Elmec Cartridge heaters are available in low, medium and high watt densities with internally externally connected leads. We also manufacture Split type  cartridge heaters for high temperature applications. We built every technically possible heaters as per your requirement.
 
   LOW DENSITY CARTRIDGE HEATERS
Elmec Low Density Catridge Heaters are made of helically wound nickel chrome resistance wire evenly stretched and placed in ceramic insulators. The elment assembly is inserted into Brass/SS 304 tube. High grade MgO powder is filled in the remaining space inside the ceramic insulators to increase thermal conductivity, dielectric strength and heater life.
 
     Features
    
      Low watt density heaters are available in brass or SS 304 sheath.
      Medium & High watt density heaters are available in SS 304 sheath.
      Braided Wire, straight or right angle exit.
      Uniform surface temperatures.
      Flange type optional Braided wire.
      Max temp for SS tube 400oC, for Brass tube 200oC.
 
     
    Applications 
   
      Processing machinery.
      Injection and Blow Moulding.
      Hot runner bushings. 
      Packaging machinery.
      For fastening of turbine bolts .
      Extruders. 
      Hot plates, moulds & dies .
      Food processing machinery
      Medical Equipments
      Shoe Machinery
 
    Mounting Bore
 
         
    The inner diameter of the hole can be between 0.15mm and 0.30mm larger than the cartridge diameter. The lesser the clearance between the  heater and   the bore diameter, the longer will be its life.
 
 
     Size
 
      Diameter -  Min 8mm to Max 45mm
      Length  - Available in any desired length
      Max watt density 3.5 watt/sq cm.
      For higher wattage and high temperature we recommend high watt density cartridge heaters.
   
  
     Terminals
 
      Available in Teflon wire, fiberglass wire and nickel chromium wires. Insulated with ceramic beads or fiber glass sleeves.
      From Dia 22mm onwards, screw connections are available
      Send drawing or samples for any specific configuration
      Fibre glass or tefflonwire crimped or welded to terminals
.
    When Ordering please Specify :
 
      Type of heater 
       Wattage and Voltage
       Dia & length of the heater
       Drawing for special type configuration 
 
     We can manufacture and supply any intermediate diameter and length, Send drawing or sample for special size.
 
 
   HIGH DENSITY CARTRIDGE HEATERS

 Elmec High Watt Density Cartridge Heaters are manufactured with most advanced technology and quality raw materials, enables usage with high watts in small spaces and advanced manufacturing process ensures our heaters are vibration proof and thus ensures excellent reliability in heavy duty working conditions (Like Plastic Processing, Printing, Packaging and automobile industries where the heaters are subjected to heavy vibrations). The high performance is achieved by correct installation of the cartridge heaters. The perfect fitness of the heater in the hole facilitates good heat exchange between the surfaces of heater and mass to be heated thus increases the heater life and reduces energy loss.
   Applications
 
      Plastic processing machinery
      Hot runner mould
      Packaging machinery 
     Dies & moulds
      Shoe machinery
     Labeling machineries and a lot of other applications.
     Food processing machinery
     Hot Stamping
     Heating gases and liquids.
 
    Features
    
    
 Sheathing material : SS 304 and SS 316
  
 Available with inbuilt Thermocouple 'J' or 'K'
  
 Maximum sheath temperature 800oC
  
 Rugged & durable construction
       Highly compacted construction improves heater life and reduces the effect of vibration and shock.
    
Excellent heat transfer.
   
 
   Mounting bore clearance:
     The gap between the heater O.D and the bore I.D should be very close.
 
    To determine Fit :
   Fit = Largest hole I.D - Min heater O.D
    Ex: Heater O.D = 12.5 mm (± 0.06mm std. tolerance)
    Hole I.D = 12.6 mm (± 0.02mm hole tolerance)
    Min heater O.D = 12.44 mm
    Largest hole I.D = 12.62 mm
    Fit = 12.62 - 12.44 = 0.18 mm (max permissible clearance)
 
Refer Operating temperature Vs Watt density graph to find max permissible clearance.
 
Dia
mm
6.5
8
10
12.5
16
19
25
inch
1/4
5/16
3/8
1/2
5/8
3/4
1
     
 
 Length
Min mm
35
35
40
40
50
60
75
Max mm
250
250
500
500
1500
1500
1500
 
   Terminals
 
     Fibre glass or Teflon wire crimped or welded to terminals
      Fibre glass wire with SS metal braiding
      Wires protected with SS or GI flexible conduits
      All wires are available in straight or right angle exit
      Drawing or sample required for special type terminals
 
   SPLIT TYPE CARTRIDGE HEATERS
Elmec Split Type Cartridge Heaters are developed for high temperature applicationa. Helically wound resistance coli is placed inside the tube filled with MgO powder and compacted for faster and efficient heat transfer.
 
   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
 
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
 
     We can manufacture and supply any intermediate diameter and length, Send drawing or sample for special size.
 
 
   WATT DENSITY vs FIT SIZE FOR CARTRIDGE HEATERS
 
Operating temperature of heater and fit size are major factors in determining the life expectancy of cartridge heaters. Select closest practical fit size for installing cartridge heaters for heating metal parts referring
 
Fig - 1
Fig - 2
 
TYPES OF TERMINALS FOR CARTRIDGE HEATERS
 
 
 
 
 
   CERAMIC CARTRIDGE HEATERS
 

Elmec Ceramic Cartridge Heating are made of helically would resistance coil stretched and strung through series of open type ceramic insulators. The elements is centrally supported by SS 304 rod. For high temperature applications SS 316 (or) SS 310 rod are used for center support.
   

Features:

  • Nickel Chrome / kanthal resistance wire
  • Available in Dia 26 mm to and Length upto 3000mm
 
Surface watt density:
 
  • For oils - 1.4 to 4 watts / cm2
  • For wter - 1.4 to 8 watts/cm2
  • For Metals - 2 to 5 watts/cm2
  • For air 1.6 to 3.2 watts/cm2
 
 Applications:
 
  • Heading Liquids & gases
  • Dryers
  • Ovens
  • Printing Machinery
  • Packing Machinery
 
When ordering please specify:
 
  • Dia & length of the heater
  • Wattage and Voltage
  • Type of terminal
  • Cold zone length & hot zone length