just bought a 1993 altec whisper chipper

[masterarbor]

I have only used hydraulic feeding disk style chippers in the past, so I'm trying to get up to speed with my new machine. I have been researching the chipper and have a question. Is there a difference between a chipper blade and a bed knife? I want to get a spare set of blades (bailey's?), and in my research, found people mentioning bed knives. Am I just being slow or is there a difference? Thanks!

 

[teamster]

bedknife, anvil, shear bar

The bedknife is also known as the anvil or shear bar. It is bolted in a fixed position at the bottom of the entry and adjusted to just slightly miss the rotating blades on the drum. Its purpose is to hold the bottom of the material in close proximity to the approaching rotating blades.

You can rotate it to the various previously unused squared and flat edges and continue to use it for a long time. Once all edges have been used, you can take it to a machine shop and have it refaced. If you keep it adjusted very closely with a very close tolerance, your fuel use, hp requirement and productivity will be maximized.

 

[Aaction]

The bedknife is also known as the anvil or shear bar. It is bolted in a fixed position at the bottom of the entry and adjusted to just slightly miss the rotating blades on the drum. Its purpose is to hold the bottom of the material in close proximity to the approaching rotating blades.

You can rotate it to the various previously unused squared and flat edges and continue to use it for a long time. Once all edges have been used, you can take it to a machine shop and have it refaced. If you keep it adjusted very closely with a very close tolerance, your fuel use, hp requirement and productivity will be maximized.

And chip quality!

 

[masterarbor]

thanks guys,

that makes sense, i'll check it out!

 

[elmnut]

check zenith for knives