No Bog Air Tools

[ekimneirbo]

What brand air die grinder and/or angle grinder have you used that doesn't tend to bog down?

I have a larger volume of air supply because I used the larger size orifice industrial fitting connectors instead of automotive fittings and a 175 psi
pump with plenty of cfm. I always test compressors for their ability to "keep up" with air tools by checking to see if I can turn the air tool on at zero pressure and seeing if the pump will run the tool and build up pressure at the same time. Anyway, air volume and pressure are not an issue. I have some good air tools, but I also have some cheap HF die grinders that bog. I want to replace them with some that have more power, especially the angle grinder.

What works well for you, and appx cost ? Thanks in advance !

 

[Phantomd]

Unless you are working autobody wouldn't a cordless tool be better?

 

[Sloper0204]

I've never seen a grinder that doesn't bog down if you are actually using it, all the way up to 9" angle grinders being ran on constant air machines.

If an Ingersoll 9" will still bog with 250++ CFM of unregulated air running through a 3/4" hose with chicago fitting, your little die grinders aren't ever going to "not bog" unless you just don't use any *** behind them.

 

[ekimneirbo]

I've never seen a grinder that doesn't bog down if you are actually using it, all the way up to 9" angle grinders being ran on constant air machines.

If an Ingersoll 9" will still bog with 250++ CFM of unregulated air running through a 3/4" hose with chicago fitting, your little die grinders aren't ever going to "not bog" unless you just don't use any *** behind them.

Let me clarify: I'm not looking for suggestions for brands that cannot ever be bogged down when someone puts every bit of *** they possess onto the tool.
I'm looking for tools that don't easily bog down every time you cut through a sheetmetal panel and don't require the use of ones *** ! I've seen lots of grinders on the different custom car channels that work a whole lot better than what I currently have. They easily cut through the panels and make long cuts without bogging down. Doubt they are using 250cfm. You got any suggestions that might actually be helpful?

 

[Marlin]

Let me clarify: I'm not looking for suggestions for brands that cannot ever be bogged down when someone puts every bit of *** they possess onto the tool.
I'm looking for tools that don't easily bog down every time you cut through a sheetmetal panel and don't require the use of ones *** ! I've seen lots of grinders on the different custom car channels that work a whole lot better than what I currently have. They easily cut through the panels and make long cuts without bogging down. Doubt they are using 250cfm. You got any suggestions that might actually be helpful?

You want to look for a governed grinder, which are typically industrial models. The free speed is controlled by a governor so they can be designed to operate closer to peak horsepower as opposed to grinders that whose max rated speed is what the tool will do running flat out i.e. theoretically at 0 hp.

 

[Sloper0204]

You got any suggestions that might actually be helpful?

Learn how to use a grinder?

You want to look for a governed grinder, which are typically industrial models.

Exactly this.

 

[CR888]

I think Shinano make a high torque die grinder, it doesn't do 30k rpm its more like 15-18k but is much more torquier....is torquier even a word or did I just make that up.

 

[rlitman]

You want to look for a governed grinder, which are typically industrial models. The free speed is controlled by a governor so they can be designed to operate closer to peak horsepower as opposed to grinders that whose max rated speed is what the tool will do running flat out i.e. theoretically at 0 hp.

Those will be turbine grinders, rather than vane motors. Expect to pay at least 10x (probably much more) than you'd pay for a similar vane motor machine. But expect 10x the performance as well.

I can remove more steel more quickly with a carbide burr in my 1/8" pencil turbine grinders than I can with my 1/4" HF die grinders.

 

[vanapplebomb]

Those will be turbine grinders, rather than vane motors. Expect to pay at least 10x (probably much more) than you'd pay for a similar vane motor machine. But expect 10x the performance as well.

I can remove more steel more quickly with a carbide burr in my 1/8" pencil turbine grinders than I can with my 1/4" HF die grinders.

What do you mean? There are loads of reasonably priced governed grinders that have vain motors. Even the Harbor freight 4 1/2” angle grinder is governed. You don’t want to over-rev the grinding wheel for risk of it coming apart. Actually, come to think of it, I haven’t seen a 4 1/2” + air powered grinder that isn’t governed.

 

[sberry]

Here is my 3 power picks if you have the air. Good, powerful, last a long time. Buy another 4 right angle for cut off wheels.

 

[Marlin]

Those will be turbine grinders, rather than vane motors. Expect to pay at least 10x (probably much more) than you'd pay for a similar vane motor machine. But expect 10x the performance as well.

I can remove more steel more quickly with a carbide burr in my 1/8" pencil turbine grinders than I can with my 1/4" HF die grinders.

While turbine grinders are available there are also traditional rotor/vane type grinders that fit the bill.

 

[ttpete]

Those will be turbine grinders, rather than vane motors. Expect to pay at least 10x (probably much more) than you'd pay for a similar vane motor machine. But expect 10x the performance as well.

I can remove more steel more quickly with a carbide burr in my 1/8" pencil turbine grinders than I can with my 1/4" HF die grinders.

I have a larger ARO turbine grinder that's rated at 85,000 rpm. It has only a 1/8" collet. It's amazing the amount of metal it'll remove using a carbide bur.

 

[scubadoober]

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