How To Utilize Stock Thinband Heaters

Thinband Stock – Mica Heaters

How to Utilize Heat and Sensor Technology’s Universal THINBAND Barrel Stock Program: Heat and Sensor Technology has a select stocking program that encompasses uniquely patented flexible THINBAND barrel heaters with LA terminations, available in varied diameters and widths. The band heater diameters range from 76.2 to 228.6 mm (3 to 9 in.) in 6.35 mm (0.25 in.) and widths in 38.1 mm (1.5 in.), 50.8 and 76.2 mm (2 and 3 in.). Sizes can be combined if required, to create a two-piece assembly range from 228.6 to 457.2 mm (9 to 18 in.) in diameter, and combinations between 76.2 and 457.2 mm (3 and 18 in.) for custom two-piece assembly. This versatility should satisfy almost any requirements whether millimeter or inch size barrels need to be constructed. Regarding possible slight wattage differences varying between your original heater to your THINBAND replacement, you must keep in mind that about 80 percent of the wattage is required to bring the barrel up to temperature. The 20 percent remaining is used to offset radiation and convection heat losses. For example, if you have a 550 watt heater, there will be no harm in using a 500 or 600 watt stock THINBAND barrel heater replacement. There are three solution approaches for incorporating a THINBAND heater combination from Stock.

Sample Predicament:

A customer needs a 254 mm (10 in.) diameter heater, yet neither the size nor width needed, is in stock.

Solution Options:

1) Take two 127 mm (5 in.) diameter heaters and curve them at a 254 mm (10 in.) diameter. Please note: A QUICK CLAMP has to be added order for the heater to fit. This heater is offered at a next day delivery. 2) Take two THINBANDs as noted in solution #1 but mix each diameter. For example, 101.6 mm (0.25 in.) and 152.4 mm (6 in.) diameter or a 120.6 mm (4.75 in.) diameter with a 133.3 mm (5.25 in.) diameter equal 254 mm (10 in.). Again you need a QUICK CLAMP, offered with next day delivery. 3) Take two THINBANDs as in solutions #1 or #2, but subtract a 6.35 mm (0.25 in.) to the diameter, and supply without the QUICK CLAMP for same day delivery. For example, for a 254 mm (10 in.) diameter, any combination of 248 mm (9.75 in.) should be supplied to fit the 254 mm (10 in.) diameter requirement. The reason you have to reduce your selection size by a 6.35 mm (0.25 in.) is to ensure a gap exists when tightening the clamp bars – otherwise you will run out of gap, and the bars will touch before you can tighten the heater completely to the barrel. Note: This construction is only necessary when QUICK CLAMP is not included. Thinband Common Applications: Blown film dies, Injection molding machines, Extruders, Other cylinder heating applications