Delta 28-348 instruction manual Band SAW Blades, Suggested Metal Cutting Blades and Speeds

BAND SAW BLADES

A band saw blade is a delicate piece of steel that is subjected to tremendous strain. You can obtain long use from a band saw blade if you use it properly. Be sure you use blades of the proper thickness, width, and temper for the various types of material and cuts.

Always use the widest blade possible. Use narrow blades only for sawing small, abrupt curves and for fine, delicate work. This will save blades and will produce better cuts. For cutting wood and similar materials, Delta offers blades in widths of 1/8", 1/4", 3/8", 1/2" and 3/4". Delta also offers several 1/2" blades for metal cutting of different teeth per inch configurations.

Any one of a number of conditions may cause a band saw blade to break. Blade breakage is, in some cases, unavoidable, being the natural result of the peculiar stresses to which blades are subjected. Blades will break often due to avoidable causes, such as the lack of care to the blade or the blade not being properly adjusted to the band saw. The most common causes of blade breakage are:

(1)faulty alignments and adjustments of the guides.

(2)forcing or twisting a wide blade around a curve of short radius.

(3)feeding the work piece too fast into the blade.

(4)dullness of the teeth, or absence of sufficient set.

(5)improperly tensioned blade.

(6)top guide set too high above the work piece being cut.

(7)using a blade with a lumpy or improperly finished braze or weld.

(8)continuous running of the saw blade when not cutting.

Use blades that are 93½" in length on this machine.

Always use a sharp blade. Keep it free from gum and pitch. Clean frequently with a stiff fiber brush.

Narrow blades are used for cutting small circles or curves while the wider blades are best suited for straight cutting such as ripping.

A new blade, in most cases, will perform better and last longer than a re-sharpened blade. Ensure that the blade guides are adjusted properly.

Do not force or twist the blade around a curve or a very short radius.

Feed the workpiece through the blade at a consistent rate, allow the blade to do the cutting – do not feed the work piece too fast. Do not apply excessive tension to the blade. Set the tension to the proper tension as shown on the tension scale.

SUGGESTED METAL CUTTING BLADES AND SPEEDS

	UNDER ¼”		¼”1/	TO ¾”			1 “AND UP
MATERIAL	TEETH	FPM	TEETH			FPM	TEETH		FPM
STEELS	PER			PER			PER
Angle Iron	INCH			INCH	160		INCH
	24	160	14
Armor Plate	18	40	14		40		10	40
Carbon Steel	24	85	14		60		14	40
Chromium Steel	24-18	85	14		60		14	40
Cold Rolled Steel	24-18	220	14		220		14	160
Drill Rod	14	85	14		60
Graphite Steel	18	60	14		40		14	40
Hidfh speed Steel	24	85	14		60		14	40
Machinery Steel	18	160	14		160		14	160
Molybenium Steel	18	85	14		60		14	40
Nickel Steel	18	40	14		40		14	40
Silicon Manganese	18	85	14		85		14	60
Stainless Steel	24	40	14		40		10	40
Structural Steel	24	160	14		160		14	115
Tungsten Steel	18	40	14		40		10	40
FOUNDRY METALS					335
Brass-hard and soft	18	335	14				10	335
Bronze – Aluminum	18	335	14		335		14	335
Bronze – Manganese	18	160	14		115		14	85
Bronze _ Naval	18	160	14		115		14	85
Bronze – Phosphorus	18	335	14		335		14	220
Cast Iron – Gray	18	115	14		85		10	60
Cast Iron – Malleable	18	160	14		115		14	85
Cast Steel	18	160	14		115		14	85
Copper – Beryllium	18	160	14		85		10	40
Gunnite	24	335	18		220		14	160
Meehanite	18	160	14		115		10	85
Monet	18	115	14		85		10	60
Nickel – Cold Rolled	14	60	10		40		10	40
Nickel Silver	18	220	14		220		14	220
Silver	24	220	18		220		14	220
NON-METALS					220
Bakelite	10	335	10				10	160
Cork	10	3000	10		3000		10	3000
Fibre	14	3000	10		3000		10	3000
Hose –Canvas, Rubber	10	3000
Hose – Mettalic	24	220			220
Mica	24	335	18				14	220
Plastics	14	3000	14		3000		10	3000
Porcelain	24	160	18		115
Slate	24	335	18		220		14	160
Transite	24	335	18		220		14	85

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