Notch Portawrap Large Stainless Steel Friction Lowering Device
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The Notch Portawrap is a compact, lightweight rope friction device designed to provide controlled lowering of heavy loads during rigging operations. Developed by arborists Scott Prophett and Norm Hall in the early 1990s, the Portawrap has become a trusted tool in the arborist community for its reliability, ease of use, and ability to protect both ropes and trees during lowering tasks.
Key Features
- Controlled Lowering: Allows ground workers to manage heavy loads with precision and safety
- Tree-Friendly Design: Eliminates the need to wrap ropes around tree trunks, preventing bark damage
- Consistent Friction: Provides predictable rope friction, unlike variable tree surfaces
- Quick Setup: Easily wrapped and unwrapped between loads for efficient workflow
- Corrosion Resistance: Made from rust-proof stainless steel, ideal for coastal or humid environments
- Seamless Tubing: Enhances strength-to-weight ratio and mechanical integrity
- Chamfered Edges: All contact points are smoothed to prevent rope wear and snagging
- Protective Cap: Prevents gouging and damage to trees during use
Specifications
- Material: Stainless steel
- Rope Compatibility: Up to 3/4 inch (19 mm) diameter lines
- Weight: 7.25 lbs (3.29 kg)
- Maximum Load: Refer to labelled strength specs on the device
- Design: Seamless main tube with solid posts and protective tree cap
The Notch Portawrap is an essential rigging tool for arborists seeking a safe, efficient, and tree-friendly solution for lowering heavy limbs and blocks. Its durable stainless steel construction, predictable friction control, and thoughtful design features make it a standout choice for professional rigging operations.
