Snatch blocks for tree removal full#

Snatch blocks for tree removal full#

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Only shipped to the continental United States The X-BULL Powerplant handles a load of up to 17,000 pounds and will improve the functionality of your winch.It prevents cables from pulling from one side of the drum and doubles your pulling power.The use of this snatch block winch can also reduce winch motor heating, gear stress and battery amplifier draw-out.This snatch block has a stainless steel pulley wheel that fits the 3/8 inch wire rope as well as a durable brackets finish with a black powder coating.Īccepts cable/rope 1/2' to 3/4'.Perfect for navigating around trees and other obstacles to get your ATV, UTV, or 4x4 back on the trail, easily drag truck tractor ATV or UTV out of snow or anywhere that needs recovery. Suitable for trucks, ATV, 4x4, trailers and any 4WD vehicles.Greasable fitting for continued smooth operation.Change pulling direction without damaging rope.Swivels open to accept line with no disassembly.The ratio reversed as I lowered the tension. The whole concept of tension ratio came about because I used a whole bunch of points from the graph of tension vs time in my recording as I raised the tension and they all worked out to a constant ratio.

Great finding a kindred nerd! Good stuff! Catches the odd error and gives confidence. When I have doubt about a data set I try it twice. Then that TR can be used to predict all your various configurations. Best to do the direct tension ratio first setup you used. your shackle(edit - ring!) on fibers, your shackle(edit - ring!) on cover, on slippery dyneema direct. It would be worth trying different soft shackles i.e. Something happened to get 'too good' data. I went through the backwards math to figure out Donzeli's block tension ratios.ġ4:16 beast x ring spinning on soft shackle cover (not directly on fibers)Ĭalc TR tension ratio = 1.16 seems quite good. Meas TR was 1.33 this run did a bit worse. W42 big heavy yoke N-261 0.49' wide with edge rounds matching 1/4' diameters, flattish face, 1/2 wrap tension ratio 2.4 mu 0.28ġ2:52 CMI block you can predict the result:Ĭmi block (1+1/1.1.) x 2.04 = 3.9, meas 4.09 (?) settled?ġ3:37 directly on shackle fiber, not on cover, red ring, ring spinning (1+1/TR) x 2.0 = 3.43 W41 0.375 dia half cylinder small blue Metolius biner 1/2 wrap tension ratio 2.07 mu 0.23 W40 0.471 dia big steel biner 1/2 wrap tension ratio 1.86 mu 0.197 Note: 1.6 is about the same as rough tree barkĮdit - bad memory - it's 2.6 not 1.6 apologies for that.ġ1:40 km3 DMM steel carabiner (dia?) 2.14/1.28 = 1.7 Next two look like on polyester or nylon cover of soft shackle:ġ1:00 km3 rigging shackle body U 2.08/1.30 = 1.6 Km3 is parallel lay core might help improve the results.