Coil / Cable / Nozzle Heaters

Build-to-Order Heating Solutions

The Right Thermal Solution for You

Precise. Durable. Versatile. Nexthermal Coil Heaters deliver the performance you need.

What is a Coil Heater?

Coil heaters, also referred to as cable heaters, hot runner nozzle heaters, spring heaters, hot sprue heater, or micro tubular heaters.  Though often found in a spiraling or winding shape, a coil heater is not named after the shape of its exterior; the name refers to the resistance wire inside the heater that has a small winding pattern throughout the length of the heater.

Coil Heater Applications

  • Plastic Injection Molding
  • Mass Spectrometry
  • Top Seal Packaging
  • Food Production

Nexthermal Coil Heaters

  • Range from Micro Mini to Maxi Coil heater so you can choose the right size and wattage capability for your application
  • Have internal thermocouple options or could be used with external thermocouples
  • Can be wound to directly fit a nozzle, embedded in a thermal mass for nozzle, formed  into a grove for three dimensional heating, or would as an easy to remove cartridge heater alternative
  • Can be manufactured with longer cold sections to allow higher temperature applications to utilize flexible leads and moisture resistance

Coil Heater Profile Comparison

Coil Heater Profile Comparison - Round
Round
Warranted Watt Density: 39 W/in²
Coil Heater Profile Comparison - Flat
Flat
Warranted Watt Density: 48 W/in²
Flat Pressed in Brass Coil Heater - Nexthermal
Flat - Pressed in Brass
Warranted Watt Density: 96 W/in²
Mini Pressed in Brass Coil Heater
Mini - Pressed in Brass
Warranted Watt Density: 80 W/in²
OD Sheath Coil Heater
OD Sheath
Warranted Watt Density: 65 W/in²

Wind from Stock

2.5 mm x 3.4 mm (0.098″ x 0.134″) Flat Coil Heater
Standard 1000 mm (39.4″) Teflon and PTFE Leads Available w/ Ungrounded TC
Heated Length (in)
Total Length (in)
Watts
Volts

10.5
12.5
16
19
22
26
30
36
38
42
45
75.28
79
86.6

14.5
16.5
20
23
26
30
34
40
42
46
49
78.84
82.56
90.16

215
250
325
390
470
520
610
630
700
800
850
1050
1150
1300

240
240
240
240
240
240
240
240
240
240
240
240
240
240

Specifications

Micro Mini
Mini Flat
Mini Round
Square
Flat
Round
Maxi
Profiles

0.039″ x 0.067″
1.0 mm x 1.7 mm

0.051″ x 0.090″
1.3 mm x 2.3 mm

∅ 0.055″ or ∅ 0.070″
∅ 1.4 mm or ∅ 1.8 mm

0.118″ or 0.128″ 
3.0 mm or 3.25 mm

0.071″ x 0.126″
0.089″ x 0.165″
0.098″ x 0.134″
1.8 mm x 3.2 mm
2.2 mm x 4.2 mm
2.5 mm x 3.4 mm

∅ 0.118″
∅ 0.125″
∅ 0.126″
∅ 0.157″
∅ 3.0 mm
∅ 3.18 mm
∅ 3.2 mm
∅ 4.0 mm

0.181″ x 0.338″
4.6 mm x 8.6 mm

Minimum Inside Diameter

0.236″
6.00 mm

0.236″
6.00 mm

0.236″
6.00 mm

0.472″
12.00 mm

0.472″
12.00 mm

0.472″
12.00 mm

0.79″
20.0 mm

Voltage

120 V / 240 V

120 V / 240 V

120 V / 240 V

120 V / 240 V

120 V / 240 V

120 V / 240 V

120 V / 240 V / 480 V

Minimum Bending Radius

0.118″
3.0 mm

0.118″
3.0 mm

0.118″
3.0 mm

0.236″
6.0 mm

0.236″
6.0 mm

0.236″
6.0 mm

0.393″
10.0 mm

Straight Heated Length

112.2″
2800 mm

112.2″
2800 mm

112.2″
2800 mm

86.6″
2800 mm

86.6″
2800 mm

86.6″
2800 mm

86.6″
2500 mm

Thermocouple Availability (Type J / Type K)

External

External

External

Internal or External

Internal or External

Internal or External

Internal or External

Material Options

SS321 or Nickel

SS321 or Nickel

SS321 or Nickel

SS321

SS321

SS321

SS321

Profile
0.039″ x 0.067″
1.0 mm x 1.7 mm
Minimum Inside Diameter
0.236″
6.00 mm
Voltage
120 V / 240 V
Minimum Bending Radius
0.118″
3.0 mm
Straight Heated Length
112.2″
2800 mm
Thermocouple Availability (Type J / Type K)
External
Material Options
SS321 or Nickel

Profile
0.051″ x 0.090″
1.3 mm x 2.3 mm
Minimum Inside Diameter
0.236″
6.00 mm
Voltage
120 V / 240 V
Minimum Bending Radius
0.118″
3.0 mm
Straight Heated Length
112.2″
2800 mm
Thermocouple Availability (Type J / Type K)
External
Material Options
SS321 or Nickel

Profile
∅ 0.055″ or ∅ 0.070″
∅ 1.4 mm or ∅ 1.8 mm
Minimum Inside Diameter
0.236″
6.00 mm
Voltage
120 V / 240 V
Minimum Bending Radius
0.118″
3.0 mm
Straight Heated Length
112.2″
2800 mm
Thermocouple Availability (Type J / Type K)
External
Material Options
SS321 or Nickel

Profile
0.118″ or 0.128″ 
3.0 mm or 3.25 mm
Minimum Inside Diameter
0.472″
12.00 mm
Voltage
120 V / 240 V
Minimum Bending Radius
0.236″
6.0 mm
Straight Heated Length
86.6″
2800 mm
Thermocouple Availability (Type J / Type K)
Internal or External
Material Options
SS321

Profile
0.071″ x 0.126″
0.089″ x 0.165″
0.098″ x 0.134″
1.8 mm x 3.2 mm
2.2 mm x 4.2 mm
2.5 mm x 3.4 mm
Minimum Inside Diameter
0.472″
12.00 mm
Voltage
120 V / 240 V
Minimum Bending Radius
0.236″
6.0 mm
Straight Heated Length
86.6″
2800 mm
Thermocouple Availability (Type J / Type K)
Internal or External
Material Options
SS321

Profile
∅ 0.118″
∅ 0.125″
∅ 0.157″
∅ 1.8 mm
∅ 2.2 mm
∅ 2.5 mm
Minimum Inside Diameter
0.472″
12.00 mm
Voltage
120 V / 240 V
Minimum Bending Radius
0.236″
6.0 mm
Straight Heated Length
86.6″
2800 mm
Thermocouple Availability (Type J / Type K)
Internal or External
Material Options
SS321

Profile
0.181″ x 0.338″
4.6 mm x 8.6 mm
Minimum Inside Diameter
0.79″
20.0 mm
Voltage
120 V / 240 V / 480 V
Minimum Bending Radius
0.393″
10.0 mm
Straight Heated Length
86.6″
2500 mm
Thermocouple Availability (Type J / Type K)
Internal or External
Material Options
SS321

Lead Protection

Lead Protection - Fiberglass Sleeving
Fiberglass Sleeving
Lead Protection - Braided Metal Sleeve
Braided Metal Sleeving
Lead Protection - Flexible Armor Cable
Flexible Armor Cable

Exit Options

Nexthermal Coil Heaters Exit Option 1
Exit 1
Nexthermal Coil Heaters Exit Option 2
Exit 2
Nexthermal Coil Heaters Exit Option 3
Exit 3
Nexthermal Coil Heaters Exit Option 4
Exit 4
Nexthermal Coil Heaters Exit Option 5
Exit 5
Nexthermal Coil Heaters Exit Option 6
Exit 6
Nexthermal Coil Heaters Exit Option 7
Exit 7
Nexthermal Coil Heaters Exit Option 8
Exit 8
Nexthermal Coil Heaters Exit Option 9
Exit 9

Constrictor

Constrictor Group
Constrictor Attachment
Nexthermal Coil Heaters - Constrictor
Precise. Durable. Versatile. Nexthermal Coil Heaters deliver the performance you need for plastic injection molding, mass spectrometry, top seal packaging, food production and your next innovation.

Coil Heater Assemblies

Coil Heater Assemblies - Hotlock Square
Hotlock
Coil Heater Assemblies - Axial Clamp Square
Axial Clamp
Coil Heater Assemblies - Pressed in Brass Square
Pressed-in Brass

Looking to purchase coil heaters or have questions?

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