Low Density Cartridge Heaters
This standard cartridge heater is a proven low cost solution for most heating applications its usage is however limited by the maximum surface loading upto 5 w/cm2.
Medium Density Cartridge Heaters
Medium Density Cartridge heater is a proven performer like the High Density Cartridge Heater (HDC). That's because the same quality materials go into its constructions; MgO insulations, nickel-chromium resistance wire, silicone-fibreglass insulated lead wires. The only difference is that the Medium Density Cartridge is packaged in a more economical design. Instead of having the high watt density capabilities; it's made of medium watt density application. These heating elements can be supplied with all the different connection leads. Supplied with surface load up to 15w/cm2.
Performance Capabilities
Part temperatures to 6000 C (1100 F)
Maximum watt density to 15 w/cm2)
Maximum voltage to 480V(ac)
Features and Benefits
Magnesium oxide insulation, compacted to the proper density, results in high dielectric strength and contributes to faster heat-up.
Nickel-chromium resistance wire, precisely wound through the heated length, assures even, efficient distribution of heating to the sheath.
Metallurgically-bonded conductor pins, crimp connected to the resistance wires, ensure trouble-free electrical continuity. This process provides lead flexibility just 8 mm (5/16 inch) form the end of the heater.
Flexible standard wires, with silicone-fiberglass sleeves, insulate the wires to temperatures of 2500 C (480 F) Optional lead end with silicone rubber seal protects the leads against moisture and other contaminates.
Technical Characteristics
|
LDC HEATERS
|
MDC HEATERS
|
|
Flexible Nickel Lead.
|
Flexible Nickel Lead.
|
|
Ceramic Insulating Cap.
|
Moisture proof high temperature seal.
|
|
Ceramic Insulative Core with power filled magnesium oxide.
|
Selected Magnesium Oxide with granular structure.s
|
|
Ni-Cr resistance (80 / 20z).
|
Ni-Cr resistance (80/20)
|
|
Outer Sheath.
|
Outer Sheath (SS 304 or 321). .
|
|
End Disk.
|
Welded end disk
|
Typical Applications
Heating Of Manifolds
Packaging Machines
Heating Of Dies
Injection Molding Machine
Heating Of Platens
Extrusion Machines.
Heating Of Hot Stamping
Standard Specifications and Tolerances of Low & Medium Density Cartridge Heater.
|
Feature
|
Low Density
|
Medium Density
|
|
Max. Surface Load
|
: 5 W/cm2
|
: 15 w/cm2
|
|
Wattage Tolerance
|
: +/- 10%
|
: +/- 10%
|
|
Std. Dia Range
|
:8 mm to 50 mm
|
: 8 mm to 25 mm
|
|
Diameter Tolerance
|
:+/- 0.1 mm
|
: +/- .05 mm
|
|
Std. Length
|
: Min 40 mm
|
: Min. 50 mm
|
|
Length Tolerance
|
: +/- 2 mm
|
: +/- 2 mm
|
|
Max. Sheath Temperature
|
: 4000 C
|
: 6000 C
|
|
