-roll and movement performance.
Qingdao Feiyue Storage Equipment Co., ltd. is a manufacturer of storage and logistics facilities that integrates research and development, production, and sales. For more information about supermarket roll cages, please contact us.
Address：Jiaozhou Industrial Zone,Huangdao District,Qingdao,China
Email：admin@fyracks.com
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