Hobbs device

Lift with the mini, rope being redirected at the base with a block. Skip ratcheting bollard. Use minimum needed wraps and keep your hand on the rope, rather than tie-off at the cleat.
 
96coal449 said:
There is nothing wimpy about the grcs. Very well built. Actually they're all well built. The grcs has a 2 speed feature, and when something is cut loose in negative rigging the groundie can pull the rope thru the winch bollard to take up the momentary induced slack. The winch will ratchet right with it and re-tension the rope. It's more or less ....... how much do you want to spend?
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You can take up slack as a piece falls with the HOBBS. Advantage with HOBBS is you can lower big stuff on it. I think the GRCS is max 1000lbs on the winch? Lightweight.
 
As someone who has attempted to destroy HOBBS and GRCS I can only say the GRCS reminds me of a smashed ROLEX when a line snaps and a log hits it. Kind of disheartening.
In my opinion GRCS is good for horizontal limbs and HOBBS is best for vertical trees. The Stein isn’t very interesting to me even though I’m a fan of Coates.
 
Most recent Hobbs (Hobbs II?) has a Harkin with a wider winch drum as I understand it that will take one more wrap of 3/4 inch rope. Is the difference between the later Harkin and the earlier version where the specifications difference comes in, 3,000 lbs as opposed to 2,000 lbs?
 
flyingsquirrel25 said:
Yup, Mr. good proved the Hobbs was a stronger device very early on and published a video of him dropping a Volvo onto both devices. if you haven’t watched it you should!
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I’ve watched it but I didn’t remember the conclusion. I think it’s pretty easy to reach 3000lbs as a piece drops? I wonder how much weight is subtracted if the slack is ratcheted in during free flight?
 
Merle Nelson said:
Most recent Hobbs (Hobbs II?) has a Harkin with a wider winch drum as I understand it that will take one more wrap of 3/4 inch rope. Is the difference between the later Harkin and the earlier version where the specifications difference comes in, 3,000 lbs as opposed to 2,000 lbs?
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This I don’t know. I thought the GRCS was a Harkin winch and the HOBBS a proprietary spool.
 
NateCharlton said:
I’ve watched it but I didn’t remember the conclusion. I think it’s pretty easy to reach 3000lbs as a piece drops? I wonder how much weight is subtracted if the slack is ratcheted in during free flight?
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If we are letting pieces drop into it we are using the aluminum bollard or more often a port-a-wrap. The winch is for lifting which is done to avoid the drop and subsequent shock loading. Yes if improperly used 10,000 pounds is very easily reached. Really when you talk in terms of shock load the 1,000 pounds difference is not a whole hell of a lot especially when discussing the size pieces we are. But I guess it is the difference between a bollard flying off and it not! Still talking too close a margins for me! Hire a crane or go smaller, there is no need in the unnecessary risks no mater which device you have.
 
Hobbs is all Hobbs, the GRCS did get a new style winch that takes an extra wrap. They replaced the Harken 46st with the Harken 46st Arborist model.
Looks like Mr Good was drumming up so much business for Harken that they spent a little on engineering a winch for arborists rather than sailing.

There's also a Harken industrial riggers winch for 1/2" rope. Looks like it's geared towards rescue work.

IMG_4741_1000.webp
 
flyingsquirrel25 said:
If we are letting pieces drop into it we are using the aluminum bollard or more often a port-a-wrap. The winch is for lifting which is done to avoid the drop and subsequent shock loading. Yes if improperly used 10,000 pounds is very easily reached. Really when you talk in terms of shock load the 1,000 pounds difference is not a whole hell of a lot especially when discussing the size pieces we are. But I guess it is the difference between a bollard flying off and it not! Still talking too close a margins for me! Hire a crane or go smaller, there is no need in the unnecessary risks no mater which device you have.
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I think we are pretty much on the same page. I’m in the tall pines in NorCal right now. Mostly we are lowering with few chances to lift. If I was back east I bet I would want a GRCS.
 
Merle Nelson said:
Most recent Hobbs (Hobbs II?) has a Harkin with a wider winch drum as I understand it that will take one more wrap of 3/4 inch rope. Is the difference between the later Harkin and the earlier version where the specifications difference comes in, 3,000 lbs as opposed to 2,000 lbs?
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This is what I got, as well, but only for the GRCS and only for lifting. however the sticker still says 2k. The Harkin IS NOT for lowering, that's what the bollard is for.
"
Using the aluminum rope brake, the GRCS has a Working Load Limit (WLL) of 2,000 lb.

The Harken capstan winch on the GRCS has two settings providing a 44:1 and a 22:1 mechanical advantage, and a dead-lift rating of 3,000 lb."
 
The process is underway. So this 2-1/4" socket is gonna get cut shorter so the original holes can also be used to crank away. Then, the socket is gonna get put on a lathe for a clean yet tight fit, drilled, and tapped to accept a 5/16" SS button head. Just a straight bore through aluminum bollard. Hopefully all works out well. Ill take more pics of process. @Perlorus - thanks for pics and info!

IMG_0867.webp
 
Bango Skank said:
Hobbs is all Hobbs, the GRCS did get a new style winch that takes an extra wrap. They replaced the Harken 46st with the Harken 46st Arborist model.
Looks like Mr Good was drumming up so much business for Harken that they spent a little on engineering a winch for arborists rather than sailing.

There's also a Harken industrial riggers winch for 1/2" rope. Looks like it's geared towards rescue work.

View attachment 55265
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Harken is making the X-Rings / NOTCH rings now too. Looks like they are going to the trees now! LOL
 
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