Worn Jensen feed rollers.

[s o c]

Hi .

Feed rollers on my 141 chipper are now quite blunt.

they’ve been sharpened previously, once since I’ve owned it.

I was thinking  of talking both rollers to an engineering works and having about.5 mm to 1mm surface ground off each face.

Has anybody tried this?

I assume new rollers of this size will be expensive .

 Thanks 

 

 

[Mick Dempsey]

8 minutes ago, s o c said:

Hi .

Feed rollers on my 141 chipper are now quite blunt.

they’ve been sharpened previously, once since I’ve owned it.

I was thinking  of talking both rollers to an engineering works and having about.5 mm to 1mm surface ground off each face.

Has anybody tried this?

I assume new rollers of this size will be expensive .

 Thanks 

 

 

Problem is you change the pull in once you make the rollers smaller.

You can touch them up yourself very effectively with a flappy disc, in situ.

 

 

Just don’t reduce the size, tickle each side to improve the grab.

[Will C]

As mick says.
 

I find it easier to drop the hopper off for access but it’s not needed just makes it a little easier if you have a loader or a extra pair of hands. 

[Puffingbilly413]

13 minutes ago, Mick Dempsey said:

You can touch them up yourself very effectively with a flappy disc, in situ.

Have done the same with my old Entec - made a massive improvement.  Five mins with a flap disc v £450 odd to get replacement infeed roller blades.  Still pulling in well over 6 months since.

[s o c]

Thanks Mick.

I think they’ve been touched up a good few times and the surfaces are all a bit rounded so it’s hard to get a decent edge.

I can turn up the roller speed if I need to and I might need to grind a bit off the top roller blocks to keep the gap between the rollers the same.

 

[Mike Hill]

Buy new rollers and shafts. Treat it to a top UJ while you are in there.

[s o c]

Probably what should do alright (I’m just a bit mean)

im guessing they’ll be expensive.

 

[Mick Dempsey]

Think about the pleasure watching those forks getting crushed!

[woody paul]

I had an old Premier chipper and built up rollers with weld and them reshaped them the different in performance was great. You just have to now the angle you have to re-grind them too.

   

[Mike Hill]

12 hours ago, s o c said:

Probably what should do alright (I’m just a bit mean)

im guessing they’ll be expensive.

 

Not too bad from memory.

 

It is possible to sometimes press the shaft out of the rollers but you can never guarantee it and its just not worth the potential hassel.I had 100 tonn on one roller stub once at a shipbuilders workshop trying to press it out.We ended up boring out the shaft and washing the rest out with the Oxy. 

 

Getting the flats milled true on the back face of the roller teeth would probably be more expensive than buying new rollers and shafts.