Flextracoil - Industries & Applications

Although the most common application for the Flextracoil is externally heating flow-through nozzles in hot runner systems, this heater is also versatile enough to be used for hot metal forming punches and dies, sealing bars and dies, instrumentation and medical applications.

• externally heating flowthrough nozzles in hot runner systems
• hot metal forming punches and dies
• sealing bars and dies
• instrumentation
• medical applications

Flextracoils can also be modified to meet the demands of virtually any special application. Our engineers can utilize a variety of alternative features and options to customize the heater to your specific needs. Each Flextracoil heater is warranted against burn-out and defects in materials and workmanship for a period of one year after delivery.

The square and flat designs have a broader surface contact and are recommended over the round design. For short coil widths, the square element is recommended because of its narrower width, which will allow for more turns per inch.

Flextracoil - Material & Construction

• Corrosion resistant high nickel alloy.
• Annealed element.
• Highly compacted MgO insulation.
• Three cross sections available.
• Standard leads are Teflon® insulated, 40" (101 cm) long.
• Three termination types are available: fiberglass sleeving (standard), stainless steel braid or armor.
• With or without type "J" thermocouple.
• Customization is available.

Flextracoil - Lead Options

Flextracoil - Thermocouple

As mentioned before, the thermocouple is type "J". The thermocouple has been located 1/4" (6.3 mm) to 3/8" (9.5 mm) in from the tip of the element. This is due to the fact that when the heater is coiled, the tip does not conform to the coiling diameter. By moving it back, a more accurate reading is achieved.

Flextracoil - Product Diagram

Flextracoil - Sheathed Option (Flexicoil)

• Tutco's Flexicoils are designed for applications in which space is limited and can be used as replacement bands for externally heated nozzles and bushings
• With 0.040/0.045" diameter mica insulated construction and a durable stainless steel sheath, the Flexicoils can provide 360° of heat with temperatures up to 1000°F.