Low & Medium Density Cartridge Heaters

These Low & Medium Density Cartridge Heater is developed for heating applications not requiring high watt densities and sheath temperatures not exceeding 300°C. These Cartridge Heating Elements are designed in maximum watt densities of 30 to 45 watts per square inch depending on applications. Such a Cartridge Heating Elements of various sheath diameters can be used in any assembly, equipment or machine.

The Low & Medium Density Cartridge Heater can be absolutely customized to suit customer’s needs. Such Cartridge Heating Elements can be an economical option for customers not requiring high process temperatures. Cartridge Heating Elements are designed & calibrated perfectly to ensure that optimum conductivity between the resistance coil and the Cartridge Heater is achieved.

Low & Medium Density Cartridge Heater

Construction

The Low & Medium Density Cartridge Heater design consists of a helically wound resistance coil made from nickel-chrome wire, evenly stretched and strung through holes in a round ceramic insulator. The element assembly is inserted into a Chrome Nickel Steel. This alloy provides the best combination of physical strength and resistance to heat oxidation up to 450°C.

Specially selected grain size and high purity magnesium oxide is used to fill all remaining space inside the ceramic insulator to increase thermal conductivity, dielectric strength, and provide longer operating life of the Cartridge Heater.

Applications

  • DIE PLATEN HEATING
  • DIE CASTING INDUSTRY
  • EXTRUSION LINE
  • HOT MELT ADHESIVES
  • PACKAGING INDUSTRY
  • PAPER INDUSTRY - EMBOSSING ROLLERS
  • PREFORM MOLDS
  • RUBBER MOLDING INDUSTRY
  • SEAL BARS
  • SEMI CONDUCTOR INDUSTRY
  • TEXTILE INDUSTRY - HEATING OF CUTTING KNIVES

Standard Diameters (MM)

10.00mm 12.50mm 16.00mm 20.00mm
Diameter Length (MM) Recommended Watts (W)
10.00 mm 50 50
75
100
100
120
125 150
150 180
175 200
200 250
225 275
250 300
275 330
300 360
325 400
350 420
375 450
400 480
425 500
450 550
475 570
500 600

Standard Diameters (Inch)

3/8 Inch 1/2 Inch 5/8 Inch 3/4 Inch
Diameter Length (inch) Recommended Watts (W)
3/8" 2 50
3
100
4
120
5 150
6 180
7 200
8 250
9 275
10 300
11 330
12 360
13 400
14 420
15 450
16 480
17 500
18 550
19 570
20 600

Specifications and Tolerances

FeatureLow Density Cartridge HeaterMedium Density Cartridge Heater
Max. Surface Load4 w/cm²12 w/cm²
Wattage Tolerance
                   
±10%±10%
Insulation Resistance
                   
≥ 5 MΩ at 500V (DC)≥ 5 MΩ at 500V (DC)
Standard Dia Range
                   
8mm to 40mm8mm to 20mm
Diameter Tolerance- 0.1mm- 0.1mm
Standard LengthMinimum 50mmMinimum 50mm
Length Tolerance± 1.5%, min ± 2mm± 1.5%, min ± 2mm
Max. Sheath Temperature400° C650° C
MicroCoil Heaters UK Ltd.
Company No. 12367644
Registered Address:
2nd Floor, College House,
17 King Edwards Road,
Ruislip, London,
HA4 7AE
Telephone No: 01452 345141
Emails: technical@microcoilheaters.co.uk, sales@microcoilheaters.co.uk


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