Built-to-Order Coil Heaters

O.E.M. Heaters offers fast delivery on built-to-order coil heaters for plastics processing, laboratory, and other uses. This informational page details the varieties and specifications for coil heaters we can build for you.

These built-to-order heaters usually ship within 5–7 business days – faster if expedited. We also carry some common nozzle heater sizes, usually in stock rather than built to order – see the Kappa Series.

To get a quote started, you can call us at (866) 685-4443, send us an e-mail, or fill out one of our contact forms.

Flat Coil Heaters

Precise fit and profiling optimizes performance of nozzles and other mating components.

• Flexible cold section
• Outside sheath to improve heating efficiency
• Inside/outside sheath with sealed end rings prevents contaminants from shortening heater life
• Moisture-resistant transition head
• High-temperature lead and potting option
• Higher watt density than a cable heater
• Custom-wound from straight stock for fast shipments

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Low-Profile Coil Heater

Delivers the same performance of a standard coil heater with a thinner profile. The height allows system designers to place drops closer to waterlines, enabling a smaller footprint. The width delivers higher wattage per linear inch compared to mini coils.

• Thinnest available coil heater with integrated TC (J or K)
• Flexible cold section
• Built-to-order ships in 5-7 working days
• Sealed transition head option for moisture-resistant applications

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Round Coil Heaters

This coil heater boasts compaction and flexibility, which is what helped it revolutionize the injection molding industry in the 1980s.

• Also used as a form-in-place heater
• Offers higher watt density than cable heater
• Flexible cold section
• Standard lead time is 5-7 working days (expediting available)
• Applications include: low-profile packaging, plastic injection molding, small manifold heating

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Mini Coil/Micro Mini Coil Heaters

High-performance heaters for smaller-diameter nozzles, nozzle tips; can be formed in grooves to create three-dimensional heating applications

• Proven durable heater for tight space constraints
• Wound with external thermocouple
• Form-in-place heater
• Staggered or single-head-transition head configurations
• Built-to-order ships in 6-8 business days (expediting available)

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Maxi Coil Heaters

The most durable coil heater on the market. Can support large diameters without the need for a pressed-on sheath. The larger size allows for higher voltages and greater watt densities. Excellent for large format injection molding and die casting applications.

• Robust 4.6 × 8.6 profile
• Thermocouple option
• 480V option

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Pressed-in-Brass Coil Heaters

Deliver the benefits of cast-in-brass coil heaters and eliminate known problems associated with the casting process. These coil heaters have better repeatability of winding profile and longer thermocouple life than traditional cast-in-brass heaters.

• Tight fit on nozzle
• Optimal heat distribution
• Up to 1200°F at inner brass casing
• Superior heat transfer
• Highly non-corrosive
• Built-in Type J or Type K thermocouple
• 100+ piece order quantity required for quote

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HotLock® Mini Coil Heater

Utilizes a positive locking positioning ring. Installation is easy. With a twist of the end cap ring, the heater is secured into position on the nozzle.

• Anti-seize coating for ease of removal
• Replaceable external thermocouple
• Profiled for more heat at the tip