Rockwell 4800 Jointer
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  1. #1
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    Default Rockwell 4800 Jointer


    I recently picked up a Rockwell 6" 4800 Jointer. I have lost significant time adjusting planer knives and was hoping I might be able to replace the cutter head to a more modern style which has self aligning knives?
    Any suggestions would be appreciated.

  2. #2
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    I'd put in a Byrd Shelix head. The carbide knives last for a long time, and it gets a great cut on highly figured wood.

  3. #3
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    I have an 8 inch Powermatic jointer. Setting the knives to project the same can be frustrating
    What happens is when you tighten the screws against the blade, they act like little cams moving the blade up or down.The only solution I have found is to sharpen them in the head. The same as on my planer.

  4. #4
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    On my jointer the adjustment screws had heads that were not completely flat. Thus a can action. I replaced the screws/nuts with some 316 inventory.
    I flattened the heads on the screws. I can get knives to almost .001 dead on. Still takes a lot of time.
    But not as much time when I sharpen the blades with a wet grinder with fixture.

  5. #5
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    Thank you for the replies.. I have dug into the Shelix head option but the initial cost was a little daunting.

    I am curious about how one would sharpen the blade while mounted in the cutter head?
    I’ve only changed the blades once and would like to simplify the process if possible.
    I have access to lathes and milllibg machines and could make basically whatever I’d need fixture wise.

  6. #6
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    You can set up a router with a cup grinding wheel. Lock your cutter head into position. Not great but it does make all the knives the same height. You may find something on utube to help you. On my 20 inch Oliver Jointer, I bolted my planer grinder on it, that worked well.

  7. #7
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    I have also the same problem with my Delta jointer. Did you resolve your problem?

  8. #8
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    I am a big fan of the Tersa cutter head and knives.
    30 seconds to change out a blade and perfect every time.


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