bolting to a concrete garage floor

[Random Orbital Bob]

Ah right....Was grateful for the post but that seemed like a lot of making good work when Just bolting something to the slab seems simpler. Have you ever tried any of these thunderbolt type fixings ie where the bolt is driven directly into the slab with no "rawl plug style" plastic shroud? Whilst sounding amazingly convenient, I struggle to believe that a metal toothed bolt can get a decent fixing in a material so brittle as concrete? But if they work well, they sound by far the least hassle solution. Ie bore...and fix...doddle??? (or useless gimmick designed to part you from your cash)

 

[monkeybiter]

I have found them to be very easy and very good. I too was skeptical when I first saw them. They're quite cheap if no-one else backs me up you could test one yourself. I think you'll be surprised. By the way I've no connection with their manufacture or sale.

 

[Random Orbital Bob]

I will try them Mike. I didn't mean to second guess you by the way....its a natural "engineers scepticism" I think, I imagine the material and its properties, imagine the fixing, apply my own experience and come up with a viewpoint. To my mind, a metal fixing into a dusty brittle material doesn't add up. But your assertion that they work is just the kind of corroboration I need to overcome my doubts and give them a whirl. So that's where I'm going to start and give it a try. So thanks again for the input, it is appreciated.

 

[paulm]

Hi Paul

I haven't yet but am planning to. In fact I'm just about to post up my trusty BS300 for sale. It was that ash tree that tipped me over the egde, I need to process an entire tree so I need the larger capacities. Also its my birthday in a couple of weeks

I might just nip over to you and have a gander at your mobile setup before I jump because I would also like mine to be mobile ideally, provided that also handles the stability thang.
In any event I'll give you a shout if I make a trip to the Basingstoke store as I'm settled on the Axy 16" trade model. I did seriously review the startrites and the Jets but on bang for buck the Axy wins in that category.

Welcome any time Rob, well weekends that is for next few weeks until I finish up the current client project and can get back to more fun things !

If you want a hand getting it home and saving the delivery charge let me know. It will probably fit in your estate I'm guessing but if not it might in the jeep or my 6' trailer ? Either way happy to provide some extra muscle if helpful.

Cheers, Paul

 

[Random Orbital Bob]

That's appreciated Mr Schwarzenegger

 

[tool-me-up]

I will try them Mike. I didn't mean to second guess you by the way....its a natural "engineers scepticism" I think, I imagine the material and its properties, imagine the fixing, apply my own experience and come up with a viewpoint. To my mind, a metal fixing into a dusty brittle material doesn't add up. But your assertion that they work is just the kind of corroboration I need to overcome my doubts and give them a whirl. So that's where I'm going to start and give it a try. So thanks again for the input, it is appreciated.

They are not bad in plain concrete i.e between bricks in walls, ive only tried them once on proper concrete and they proved too difficult to screw in past the stones in the concrete - ended up snapping the head off one.
If you only have fine stones (pea gravel etc) in the concrete this shouldn't be a problem and they should work just fine.

10mm plugs and small coach bolts provide a good solid fixing and are quick and easy.

I think I just like burying things after i cracked the yard floor with expansion bolts - they leave a fair sized hole once they split the concrete around them selves lol.

Also through bolts will be quite effortless but you only get once chance at them - they are very difficult to remove so I would use them to fasten a timber runner to the floor and then fasten the saw to the runner.

 

[paulm]

That's appreciated Mr Schwarzenegger

I was going to send the missus actually, save my back :lol:

Cheers, Paul

 

[John15]

Hi Bob,
Another simple and cheep method you could consider is to use 12mm ragbolts, say 75 or 100mm into the slab and grouted in with a cementitous slurry, and as MM says no need to worry about any membrane that may be there. In any case you wouldn't be drilling to the full depth of the slab.
Cheers,
John

 

[n0legs]

For unknown substrates I do like the resin fix systems.

 

[Random Orbital Bob]

That's appreciated Mr Schwarzenegger

I was going to send the missus actually, save my back :lol:

Cheers, Paul

You're going straight down for that one!! At least after I tell her anyway

 

[MMUK]

I've been using the direct fix bolts for years to fix upvc, studs, etc. They are excellent. I would recommend you use a proper impact driver to fit them though, I managed to burn out an 18v metabo drill driver through lack of torque.

 

[Giff]

Bob
The best thing I ever did with my (heavy) bandsaw was to put it on a turntable, which is bolted to the floor as this post. post416020.html#p416020
The WIP and description is really good. I bolted the bottom MR MDF plate with these http://www.screwfix.com/p/fischer-thru- ... of-5/72317 ( ignore the write up, they are very good) I also put the base sheet on a layer of roofing felt in case of moisture / condensation. It is very stable, I have ripped 2.4m oak sleepers without problems. If you are still worried about the strength of the surrounding concrete you can squirt 2 part resin ( rawlplug do it) into the holes before bolting u. Geoff

 

[Random Orbital Bob]

I've been using the direct fix bolts for years to fix upvc, studs, etc. They are excellent. I would recommend you use a proper impact driver to fit them though, I managed to burn out an 18v metabo drill driver through lack of torque.

I've got the Makita 18v kit and the impact has become my go to driver. Small, light, incredibly powerful.

 

[Random Orbital Bob]

Bob
The best thing I ever did with my (heavy) bandsaw was to put it on a turntable, which is bolted to the floor as this post. post416020.html#p416020
The WIP and description is really good. I bolted the bottom MR MDF plate with these http://www.screwfix.com/p/fischer-thru- ... of-5/72317 ( ignore the write up, they are very good) I also put the base sheet on a layer of roofing felt in case of moisture / condensation. It is very stable, I have ripped 2.4m oak sleepers without problems. If you are still worried about the strength of the surrounding concrete you can squirt 2 part resin ( rawlplug do it) into the holes before bolting u. Geoff

Marvellous...I'll have a good gander of that..thanks Geoff.