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HOTCO has been stocking and manufacturing cartridge heaters since the 1940's. Design and manufacturing skills have evolved to make our cartridge heaters some of the most reliable and cost competitive in Australia.

APPLICATIONS TECHNICAL DATA
STOCKED CARTRIDGE SIZES OPTIONS AND EXTRA'S

WATER HEATING - We recommend no more than 10 W/cm² when using cartridge heaters as immersion heaters in water - for chemicals contact HOTCO for further advice. Please make sure you specify immersion applications prior to ordering.

OIL HEATING - To avoid oxidisation a watt density of no more than 2 W/cm² is recommended. These heaters have been commonly used as sump heaters or in applications where area is restricted.

AIR HEATING - Elements of approximately 1 W/cm² are recommended ~ most commonly used as convection or anti-condensation heaters.

DIE HEATING - For applications where a large mass of metal requires thermal input ~ Manifolds, patterns, Hot Runners and Torpedoes. This form of heating is very efficient as the heat transfers from the inner core of the mass. Heaters require reamed holes to fitting tolerances.

PACKAGING - Hot melt glue applications.

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There are 2 main methods used in manufacturing cartridge heaters:

COMPACTED HIGH DENSITY

These consist of resistance wire would around a refactory rod and inserted into stainless steel tubes where the remaining space is filled with magnesium oxide. The tube is then reduced in diameter to compact the contents and then machined to precise tolerances.

  • Sizes Available - 1/4", 3/8", 1/2", 5/8", 3/4", 1" (Stocked) Other sizes including metric sizes are available on request.

    Watts Density - 20 W/cm²

  • NON-COMPACTED LOW DENSITY

    Manufactured by supporting helically coiled resistance wire would on a refactory rod and inserted into a stainless steel tube with the remaining space being filled with magnesium oxide. This assembly is inserted into the exact tolerance-machined tube and sealed.

  • Sizes Available - 3/8", 1/2", 5/8", 3/4", 1", 10mm, 12mm, 14mm, 16mm, 20mm, 25mm

    Watts Density - 6 W/cm²

  • FITTING TOLERANCES - Good contact between the cartridge body and bore is essential, especially so for high powered high-density cartridge heaters. They should always be fitted into accurately reamed parallel-sided holes.

    TEMPERATURE CONTROL - To ensure the element does not overheat, the temperature sensing point should be positioned in the metal tool not more than 2 cartridge heaters away.

  • Element life is reduced by slow 'on / off' cycling of temperature controllers. Slow cycling occurs when the mass to be heated is small and the element is higher rated than it needs to be.. Full PID auto-tuning controllers with solid state output are recommended.
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    CARTRIDGE SIZES IN STOCK

    (Select the diameter required to view the range of sizes)

    HIGH DENSITY IMPERIAL

    LOW DENSITY IMPERIAL

    LOW DENSITY METRIC

    1/4 " Diameter

    3/8" Diameter

    10 mm Diameter

    3/8 " Diameter

    1/2" Diameter

    12 mm Diameter

    1/2 " Diameter

    5/8 " Diameter

    14 mm Diameter

    5/8" Diameter

     

    16 mm Diameter

    1/4" Thermocouple J

       

     

    COMPACTED HIGH DENSITY

    These consist of resistance wire would around a refactory rod and inserted into stainless steel tubes where the remaining space is filled with magnesium oxide. The tube is then reduced in diameter to compact the contents and then machined to precise tolerances.

    These elements generally run at a higher surface temperature than non-compacted cartridge heaters and are of the best quality found anywhere in this country.

    Part No. Compacted High Density 1/4" Dia - 250 mm NiG Leads
    CM21954 1/4"x1.5" 230V 160W 10" NiG leads
    CM23254 1/4"x1.5" 230V 200W 10" NiG leads
    CM21955 1/4"x2" 230V 200W 10" NiG leads
    CM24673 1/4"x2"L 230V 200W 10" NiG leads J Thermocouple built-in
    CM21956 1/4"x2.5" 230V 250W 10" NiG leads
    CM21957 1/4"x3" 230V 300W 10" NiG leads
    CM21958 1/4"x4" 230V 350W 10" NiG leads
    CM24676 1/4"x4"L 230V 350W Tc J 1m NiG Leads

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    Part No. Compacted High Density 1/2" Dia - 250 mm NiG Leads
    CM21973 1/2" x 1.5" 230V 250W 10" NiG leads
    CM21974 1/2" x 2" 230V 300W 10" NiG leads
    CM21975 1/2" x 2.5" 230V 400W 10" NiG leads
    CM21976 1/2" x 3" 230V 500W 10" NiG leads
    CM23082 1/2" x 4" 230V 500W 10" NiG leads
    CM21977 1/2" x 4" 230V 630W 10" NiG leads
    CM23260 1/2"x5" 230V 600W 10" NiG leads
    CM21978 1/2"x5" 230V 750W 10" NiG leads
    CM21979 1/2"x6" 230V 1000W 10" NiG leads
    CM22437 1/2"x6" 230V 600W 10" NiG leads
    CM22741 1/2"x6" 230V 800W 10" NiG leads
    CM23363 1/2"x6.5" 230V 500W 10" NiG leads
    CM22738 1/2"x7" 230V 1000W 10" NiG leads
    CM23257 1/2"x8" 230V 1000W 10" NiG leads
    CM21980 1/2"x8" 230V 1500W 10" NiG leads
    CM22739 1/2"x9" 230V 1000W 10" NiG leads
    CM23258 1/2"x10" 230V 1000W 10" NiG leads
    CM21981 1/2"x12" 230V 1500W 10" NiG leads
    CM21982 1/2"x12" 230V 2000W 10" NiG leads
    CM23261 1/2"x14" 230V 1200W 10" NiG leads

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    Part No. Compacted High Density 3/8" Dia - 250 mm NiG Leads
    CM22737 3/8"x1.5" 230V 100W 10" NiG leads
    CM21962 3/8"x1.5" 230V 200W 10" NiG leads
    CM23079 3/8"x2" 230V 160W 10" NiG leads
    CM21963 3/8"x2" 230V 250W 10" NiG leads
    CM23880 3/8"x2.5" 230V 180W 10" NiG leads
    CM21964 3/8"x2.5" 230V 350W 10" NiG leads
    CM23255 3/8"x3" 230V 250W 10" NiG leads
    CM21965 3/8"x3" 230V 400W 10" NiG leads
    CM23080 3/8"x4" 230V 350W 10" NiG leads
    CM21966 3/8"x4" 230V 500W 10" NiG leads
    CM23256 3/8"x5" 230V 500W 10" NiG leads
    CM21967 3/8"x5" 230V 750W 10" NiG leads
    CM23081 3/8"x6" 230V 500W 10" NiG leads
    CM21968 3/8"x6" 230V 750W 10" NiG leads
    CM21969 3/8"x6.5" 230V 630W 10" NiG leads

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    Part No. Compacted High Density 5/8" Dia - 250 mm NiG Leads
    CM21986 5/8"x1.5" 230V 315W 10" NiG leads
    CM21987 5/8"x2" 230V 400W 10" NiG leads
    CM23262 5/8"x2.5" 230V 250W 10" NiG leads
    CM21988 5/8"x2.5" 230V 400W 10" NiG leads
    CM21989 5/8"x3" 230V 500W 10" NiG leads
    CM21990 5/8"x4" 230V 600W 10" NiG leads
    CM21991 5/8"x5" 230V 750W 10" NiG leads
    CM21992 5/8"x6" 230V 1000W 10" NiG leads
    CM21993 5/8"x7" 230V 1000W 10" NiG leads
    CM21994 5/8"x8" 230V 1250W 10" NiG leads
    CM22740 5/8"x9" 230V 1250W 10" NiG leads
    CM21995 5/8"x10" 230V 2000W 10" NiG leads
    CM21996 5/8"x12" 230V 1800W 10" NiG leads

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    Part No. High Density 1/4" Dia J T/C - 1000 mm NiG Leads
    CM24672 1/4" x 1.5" 230V 175W J Thermocouple Built in, 1m NiG
    CM24673 1/4" x 2" 230V 200W J Thermocouple Built in, 1m NiG
    CM24674 1/4" x 2.5" 230V 250W J Thermocouple Built in, 1m NiG
    CM24675 1/4" x 3"L 230V 300W J Thermocouple Built in, 1m NiG
    CM24676 1/4" x 4" 230V 350W J Thermocouple Built in, 1m NiG

     

    NON-COMPACTED LOW DENSITY

    Manufactured by supporting helically coiled resistance wire wound on a refactory rod and inserted into a stainless steel tube with the remaining space being filled with magnesium oxide. This assembly is inserted into the exact tolerance-machined tube and sealed.

    Part No. Non Compacted Low Density 10mm Dia - 300 mm NiG Leads
    CM16806 10mm x 50L" reamed hole 240V 70W 12" NiG leads
    CM16821 10mm x 60L" reamed hole 240V 90W 12" NiG leads
    CM16822 10mm x 70L" reamed hole 240V 110W 12" NiG leads
    CM16807 10mm x 75L" reamed hole 240V 120W 12" NiG leads
    CM16823 10mm x 80L" reamed hole 240V 130W 12" NiG leads
    CM16824 10mm x 90L" reamed hole 240V 150W 12" NiG leads
    CM16808 10mm x 100L" reamed hole 240V 170W 12" NiG leads
    CM16809 10mm x 125L" reamed hole 240V 220W 12" NiG leads
    CM16810 10mm x 150L" reamed hole 240V 270W 12" NiG leads
    CM16825 10mm x 175L" reamed hole 240V 320W 12" NiG leads
    CM16811 10mm x 200L" reamed hole 240V 360W 12" NiG leads
    CM16826 10mm x 225L" reamed hole 240V 410W 12" NiG leads
    CM16812 10mm x 250L" reamed hole 240V 460W 12" NiG leads
    CM16827 10mm x 275L" reamed hole 240V 510W 12" NiG leads
    CM16828 10mm x 300L" reamed hole 240V 560W 12" NiG leads

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    Part No. Non Compacted Low Density 12mm Dia - 300 mm NiG Leads
    CM17551 12mm x 50L" reamed hole 240V 90W 12" NiG leads
    CM17552 12mm x 60L" reamed hole 240V 110W 12" NiG leads
    CM17553 12mm x 70L" reamed hole 240V 130W 12" NiG leads
    CM17554 12mm x 75L" reamed hole 240V 150W 12" NiG leads
    CM17555 12mm x 80L" reamed hole 240V 160W 12" NiG leads
    CM17556 12mm x 90L" reamed hole 240V 180W 12" NiG leads
    CM17557 12mm x 100L" reamed hole 240V 200W 12" NiG leads
    CM17558 12mm x 125L" reamed hole 240V 260W 12" NiG leads
    CM17559 12mm x 150L" reamed hole 240V 320W 12" NiG leads
    CM17560 12mm x 175L" reamed hole 240V 380W 12" NiG leads
    CM17561 12mm x 200L" reamed hole 240V 440W 12" NiG leads
    CM17562 12mm x 225L" reamed hole 240V 500W 12" NiG leads
    CM17563 12mm x 250L" reamed hole 240V 550W 12" NiG leads
    CM17564 12mm x 275L" reamed hole 240V 610W 12" NiG leads
    CM17565 12mm x 300L" reamed hole 240V 670W 12" NiG leads

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    Part No. Non Compacted Low Density 14mm Dia - 300 mm NiG Leads
    CM16814 14mm x 50L" reamed hole 240V 100W 12" NiG leads
    CM16829 14mm x 60L" reamed hole 240V 130W 12" NiG leads
    CM16830 14mm x 70L" reamed hole 240V 160W 12" NiG leads
    CM16815 14mm x 75L" reamed hole 240V 170W 12" NiG leads
    CM16831 14mm x 80L" reamed hole 240V 180W 12" NiG leads
    CM16832 14mm x 90L" reamed hole 240V 210W 12" NiG leads
    CM16816 14mm x 100L" reamed hole 240V 240W 12" NiG leads
    CM16817 14mm x 125L" reamed hole 240V 310W 12" NiG leads
    CM16818 14mm x 150L" reamed hole 240V 370W 12" NiG leads
    CM16833 14mm x 175L" reamed hole 240V 440W 12" NiG leads
    CM16819 14mm x 200L" reamed hole 240V 510W 12" NiG leads
    CM16834 14mm x 225L" reamed hole 240V 580W 12" NiG leads
    CM16820 14mm x 250L" reamed hole 240V 650W 12" NiG leads
    CM16835 14mm x 275L" reamed hole 240V 720W 12" NiG leads
    CM16836 14mm x 300L" reamed hole 240V 780W 12" NiG leads

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    Part No. Non Compacted Low Density 16mm Dia - 300 mm NiG Leads
    CM17566 16mm x 50L" reamed hole 240V 120W 12" NiG leads
    CM17567 16mm x 60L" reamed hole 240V 150W 12" NiG leads
    CM17568 16mm x 70L" reamed hole 240V 180W 12" NiG leads
    CM17569 16mm x 75L" reamed hole 240V 190W 12" NiG leads
    CM17570 16mm x 80L" reamed hole 240V 210W 12" NiG leads
    CM17571 16mm x 90L" reamed hole 240V 240W 12" NiG leads
    CM17572 16mm x 100L" reamed hole 240V 270W 12" NiG leads
    CM17573 16mm x 125L" reamed hole 240V 350W 12" NiG leads
    CM17574 16mm x 150L" reamed hole 240V 430W 12" NiG leads
    CM17575 16mm x 175L" reamed hole 240V 510W 12" NiG leads
    CM17576 16mm x 200L" reamed hole 240V 580W 12" NiG leads
    CM17577 16mm x 225L" reamed hole 240V 660W 12" NiG leads
    CM17578 16mm x 250L" reamed hole 240V 740W 12" NiG leads
    CM17579 16mm x 275L" reamed hole 240V 820W 12" NiG leads
    CM17580 16mm x 300L" reamed hole 240V 900W 12" NiG leads

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    Part No. Non Compacted Low Density 3/8" Dia - 300 mm NiG Leads
    CM6021 3/8" x 1.5" reamed hole 120V 50W 12" NiG leads
    CM3083 3/8" x 2" reamed hole 240V 70W 12" NiG leads
    CM10487 3/8" x 2.5" reamed hole 240V 90W 12" NiG leads
    CM12982 3/8" x 3" reamed hole 240V 120W 12" NiG leads
    CM6061 3/8" x 3.5" reamed hole 240V 140W 12" NiG leads
    CM14447 3/8" x 4" reamed hole 240V 160W 12" NiG leads
    CM6062 3/8" x 4.5" reamed hole 240V 190W 12" NiG leads
    CM5766 3/8" x 5" reamed hole 240V 210W 12" NiG leads
    CM10940 3/8" x 6" reamed hole 240V 260W 12" NiG leads
    CM6063 3/8" x 6.5" reamed hole 240V 280W 12" NiG leads
    CM10941 3/8" x 7" reamed hole 240V 310W 12" NiG leads
    CM13288 3/8" x 9" reamed hole 240V 400W 12" NiG leads

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    Part No. Non Compacted Low Density 1/2" Dia - 300 mm NiG Leads
    CM6083 1/2"x 1.5" reamed hole 240V 60W 12" NiG leads
    CM13082 1/2"x 2" reamed hole 240V 90W 12" NiG leads
    CM12400 1/2"x 2.5" reamed hole 240V 130W 12" NiG leads
    CM10105 1/2"x 3" reamed hole 240V 160W 12" NiG leads
    CM6066 1/2"x 3.5" reamed hole 240V 190W 12" NiG leads
    CM8608 1/2"x 4" reamed hole 240V 220W 12" NiG leads
    CM6067 1/2"x 4.5" reamed hole 240V 250W 12" NiG leads
    CM6299 1/2"x 5" reamed hole 240V 280W 12" NiG leads
    CM6068 1/2"x 5.5" reamed hole 240V 310W 12" NiG leads
    CM14725 1/2"x 6" reamed hole 240V 350W 12" NiG leads
    CM6069 1/2"x 6.5" reamed hole 240V 380W 12" NiG leads
    CM10981 1/2"x 7" reamed hole 240V 410W 12" NiG leads
    CM14865 1/2"x 8" reamed hole 240V 470W 12" NiG leads
    CM6020 1/2"x 10" reamed hole 240V 600W 12" NiG leads
    CM5350 1/2"x 12" reamed hole 240V 720W 12" NiG leads

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    Part No. Non Compacted Low Density 5/8" Dia - 300 mm NiG Leads
    CM13084 5/8" x 2" reamed hole 240V 120W 12" NiG leads
    CM11424 5/8" x 2.5" reamed hole 240V 160W 12" NiG leads
    CM13850 5/8" x 3" reamed hole 240V 200W 12" NiG leads
    CM9899 5/8" x 3.5" reamed hole 240V 240W 12" NiG leads
    CM10757 5/8" x 4" reamed hole 240V 270W 12" NiG leads
    CM14567 5/8" x 5" reamed hole 240V 350W 12" NiG leads
    CM10942 5/8" x 6" reamed hole 240V 430W 12" NiG leads
    CM10263 5/8" x 7" reamed hole 240V 510W 12" NiG leads
    CM10977 5/8" x 8" reamed hole 240V 590W 12" NiG leads
    CM6298 5/8" x 9" reamed hole 240V 670W 12" NiG leads
    CM6070 5/8" x 1.5" reamed hole 240V 80W 12" NiG leads
    CM10807 5/8" x 10" reamed hole 240V 750W 12" NiG leads
    CM8058 5/8" x 11" reamed hole 240V 820W 12" NiG leads
    CM6023 5/8" x 12" reamed hole 240V 900W 12" NiG leads

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    OPTIONS & EXTRAS

    Guide your mouse pointer over pictures for a desciption of the option.

    BSP Screw In Plug (Brass or Stainless Steel)Stainless Steel Elbow - R/angle Lead EntryRight Angle Cable EntryFlange Mount (Square Flange shown)Copper Elbow - R/angle Lead Entry

    Plug - Brass BSP For screwing into water tanks.
    Plug - S/S BSP For screwing into chemical / abrasive tanks.
    Elbow (Copper) For reinforced cable strength at bend.
    Elbow (Stainless Steel) For extra robust strength and chemical resistance.
    Flanged (Round or Square) For mounting stability and strength.
    Tab For lead and element stability in moving applications.
    Right Angle Cable Entry For applications where leads need to be diverted to side.
    Moisture Proof In wet / moist areas (not waterproofed to immersion).
    Thermocouple Built into body for fast reaction and control performance.
    Lead Options
    • NiG (Nickle, glass insulated - stranded)
    • Steel Braided NiG
    • Steel Conduit

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    ``Quick Links ``

    ` Home` ` HOTCO Locations Directory` `Product Index Page`
    `Band & Nozzle Elements` `Cartridge Elements` `Tubular Formed Elements`
    `Liquid / Immersion Heaters` `Gas, Air & Vapour Heaters` `Process Heating Systems`
    `Flat & Formed Elements` `Flexible Elements` `Accessories`

     

    HOTCO Head Office - PHONE (03) 9585 1944  -  FAX (03) 9585 0268 -  POSTAL PO BOX 611 CHELTENHAM VICTORIA AUSTRALIA