DMM RIGGER pulley

Mesquite · Jan 24, 2022

i have some pelican 5/8 or 16mm rope and i am wondering if anyone where has had experience using bigger line than spec with the DMM Rigger pulley. DMM website says it works with ropes up to 14mm. from past experience i know bigger lines fit on certain pulleys but how big is the question.

does anyone know of a 5/8 pulley with the three attachment points at the top? dmm has the 5/8 pinto rig, but i like the options the multiple attachment points provides

thank you

rigger pulley

Rigger

Rigging essentials. An evolution of the Triple Attachment Pulley first brought to the market 10 years ago by DMM. The hot forged swing-cheek pulley with an in-built three hole rigging plate allows creative configurations and enables direct connection to textile components to save on weight and...

dmmwales.com

pinto rig

Pinto Rig

Pulley I Need To Own. A chunky version of our Pinto Pulley for more efficient rigging and hauling. With beautifully smooth parallel connection holes and a load bearing becket, Pinto pulleys can be clipped, hitched, spliced or threaded to give numerous work and rescue configurations. Loved the...

dmmwales.com

Dan Cobb · Jan 24, 2022

Knowing the application and anticipated maximum load would be helpful.

In general, I'd want to ensure the rope didn't flatten under load and experience accelerated wear by protruding from the sheave groove. And you'll have to decide if the <2:1 bend ratio is a concern for you with a 28mm diameter sheave, which may be highly dependent on the application.

Njdelaney · Jan 24, 2022

I think I remember seeing one of those pulleys in use(although as a hitch tender) by @rico so maybe he has something to add or an answer for you.

Mesquite · Jan 24, 2022

thanks for your time but i have decided to get the pinto rig. i dont want to chance messing with the rope

Seth McPherson · Feb 17, 2022

curious why you want to us 5/8” rope. is that just what you already have?

Jonny · Feb 17, 2022

The Pinto Rig is really well made, there’s not much out there to compare it to, in terms of size, strength, capacity, and versatility around the textile friendly rated becket and main attachment.

I’m hoping to one day see Rock Exotica make some OmniBlocks that’ll take more than 1/2” rope, besides their monster 4.5” one. I can fit two carabiners in the eye of my 2.6” Omni.

Vicente · Feb 19, 2022

I use a little aluminum pulley that works with a carabiner to stay closed for my smaller rigging, it's made for a 5/8 rope. https://usrigging.com/extra-roll-aluminum-pulley/

I use these cmi blocks for anything with bigger than half inch rope for the most part if I'm using a bigger rope due to weight. Nothing fancy but they're cheap and have held up very well.

CMI 3/4" Zinc-Plated Arborist Rigging Block

The RP145 steel rigging block from CMI was designed for use by professional arborists in false crotch systems to help save wear and tear on bull ropes. Upper bushing maximizes sling strength

www.treestuff.com

treebing · Feb 20, 2022

5\8 is a really fat rope, overkill for almost anything. It will tire you out pulling it around a tree as well. 1\2 is plenty for pretty much anything, and 9\16 will rig out some huge wood. I would not put a 5/8 in either of those pulleys. When it flattens under loads, it can stress the sideplates.

27RMT0N · Feb 21, 2022

Personally I don't think 5/8" is overkill at all, and use it more often than not when negative rigging doug firs or making heavy pulls with a truck. It's always better to err on the side of too strong, than too weak, especially when you take into account strength loss from knots. That said, 9/16 is a good all around rope.