Manufactured using hot forging technology combined with high quality materials and components these blocks are rope friendly, durable and extremely robust. All these features combined give maximum security and strength when the block is rigged as part of an impact system.
Apart from just the aesthetic curves the ISC impact pulley/block is designed to help absorb huge forces created by the harsh dynamics of heavy arborist work. The side plates are produced using the best quality hot forged aluminium and the special manufacturing process adopted by ISC allows these pulleys to boast great strength and dynamic load bearing capability and offer a highly impressive strength to weight ratio.
*These pulleys cannot be certified to EN12278:2007, as they have bollards rather than attachment eyes. (EN 12278 standard is only applicable to pulleys with attachment eyes).
Working Line (Green Sheave): 19mm (3/4")
Topping Strop (Red Sheave): 29mm (1 1/8")
Material: Hot Forged Aluminium
Min Breaking Strength (kN): 150
Working Load Limit (kN): 30
Diameter (mm): 19
Cheek Action: Swing
Length (mm): 220
Width (mm): 125
Weight (g): 2260
Proof Tested: Yes
Standard: CE Marked
Serial Number: Yes
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