A professional double pulley that makes rope movement as smooth as silk.

I. Product Overview
The Owl Double Pulley is a high-performance double pulley from Xinda‘s 3rd Generation H-Series (Item No.: HH-9796). It features a dual-sheave, dual-axle design with built-in ball bearings and precision-polished grooved sheaves for exceptionally smooth rope travel. With a 20kN breaking strength and XF 494-2023 certification, it is a reliable choice for mountaineering, caving, rescue, high-altitude work, and more.
II. Technical Specifications
| Parameter | Value |
|---|---|
| Product Name | Owl Double Pulley |
| Brand | Xinda |
| Item No. | HH-9796 |
| Material | Aluminum alloy, steel, etc. |
| Color | Green/Gray |
| Dimensions | 145 × 80 × 96 mm |
| Gate Opening | 26 mm |
| Weight | 432 g |
| Applicable Rope Diameter | 9–13 mm |
| Breaking Strength | 20 kN |
| Standard | XF 494-2023 |
| Packaging | Cardboard box |
| Application Scope | Mountaineering / Caving / Rock Climbing / Expansion Activities / Rescue / High-altitude Work / Outdoor Amusement Park Equipment, etc. |
III. Key Design Features
3.1 Dual-Sheave, Dual-Axle Design – Extra Stability
The Owl Double Pulley uses a dual-sheave, dual-axle configuration with two sheaves arranged side by side:
- Enhanced balance – Both sheaves share the load, providing smoother rope travel
- Reduced rope twisting – Compared to single pulleys, the double design minimizes rope spin and tangling
- More even load distribution – Forces are spread across two sheaves, extending service life
Whether you‘re hauling heavy loads or setting up a traverse system, the added stability of a double pulley is immediately noticeable.
3.2 Sealed Ball Bearings – Smooth and Efficient
The pulley is equipped with sealed ball bearings:
- Lower friction – The bearing design allows the sheave to spin more freely
- Higher mechanical efficiency – Better mechanical advantage, easier hauling
- Longer service life – Bearings are wear-resistant and durable, staying smooth over time
Combined with precision-polished grooved sheaves, the rope glides through the pulley with exceptional smoothness.
3.3 Large Gate Opening – Fast Rope Installation
The Owl Double Pulley features an asymmetric auto-locking gate:
| Feature | Description |
|---|---|
| 26mm gate opening | Accommodates a wide range of carabiners and connectors |
| Auto-locking | Gate locks automatically when closed – reduces accidental opening |
| Smooth and convenient | One-handed operation, fast rope installation |
The auto-locking gate is especially useful in challenging environments — no need to worry about forgetting to lock the gate manually.
3.4 Integrated Carabiner + Dust Covers
The Owl Double Pulley comes with thoughtful design details:
- Carabiner pre-installed – No need to buy and attach a separate carabiner; ready to use out of the box
- Front and rear dust covers – Secure the carabiner to prevent rattling and keep dust out of the bearings
- Covers also stabilize the carabiner – Prevents side-to-side movement during use
These small details are very practical in dusty environments like caves or construction sites, helping extend the life of the equipment.
3.5 Compatible with Multiple Rope Types
| Rope Type | Compatibility |
|---|---|
| Steel cable | ✅ Compatible |
| Synthetic fiber rope | ✅ Compatible |
| Nylon rope | ✅ Compatible (9–13mm) |
The Owl Double Pulley is specially designed to work with both steel cables and fiber ropes — a feature not commonly found in double pulleys. Whether you’re using dynamic climbing ropes or steel cables for industrial applications, it‘s ready to go.
IV. Product Advantages Summary
| Advantage | Description |
|---|---|
| Dual-sheave, dual-axle | Enhanced balance, smoother rope travel |
| Ball bearings | Low friction, high efficiency, long life |
| 20kN breaking strength | High strength, safe and reliable |
| 26mm large gate opening | Fast rope installation, broad compatibility |
| Auto-locking gate | Closes and locks automatically – prevents accidental opening |
| Integrated carabiner + dust covers | No rattling, keeps dust out |
| Steel cable / fiber rope compatible | One pulley, multiple applications |
V. Application Scenarios
| Scenario | Specific Use |
|---|---|
| Mountaineering / Rock Climbing | Rope redirection, mechanical advantage systems |
| Caving | Traverse systems, rope protection |
| Rescue | Haul systems, deviation anchors |
| High-altitude work | Tool hauling, rope management |
| Outdoor amusement parks | Ziplines, via ferrata — pulley components |
| Industrial rope access | Guide pulleys for steel cable systems |
VI. Usage Guidelines
- Check rope diameter — Ensure rope diameter is within 9–13mm before use
- Confirm gate is locked — After installing the rope, make sure the auto-lock gate is fully closed
- Do not overload — Do not exceed the 20kN breaking strength
- Regular inspection — Check sheave rotation, bearing noise, and gate function periodically
- Cleaning and care — Remove dust after use; keep dust covers closed when not in use
- Steel cable use — After using steel cable, inspect sheave grooves for unusual wear
VII. Who Is It For?
- Rope access enthusiasts — Redirection and haul components in SRT/DRT systems
- Rescue professionals — Pulley systems in rope rescue
- Cavers — Traverse systems and rope protection
- Climbers / mountaineers — Rope management in traditional climbing
- High-altitude workers — Tool hauling and rope redirection
- Amusement park maintenance — Inspection and replacement of zipline / via ferrata pulleys
VIII. Conclusion
The Xinda Owl Double Pulley is a professional double pulley that takes “smooth and stable” to the next level.
- Dual-sheave, dual-axle design → Balanced and stable
- Sealed ball bearings → Smooth and efficient
- Large auto-locking gate → Fast and safe
- Steel cable & fiber rope compatible → Versatile
- 20kN breaking strength → Strong and reliable
Whether you‘re rigging a rope traverse or need a mechanical advantage system for heavy hauling, the Owl Double Pulley is a trustworthy addition to your gear kit.
