Heat Source

Bhiwandi, Thane, Maharashtra

HS / FS Ring Elements owing to their convenient shape & sizes, adapt themselves readily to variety of machines and appli-ances for which other type of heaters are not suitable. They are being fitted for heating platens, dies of presses. They are also in use for melting of glue, wax, easily fusible metals like leads, tin, solder, hot plates, valves, flanges, brooders, vulcaniz-ers, popcorn machines, high speed packing machines, diffusion pumps, tank bottoms, kettles, large coffee percolators & wash boilers etc.

Being sheathed on one side only, it has very little residual heat and stands up to 650C temperature for its surface area. Elimination of the sheath on the contact side puts the rock hard refractory in direct contact with the heated surface, thereby providing slightly faster heat-up. Half Sheath elements can be used where the protection provided by the full sheath is unnecessary.

Chrome steel sheath on one side and edges, other flat side is the bare refractory. Coiled electric resistant wire embedded inside. And steel terminal studs with nuts and washers

Fully Sheathed Heaters (both sides metal) provides extra protection from rough handling & usage, especially when there are chances of falling any liquid on it.

To Heat dies & moulds, Smelting of materials, heating of fluids & heat welding etc. HD cartridge heaters are able to with-stand the toughest working conditions such as vibration, moisture, fluids, spills, frequent expansions & where the temp. Is 400 to 750 Deg. C. are required, or temperatures within a limited space.

High-wattage cartridges belong to a new generation of electric heat-ing elements; they make it possible to use high watt loads in small spaces, thus ensuring excellent reliability in heavy-duty work condi-tions. Their special construction technology makes them the most advanced type of heating elements. The entire length of the wire wound around a magnesium oxide core is in a far away position from the axis of the cartridge, very close to the metal sheath, with a very thin and compressed insulating wall in between; this allows excellent heat exchange that allows a much lower temperature of the resis-tance wire than in other heaters in which the wire is in a deeper posi-tion. Besides the use of advanced technology and precise inspection techniques in their manufacturing.

INSTALLATION & PRECAUTIONS

1. The hole where it is going to be isntalled, the cartridge must have a diameter tolerance between 0.02 to 0.06 mm (depends upon watt density, higher watt density must have lower tolerance).
2. The cartridge must not be longer than the hole where it is installed.
3. Connecting leads must not be scratched, flattened, stained, wet, etc.
4. The cartridge heaters cannot work in open air.
5. Controlling systems must be used with the cartridge heaters.
6. Resistance Tolerance: + 10% - 5%
7. Wattage Tolerance: + 5% - 10%
8. Length Tolerance: +/- up to 5mm
9. The sensors for the controller should be placed between the working surface of the part & the heaters. The temperature of the part approximately half inch away from the heaters is used in selecting maximum allowable watt density.
10. Control of power is an important consideration in high watt density appl cations. On/Off control is frequently utilised, but it can cause wide excursions in the temperature of the heaters & working parts. Thyristor power control are valuable in extending the life of the high watt density heaters, since they effectively eliminate On/Off cycling.

Cartridge heaters are recommended wherever the performance of cartridges is not fully needed. In construction, the same materials used in are used, though manufacturing technology is simpler, due to lower watt density, and therefore the whole process is more economical.

Cartridges have one or more U-bent spirals in a cartridge core of compacted magnesium oxide, with the spirals nearer to the axis of the cartridge than in heaters, as heating power is lower and thermal conductivity of com-pacted magnesium oxide is highly sufficient to spread heat, therefore with total reliability and safety even in extreme work conditions. Due to their simple construction, cartridges are perfect for being shaped in various ways for the application needed. They can have cold sections at ends, and/or with differentiated watt densities or indepen-dent circuits for separate sections.

Rectangular section heater, insulated with compacted MgO for quicker & even heating & better life span.

Max. Watt density: 40 W/Sq. inch.Max. surface temp. 650 C

APPLICATION

Dryers, Ovens , External heating for tanks & vessels.

APPLICATION

For Heating Machines, shapes & tools of plastic processing industry. Technical process oriented applications

CONSTRUCTION

Sheathing aluminized steel, rust resistant steel, or stainless steel are used with clamps & screws to affix the heater rigidly on cylinder.Heating elements The element is wound uniformly to eliminate hot spot. For temperature upto 600C, the heater is also available with helix coiled element insulated with grooved refractories.Spirally wound heating coil insulated with Ceramic Insulators & cover with SS sheet, made as per required sizes with termi-nal connection & fixing clamps

CONNECTION

In the standard model the connection boxes extend with tangential cable introduction over the total width of the band heater. Shortened connection box seated on a definite axial position is possible under observation of technical features. Construction of the connection boxes, clamping & shutter fittings, perforation & bores in radial as well as axial position is possible, depending upon requirement.

Heat Resistant, insulated, metal braided cable of any convenient length.

STANDARD SIZES & CAPACITIES

FEATURES

• Surface temperature to 750 C.
• Mid-to-far wavelength infrared heat source provides uniform heat over a large area.
• Primary emission in the 3 - 10 micron range (no visible light), which is the most efficient wavelength for heating of platics, paper, textiles, and drying of most solvents.
• Available with built-in type K thermocouple.
• Available in 122 x 60 mm, 245 x 60 mm, and 122 x 122 mm sizes.
• Available with pink surface that turns to gray when heating providing evidence of correct operation.
• Clean, non-contaminating, heat operation. Glaze-coated ceramic body with no surface flaking or oxidation as on metal sheath elements.
• Provides perfectly repeatable performance.
• Easily arranged in large arrays that may be set up and controlled in zones.
• Operating life over 5, 000 hours minimizes machine downtime.
• Iron alloy element wire provides longer life than nickel-chrome alloy wires.
• Resistant to thermal shock. Heaters are not damaged if hit by water spray

APPLICATION

Cartridge heaters are most frequently used for heating metal parts by insertion into drilled holes. The D heater is designed especially for platen, die or mould commercial heating applications where the holes are poorly drilled or worn through age. Independent expansion of each section of the when energized, creates intimate contact with the wall of the hole.

• Split Sheath design
• Improved conductive heater
• Easily inserted and removed from long holes
• Incolloy Sheath for long life at extreme temperatures
• Compacted to maximum density for excellent element to sheath heat transfer and dielectric strength

HS FS ring elements owing to their convenient shape & sizes, adapt themselves readily to variety of machines and appliances for which other type of heaters are not suitable. They are being fitted for heating platens, dies of presses. They are in use for melting of glue, wax, easily fusible metals like leads, tin, solder, hot plates, popcorn machines, high speed packing machines, difussion pumps, kettles, large coffee percolators & wash boilers etc.

SheathingThis type of heaters have quartz silica tube sheathing, closed from bottom. Rubber cap with terminal wires are mounted on the top. Heater terminals are fixed very firmly with the outer wires. It consist of non-sinkable heating element, as the heater is suitable for vertical installation only. This heater is designed to heat-up the solutions rapidly as the same have more watt density than the rod type heater. This heater is also available with built in thermostat.

The unique twin tube design offers high radiation power and very good mechanical stability allowing emitters of lengths up to 3.5 meters. Emitters are available in Short Wove, Medium Wave, or Long Wave versions. That gives you the possibility to select the optimum wavelength for the material to bo hooted. Dimensions and filaments are matched to requirements.