Electric Cartridge Heaters for Industrial Heating Applications

MN Machinery Auto Trading supplies Electric Cartridge Heaters, designed for precise heating applications by insertion into metal blocks via drilled holes. These heaters are constructed using MgO powder or MgO tube, ceramic caps, NiCr 2080 resistance wire, high-temperature leads, and seamless stainless steel sheaths (304, 321, 316, 800, 840). Cartridge heaters are typically manufactured in high-density and low-density forms, depending on the industrial application.

High-density cartridge heaters are used for heating plastic injection molds, dies, and platens, while low-density heaters are suitable for packaging machinery, heat sealing, labeling machines, and hot stamping equipment. These heaters provide consistent and reliable heating performance, with maximum operating temperatures up to 870°C (1600°F) and a range of voltage options including 12V, 24V, 36V, 110V, 220V, 240V, and 380V.

Key Features

• Sheath Material: Stainless steel 304, 321, 316, 800, 840

• Heating Core: NiCr 2080 resistance wire with MgO insulation

• Construction: Ceramic cap and high-temperature leads

• Density Options: High-density for molds/dies; low-density for packaging/heat sealing applications

• Voltage Options: 12V, 24V, 36V, 110V, 220V, 240V, 380V

• Maximum Operating Temperature: 870°C (1600°F)

• Wattage Tolerance: +5% / -10%

• Resistance Tolerance: +10% / -5%

• Length Tolerance: ±2% or 3.2mm

• Diameter Tolerance: +0.05mm / -0.1mm

• Unheated Area: 5–10mm standard

• Thermocouple Options: Type J or K, located at disc end, sheath, or center

• Insulation Resistance (Cold): ≥500 MΩ

• Maximum Leakage Current (Cold): ≤0.5 mA

• Diameter Range: 3.0mm to 30mm

Applications

• Heating plastic injection molds, dies, and platens

• Packaging machinery

• Heat sealing, labeling machines, and hot stamping applications

• Industrial metal block heating processes