The most important precaution while using such machines is to use an eye guard and keep the blade well lubricated. Usually, all metal bandsaws need the metal to be fed to the metal bandsaw blade. Of course, there are other kind of vertical metal cutting bandsaw machines too that are designed to work on gravity driven blades that perform cutting action from side to side on a job that is firmly clamped down.

Certain jobs demanding smaller tool can be performed more conveniently using a metal cutting saw. They are especially helpful while performing cutting action on thinner metallic sheets. Metal cutting saws, being lightweight are handheld and need not be supported on any surface or ground. Though they too have a round blade like a band saw, you can get more precision results, which would be difficult on a bigger machine.

Modern machines don’t use the conventional blades made from tungsten carbide. In stead, they use CERMET- derived from a complex combination of metal and ceramic. This material is more durable than tungsten carbide and has better heat resistant characteristics. A hand held cold metal cutting saw allows you to perform the desired cutting action to the expected level of accuracy on sheets of metal up to a thickness of six millimeters.

Another feature needing highlighting the use of lightweight cold cutting saw is that its blade wouldn’t get heated, meaning it offers a longer life as the anti-corrosive coating remains in tact. A perfect handling of metal cutting saw doesn’t cause any blurs or symbols on the job. Most of the present day metal cutting saws have provision for collecting steel dust and particles by way of a colleting tray or a container. That prevents
steel dust from spreading all over the place.

A lightweight cold metal saw is most often used by sheet metal roofers. That’s because it offers them a convenient and efficient way of cutting and trimming of sheet metal and grooved iron that is still patronized for the purpose of roofing.

For metals that are too hard to be cut by an ordinary metal saw, you may need to use electric cutters or a saw with a specially made exceedingly abrasive blade.

Like the handling of any other tool, it takes sometime to get used to the way a saw performs the cutting action on metal sheets. If you are new to it, you would do well to practice on some good for nothing sheets that can subsequently be discarded as scrap or take the help of an experienced person and work under his supervision for a while till you feel confident of handling it on your own.

Bandsaw is salarge saw used for wood or metal cutting as well as for other materials. It has long, narrow, flexible blade( a narrow band of toothed metal that rides on two large wheels ) from which it’s name comes from .
It’s capable of ripping, cross cutting, beveled cuts and, curve cutting among other things.
They come as manual or fully automatic models with pedal-drive or electrical motor. Band Saw blade speed ranges from 40 feet to 5000 feet per minute.

There are two main categories when it comes to Bandsaws:
Metal Cutting BandSaws – with coolants to keep the blade cool and wire brush wheels clean the blade from chips and buildup metal.
Large BandSaws – they are used in timber mills for ripping because they have smaller kerf – (cut size).

Metal cutting Band Saws:

Fall mechanisms:
Pivot saws – it hinges in an arc shape as it advances through the material.
Single Column saws – the saw rides up and down on column.
Dual column saws – the saw is between two large columns that provide the needed support for presize work.

Feed mechanisms in Band Saws.
Gravity feed – saw falls under it’s own weight against a hydraulic cylinder with control valve. Gravity feed is usually used for small saws.
Feed mechanism used in Hydraulic feed saws – a positive pressure hydraulic piston pushes the saw through the material. It’s used mostely in production saws.
Screw feed – So called leadscrew moves the saw.

Automatic Band Saws are very practical and easy to use. You usually need one operator to feed and unload several saws. This is why they are mostly used in environments where you can’t have one operator per saw.

Large Band Saws:

Head saws are large band saws used to make the initial cut in a log. There’s a line of sliver teeth on the back. They are not used for cutting but to wipe slivers out of the way of the blade. Tooth space on the blade is between two and three inches.

Resaws – Band saws are fully capable of resawng and are much safer than the circular saw because there is no kickback. Band Saw is also much more efficient because it cuts faster and the waste is minimal.

Double cut saws are very large band saws with cutting teeth on both sides.

Basic Informations about Bandsaw