Xinda WindFire Pulley

In high-altitude operations, rescue lifting, material transportation, and outdoor technical activities, every move and every lift is tied to safety. How can we achieve safer, more efficient, and easier rope-handling under load?
The Xinda Fire Wheel Auto-Lock Pulley is the answer.

1. Xinda’s Patented Structure

Smooth Bidirectional Movement + Automatic Overspeed Locking**

The Fire Wheel is built with Xinda’s self-developed patented mechanism, solving the traditional pulley’s biggest flaw—it slides freely, but cannot stop or lock in emergencies.
The Fire Wheel introduces a true intelligent auto-lock safety system.

● Bidirectional Smooth Movement (Normal Working State)

When the rope speed is normal (less than 0.8 m/s), the pulley moves smoothly in both directions, significantly improving lifting efficiency.

● When Rope Speed Exceeds 0.8 m/s

Overspeed Automatically Triggers Emergency Stop**

If rope speed suddenly accelerates (＞0.8 m/s), the internal mechanical locking device engages instantly and clamps the rope, preventing free fall or uncontrolled descent.

This feature is something ordinary pulleys cannot achieve, and it is the Fire Wheel’s most important safety advantage.

2. Professional Specifications Backed by Real Data

SpecificationDouble PulleySingle Pulley
Breaking Strength36 kN28 kN
Applicable Rope Diameter10.5–12 mm10.5–12 mm
Weight913 g630 g
MaterialStainless SteelStainless Steel
StandardXF494-2023XF494-2023

Rope Diameter & Performance (Recommended)

  • 10.5 mm – Optimal performance (working speed ＜0.8 m/s)
  • 11 mm – Recommended (working speed ＜0.4 m/s)
  • 12 mm – For single-direction movement only (working speed ＜0.15 m/s)

3. Widely Applicable Across Multiple Industries

✔ Outdoor rope crossing
✔ Aerial work access
✔ Cargo hoisting and material transport
✔ Rescue systems
✔ Climbing & abseiling assistance
✔ Technical rope training
✔ Pulley systems (2:1 / 3:1 / 4:1 mechanical advantage)

The Fire Wheel is suitable for professional rescue teams, high-altitude operation companies, training centers, adventure parks, climbing instructors, and more.

4. Full Stainless-Steel Construction

Durable, Corrosion-Resistant, Long-Lasting**

Made entirely from high-strength stainless steel:

  • Highly wear-resistant
  • Anti-corrosion
  • Long mechanical lifespan
  • Maintains stable performance even in sand, mud, or harsh environments

Suitable for coastal regions, rainforests, mountains, construction sites, and high-abuse industrial settings.

5. Important Safety Notes

  1. The auto-lock function is an auxiliary safety feature and must NOT be used for human suspension or life-supporting load.
    Dirt, mechanical wear, or aging may affect locking performance.
  2. Do NOT use with highly stretchable ropes such as dynamic ropes.
    Excessive rope elasticity reduces locking performance.
    Single pulleys must not be used with high-stretch ropes or ropes that have not released elongation.

6. Why Choose the Xinda Fire Wheel?

✔ Because It’s Safer – Automatic Overspeed Locking

Ordinary pulleys cannot stop a fall. The Fire Wheel can.

✔ Because It’s More Efficient – Supports Multiple Mechanical Advantage Systems

2:1 / 3:1 / 4:1 systems make heavy lifting easy and controlled.

✔ Because It’s More Durable – Full Stainless-Steel Body

Far more robust and long-lasting than aluminum or plastic pulleys.

✔ Because It’s Xinda – 20 Years of Rope Equipment Manufacturing Experience

Trusted globally in more than 50 countries by rescue teams and technical rope professionals.

User Manual