Oregon 720-120 automatic chain grinder

[fordf150]

 

[fordf150]

 

[Philbert]

That in your shop now?

Philbert

 

[jakethesnake]

Details

 

[fordf150]

ordered it back in december and got the grinder last week but they forgot to ship the stand/tensioner. got it assembled and grinding today.

 

[Dub11]

How fast is it On a 84dl loop?

 

[fordf150]

IDK, I've done about 10 loops of .325 66DL and 1 72 DL loop of 3/8 so far.......depending on how you count that loop of 3/8. Went around it 3-4 times before i finally had the angles straightened out. Running full tilt on the 72DL loop it can be done in roughly 3 1/2 minutes. I had 6 minutes in the 66DL that it was set to do drags and gullets as well as sharpen.

 

[Dub11]

That's alot faster than I could do one.

 

[fordf150]

That's alot fast than I could do one.

thats just actual grinding time....setup you can easily add 2 minutes per chain unless they are all the same....and i mean identical. you have to count cutters on every loop and check every loop for double cutters or gaps in cutters so depending on loop size it can add some time just doing that. i didnt include setup time since its new and I still barely know how to run it and have to revisit the instruction manual on almost every chain.

 

[Dub11]

Does it do depth gauges too?

 

[fordf150]

cutters, depth gauges, cleans gullets

 

[fordf150]

not very good picture and not the greatest grind, this was my first couple attempts at using the 3 in 1 grind feature. it does show pretty well what it does with the gullets tho. gonna be a long learning lesson to get this thing down so i can set it up fast and make it do everything its supposed to do.

 

[Simondo]

May I ask.....It seems to take a fair amount of a grind at the setting the one in the vid was working at and seemed not to blue the cutter . Is there a air jet cooling the cutter or do you think it comes down to the disk material ? I have to be aware of the amount removed in 1 pass with my pink wheel hand grinder or i can blue the steel.

 

[Warped5]

Yah, seems to have a lot of contact time on each cutter ...

 

[fordf150]

no air or anything to cool the cutter. whatever these blue colored wheels are is 10x better than the common pink wheels we all use on the hand grinders. very little dressing of the wheel is needed and i wasnt able to be aggressive enough to blue the cutter, take too much or go too fast and it will leave the burr on the edge of the cutters tho.

 

[Philbert]

. . .gonna be a long learning lesson to get this thing down so i can set it up fast and make it do everything its supposed to do.

Learning curve with all new equipment.

Congrats!

Philbert

 

[Philbert]

. . . blue colored wheels are is 10x better than the common pink wheels . . .

Ceramic?

Philbert

 

[fordf150]

Ceramic?

Philbert

I believe so but need to read thru some paperwork to find out. they arent cheap thats for sure

 

[Warped5]

Ceramic?

I believe so but need to read thru some paperwork to find out. they arent cheap thats for sure

Interesting. I love the diamond wheel I got a few years ago.

 

[Philbert]

My local STIHL dealer just bought a Franzen; I understand that these are more 'affordable'.

Any objective differences between those and these that you discovered while making your decision?

Philbert

(Still waiting for the '$500 CNC grinder' rumored on AS several years ago!)