Tubular Nozzle Band heaters are recommended for heating applications where premature nozzle band heater burn-out on plastic injection molding machines is a constant problem due to contamination from a plastic overflow or contaminants.
Incoloy® sheath .315 diameter tubular heating element is used as the heat source. It is formed to the specified inside diameter to produce a snug, slip-on fit.
A low thermal expansion alloy is used to make the strap that houses the tubular heating element. The strap edges are rolled over the element to prevent the strap from separating from the tubular heater. Specially designed mounting brackets provide the clamping force required to tightly draw the tubular heater against the cylinder.
Electrical Terminations
Type C3: Single Armor Cable Out Top
Armor Cable provides excellent protection against abrasion and contaminants. The cable exits through an adapter that encapsulates both tubular heater ends. The adapter tube is tack welded to the heating element and the cable is crimped to the adapter for maximum security and seal protection. for maximum security and seal protection. 20″ of cable and 24″ flexible leads are standard.
Type W3: Wire Braid Leads
Wire Braid provides strength and protection to the lead wire insulation, offering sharp bending not possible with armor cable. 20″ of wire braid and 24″ flexible leads are standard.
Type T1: Screw Terminals
Screw Terminals will provide a rigid connection when it is required. The standard thread size is 8-32. If another type is required, specify when ordering. You should make special arrangements to properly insulate the electrical connections.
Type C1: Single Armor Cable
Armor Cable provides excellent protection against abrasion and contaminants. The cable exits through an adapter that encapsulates both tubular heater ends. The adapter tube is tack welded to the heating element and the cable is crimped to the adapter for maximum security and seal protection. 20″ of cable and 24″ flexible leads are standard.
Type C2: Individual Armor Cable
Armor Cable provides excellent protection against abrasion and contaminants. The cable is securely fastened individually to the tubular heater ends, allowing more flexibility for electrical wiring connections. 20″ of cable and 24″ flexible leads are standard.
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Eagle sensors, a division of Excel Automation, is an authorized Tempco Distributor. Contact us with any questions.