Custom Heavy-Duty Anti-Rust Spiral Door Closer SWOSC-V Oil-Immersion Commercial/Residential Smooth Operation Coil Spring Compression Load Springs

Technical specifications

Customization guide

Adjustable parameters include spring diameter (25–50mm), coil length (100–300mm), and load capacity (500–2000N) to meet specific door weights or environmental demands.

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With its anti-rust spiral design and oil-immersion lubrication, the SWOSC-V ensures decades of smooth operation even in corrosive or high-humidity settings. Perfect for hospitals, warehouses, or coastal buildings where durability is critical.

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Supplier's note

1. Technical Breakthroughs:

   • Enhanced Corrosion Resistance: The Pro Model’s 500hr salt spray rating exceeds industry standards by 60%, ideal for marine environments.
   • High Load Capacity: The Pro’s 1560N force accommodates heavy industrial doors, 20% stronger than competitors.
   • Oil-Immersion Lubrication: Reduces friction by 40% compared to dry springs, ensuring decades of maintenance-free use.

2. Version Selection Guide:

   • Base Model: Suitable for standard residential or light commercial doors (e.g., office entrances).
   • Advanced Model: Recommended for medium-duty applications like hospital doors or retail spaces needing 15% higher load capacity.
   • Pro Model: Best for industrial facilities or high-traffic areas (e.g., warehouses, airports) where extreme durability and force are critical. With its triple-certified corrosion resistance, it safeguards against rust in corrosive chemical zones. Pair its premium stainless steel with oil-immersion tech to eliminate maintenance downtime.