Ronstan is a renowned pulley manufacturer that offers quality of all its components. They pulleys offer very little friction and high loads.

We use these pulleys to offer a very low friction Pulley Block system at an affordable price, just like many big circus companies.

This kit gives you a 3:1 force ratio, meaning that with 80 Kg you can lift 240 Kg. It's designed to offer full height capabilities on our 24' Tripods model.

Note that even if the system recommended working load is 882 Lb, it is more than the tripod -- even if the tripod is approved for 1100 Lb Working Load  Why ? - Because if you use a pulley block, that means you will be using a pulley on the top hanging point. If you use a pulley, you double the load on the hanging point. Meaning that if you put 882 Lb on the Rope, you're putting over 1600 Lb of the top hanging point.

This pulley block system is plenty strong for the tripod. All this data is well explained on the Tripod's user manual. 

 Technical specifications

·         Low Friction

·         Lightweight

·         System minimum breaking load: 4410 Lb

·         System recommended working load: 882 Lb (including dynamic factor) with a security factor of minimum 5.

·         Comes with a shackle and Carabiner to easily clip on and off.

Specs (ENG)

  • Rope Diameter: 7/16" - 6600Lbs Min. Breaking Load -- but since you have 3 strands in the pulley the strength in the block is split, so Breaking load is determined by pulleys.

  • Rope Length: 120'

  • Usable Pulley Block travel: Around 30 foot

  • Top Pulley: Ronstan 64500 - 4410 Lb min Breaking Load

  • Bottom Pulley : Ronstan 64110 - 4410 Lb min Breaking Load

  • Carabiner: Rock Exotica  C2 A-B - rock D Auto-Lock (black) -  29 KN / 6380 Lb Min Breaking Load

  • Shackle: Crosby 3/8 Shackle - 13200 Lb Ultimate Load

 Specs (METRIC)

  • Rope Diameter: 11 mm - 2994 Kg Min. Breaking Load -- but since you have 3 strands in the pulley the strength in the block is split, so breaking load is determined by pulleys.

  • Rope Length: 36 m

  • Usable Pulley Block travel: Around 10 m 

  • Top Pulley: Ronstan 64500 - 2000 kg min Breaking Load

  • Bottom Pulley : Ronstan 64100 - 2000 g min Breaking Load

  • Carabiner: Rock Exotica  C2 A-B - Rock D Auto-Lock (black) -  29 KN /  2900 Kg  Min Breaking Load

  • Shackle:  Crosby 3/8 Shackle -  6000 Kg  Ultimate Load

 

Any other questions

     

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Pulley Block Kit, 3 for 1 in Accessories / Spare Parts for Tripods by CircusConcepts

  • Brand: Circus Concepts
  • Product Code: RONSTANKIT3FOR1
  • Availability: 2 - 3 Weeks
  • 459.00 $ CAD


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