...
Home Miniature cartridge heaters

Miniature Cartridge Heaters

High-Performance Heating for Compact Spaces

Engineered for exceptional performance and reliability, our miniature cartridge heaters provide concentrated heat in a compact, robust design. Ideal for applications in 3D printing, medical devices, packaging, and aerospace.

 

Product Details

Sheath MaterialStainless Steel 304, 316, Incoloy® 800
Max Temperature760°C (1400°F)
Diameter Tolerance+0.00 mm / -0.05 mm
Length Tolerance±1.5% or 1.5 mm, whichever is greater
Wattage Tolerance+5%, -10%
Lead WiresHigh-temperature fiberglass insulated nickel wire

Specifications are typical. Final values depend on configuration and tolerances requested.

Our Miniature Cartridge Heaters are designed for applications requiring high watt densities in confined spaces. Constructed with a high-purity magnesium oxide (MgO) core and a durable stainless steel sheath, they offer superior heat transfer, high operating temperatures, and a long service life. The swaged construction results in a dense, compacted unit that is resistant to shock and vibration.

Key features include precision-wound nickel-chromium resistance wire for even heat distribution and a variety of lead wire terminations to suit any application. Each heater undergoes rigorous testing to ensure quality and performance standards are met.

  • 3D Printer Hotends
  • Medical and Analytical Devices
  • Semiconductor Manufacturing
  • Aerospace and Defense Systems
  • Packaging and Sealing Bars
  • Plastics Injection Molding
  • Hot Glue Guns
Straight Leads
Most common. Cost‑effective.
Right‑Angle Leads
Tight spaces. Better strain relief.
Stainless Braid
Abrasion protection.
Stainless Overbraid + Heat Shrink
Moisture resistance.
Swaged End Disk
High watt density. Long life.
Grounded/Un‑grounded TC
Fast response or noise‑safe.

Get Pricing

Send your drawing or pick a size. We reply fast.

FAQ

What is a micro cartridge heater?
A micro cartridge heater is a high-performance heating element designed to provide significant thermal energy in very small or confined spaces. It consists of a nickel-chromium resistance wire insulated with magnesium oxide (MgO) and protected by a durable metal sheath. Their compact size makes them ideal for applications where standard heaters won't fit.
What are the main differences between a "miniature" and a "micro" cartridge heater?
While the terms are often used interchangeably, "micro" typically implies even smaller diameters than "miniature" heaters, often falling below 3mm (1/8"). The core technology and construction are the same, but micro heaters are engineered for applications with the most extreme space constraints.
What are the most common applications for these heaters?

Based on their design for precision heating in small areas, common applications include:

  • Medical Devices: Surgical tools, diagnostic equipment, and fluid warming.

  • Aerospace: Instrumentation, de-icing, and component testing.

  • 3D Printing: Heating the nozzle or "hotend" of the printer.

  • Semiconductor Manufacturing: Wafer processing and gas heating.

  • Packaging: Sealing bars and hot melt adhesive applicators.

What is the maximum operating temperature?

Our micro cartridge heaters can safely operate at temperatures up to 760°C (1400°F). The maximum temperature can vary depending on the sheath material (Incoloy® offers higher temperature performance than stainless steel) and the specifics of the application.

How do I choose the right voltage and wattage?
  • Voltage is typically determined by the power supply of your equipment (e.g., 12V/24V for 3D printers, 120V/240V for industrial machinery).

  • Wattage determines the heat output. You need to calculate the thermal energy required for your process. A higher wattage provides more heat and faster heat-up times. It's crucial not to overpower the heater for its size, as this can lead to premature failure. If you're unsure, our engineering team can help you with the calculations.

Can I get a custom-designed micro cartridge heater?

Yes. We can customize nearly every aspect of the heater to fit your needs, including:

  • Diameter and Length

  • Voltage and Wattage

  • Lead Wire Length and Type

  • Built-in Thermocouples

  • Special Terminations or Seals

Please use the "Request a Quote" button to submit your custom specifications.

Elekheat-Certification

More Related Products

We'd love to hear from you

Contact Us

Thank you for your interest in our cartridge heaters!
Whether you’d like to learn more about product specifications, request a custom solution, or request a quote, we’re happy to assist you.

Reach us through

Send us a Message

Get In Touch Now!

“Within 5 Minutes, Get a Response from Our Customer Service!”

Get In Touch Now!

“Within 5 Minutes, Get a Response from Our Customer Service!”