Rockwell 18" Wedge Bed Planer

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Forum topic by motion posted 04-05-2019 11:11 AM 443 views 0 times favorited 2 replies Add to Favorites Watch
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6 posts in 334 days

04-05-2019 11:11 AM

I recently purchased a wedge bed planer (bad shape) and am restoring it, also I’m adding a Shelix cutter head. It has a 5HP/3450 RPM’s motor. I believe the pulleys (2.625 OD / 3.875 OD) are original but not sure. I can get either 5092 RPM’s or 2337 RPM’s on the cutter head. What’s a good cutter head speed? Thanks in advance for any thoughts or comments.

2 replies so far

View hkmiller's profile


156 posts in 559 days

#1 posted 04-05-2019 11:32 AM

We need some pictures of this thing

-- always something

View CaptainKlutz's profile


1746 posts in 1972 days

#2 posted 04-05-2019 12:21 PM

hmm, need more information: What is diameter of cutter head?

The key to machining anything is feed rate. Which for planer is related to both speed and diameter of cutter head.

FWIW – Commercial 15” & 20” Asia made planers typically specify a 5-6K RPM cutter head, and use a ~75mm OD head, with straight cutters protruding ~2 – 2.5mm.

Since you are working with US made Rockwell planer (22-20X?), you should be able to find information to help on

Best Luck.

-- I'm an engineer not a woodworker, but I can randomly find useful tools and furniture inside a pile of lumber!

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