I have a 14" Jet with a 6" riser. This gives me an 11 depth. The 1 HP. motor barely gets it done with a fresh blade. I would suggest one with a larger motor.
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Band Saw Horsepower
- Thread starter Bryan Field
- Start date
You might insure your saw is aligned and the tension is right. Those and the wrong blade can make sawing thick stock difficult or impossible. As I mentioned earlier, I used an ‘80s/‘90s era 14” Delta with a cast iron frame and a 6” riser for years to resaw boards and process green log sections into turning blanks. That saw could handle 12” wet or dry stock with ease. I learned a lot from Mark Duginske’s book and one by Lonnie Bird, as well as the Itura Design docs.
To make the saw work I had to 1) align the saw, 2) replace a weak tension bracket, and 3) install a stronger tension It took me several years to sort this out. The low saw HP limited only the sawing speed.
I quickly learned that, assuming a sharp-sharp-sharp blade appropriate for the wood thickness, insufficient tension could be the biggest problem. And tension marks and indicator needles on EVERY bandsaw I’ve checked were way off, according to my tension gauge. (I use a Starrett but many have rigged up accurate gauges using digital calipers, a couple of small clamps, and some pieces of wood. It’s not rocket science, just measurement and math.) I’ve used my Starrett to “recalibrate” the tension indicators on friend’s lathes. I think every woodturning club should buy one to loan to members. They are easy to use.
I now use a larger saw with more HP, but still, the saw alignment, blade, sharpness, and tension have to be right.
JKJ
Is 7.5hp enough? And the blade is 19' long. Rockler probably doesn't stock those blades...
Other bandsaws at this site, catering to industrial users. That said, some prices are on par with prices some turners here pay for lathes.
$4500 will get you 3hp with a 20" wheel. And this is the small model from this manufacturer.
www.alpinetechco.com
Want to spend some serious cash on a serious bandsaw? Look up Northfield brand bandsaws, built in Northfield, MN.
Used Sold Tannewitz 36" GH Band Saw, 1984, 7.5HP, 3PH, 19' 5" Blade, Foot Brake, Auxiliary Table at John G Weber Co Inc
Tannewitz 36" GH Band Saw, 1984, 7.5HP, 3PH, 19' 5" Blade, Foot Brake, Auxiliary Table 7.5HP, 3PH 230/460V motor 35.5” throat capacity, balanced wheels 1/8”-1 ¼” blade width. 19.5’ blade length, 7.5 Hp direct drive. 36’ x 37’ cast iron table, Tabl...
www.johngweber.com
Other bandsaws at this site, catering to industrial users. That said, some prices are on par with prices some turners here pay for lathes.
$4500 will get you 3hp with a 20" wheel. And this is the small model from this manufacturer.
CANTEK 20″ BANDSAW - 3HP - HB500R
CANTEK 20″ BANDSAW - 3HP - HB500R Product Description Industrial design for every day bandsawing. The Cantek HB500R 20″ Bandsaw incorporates a robust design with economical price point. With its industrial cast iron wheels and table assembly it can handle any job. With its powerful 3HP motor...
www.alpinetechco.com
Want to spend some serious cash on a serious bandsaw? Look up Northfield brand bandsaws, built in Northfield, MN.
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In the college woodworking shop in the late '60s I used a bandsaw with a 20' blade. The machine was massive. All their biggest machines used 3-phase motors. It can be a effort to set up to use 3-phase motors without 3-phase coming into the shop.
There are Lennox bandsaw blade shops all over the country. I use a local one to make all my blades. Just take in an old blade if needed for him to measure. Sometimes he'll make blades as I wait. Sometimes I order a 100' length of blade stock and he makes it all into blades for me. My saw uses 11'10" blades. For most of my use, 1/2" 3tpi blades are perfect.
There are Lennox bandsaw blade shops all over the country. I use a local one to make all my blades. Just take in an old blade if needed for him to measure. Sometimes he'll make blades as I wait. Sometimes I order a 100' length of blade stock and he makes it all into blades for me. My saw uses 11'10" blades. For most of my use, 1/2" 3tpi blades are perfect.
I have the jwbs-18 3hp 220v...
I resawed and crosscut a 15.5" mesquite log. It was amazing. I got 7 blanks out of it.
3hp is plenty, I wouldn't say no to 5hp from 1.75, but I wouldn't upgrade my 3hp.
Is 7.5hp enough? And the blade is 19' long. Rockler probably doesn't stock those blades...
Used Sold Tannewitz 36" GH Band Saw, 1984, 7.5HP, 3PH, 19' 5" Blade, Foot Brake, Auxiliary Table at John G Weber Co Inc
Tannewitz 36" GH Band Saw, 1984, 7.5HP, 3PH, 19' 5" Blade, Foot Brake, Auxiliary Table 7.5HP, 3PH 230/460V motor 35.5” throat capacity, balanced wheels 1/8”-1 ¼” blade width. 19.5’ blade length, 7.5 Hp direct drive. 36’ x 37’ cast iron table, Tabl...www.johngweber.com
Other bandsaws at this site, catering to industrial users. That said, some prices are on par with prices some turners here pay for lathes.
$4500 will get you 3hp with a 20" wheel. And this is the small model from this manufacturer.
CANTEK 20″ BANDSAW - 3HP - HB500R
CANTEK 20″ BANDSAW - 3HP - HB500R Product Description Industrial design for every day bandsawing. The Cantek HB500R 20″ Bandsaw incorporates a robust design with economical price point. With its industrial cast iron wheels and table assembly it can handle any job. With its powerful 3HP motor...
Want to spend some serious cash on a serious bandsaw? Look up Northfield brand bandsaws, built in Northfield, MN.
If I were in the market, I would find this one hard to pass on.
I had one of these for many years, they are really great saws! I did a lot of resawing with it, but with the 880rpm direct drive motor, the blade was really going way too fast, blades didn't last long, especially in rosewood or ebony, around 9000 fpm. When I first got the saw, the Lenox field rep came by to advise me, and said 3000 fpm would be a more appropriate speed. Now I'm using a 20" Powermatic 81, 5hp. Works just fine, but I have a lot of rosewood to resaw and I'm going to fit it with a vfd to enable slowing it down.Is 7.5hp enough? And the blade is 19' long. Rockler probably doesn't stock those blades...
Used Sold Tannewitz 36" GH Band Saw, 1984, 7.5HP, 3PH, 19' 5" Blade, Foot Brake, Auxiliary Table at John G Weber Co Inc
Tannewitz 36" GH Band Saw, 1984, 7.5HP, 3PH, 19' 5" Blade, Foot Brake, Auxiliary Table 7.5HP, 3PH 230/460V motor 35.5” throat capacity, balanced wheels 1/8”-1 ¼” blade width. 19.5’ blade length, 7.5 Hp direct drive. 36’ x 37’ cast iron table, Tabl...www.johngweber.com
Also, if anyone wants a 36" Tanny, they go much cheaper at auction, often under $1K
Do you have any specific recommendations that you could recommend on sharpening bandsaw blades?
I sharpen blades with a Dremel tool, with one of two approaches. Either using a small round chainsaw bit (3/16" or so) and sharpen into the gullets, or with a larger flat disc and sharpen the top of the teeth using the flat side of the disc. I find the chainsaw bit easier, but a lot depends on the number of teeth etc. The fewer the teeth, the easier it is. My saw takes 115" bands, but soup to nuts, probably only requires 10 mins to sharpen.
Start by unplugging saw. Then either find the weld, or mark the blade with a sharpie. Raise the guard as high as possible and work each tooth. Rotate band, and repeat until the entire blade is done.
Usually will get 2-3 sharpenings this way before the set is gone, at which point, I buy a new blade.
I've seen other folks who sharpen off of the saw, using a vice or something to hold the blade.
I recently bought a knockoff of the Oregon 420 chain grinder to maintain my saw chains. It should work for steel bandsaw blades as well, with better consistency than a handheld tool.
Todd,
I mentioned this in post #14 in this thread but didn't provide any details.
I sharpen on the saw, using a Dremel with small metal-cutting disk. These disks are intended to cut a narrow slot with the edge and not with the side but it works fine. Barely any pressure is needed but still should wear safety glasses, of course. Good light. Dust mask to prevent breathing metal dust. Sharpening the blade is also a good time to check for defects in the steel, such as cracks at the weld.
I sharpen what might be called the front or outside of the tooth, the part that faces me. I know some say it's best to sharping the curved gullet but that's more effort without making a sharpening jig and sharpening the front works for me. I never take the blade off the bandsaw to sharpen.
I know others who sharpen this way. Too bad the amazing Steven Russell's website is no longer up - he had good instructions and sharpens much like I do. I downloaded his web site from the Wayback Machine (internet archive) and have it all on my computers but not sure how to share the info.
I've been sharpening this way for years, usually at least 3 sharpenings before I change the blade, sometimes 4 or 5. The blades I use are 1/2"x3tpi and with my saw that's over 420 teeth so it does take a bit of time but not too bad.
I mark the starting point on the flat blade sides and the fronts of maybe three teeth with a red sharpie. Can also attach a bit of tape as a marker.
I rest my hand on the table and hold the Dremel so the flat of the little cutting disk is aligned with the shop of a tooth. I grind near the top of the disk so the grind marks are horizontal. Touch the disk to the tooth for maybe 1/2 second. Make sure it's cutting all the way to the sharp edge - the sharpened spot will be shiny and easy to see. It doesn't need to be large, just a tiny spot at the tip. Pull down the blade with my left hand to position the next tooth. Repeat.
Some blade teeth are set left-right. My Lenox blades have the teeth set to the left, center, and right. I've experimented with swinging the sharpening disk so it's aligned with the the original three angles and compared to just sharpening each tooth straight across - I can't tell any difference in the resulting cut.
One thing - the last time I checked I was not a machine so there are small variations on the teeth. The result can be a rougher saw marks on the sides of the kerf. This doesn't affect what I mostly do - cut up log sections to make turning blanks to dry, cut away defects, cut dry blanks to size for turning. I'm faster now than when I first started this. takes maybe a second per tooth.
One think I tell others is how to know when the teeth are getting dull (besides a noticeable difference in the cut). Even dull teeth will feel sharp when lightly running the skin of a finger up the teeth. But run the flat of a finger nail or thumb nail up a few teeth - dull teeth will slide on the nail while sharp teeth will catch on the nail.
Another thing people usually asked in my bandsaw classes is how to coil a blade. Harder to explain in words than in person. I could try to write a description if anyone wants it. There are probably videos. A big, thick blade like those for my Woodmizer sawmill are difficult and can be dangerous. But even small thin blades can be tricky if you don't know how. Once you master making three loops, try 5 loops. Then if adventurous, try 7 coils!
JKJ
Thanks, I was not aware of the 3/16 Dremel chainsaw bit. Very helpful.
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In 1985 I bought a 1982 Delta 14" with a 1/2hp motor from a fellow who had used it to cut parts for a boat interior, almost all very small items. When I got involved in turning, I added the 6-inch riser and moved up to 3/4 hp -- not enough, I soon enough realized, for bowl blanks. I now have a 1-1/2 hp 3750 rpm motor (had to change pulleys to get proper blade speed), an Iturra tension spring, the Carter quick-release tension device, and this year I added the under-table dust collector from www.ety.com/thatboxmaker which works very well. I use 3/8-3 blades and still use Olson Cool Blocks guide setup that were original equipment. This has cut hundreds of bowl blanks for me, many sizes. I replaced the bearings all around in 2024, quite a chore but worthwhile. There are probably other improvements available but this has worked very well for me for 15 years now, any further improvement would require buying a larger saw for much more money. (I did have to replace tires twice.)
Sounds like you have an old friend there that you just wont let die. I could do the same, but I think I would just like to go to perhaps a 3hp saw. I currently have the delta running a 3/8 3tpi. It does fine for the 5 inch material. So I may just sit and wait on something used to come my way. Thanks for your input.
Corrected the link. Thanks for the info.
Go as big as you can afford. You won't regret it later when prices go up, and you start cutting some huge blanks.
This is sort of an old thread that came back to life but on bandsaws I think it is helpful to match resaw capacity to lathe swing.