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By 
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.



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, 25mmWatts 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)

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.
    
| 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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