Vilter VSM 71-701 Operation And Service Manual Download

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FAST HEAT, INC.

STANDARD

CARTRIDGE HEATERS

STANDARD CARTRIDGES

Our Standard Cartridge heaters are
designed as an economical, quality heater
for lower temperature use (typically 40
watts per square inch, depending on the
application). Standard Cartridges can meet
U.L./C.S.A. approval, use the chart on page
151 for reference and consult factory.

The Standard Cartridge Heater is made to
withstand internal temperatures of up to
1000º F (538º C) and features a stainless
steel sheath for resistance to oxidation.
High-purity magnesium oxide (MgO) fills
any space around the resistor wire in order
to optimize heat transfer and increase the
life of the heater.

For faster shipment, Standard Cartridges are
available through our Fast Track delivery
program. Refer to page 2 for a complete
description of these rapid delivery programs.

APPLICATIONS

Standard Cartridge heaters can be used in
virtually any application involving lower
temperatures and relatively little vibration or
impact. Some examples include sealing bars,
heating platens, heating fluids and forming.

Standard Cartridges can also be modified to
meet the demands of special applications.
Our engineers can utilize a variety of alterna-
tive features and options to customize the
heater to your specific needs.

FEATURES AND BENEFITS

• Wide range of diameters.

• Many termination styles.

• Voltage variations.

• U.L. approved and C.S.A. recognized.

• Top quality ceramic element support.

• Unique winding design allows faster

heating and longer life.

• High purity MgO packing for even

heat distribution.

• Fiberglass insulated lead wire is standard.

Other lead wire insulation available
upon request.

MATERIAL AND CONSTRUCTION

• Computer designed specifications.

• 304 stainless steel sheath for oxidation

resistance.

• Ceramic insulator spaces helically wound

resistor inside the sheath.

• Helically wound nickel chromium resistor

is of a conservative design for each
application and evenly stretched through
the ceramic insulators.

• Fine grain high purity magnesium oxide

(MgO) fills any voids around the resistor
wire to optimize heat transfer, dielectric
strength and life of the heater.

• Resistor wire is joined to the leads by

placing each end into nickel chromium
which, upon crimping, affords a positive
and consistent junction.

• U.L. approved and C.S.A. certified flexible

nickel conductor with fiberglass insulated
lead wire 482º F, (250º C) is standard.
Mica tape/fiberglass insulated 842º F,
(450º C) available when requested
as dictated by the application.

• Disc end of the heater rests on a mica

insulator and is held in position when
the sheath is rolled over onto it. This is a
standard assembly procedure unless the
application requires moisture or water-
proof sealing, at which time the end cap
can be sealed by brazing or welding.

• Ceramic cap standard; cement, epoxy or

RTV seal also available.

Ceramic cap

Lead wire

Spacer

Crimped tubing

Core

MgO

THE STANDARD CARTRIDGE HEATER