tire grander

[jbh25]

what it the buffer grinder from harbor fright that ever one is using they have a few diff ones just want to get the wright on

[talclipse]

what it the buffer grinder from harbor fright that ever one is using they have a few diff ones just want to get the wright on

http://www.harborfreight.com/7-inch-...her-66615.html then you'll need to get a different pad.

[jbh25]

Is that one better than the other one they have that goes down to 200 rpm's

[ferd]

Wouldn't you want high rpm's? Don't you want to just cut off the glaze and used up rubber? Slow speeds allow heat buildup that ruins the rubber underneath. Seen several guys ruin their night by grinding away until smoke is rolling off the tire.

[jbh25]

I don't no that's why I'm asking but I was told do do it slow so it didn't smoke

[rubbinsracin]

we use a regular black&decker 4" grinder. not variable speed or anything. we just make sure we are gentle with it and have never had bad results unless you just sit there and let it dig in. we use a metal grinding disk from speedway. next year we think we are going to go to a belt sander with some low grit paper.

[fastford]

i use a belt sander wit 40 or 60 grit belt, but you need a good one the cheap ones like harbor frt sales will burn up i use a dewalt.

[rubbinsracin]

how long does each belt last you? i have heard some people have to put a new belt on each time they do tires....is that right?

[Quickerthanu]

http://www.harborfreight.com/7-inch-...her-66615.html

The link provided above is very similar to the grinder we use on our tires and I'd pick up one of those. Leave it on the speed setting of 6 as max and let the grinding wheel do the work.

I use the 7" disc below and it works perfect!!!
http://www.speedwaymotors.com/Tire-G...iscs,4904.html




If your really in the buying mood pick up one of these too!!! Only $840!!



http://www.race-mart.com/Race-Mart-RMT-10565.html

[talclipse]

I would never use one of the metal grinding wheels. Those things are WAY too aggressive for anything but the most brick like compounds and the risk of one of those things taking a bad bite and winding up making contact with any part of your body just isn't worth it.

The variable speed is something you would be better off with than without. You will likely use a lower speed on softer tires and a higher speed on the harder stuff. I recommend using a 30-40 grit 7" grinding pad mounted on the foam backing pad. Buy the Harborfreight unit and get the extended warranty, each year you replace it for the cost of the warranty. You can increase the life expectancy of the buffer by keeping it blown out (rubber accumulates inside and ruins the trigger).

[rubbinsracin]

we use the 4" version of the metal disc above with the non adjustable grinder. we run the wrs2 d55s and they barely scuff if you are gentle with the grinder. hell the guy next to us uses one of the nail head grinders. now that thing eats tires. but i do think that the sand paper would be the way to go.

[Quickerthanu]

It's all in the pressure on how much you want to remove. Knock on wood we have never had an accident with the metal disc and it removes the perfect about out rubber even on our soft Hoosier D-40 e-mod tires we have to run on our stock car.

Like I said the key is to let the tool do the work, nice and easy, and not hunker-down on it and cut thru all the tread.


The sandpaper may work but I noticed on the disc it doesn't ball or gum up at all, where I would think the paper would....not to mention having to replace the belt all the time.


just my 2 cents

[talclipse]

It's all in the pressure on how much you want to remove. Knock on wood we have never had an accident with the metal disc and it removes the perfect about out rubber even on our soft Hoosier D-40 e-mod tires we have to run on our stock car.

Like I said the key is to let the tool do the work, nice and easy, and not hunker-down on it and cut thru all the tread.


The sandpaper may work but I noticed on the disc it doesn't ball or gum up at all, where I would think the paper would....not to mention having to replace the belt all the time.


just my 2 cents

I just am not a fan of those medal blades. I have seen a few people get nicked with them and they tear through flesh even more efficiently than they do rubber.

I use the variable speed deal (I have under $100.00 in the entire setup) and I go through maybe one or two grinding pads per season. They never really clog with rubber. The adhesive just kind of wears out and they end up getting flung off the grinder/ buffer. So I can't give any feedback on using a belt sander; I would THINK it would kick and jump around a lot?

Be careful with those medal disks if you chose to use them; I'd invest in a heavy duty apron just in case it jumped back at you. I wouldn't even consider using the nail pad; that thing looks like something out of a horror movie.

[pajamie]

right buffer... WRONG wheel.. stay away from those metal wheels.. All that do it rip into the tire of your not careful and do wonders on your finger if you ever hit yourself with it by mistake..

That buffer is the bomb.. Got mine at Habor Freight a few weeks ago..

Ordered my soft backpad and disks from www.autobodytoolmart.com Here are the part numbers you need..

3M Green Corps Stikit 8" Production Discs-80 Grade Discs - 01549
SKU: 4272



3M Stikit 8" Air Disc Pad - 05579
SKU: 4324

[Quickerthanu]

Apron....I forgot to add that I do wear a heavy apron to mainly keep the rubber bits off me, as well as gloves and safety glasses.


Regaurdless of what your doing with a grinder, safety is first.



.....unless it's a grinder like this, then just a napkin will do.

[merc123]

Belt sander. It can kick up and bounce if you get the angle wrong. I actually tilt the sander a little so you're mainly sanding off the from roller instead of the whole thing. Then you can bring it down a little so you're using more of the belt.

[fastford]

you are correct merc, also what i like about the belt sander is its much easier to control the direction of the grind when doing front or rear tires, i cant remember the brand i use right now, i get them from a local air gas welding supply, but they will out last the harbor freight ones 10 to 1, im not knocking harbor freight , i use a lot of there stuff, but with these belts i found there abrasive is not bonded as well as the more expensive higher quality ones and it will turn lose , sometimes you get what you pay for.

[bushracing67]

i also have the 7" man eater wheel, it worked good but i was nervous using the (not a nice word)(not a nice word)(not a nice word)(not a nice word) thing, and honestly that is about the only thing that has made me nervous in the last decade... i found this one at harbor freight - http://www.harborfreight.com/4-1-2-h...eel-66613.html - way less smaller carbide grit, i was grinding tires as soft as american racer 33 and hoosier 1300 with no blistering, works amazing, i use a bluepoint grinder with a D-handle that i made which greatly helps control the grinder... harbor freight grinders belong in china lol i went thru 2 without finishing the first tire i was working on, called my snap-on guy and got the bluepoint and still have it 6 years and god only knows prolly 100+ tire grinds later

[grasshopper]

I agree with bushracing67 I got a blue point (sander/buffer) from my snap-on guy use the hell out of it I buff tires with it and buff cars with it at the body shop were I work at. I love it its better than the Horbor Freight ones the you buy and throw away after the first use.

[fast_crew]

We have the older orange and black H/F sander/buffer( don't know if you can still get that one). 2 Years and still going, we use a rubber backing pad with the big 60 grit sanding discs that is held on with a nut in the center. Go through maybe 2 discs a year. This is on Sprint car tires, much larger then late model tires.