20
FAST HEAT, INC.
CARTRIDGE
HEATERS
APPLICATION FOR SELECTION OF
CARTRIDGE HEATERS IN PLATENS
Whether round or square cartridges are
used, close contact of the heater to the
component being heated is important.
When the application is such that the hole
into which a round heater is to be inserted is
too long for practical drilling and reaming, a
Square Cartridge can be selected.
By considering a split plate design, platen
recesses for the Square heater can be milled
for greater lengths or to keep the machine
in-house.
For even heating along the length of the
heaters, consider distributed wattage.
If terminations are protected by a wire
enclosure box and the platen is operating in
excess of 450º F (232º C), consider specifying
high temperature mica tape leads.
To leads that are flexing, add clip supports;
where there is abrasion, cover the leads with
stainless steel braid. For possible contamina-
tion, request armor.
PRECISION STANDARD SQUARE
CARTRIDGE HEATERS
Our Square Cartridge heaters,
3
/
8
”
(9.5 mm),
1
/
2
”
(12.7 mm), and
5
/
8
”
(15.9 mm) square,
provide more surface area contact than
cylindrical types. Square Cartridge heaters
are normally inserted in a milled slot, there-
fore permitting greater lengths than would
be practically feasible with a drilled or
reamed hole.
As with our Standard Cartridge, Fast Heat’s
Square Cartridge heater features a stainless
steel sheath for resistance to oxidation and
can withstand internal temperatures of up
to 1000º F (538º C). In order to optimize heat
transfer and lengthen the life of the heater,
high-purity magnesium oxide (MgO) insula-
tion fills any space around the resistor wire.
APPLICATIONS
Square Cartridge heaters can be used in
virtually any application involving average
temperatures and vibration. Some examples
include sealing bars, heating platens,
heating fluids and forming.
Square Cartridges can also be modified to
meet the demands of virtually any special
application. Our engineers can utilize a vari-
ety of alternative features and options to
customize the heater to your specific needs.
Summary of Contents for VSM 71-701
Page 1: ...1 VPN 35391S February 2006 Rev 05 Price 60 00...
Page 2: ...2...
Page 20: ...20...
Page 52: ...53 Pre Start Up Check List...
Page 99: ...99 Recommended Spare Parts List...
Page 104: ...104 Gate Rotor...
Page 110: ...110 Main Rotor VSS...
Page 112: ...112 Main Rotor VSR...
Page 114: ...114 Slide Valve Cross Shafts and End Plate...
Page 118: ...118 Capacity Slide Volume Slide Carriage Assembly Slide Valve Carriage Assembly...
Page 134: ...134 Miscellaneous Frame Components VSS Screw Compressor VSR Mini Screw Compressor...
Page 138: ...138 C FlangeAdapter Components 630 620 610 640 601 641 630 601 620 610 640 641 642 650 651...
Page 140: ...140 Replacement Parts Tools...
Page 144: ...144 GaterotorAssembly...
Page 148: ...148 Main Rotor Slide Valve Cross Shafts and End Plate Models 71 401 Only Counter clockwise...
Page 152: ...152 Main Rotor Slide Valve Cross Shafts and End Plate Model 501 701 Only Clockwise...
Page 154: ...154 Volume Ratio Capacity Slide Carriage Assembly Slide Valve Carriage Assembly...
Page 158: ...158 Miscellaneous Frame Components Model VSM 501 701 Model VSM 71 401...
Page 160: ...160 Replacement Parts Accessories Housing Accessories C Flange Assembly...
Page 166: ...166 Haight Pumps...
Page 170: ...3 Refrigerating Specialties Division...
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Page 244: ...168...