Shops, Barns, Varmints, and Trucks - Buzz saw blade speed

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Buzz saw blade speed

Printed From: Unofficial Allis
Category: Other Topics
Forum Name: Shops, Barns, Varmints, and Trucks
Forum Description: anything you want to talk about except politics
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=180379
Printed Date: 31 Oct 2025 at 4:52am
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Topic: Buzz saw blade speed

Posted By: littlemarv
Subject: Buzz saw blade speed
Date Posted: 06 May 2021 at 9:34pm

What RPM should a 18" buzz saw turn at?

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The mechanic always wins.

B91131, WC23065, WD89101, CA29479, B1, Early B10, HB212, 416H

Replies:

Posted By: steve(ill)
Date Posted: 06 May 2021 at 10:07pm

To cut wood a blade tip ( tooth) needs to run approx 150 feet per second...

18 inch is 4.7 feet around the outside ( circumference)

150 ft / 4.7 ft = 32 rev per second

32 x 60 = 1900 RPM

running a little faster cant hurt, .... figure 2000 RPM as a " good" speed.

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Like them all, but love the "B"s.

Posted By: littlemarv
Date Posted: 06 May 2021 at 10:10pm

Perfect, thanks. Exactly what I was looking for.

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The mechanic always wins.

B91131, WC23065, WD89101, CA29479, B1, Early B10, HB212, 416H

Posted By: steve(ill)
Date Posted: 06 May 2021 at 10:14pm

the 1900 rpm is for an older well used saw ( sawmill...).... a newer unit might run 2000 - 2400 rpm as the "sweet spot) ...... do NOT go to 3000 RPM on an 18 inch saw.

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Like them all, but love the "B"s.

Posted By: littlemarv
Date Posted: 07 May 2021 at 9:13am

OK, thanks. I have a handheld tach and will get it dialed in.

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The mechanic always wins.

B91131, WC23065, WD89101, CA29479, B1, Early B10, HB212, 416H

Posted By: allischalmerguy
Date Posted: 13 May 2021 at 10:41pm

I have always thought having a buzz saw would be nice help.

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It is great being a disciple of Jesus! 1950 WD, 1957 D17...retired in Iowa,

Posted By: ac fleet
Date Posted: 16 May 2021 at 8:42pm

I used to run a 30" buzz saw on Dads old 35 wc. ran it half throttle and worked fine. ---- smaller blade would have to run faster.

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