Duraband is a mica insulated heater incorporating a Low Thermal Expansion Alloy outer sheath that is used as a uniquely designed Built-In Strap.
It is a proven heater design for good life efficiency and dependability. It assures maintaining the lowest winding temperatures possible, keeping a low-mass heating element assembly for fast heat-up and quick thermal response to controls. It incorporates the Low Thermal Expansion Built-In Strap, a unique design feature originally developed and patented by Tempco.
The Duraband (Micaband) heater design is a reliable mica insulated band heater that can perform at the higher operating temperatures [up to 900°F (482°C)] essential to process high temperature resins, providing long, efficient service necessary for today’s high productivity of plastic extruders, injection and blow molding machines.
Tempco's Duraband Heaters are also configurable in irregular shapes such as Cone, Hexagon, Ring and Square/Rectangular.
Special Features:Most economical, versatile and commonly used
Duraband is a mica insulated heater incorporating a Low Thermal Expansion Alloy outer sheath that is used as a uniquely designed Built-In Strap.
It is a proven heater design for good life efficiency and dependability. It assures maintaining the lowest winding temperatures possible, keeping a low-mass heating element assembly for fast heat-up and quick thermal response to controls. It incorporates the Low Thermal Expansion Built-In Strap, a unique design feature originally developed and patented by matrusree.
The one-piece construction is available on any screw or lead termination and clamping variation. It can be used where band heaters can be slipped over the end of the cylinder.
The Duraband two-piece construction provides a built-in hinge, making handling and installation easier. It is used on large cylinders or where the heater cannot be slipped over the end of the cylinder. Two-piece band heaters are rated at watts and volts per each half when ordering.
The one-piece expandable construction is available on any screw or lead and clamping variation and can be used where a one-piece band heater would have to be expanded to fit over the barrel during installation, rather than slipped over the end of the barrel.
Partial coverage band heaters are normally required when holes and cutouts will not allow the heater to sufficiently clear the machine obstructions. The preferred method of construction is the Two-Piece Band Heater with Built-In Brackets as illustrated. The heater is screwed down to the cylinder at the ends and the built-in Low Thermal Expansion Strap pulls the heater tightly against the cylinder being heated. The standard center of hole to edge of heater dimension is 1/4". When ordering, please provide the angle of coverage from center to center of the mounting screw holes as shown.
The alternate method of partial coverage construction is the One-Piece Band Heater with a separate Two-Piece Strap. The two-piece strap itself is screwed down at the padded ends, allowing the heater to float between the pads as illustrated. When the strap is tightened, it will pull the heater against the cylinder being heated. The standard center of hole to edge of heater dimension is 1/4". When ordering, please provide the angle of coverage from center to center of the mounting screw holes as shown.
Another alternate method of partial coverage construction. The one piece with clamp screws on both sides allows it to be secured to anchor points on either side of a barrel without drilling holes into the barrel.
This construction style is used to heat cylindrical surfaces from the inside on heaters 5-1/2" diameter and larger.
This construction style is used to heat cylindrical surfaces from the inside on heaters 10" diameter and larger.
