The Notch Portawrap is a lightweight and compact rope friction device designed for lowering heavy loads in a controlled manner. Designed by arborists Scott Prophett and Norm Hall in the early 90s, the Portawrap has proven to be a highly dependable and effective tool in safely and efficiently lower loads during rigging operations.
In the past, a ground worker’s main option for rope-controlling heavy wood was to wrap the line’s running end around a nearby tree, often damaging the “wrap tree” from surface friction. But now, in the time it once took to coil up a lowering line and walk it around the tree, the modern arborist can have a Portawrap locked and loaded for multiple lowering tasks. Quickly wrapped and unwrapped between loads, the Portawrap provides the user with a an easy to use solution for lowering anything from limbs to blocks. And unlike the ever-changing tree trunk surface, the Portawrap presents predictable and unchanging friction to ropes, allowing the groundsman to concentrate strictly on the dynamics of the activity above.
The Notch Portawrap has significant corrosion resistance and tree protection. The rust-proof stainless-steel Portawrap will stand up to the worst heat, salt and humidity that a coastal company can throw at it. The main tube on the Notch Portawrap is seamless, maximizing its strength-to-weight ratio. Seamless tubing is ideal for more stressful applications requiring higher quality, increased mechanical properties, uniformity and strength. Notch has all edges on the main tube and solid posts chamfered to eliminate any sharp edges.
Also included is a Scott Prophett special feature—a tree-protecting cap that prevents the gouging and disfiguration of the tree that can occur with other similar devices that are available in today’s market.
Large Stainless Steel Notch Portawrap is for lines up to 3/4″, weighs 7 1/4 lbs. Strength and rope specs are labeled directly on the Notch Portawrap
|TENSILE STRENGTH||20,000 lbs ( 88.9 kN )|
|WORKING LOAD LIMIT||2000 lbs ( 8.8 kN )|