The
HOTWATT Mica Heaters are specifically designed for your
Injection and Extrusion machines. These heaters are custom
made with Nickle -Chromium Resistance wire wound on Premium
quality of Mica. Standard sheath material is S.S.304; Other
sheath material like Zinc Platted M.S. or Brass is also
available.
Band
heaters may be supplied in one piece or two piece construction .The specially
designed tightening clamp provides full and even closure for maximum heat transfer.
A variety of Terminal type and location is possible to meet any installation need.
MATERIALS OF CONSTRUCTION:-
*Outer Sheath - Polished S.S.304
*Element - Resistance wire (Ni - 80 %, Cr-20%)
*Termination - Metal Braided
Fibre Glass wires
*Insulation - Flexible Mill Board or Ceramic Fibre covered
with Aluminium foil to avoid black spots on outer sheath.
.
MANUFACTURING:-
Depending upon the Volt and Wattage a suitable size of the resistance wire is
selected as per the recommendation of the resistance wire manufacturer. This wire
is wound on premium mica to form a coil. The coil is placed between the Mica sheets
and is then enclosed in metal enclosure. The element wire is terminated on a brass
strip from where the lead wires are taken out further. These strips are covered
with a ventilated terminal box. The heater is provided with a clamping device,
which has a Cap Screw for easy, and even tightening of the heater on the barrel.
FOR
BEST RESULTS:-
Clamp securely the heater to the object to be heated and
run the heater at operating temperature. Retighten the bolts
to correct the expansion due to heating. This will result
in better heat transfer and longer life of the heater.
TO ORDER SPECIFY
1.Inside diameter and width of the Heater
2.Voltage and Watts
3.Position and dimensions of Cut outs and Thermocouple Holes
4.Terminal Box Position and Length of the Lead wire
Mica
Band Heater, Mica Heaters, Band Heaters
