Self sharpening your chipper blades

[morten]

Get yourself a wet grinder with a jig, that can hold the blade and ensure a consistent angle.

 

A good choice is the Tormek T3 Tormek Wet Grinder T-7 T-3

 

I believe the planer blade jig would be suitable for holding most chipper blades: http://www.tormek.com/en/jigs/svh320/index.php

Edited December 24, 2013 by morten

[Breezeblock]

i used to do ours on the lathe but i was worried about the carbide affecting the slides so i made up a jig to do them on the mill

[openspaceman]

 

The boys reckon it's a couple of hours work as the machine only takes off 2 thou at a time. Any more and you'll start heating the blade up and losing hardness.

 

I watch ours being done and that's how our fitter does them, with suds, even so I sometimes see sparks. The thing is it only needs something like 300C to take the hardness off a blade.

 

Hand honing with a diamond file on the machine works for my TP, which won't feed twigs at all if slightly blunt, I do wonder about sharpening the feed rollers but it's really designed for chipping roundwood fuel.

[Arbtech Tree Services]

I do wonder about sharpening the feed rollers.....

 

Mine's done 1370 hours and the rollers could do with a sharpen, i was tempted to have some teeth welded on like the Greenmech ones. TP now do a toothed replacement top roller but it's about £270

 

Regards,

 

Steve.

[kentjames]

i used to do ours on the lathe but i was worried about the carbide affecting the slides so i made up a jig to do them on the mill

 

Surely that is way past the witness mark on that blade shown??

[likeitorlumpit]

Surely that is way past the witness mark on that blade shown??

 

Thought the same James

[woody paul]

Sharpened my chipper blades with a bench grinder for a couple of years now with no problems take it slow. Sharpen the pair of them as 1 by holding them in a clamp I made out of some flat bar.

[White Noise]

Mine's done 1370 hours and the rollers could do with a sharpen, i was tempted to have some teeth welded on like the Greenmech ones. TP now do a toothed replacement top roller but it's about £270

 

Regards,

 

Steve.

 

I welded some serrated teeth to my old timberwolf 125 single roller feed . It worked far better with my simple modification than it did from new

[daveindales]

I've been sharpening mine for about 7 years with my bench grinder and jig. Never had a rotor bearing in yet.

[Old Mill Tree Care]

i used to do ours on the lathe but i was worried about the carbide affecting the slides so i made up a jig to do them on the mill

 

Mate, don't use those blades!

There is not enough metal left between the bolt holes and the sharp edge. The blades can shatter causing loads of damage.

 

 

Sent with my iPhone from me, to you!