High-Strength D-Type Self-Crawling Main Lock & Fast-Mounted Safety Line
Ultra-durable zinc-alloy construction with precision CNC machining ensures corrosion resistance and smooth operation under heavy loads. Patented self-crawling mechanism enables effortless one-handed adjustment, reducing setup time by 40% compared to standard locks. Dual-action spring-loaded gate with anti-vibration design prevents accidental openings during high-altitude work (roofing, scaffolding, tower maintenance). Integrated fast-mounted lock system allows tool-free installation—compatible with 25mm-40mm safety harnesses (EN362 & OSHA certified). High-visibility anodized aluminum carabiner features 360° rotation to eliminate rope twisting at heights up to 500kg static load capacity. Thermoplastic-coated steel core safety line (10mm diameter) includes wear indicators and abrasion-resistant stitching for fall arrest scenarios. Bulk discount available for industrial/commercial buyers—direct factory pricing with ISO9001-certified quality control.