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Holdfast vacuum adapter

K

Kirk Witmer

Joined
Sep 12, 2022
Messages
27
Likes
13
Location
Tyrone, PA
I’m looking for the holdfast vacuum adapter, that part with the bearing where the hose attaches and the threaded rod connects. Open to similar products for a vacuum system.
 
I have the holdfast adapter, but it no longer holds a vacuum. I think the back seal is bad so I need to figure out how to reseal it
 
@Kirk Witmer Differences: Holdfast needs a compressor (noisy and power hungry). Oneway needs a vacuum pump (generally quiet and most use a fractional HP motor) which I prefer, but you probably don't have one at this time. Downside: threads onto the outboard spindle - which means you probably would have to remove the handwheel to install. PITA IMO.
Most lathes (that I'm aware of) have a hollow spindle - most likely true with your Grizzly. A slide in/out rotary adapter is the best and easiest option in my opinion. See @Tony Trigg example above. You just need to match your spindle's ID at the outboard end. I've been using a home made version since 1996.
 
Tom Gall said:
@Kirk Witmer Differences: Holdfast needs a compressor (noisy and power hungry). Oneway needs a vacuum pump (generally quiet and most use a fractional HP motor) which I prefer, but you probably don't have one at this time. Downside: threads onto the outboard spindle - which means you probably would have to remove the handwheel to install. PITA IMO.
Most lathes (that I'm aware of) have a hollow spindle - most likely true with your Grizzly. A slide in/out rotary adapter is the best and easiest option in my opinion. See @Tony Trigg example above. You just need to match your spindle's ID at the outboard end. I've been using a home made version since 1996.
Click to expand...
thats the vacuum generator by Holdfast. The through the headstock device can be adapted to use a regular vacuum pump.
 
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