ISC Double Redirect Pulley
This small double re-direct pulley from ISC is designed for use on rope from 10mm to 13mm. In many cases this pulley is a cleaner re-direct option as the double sheaves allow each leg of your doubled rope system to run on an independent pulley. ISC lightweight pulleys are made from high strength aluminum and fitted with tamper-proof rivets.
Details
Maximum Rope diameter: 13mm (1/2 inch)
Minimum Breaking Strength: 30kN (6744 lbs)
Wheel material: Aluminum
Finish: Anodized
Weight: 124 grams (4 ounces)
Approved Standards: CE EN 12278
Notes: Individually Serial Numbered
More Information
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Redirects? Nah...
Using double-pulleys for redirects is a little gear-intensive and passe, given that SRT is a far more efficient means for redirecting around the tree. However, I have a set of these ISC pulleys configured in a 5:1 for pulling trees, and it does a tremendous job at a fraction of the price of most pre-assembled packages for the same job. It may not be as strong as some, but for hand-pulling trees, you can't beat this one.
Good pulley, better service
The ISC double redirect pulley is just that, nothing crazy fancy, definitely good quality and durable, I've used it to make some slick 5:1s and 4:1s and it's of great aid to me. What's really impressive is the service. We visited Arbsession on Black Friday and were taken care of better than if we were at some high-class country club. They gave the best, most personal service imaginable, taking lots of time to advise me and my friends on products, letting us test equipment, and explaining the ins and outs of everything. They were even kind enough to give us a short tour of the place. It was a memorably enjoyable experience unlike most shopping. I highly recommend this company for your needs.