Hot Rod Cartridge Heaters

Engineered through refinements in the swaging process, specially designed cores, high-purity magnesium oxide fill, nickel-chromium resistance wire, and stainless steel tubing, HotRods routinely outperform standard cartridge heaters in demanding industrial applications. Available in a wide variety of diameters and configurations.

High Temperature Lead Wires Rated Up to 550°C

High Impact Ceramic Cap for High Vibration Protection

Evenly Wound Nickel-Chromium Resistance Wire

Compacted High-Purity MgO Insulation

Stainless Steel / Inconel Sheath for Oxidation Resistance

TIG Welded End Disc to Prevent Moisture Absorption

Hot Rod Cartridge Heaters

Engineered through refined swaging processes, specially designed cores, high-purity magnesium oxide fill, and nickel-chromium resistance wire. Hot Rods routinely outperform standard cartridge heaters in demanding high-temperature and high-vibration applications.

Key Construction & Features

High-Temperature Leads: Flexible lead wires rated for operating temperatures up to 550°C.
High-Impact Ceramic Cap: Retards contamination, withstands high vibration, and prevents wire fraying.
Nickel-Chromium Resistance Wire: Evenly wound for maximum heater life and uniform heat distribution.
Compacted MgO Insulation: High-purity magnesium oxide fill selected for maximum dielectric strength and thermal conductivity.
Corrosion Resistant Sheath: Heavy-duty Stainless Steel or Inconel sheath for oxidation protection.
TIG-Welded End Disc: Provides a secure seal to prevent moisture absorption and internal contamination.

Standard Specifications

Nominal Diameter	Min Diameter (mm)	Max Diameter (mm)	Max Lead Gauge	Max Amps	Max Volts
1/8"	2.97	3.17	24	5	300
1/4" / 6mm	6.19	6.32	22	9	300
5/16" / 8mm	7.77	7.97	22	9	300
3/8" / 10mm	9.37	9.98	18	15	300
1/2" / 12.5mm	12.34	12.67	18	15	480
5/8" / 16mm	15.72	15.97	14	26	480
3/4" / 19mm	18.84	19.02	14	26	480
1" / 25.4mm	25.24	25.37	14	26	480

Lead Wire Characteristics

Wire Type	Standard Temp	Max Temp	Comments / Applications
Ultralead	250°C	450°C	Excellent, durable wire ideal for high-temperature applications.
Teflon	250°C	450°C	Best for tight spaces where small diameter wire is required.
Silicon Rubber	250°C	450°C	Provides excellent moisture resistance.
Braided Silicon Rubber	250°C	450°C	Inexpensive wire suited for non-abrasive environments.
MGT	250°C	450°C	High-performance temperature resistant lead wire.
SJO Cord	94°C	90°C	Heavy-duty rubber jacket, oil and moisture resistant (for 3/8" dia & larger).