2X72 Belt Grinder





Introduction: 2X72 Belt Grinder

About: They Call me Wallace.

This is my DIY 2 X 72 Inch belt grinder.

Step 1: Making the Body

Place the Metal like this….. and Weld it in to place Each Piece is 13 inches long Square tubing 2X2 And 4mm thick.

The Inner Pieces are 1 1/2 inch Square Tubing 3 Pieces One 17 inches long and two 15 inches long

the longest one goes on top it holds the Tracking Wheel. the other two go in the front of the grinder

top and bottom. one its for the Plate that holds the Two 2 inch wheels , the other one holds the Metal Plate that sits Flat. like a support Table.

Step 2: Base and Stand

Weld The Body to a Flat piece of metal.. Drill holes and place the whole thing on a thick base Wood in this case,

Step 3: Handle Holder and Handles

To Secure the Pieces that Go inside… You need to make handles. Drill holes on the metal use a big Nut.

Weld it in place and then you will be able to place the handles that hold the metal tubing in place so nothing moves or vibrates

Step 4: Tracking Wheel

On Top of the 17 inch pice make a tilting Tracking wheel holder. use a 4 inch Square tubing Cut it in a Angle

Make two holes on each side. and a bigger hole on front this is where the Wheel will go

secure the whole thing using Locking nuts.

Make sure it moves up and down .

Step 5: Handles

to make the handles i use a 4 inch long piece of metal and then welded a big Bolt to it. Cut it to size and grind it.

a bit of Black paint and presto.. You will need 3 Handles.

Step 6: Parts

This Parts I got From www.oregonblademaker.com

The Big Metal Part and 3 wheels Two are 2 inch. they go on the metal plate the other its 3 inch by 2 and it goes on top. that is the tracking wheel.

Square tubing 2X2 Inches And 4 mm thick 3 pcs 13 inches long one 5 inches long and 1 4 inches long.

3 Pcs 1 1/2 Inches Square tubing and 2m thick.

The Motor is a 200 mm grinder With a 8 Inch Wheel.

And a Flat 3 inches Wide by 5mm thick and 8 Inches long ..

All that is missing is the Actual Belt, 2X72 Inches. and a coat of paint.

So go and Make something…..

Step 7: Tools & Safety Gear

This is what you need to make this …...

Step 8: She Is Done

All done. Belts are coming.

Step 9: Modifications

Had to change the tracking arm due to Belt not
Fitting So I made a new tracking wheel holder
And new Arm. This one goes sideways instead of just up



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46 Discussions


1 year ago

How do you keep the drive wheel on? I've seen many different ways and was just curious.

1 reply

He is using a bench grinder for the drive system if you do the same you attach the drive wheel the same way you would a wheel for that

It is better to attach it to something with more support like a base that is made into the concrete of a floor in a workshop supported by a wall both using some sort of box steel or angle iron on the corners

http://dcknives.blogspot.ca/p/2-x-72-belt-grinder.html?m=1 very simlare build has everything you need the cominde 2 diys are nice

nope because I'm building one based off of the plans on your site lol.

This is a great intermediate step between the bench grinder with attachment and the full blown 72" grinder. For light to medium work this should be great. If you find yourself wanting, it's an easy step to just bolt on a new motor.

I bought a 1.5 hp motor and speed controller to fit mine, after I build the frame.

5 replies

What type of speed controller did you get? I recently got a 1.5hp 2x48 grinder that is single speed. I'm interested in having a VFD.

I bought the motor and controller from the motor company, but basically, it's a three phase 1.5hp 2800 rpm motor, and a 1.5hp VFD with optional external control. You can find the VFDs reasonably cheap on Ebay.

yes i will be getting a motor with a controller just have to with after i get back from holidays.. do you pictures of your set up?

I don't have all the wheels yet. My drive wheel is being machined by a friend, so when I have that I will put it all together.

Is it necessary to have the sideways tracking arm?
And could you please explain why do we have to add a hinge on the tracking wheel?
And what is a tracking wheel?
And did a 2x72 belt fit into your original setup?

(Sorry I have so many questions, I'm doing it the first time, and been saving up for it for a few months now. So just want to take every possible precaution)

1 reply

sorry for the late reply... having a hinge its necessary to be able to move the wheel

side ways, to keep the belt centred.

yes the 2x72 fits here........

When you made the mortification, how short did you end up cutting the arm, and how short did you cut the rear support arm to? Also did you weld the spring to the base? Or did you just weld a short bolt and then slid the spring inside of it to help keep it steady?
And lastly for the new wheel holder, did you just use a bolt and slid the wheel onto it or did you use a sleeve to mount it.
I am going to start building mines today. I hope that you are able to see this and answer before I start. Thank you.

2 replies

yes the pc its about 4 inches. but before you cut or drill holes.
make sure you have the wheel so you could mark the location. not too low or to high and you need another small hole for the bolt that controls the movement of the wheel. in and out.
hope to see pictures of your set up.

the arm was cut to 8 inches long and the spring is welded to the bottom. for the wheel holder i used a bolt the wheel has bearings so no need for a sleeve.
good luck with the build and have fun…...