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ISC Flame 5/8” Rigging Pulley

 ISC Flame Rigging Pulley ISC Flame Rigging Pulley. ISC Flame Rigging Pulley. ISC Flame Rigging Pulley.
ISC Flame Rigging Pulley image ISC Flame 5/8” Rigging Pulley

Buy ISC Flame 5/8” Rigging Pulley

5/8" Flame Pulley
5/8" Pulley w/ 3/4" x 8' Loopie

Stainless steel rigging block from ISC. This tough rigging pulley has a screw-locking top pin and will accept up to a 1" rigging sling and run 5/8" rigging lines. The ISC Flame pulley has flame cut-outs on the side, which help reduce weight (only 3 and a half pounds) while maintaining an impressive 100 kN MBS and 4400 lb Working Load Limit.

100kN (22,480 lb) MBS. Weighs 3 lb 8 oz. ISC Part RP056

  • Oversized upper sheave accepts 1” slings
  • Captive upper sheave with Screw-lock
  • Wide bend radius on lower sheave
  • Durable stainless steel construction
Made in: UK
MBS: 22,480 lb / 100 kN
WLL (5:1) / (10:1): 4,400 lb / 2,000 kg
Max Rope Diameter:5/8”
Max Sling Diameter: 1”
Sideplate Material:Stainless Steel
Sheave Material:Aluminum
Axle Material: Stainless Steel
Weight: 3.5 lb / 1.6 kg

Each ISC Flame 5/8” arborist block is individually serial-numbered.


  • CE Approved

ANSI Z133-2017

The American National Standards Institute (ANSI) has released the ANSI Z133 safety requirements which apply to arboricultural operations. Components of a rigging system must be used within their Working Load Limits.

ISC blocks are ANSI compliant when used within the manufacturer Working Load Limits.

A green log weight chart (found in the Samson Rigging Wheel) will aid in determining loads in tree rigging.

The full ANSI Z133 safety requirements are available on our tree care standards page.

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