Some models of bandsaws do provide the ability to alter the speed of the blade. The change of speed is usually accomplished by moving a drive belt to a secondary location on the pulley(s) of the drive pulley and motor pulley. Typically the speed to use for all of your wood cutting tasks with your bandsaw, regardless of the blade width or tooth configuration on the blade, would be the listed speed that is closest to 3000 FPM. The secondary speed offered on bandsaws with multiple speed capabilities is usually a speed that is one-half to one-third the speed of the 3000 FPM speed.
04-26-2003, 09:11 PM #1. 04-26-2003, 10:35 PM #2 I think you would need a 1 inch pulley on the motor, to a 17 inch pulley, which would be quite big. You’ll need to devise a countershaft and pillow block bearings to carry the intermediate speed pulleys. A simple step pulley arrangement can be used to select the band speed.
The speed range for cutting wood is wide but a comfortable speed is about 3000 fpm. The goal here is to build a speed reducing mechanism that will change a wood cutting bandsaw into a metal cutting bandsaw, while maintaining the original function of wood cutting. In the video above you can see the bandsaw being used at the reduced speed to cut 16 gauge mild steel, 3/16″ aluminum bar, and 3/8″ cold rolled steel bar.
Answer: Some models of bandsaws do provide the ability to alter the speed of the blade. The change of speed is usually accomplished by moving a drive belt to a secondary location on the pulley(s) of the drive pulley and motor pulley. A common speed for the bandsaw is about one thousand feet per minute.
09-13-2007, 7:48 PM #1 I am selling an older 14″ Delta bandsaw. “My calcluations indicate it is currently running around 2850fpm and that to change it to 1500 would require a 12″ driven pulley or perhaps changing to 2″/8” drive/driven pulleys. 09-13-2007, 11:23 PM #5 The way I have set it up on my Delta Bandsaw is to put a 3 phase motor and a VFD on it.
how to change bandsaw speed Related Question:
Why do bandsaws have 2 speeds?
The primary reason for speed adjustment on bandsaws is to accommodate different materials (mainly metal). That said, dropping the speed down for some operations can stretch the capabilities of an underpowered machine further.
What RPM should a bandsaw run at?
Bandsaws always use 1725 rpm. The 3450 rpm are way too fast. From contributor R: Depending on the size of the wheels bandsaw blade speeds can vary between 2000 SFPM to over 4500 SFPM.
What determines the speed for a band saw blade?
The Band Saw Blade Speed and Feed Chart is divided primarily by material size: Up to one inch, one to three inches, three to six inches, and over six inches. Below the material size is the suggested tooth pitch for that material size.
What is the difference between a metal and wood band saw?
A metal cutting bandsaw is typically built more solidly than a saw designed for cutting wood, so there are no issues with the machine itself. As for the blade, the wood fibers could clog the metal blade’s teeth more quickly, and the blade will probably cut through the wood more slowly.
How fast should a wood bandsaw run?
Bandsaw: Speeds. A common speed for the bandsaw is about one thousand feet per minute. Wood can effectively be cut at much higher speeds, up to and over five thousand feet per minute, but you should keep it slower because it’s safer.
What RPM should a metal bandsaw run?
You want the blade running at about 75 RPM for steel, 150 max. Any faster and you will work harden as you cut (due to heat build up) and fry your blade.
How do you find the peripheral speed of a saw blade?
To calculate SFPM: (1) Multiply the diameter of the blade times Pi (3.1416) to get the circumference, then multiply circumference by RPM to get inches per minute and (2) divide the inches per minute calculation (from step 1) by 12 to get the feet per minute. Best results on most materials would be about 15,000 SFPM.
How long is a 14 bandsaw blade?
Olson® All Pro&trade band saw blades 93-1/2″ length fits most 14″ band saws (Delta, Jet, etc.), hard back and exclusive material, in skip, hook, or regular teeth.
Which way should the teeth face on a bandsaw?
On a typical wood or metal cutting blade the hook or of point of the blade should be pointing down for a vertical blade bandsaw, or for a horizontal blade saw the hook of the teeth should be pointed such that they enter the workpiece first as the blade moves.
How high can a bandsaw cut?
The resaw capacity is the maximum height (thickness) that can be cut. For the small shop furniture maker, go with 14″ as the minimum for a bandsaw, though 16″ is better. Those doing larger work might even want 18″ or 20″ machines. Just make sure you have a minimum resaw height of 12″ for versatility.
Can I put a metal cutting blade on my band saw?
Typically if you run a metal blade on a wood bandsaw the excessive speed (2000 sfpm+) of the wood saw will knock the teeth off of your metal cutting blade in a hurry. You could make it work, but you would have to slow the blade drive wheel way down. Think 250 sfpm to 80 sfpm.
Can you cut metal with a wood band saw?
Band saws are not suitable for cutting very thin sheet metal; a rule of thumb suggests the metal to be cut should be thicker than the depth of 3 band saw blade teeth, however they are excellent for cutting thin walled profiles such as box and angle.
What speed does a circular saw run at?
It is clear that in the speed range from 1173 to 1500 rpm, the circular saw would easily be- come unstable and pose a hazard to the people working with it. Critical rotational speed theory of the circular saw has been a subject of many scientific publications.
When using a band saw how far should the upper blade guides be positioned above the work?
Make sure the blade is positioned properly on the track. Adjust blade guard height to about 3 mm or 1/8 inch to 6mm or 1/4 inch above the top of the material being cut. Wider gaps will place tension on the blade and increase the risk of breaking.
How many teeth does a bandsaw blade have?
The general rule of thumb is: For wood and soft materials aim for 3 – 6 teeth in the workpiece. For metals and harder materials aim for 6 – 24 teeth in the workpiece.