The Beal Transf'air Twin B is a tandem pulley that's ideal for zip lines and high level traverses. This pulley features two stainless steel wheel that run in parallel. They are also mounted on ball bearings. The stainless steel wheels give good stability and are ideal for use on rope or cables. The ball bearings give greater and more consistent efficiency, despite whether they are heavily or lightly loaded. The eyelet is large enough to take three karabiners, while the entire unit has its own individual serial number of ease of PPE inspections. General Features -------------------- Rated for EN 12278 Stainless Steel Sheaves - 2 of in tandem - Increased stability Sheaves are mounted on ball bearings - for Greater Efficient - More consistent levels of speed regardless of loaded weight Will work on Rope or Cable - up to 12mm cable - up to 13mm rope Individual serial number --------------------
The Petzl Tandem Speed is the fastest pulley out there. At top speed this will cover up to 20 meters per second. The sides of the pulley are fixed, they also feature large mounting eyelets. The mounting eyelets will accept up to three carabiners easily. The sheaths are made of stainless steel and they are mounted on sealed ball bearing for the best levels of efficiency. The Tandem speed really is the best zip line pulley out there, however it still does have good ratings for commercial work. It has a working load of 10kN and a breaking strength of 24kNGeneral Features -------------------- Rated for EN 12278 Stainless Steel Sheaves - 2 of in tandem - Increased stability Sheaves are mounted on sealed ball bearings - for the best Efficieny - More consistent levels of speed regardless of loaded weight Sheave Diamter - 21mm Will work on Rope and cable - Up to 12mm cable - up to 13mm rope Large carabiner attachment point - Will accept up to 3 carabiners Working Load - 10kN Breaking Strength - 24kN --------------------
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Established in 1977