20kN High Strength Aluminum Pulley – Lightweight Rope Sheave for Climbing & Rescue
group nameCustom Aluminum Pulleys
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Min Order1 piece
brand nameKinSafety PPE Wholesale Manufacturer
modelJS-A8901
payment methodT/T, L/C, D/P D/A, MoneyGram
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update timeSun, 07 Dec 2025 08:07:07 GMT
Paramtents
Material Aluminium 7075
Item number JS-A8901
Color Any Color(Can be customized)
Packging & Delivery
Min Order1 piece
Briefing
Lightweight 20kN aluminum pulley for climbing, rescue, and rigging, offering high strength, smooth rope movement, and reliable load handling.
Detailed
JS-A8901 20kN Aluminum Pulley Description
The 20kN High Strength Aluminum Pulley is engineered for professional climbing, rescue, and industrial safety systems where smooth rope handling and reliable load-bearing are essential.
Crafted from aerospace-grade 7075 aluminum alloy through precision CNC machining, it delivers exceptional strength-to-weight performance, ensuring both efficiency and durability in demanding vertical operations.
With a breaking strength of 20kN (≈2000kg) and a lightweight anodized frame, this pulley provides smooth, friction-minimized movement for climbing, hauling, rigging, and fall protection setups.
JS-A8901 20kN Aluminum Pulleys Parameters
Any Color (Can be customized) | Aluminum Pulley |
| Item number | JS-A8901 |
| Material | Aluminium 7075 |
| Packing size | Canton: 50pcs/ctn 36.5*26*12cm |
| Packing by | Mail box |
Available color | Any Color (Can be customized) |
Function | For construction sites, power facilities, miners, oil exploration, rock climbing and outdoor sports |
Professional JS-A8901 20kN Aluminum Pulleys Purchase Guide
1. Material & Durability
Constructed from aerospace-grade 7075 or 6061-T6 aluminum alloy, this pulley offers the optimal balance between lightweight design and high tensile strength. Each piece is CNC-machined for dimensional precision, ensuring smooth rotation and consistent rope alignment.
The surface undergoes hard anodizing or oxidation treatment, significantly improving wear resistance and protecting against deformation under repetitive stress. This ensures stable performance and a long service life even under intense load and friction cycles.
✅ OEM Advantage: Lighter than steel alternatives while maintaining equivalent strength; ideal for manufacturers seeking to reduce overall system weight without compromising safety.
2. Outdoor Environmental Adaptability
Designed for extreme outdoor and industrial environments, this pulley maintains mechanical integrity in high-humidity, high-salt, and temperature-variable conditions. Its anodized surface resists corrosion, oxidation, and UV degradation, preventing color fading or pitting over time.
Whether deployed in mountain rescue operations, tower maintenance, or offshore rigging, the pulley retains its structural stability and low-friction performance under harsh environments.
✅ Performance Proven in: Rope access, aerial work platforms, climbing expeditions, and rescue missions in challenging weather conditions.
3. Load Performance & Safety Factor
Each pulley is load-tested to a minimum breaking strength of 20kN (≈2,000kg), ensuring dependable performance under dynamic tension. The sealed ball bearing or bushing system guarantees smooth rope passage, reducing friction loss and energy expenditure during lifting or descent operations.
Clear load rating and direction indicators are laser-engraved on the side plate for user safety and traceability. Each batch is tested according to EN12278 and ANSI standards, providing OEM partners with globally recognized compliance assurance.
✅ Safety Margin: High safety factor suitable for personal protective equipment (PPE), climbing systems, and industrial rescue kits.
4. Structural Craftsmanship & Detail Finishing
Engineered with precision side plates and rounded edges, the pulley ensures smooth rope transition and reduces abrasion on textile lines. The integrated rivet axle offers consistent strength and alignment, while the polished sheave groove minimizes wear and heat buildup during rapid operations.
The pulley’s design prioritizes compact geometry and efficient load distribution, enhancing strength-to-weight ratio. Surface finishing options (anodized silver, black, red, or custom colors) and engraved OEM logos are available to support brand differentiation.
✅ Why Choose Us:
Over 30 years of metal forging and CNC machining expertise
Strict QC and load testing for every production batch
Proven export performance to European and American PPE markets
Flexible OEM/ODM customization to meet your design and certification needs
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You need a product
6YRS Ninghai Jinsong Stamping Co.,Ltd
- Nearest port for product export
- Ningbo
- Delivery clauses under the trade mode
- FOB, CFR, CIF, EXW
- Acceptable payment methods
- T/T, L/C, D/P D/A, MoneyGram