Split Type Cartridge Heaters
Split Type Cartridge Heaters

Split Type Cartridge Heaters

Elmec Split Type Cartridge Heaters are developed for high temperature applications. Helically wound resistance coli are placed inside the tube filled with MgO powder and compacted for faster and efficient heat transfer.

Elmec Split Type Cartridge Heaters are custom made and are used in various applications including heating Dies, Mould, Compression Moulds, Leather press, Printing and packaging industries, Grid casting Mould in battery industries, Aluminium Extrusion. Sand Core making dies in casting industries.

We use high quality MgO powder, Nichrome resistance wires. Outer sheath is available in SS 321,316. These heaters come with screw terminals and also with terminal leads are of FG insulated with standard length of 300mm. Please specify while sending enquiry if you need longer terminal leads. We also supply different types of terminal exit.

Elmec Split type cartridge heaters are used by leading OEMs and Plastic, Rubber, Packaging, Printing. Leather, extrusion and casing industries. We are supplying to Indian and overseas industries / markets.

Elmec developed Split type cartridge heaters for applications as high as 600 deg cen temperature. These are used in Aluminum Extruders.

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Do's and Don’ts:
  • Please take care while fixing heaters and selecting watts check Volts rating of heaters before connection. Heater rated for particular volts should never be connected to higher volts rating.
  • These heaters are rigid and heat transfer is by conduction from inside surface so perfect fixing and clamping is important.
  • No foreign materials such as polymer, oil, water etc, should fall over the heaters. They should be well covered.
  • Choose appropriate watts as per calculation. Under rated watts will result in heater failure.
  • Never pull the heaters with terminal leads. Never use terminal leads for holding heaters.
  • All heaters have a cold length of about 15mm to 25mm at terminal side. Hot length of heaters must be inside the hole where the heater is fitted.
Features
  • Excellent heat transfer.
  • More clearance can be provided for inserting split type cartridge. Heaters compared to standard conventional cartridge heaters.
  • Can be inserted and removed easily.
  • Longer life.
  • Uniform heat transfer.
  • Available in SS304 SS316 sheaths.
  • Hot zone up to the tip of the element.
Applications
  • Plastic Processing & Packaging Machinery
  • Injection & Blow Moulding
  • Extruders
  • Foundaries
  • For fastening of Turbine Bolts
  • Soldering pots
  • When ordering please specify
  • Dia & length of the heater
  • Wattage and voltage
  • Type of terminal
  • Drawing for special type configuration
When Ordering Please Specify
  • Dia & length of the heater
  • Wattage and voltage
  • Type of terminal
  • Drawing for special type configuration
Available Dia: Mm 6.5 8 10 12.5 14 16 19
Length(mm) Min 40 40 40 50 75 75 100
Max 500 600 900 1500 1500 1500 1500 1500
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Frequently Asked Questions

Split type cartridge heaters are specially designed heating elements that can expand slightly when energized, ensuring tight contact with the bore for efficient heat transfer. It eliminates heat loss caused by poor fit or bore tolerances.

Split type cartridge heaters are commonly used in heating dies, molds, compression molds, leather presses, printing and packaging machines, grid casting molds for battery industries, aluminum extrusion, and sand core making dies in casting industries. They are widely adopted by OEMs in the plastics, rubber, packaging, and metal processing sectors.

Split type heaters offer better surface contact, higher thermal efficiency, and reduce the chances of heater burnout due to air gaps. They are ideal for applications where maintaining consistent contact within the bore is critical.

The split sheath expands slightly when energized, pressing against the bore wall and maximizing contact. This ensures faster heat transfer, even heating, and prevents hot spots or energy wastage.
Use a split type cartridge heater when there's concern about bore fit issues, uneven heat transfer, or applications requiring frequent temperature cycling and reliable heat consistency.
Proper installation involves ensuring a close fit between the heater and the bore, perfect fixing and clamping, and making sure the hot length is fully inside the hole. It’s important not to pull or hold the heater by the terminal leads and to keep the heater well covered to prevent contamination by foreign materials.