| LR-PMT-13
Heat Treating Furnace
Machine shops save time with a furnace at
their disposal in their own shop. You will no longer send a die
out for heat treating, wait for its return and then send it out
again for additional heat treating.
Solid construction
The door swings open with one-handed
operation. The LR-PMT-13 furnace is insulated with refractory
firebrick. The elements are mounted in dropped, recessed grooves
machined into the firebrick. This type of groove was invented by
us in
1952. This groove protects the element for long life and low
maintenance. Elements are simple to replace because they’re
exposed rather than embedded. You can thread new elements into
place following clear instructions in the manual.
The firing chamber is protected by a
steel case painted in high temperature blue. A built-in stand
lifts the firing chamber safely off your worktable, so no extra
stand is needed. The door is mounted with a heavy-duty hinge for
smooth opening. A micro-switch shuts off the power to the
elements when the door is opened. We use high temperature wire
in the switch box for long life. A heat shield, mounted between
the switch box and furnace, helps keep the switch box components
cool even during extended operation. To further dissipate heat,
the switch box is extra large and generously louvered. Each
furnace comes with a cord and plug for immediate installation
and a one year warranty.
Complete instructions
Your furnace includes a wiring
diagram, programming instructions, and heat treating manual. The
manual gives you basic heat treating instructions for D2, 440C,
ATS 34 and 154 CM. The manual is written in plain English for
the beginner.
Optional Gas Injection Flow
Meter
During heat treating, scale forms on
the surface of the steel. One way to eliminate most scaling is
to wrap the steel in stainless steel foil. An easier way is to
install the gas injection flow meter on your furnace. It is
available as either an add-on kit, or you can order the furnace
with the meter installed.
The meter regulates the flow of an
inert gas, such as argon, inside the furnace. The gas displaces
the oxygen to prevent most scaling.
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