Bandsaw Blades FAQs

Bandsaws are cutting machines with two or more large wheels providing the impetus for the bandsaw blades which are wound in a circular loop around them. The blade is threaded through an aperture in a level work surface positioned between the wheels. 

The blade needs a certain level of tension to ensure it has enough resistance, known as beam strength, when you are sawing materials. If the tension is too slack, the blade won't cut straight and may even be derailed. 

 

Some cutting machines are equipped with an automatic tension meter. Alternatively, there are portable tension gauges you can use. Experienced bandsaw operators often test the blade tension themselves - while the machine is safely unplugged of course! They usually push the blade slightly to the side and watch for how much it springs out of line. An average deflection of around one-quarter of an inch is usually favourable for cutting most materials. 

At SawsUK, our three most popular, multi-purpose blades are bimetal blades, carbon steel blades and ground tooth blades. 

 

You can also find S42 structural bandsaw blades which are designed for cutting things like structural beams. We also have a wide range of coated special blades for special applications. 

Our bi-metal bandsaw blades are available in a range of widths and lengths. They have an edge of hardened cobalt steel that provides them with additional strength. They cut through all types of structural steel such as H-beams, angled sections, pipes and tubing. 

You'll get the best performance from a sharp blade. Once it becomes dull it's not usually worth the time or expense of sharpening it. Bandsaw blades are generally very economical, making a new one a much better option. 

Using the right type of blade for the type of material you need to cut is essential for achieving a clean, precise cut. It’s also important to use the correct type of blade for safety reasons. Our premium quality blades are manufactured to the highest specifications to provide reliable, high performance cutting. The materials they are made from usually make them suitable for particular sawing projects. 

The width often depends on the material you are sawing. A wide blade usually has a greater beam strength and is generally more suitable for cutting thicker or harder materials. However, the width affects the radius when cutting curves. 

TPI stands for Teeth Per Inch. The distance is measured between teeth. Metal usually requires more teeth per inch, while wood cuts well with fewer teeth per inch. 

 

To determine TPI of a blade, give us a call on 0800 521 292. 

Consider the metal and its structure. Please follow our guidelines and measure cutting depth, material thickness and take a note of the shape. 

Bandsaw blade width should ideally correspond to the diameter of the wheels. For instance, a wheel diameter between 18 inches and 24 inches should have a blade width of around 032 inches. A width of 035 inches is suitable for wheels up to 30 inches. Beyond this size, you can usually choose widths of up to 063 inches. A width that is too large may cause the blade to slip from the wheels. The best way to work out how wide your blade could be is to look in the manufacturer’s manual. 

A TPI of 6-8 is often ideal for sawing most types of wood. For wood ripping you will use 1-4 TPI. 

 

In general, sheet metal cut with a bi-metal blade is often best with a TPI of 14. Thick steel pipes should cut well with a 6-10 TPI. For aluminium, a TPI of 4-6 is usually recommended. 

In general, sheet metal cut with a bi-metal blade is often best with a TPI of 14. Thick steel pipes should cut well with a 6-10 TPI. For aluminium, a TPI of 4-6 is usually recommended. 

1. Cutting wood or metal in straight lines - achieve clean, well-defined edges 

2. Cutting wood or metal in curved designs - easily manoeuvre the material to create intricate, three-dimensional profiles 

3. Cut through pipes and H-beams made of metal, brick or concrete 

4. Saw abrasive materials including plastic, fibreglass and rubber car tyres 

5. Slice joints of meat, including the bones 

Knowing how to set your bandsaw to the correct speed is important. In general, harder steel requires a slower cutting speed than soft metals. Stainless steel usually cuts efficiently when using speeds of around 30 to 35 m/min. A speed of between 70 and 80 m/min is usually ideal for mild steel. When cutting a malleable metal such as aluminium, copper or brass, speeds of 150 to 1,000 m/min are usually recommended. However, for the best results, you should match the metal to your bandsaw blade. 

At Saws UK, we have the finest selection of blades for cutting machines from major bandsaw manufacturers that should be ideal for a wide variety of tasks. With our bespoke service, we can design and make any bandsaw machine and blade that's made to measure for your unique project. 

 

If you require any advice, information or guidance on bandsaws, whether it’s selecting the right machine for the job or ensuring you find the correct replacement blade, get in touch with our team. 

 

As one of the UK’s leading providers of professional saws and cutting equipment, we have many years of experience and will be more than happy to answer any questions you may have, or to help you find exactly what you need - simply get in touch to find out how we can assist you.