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Wear parts for compressed sawdust

I have a piston type machine for manufacturing compressed sawdust fire logs. This machine is really very basic and has only four wear parts. Namely a piston head, wear nut, taper and wear sleeve. The finished product fire logs are 75 mm diameter.

The taper and wear sleeve need to be frictionless to manufacture a good log and highly abrasive resistant to last. Can somebody please help me to find a suitable abrasive resistant and low friction coating or steel / treatment for these wear parts.

Gerald van den Blink
firelogs - Cape Town, South Africa
2006

There are certainly alternatives, and some may even be better, but the 'standard' time-proven approach for components like this is hardening the steel and then hard chrome plating it. Good luck.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
2006

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