Information of High Watt Density Cartridge Heaters and their Technical Specification

Elmec High Watt DensityCartridge 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.

High Watt Density CartridgeHeaters With Built In Thermocouple

Cartridge heaters can be produced with built in ‘J’ or ‘K’ type thermocouples to provide heat control to increase heater life and to save energy

Code                      Positive Colour                Negative Colour               Temperature Range

J                              Iron (+) White                  Constantan (-) Red         -20°C to + 750°C

K                             Chromel (+)                      Yellow Alumel (-) Red -20°C to + 1260°C

TOLERANCE
Diameter	- 0.02 to - 0.08 mm
Length	Up to 100mm + 2mm
	Over 100mm + 1% to 3%
Wattage	- 10% to + 5% (+ 5% available upon request)
Resistance	+ 10% to - 5% (+ 5% available upon request)      Maximum working temperature allowed on sheath 750°C

MAXIMUM RECOMMENDED SURFACE LOAD
High Watt Density	Max.150 W/Sq.inch Max. 25W/Sq.cm
Medium Watt Density	Max. 65 W/Sq.inch Max. 10W/Sq.cm
Low Watt Density	Max. 25W/Sq.inch Max. 4W/Sq.cm

APPLICATIONS  

·         Plastic Processing Machineries

·         Shoe Machinery

·         Injection Molding Machine

·         Packaging Equipment

·         Blow Molding Machine Moulds & Dies

·         Plastic Extruder & Extrusion Dies

·         Rubber Industry

·         Hot Runner Moulds

·         Chemical Industry

·         Hot Stamping

·         Heating Liquids

·         Food Processing

·         Power Plants

·         Medical Equipment

·         Automobile Industries and many more applications.

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 possible fit size for installing cartridge heaters for heating metal parts

ADVANTAGES

• High watt density cartridge heaters make it possible to have high watts in less space without sacrificing lifetime.
• Proof against shock and vibration.
• Excellent heat transfer.
• Maximum operating temperature 1400°F (750°C) on heater surface.
• Our heaters are cylindrically ground to have better surface contact and minimum hole tolerance.
• Leak proof Tig welded end cap prevents heater contamination due to the entry of any foreign materials.

INSTALLATION RECOMMENDATION

• The tightest possible fit is recommended
• Prevent damages to hole surface while removing the heater.
• Excellent heat transfer.
• For easy fitting and removing the heater and to improve heater conductivity, a very thin layer of assembly get should be used on heater surface and should not be in contact with cables to avoid short circuit.
• Protect cables from physical damage, excess temperature and excess flexing etc.
• Use suitable temperature controllers like PID controller with SCR, Thyristor, mercury relay or solid-state power controls to increase the heater life.
• The sensor should be placed as close as possible to the heater (15mm).
• Use largest possible number of heaters to reduce watt densities.

Manufacturer of heater in India, to make awareness to express the needs and the usage of heaters globally.....

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