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Foundry Products -->
Sand Mixers --> M-Series
Mixer Options
Foundry
Products:
Continuous Sand Mixers and Batch Sand Mixers
M-Series Mixer Options
Mechanical
Options
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Removable Supply
Hopper |
Our standard 3000#
four-way forklift removable hopper is ideal for
shops that do not require large sand silos or do
not have the head room for them. These hoppers
are designed to hold a full bulk sack of sand to
eliminate the handling of small sand sacks.
Available with hopper stand for ease of
installation. |
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Powder Feeder |
This flexible sided
volumetric
powder feeder
is used to add powder materials to the mixing
chamber. |
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Fan Bearing Swivel |
This
option provides 270-Degree swivel movement for
mixing chamber. Reach and sand inlet height are
shorter than our extended reach swivel option.
Available on models M50XL through M200XL. |
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| Extended Reach
Swivel |
This provides a
two-bearing mount for mixing chamber that allows
it to swivel 180 degrees.
Please note that the sand inlet height must be
considered with this option as the extended reach
requires an extended inlet height. |
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| Under Motor Swivel |
This option provides
for a slewing ring style bearing mounted beneath
the motor head plate for the primary swivel and
allows for 270 degrees of rotation. This option
is available on 300 #/minute and larger machines. |
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| Over Arm Swivel |
This option provides
for a slewing ring style bearing mounted above the
mixing chamber and allows for 270 degrees of
rotation. The greatest advantage of the over arm
swivel is the total clearance available beneath
the mixing chamber for operators, conveyors,
skids, etc. This option is available on 300
#/minute and larger machines. |
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**NEW**
THE CUBE
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This
new option allows the user to move the
mixer easily using a forklift or move and use the
mixer while hanging from a crane. Ideal for
foundries that make large molds that require
specialty facing sands or where mobile operation
is a requirement. This unit is ideal for a demo
machine for resin companies and other foundry
consumable suppliers. |
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Standard Manual
Articulation |
This
option provides heavy-duty, double-pivot base and
arm assembly that allows the mixer to dispense
sand over a large area. Movement of the primary
arm is manually powered. A conveyor belt in the
primary arm delivers sand from the receiver at the
center of the base to the inlet of the mixing
chamber. |
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SM Style Articulation |
This
option is similar to standard manual
articulation with the exception that this unit
rotates about the fixed base and extends in and out
from the arm (Left, Right, In, Out
Controls). The SM Arm rotates around a
fixed base and the mixing chamber strokes in
and out to affect the discharge
distance. The moving appendage that the
chamber is mounted to contains a belt conveyor
for the delivery of sand to the chamber
regardless of chamber position.
This option is
standard with manual movement but both movement
points can be hydraulically powered. The
significant advantage of this style of arm over
the standard powered articulated arm is the ease
of tracing a square or rectangular pattern with a
joystick. Positional sensors are available
for lead through programming PLC molding systems.
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Mobile Mixing System |
All Palmer
M-Series mixers can be outfitted onto our line of
Mobile Mixing Chassis. This option is ideal for
foundries that produce extremely large molds that
are not easily moved after molding or for jobs
that require a great deal of setup time on the
floor. The included link takes you to see
detailed
Mobile Mixing System
specifications. |
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Articulated Arm
Hydraulic Powered
Articulation |
This
option utilizes a high torque hydraulic system
coupled with a #160 chain and sprocket to power
the rotation of the primary articulated arm. A
left/right joystick control located in the
operator control panel initiates the movement of
the primary arm. |
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Mixing Chamber Hydraulic Powered Rotation |
This
option utilizes a high torque hydraulic system
coupled with a #120 chain and sprocket to power
the rotation of the primary arm. The rotating
sprocket is bolted onto the standard high load
slewing ring for years of maintenance free
operation. A left/right joystick control located
in the operator control panel controls the
movement of the mixing chamber. |
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Dual Sand Slidegates |
This
option allows the operator to choose from two
different sands on a core-by-core or mold-by-mold
basis. A selector switch at the operator control
panel determines which sand is introduced into the
mixing chamber. Each slidegate is independent
from the other, allowing different sand volumes
for each sand. Separate pump controls allow the
pumping system to automatically change resin
percentage setpoints when a sand change is made.
This automatic switching allows the change in sand
to be made while the mixer is in operation. |
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Dual Sand/Blend
Slidegates |
This
option utilizes four air-actuated slidegates to
provide the mixer operator with a choice of 100%
Sand "A," 100% Sand "B", or a blend of both sands
(Eg – Silica / Zircon / 50-50 Blend). A
three-position switch, located in the operator
control panel, allows the operator to change sand
selection (i.e. from facing to backing sand) while
the mixer is in operation. This option includes
three pump setpoints, one for each sand
selection. The change in pump settings is
instantly effected when a change in sand is made.
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Dual Flow Slidegate |
(High /
Low Flow) – This option utilizes two slide gates
which are used to meter sand into the mixing
chamber at different flow rates. The upper
cylinder turns the sand flow on and off. The
lower cylinder has two fixed orifices for metering
of sand. The system comes with dual resin
levels. This option is ideal for shops that use
the same mixer for molding and core making. The
flow can be reduced for small core boxes or
increased for larger mold boxes. |
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Remote Electric and
Pump Enclosures |
 This
option is applicable on the M50 through M200
mixers. With a standard configuration, the pump
and electrical enclosures are attached directly
behind the mixing chamber base. With remote
pumps, they are mounted on a stand remote of the
mixer for installation against a wall, on a remote
mezzanine, or any other configuration required. |
Large photo
not available. |
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Custom Height and
Reach |
Although
Palmer bases its designs on standard machines, we
can easily modify a standard machine to fit your
application’s needs. Most of our designs are
easily modified to custom heights and reaches,
simply contact us with your needs. |
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Polyethylene Swivel |
This
option is a low cost version of a swivel mixer.
It is used primarily for mixers that are
infrequently rotated. An example would be
swiveling a mixer located over a core machine
hopper for cleaning. Two steel plates sandwich a
˝” thick sheet of polyethylene which acts as the
bearing surface. The mixing chamber is held in
place with a castellated nut. |
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Skid Mounted Mixer |
All
M-Series and CAM-Series Mixers up to 300 pounds
per minute can be rigidly mounted to either a
forklift or wheeled skid. The photo shows both
options in the same skid. |
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Integral Jug Rack |
For
machines utilizing the standard electrical and
pumping enclosure back plate, an integral resin
jug storage rack can be installed. |
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| Mulitple Resin
Levels |
This
option provides additional sets of potentiometers,
which are calibrated to two or more desired resin
addition levels - such as those used for facing
and backup sand. A dual-position switch, located
in the operator control panel, selects which set
of potentiometers control the DC motor speed.
Changes in selection of resin levels can be made
while the mixer is in operation. The change in
resin level at the mixing chamber is immediate. |
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**NEW**
Digital
Resin Level Control |
This
option provides four resin levels in a single
potentiometer. Great for upgrading a new machine
or retrofitting and old one. Digital precision
ensures good repeatability and linearity. |
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| Digital Calibration
Timer |
This
option provides a digital timer for the easy,
accurate calibration of resins and sand. Two
different options are available. The calibration
timer start / stop buttons can be located either
in the door of the primary electrical enclosure or
remotely where the resins enter the mixer chamber
for single operator calibrations. This option
eliminates the guess work and inaccuracies
associated with stop watch calibrations. |
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| Low Sand Alarm |
This
option provides a proximity sensor in the sand
receiver or delivery system. When the sensor is
uncovered, an alarm is sounded indicating that
there is a sand delivery problem. |
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| Low Sand Interlock |
This
option provides a proximity sensor in the sand
receiver or delivery system. When the sensor is
uncovered, an alarm is sounded indicating that
there is a sand delivery problem. An additional
relay will cause the mixer to stop mixing and
enter its purge/shutdown cycle. |
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| PLC Control System |
Our standard
mixer control systems can easily be replicated
into a Allen Bradley Micrologic 1000 or 1500 or
for a more advanced system, the SLC 5XX Series of
PLC’s are used. Call us with your specific
needs. |
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| Radio Remote
Control Mixer |
 All
functions of a standard mixer control panel can
easily be replicated through the use of radio
remote control. Ideal for filling of large
or deep flasks where operator safety is of utmost
importance. |
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| Pump Speed Displays |
Tachometer
displays located in the door of the primary
electrical enclosure monitor pump RPM and convert
the resulting signal into an LED readout in either
ounces, grams, or other user defined units per
minute. They provide a constant indication of
pump motor speed and allow for a calibration
adjustment while the mixer is in operation. |
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| PID Feedback
Control Using Microspeed or Dart Controllers |
The PID
feedback system utilizes pump shaft RPM to
regulate the DC voltage applied to the pump
motors. There is a calibration function which
ties the pump rpm to actual measured flow. The
readout indicates in whatever user units are
desired (e.g. - ounces, grams, milliliters). The
benefit to this option is that the pumps are
self-controlling. |
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| Dual Speed Sand Delivery Belt |
Similar to dual sand
flow on small mixers, dual speed belts allow for
varying sand flow from articulated mixers. The user can switch easily between high and
low flow as dictated by the process. Ideal for shops using the same machine to
produce cores and molds or when the user needs
slower fill for facing sand, small cores, etc. A
two speed variable speed drive is used to control
the belt drive motor speed. |
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| Hopper Auto-Fill
System |
Palmer
Mfg. has expanded its capabilities to provide you
with nearly any storage systems including silos,
hoppers, auto-fill control systems for belts,
elevators, and even pneumatic transporters.
Please call us with your specific needs. |
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| Resin Auto-Fill
System |
The Palmer Resin
Auto-Fill System is used for controlling bulk
transfer of resin from primary storage tanks to
day tanks. The base system is
set up to control liquid levels of two independent
day tanks. Two high spec
proximity sensors per day tank are mounted to a
sight glass directly on the front of the day tank.
The sight glass is generally a piece of
clear plastic or rubber tubing that is compatible
with the liquids contained approximately 5/8” in
diameter. When the low
level sensor is clear of material (none present),
a control relay in the primary electrical engages
and sends a 120v control signal to the pumping
system of your choice (customer supplied) to start
the pumps. When the upper
sensor is satisfied, the 120v signal is
discontinued. No liquid
contact ensures that the sensors stay clean and
unaffected by the chemicals unlike others systems
that use immersion sensoring techniques. |
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Pumping
System Option
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Click Images to
View |
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3rd Part Pump |
This
option provides a DC voltage precision metering
pump for three part phenolic urethane
applications. |
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Hastalloy Pump |
This
provides a wetted packing sealed gear pump made of
Hastalloy-C steel for acid catalyst applications.
This option includes a PVC air actuated ball
valve. |
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Ryton Pump |
This
provides a wetted packing sealed gear pump made of
fiberglass reinforced Ryton composite pump body
and gears for acid catalyst applications. This
option includes a PVC air-actuated ball valve. |
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Stainless Steel
Pump |
This
provides a wetted packing sealed gear pump made of
stainless steel for some acid catalyst
applications. This option includes a stainless
steel air actuated ball valve. This is a lower
cost option than the Hastalloy-C pump option but
will not be as compatible with most acids. |
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Isoset Pumping System |
This
upgrade consists of all required components for
use with the Isoset or comparable resin system.
It includes a stainless steel pump one and ball
valve as well as a continuous cavity, non-shearing
pump 2 and pneumatic pinch valve set. Note that
this system is set up for recirculation of liquid
components. |
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2nd Coreactant Pump |
This
option works well for production floors that
require two different mold set-up rates with a
binder system that requires different activators
for different set-up speeds. This option is
commonly used with ester-cured phenolics, sodium
silicates, and other binder systems where the
amount of activator does not affect strip time as
much as the chemical composition. |
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2nd Acid Pump |
This
option works well for production floors that
require two different mold set-up rates with a
furan or other acid based binder system that
require different activators for different set-up
speeds. This option can be used with Ryton,
Stainless Steel, or Hastalloy-C pumps. |
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Recirculating Pumps |
The option
replaces the two-way air actuated ball valves
provided with the standard pumping system with
three way valves. The resin pumps run
continuously and the three way ball valves divert
to the mixing chamber when called on. This system
is helpful in maintaining resin temperature and
when utilizing flow meters for liquid usage
measurement and control. |
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Magnetically
Coupled Pumps |
This option replaces
the standard system pumps with magnetically
coupled, micro gear pumps. The pumps are DC driven, identical to the
standard pump, but they operate in a
recirculating manner. The
magnetic coupling provides seal-less operation,
which eliminates any maintenance associated with
pump shaft seal replacement. Also included with this option are recirculating
diverter valves for each pump.
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FLOW-BOSS Liquid
Monitoring System |
The
Flow-Boss
utilizes positive displacement flow meters which
monitor the actual flow of the resin components.
The greatest difference between the Flow-Boss and
traditional pump motor RPM based control systems
is that this system monitors actual resin flow,
not pump RPM. By monitoring the actual desired
system variable, viscosity and temperature
measuring errors are minimized as well as control
errors related to worn or sticking pumps. The standard microprocessor control system
(Allen-Bradley PLC) monitors the output signal
from each flow meter and compares the flow to the
desired addition rate. |
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Mass Flow Pumping System |
The
Mass-Flow Pumping System
couples the high accuracy of self calibrating flow
meters with the benefits of a totally sealed
pumping system. These items, in conjunction with
the PLC control system, DC motor controls, and
positive displacement magnetically coupled
external gear pumps, will accurately meter in the
desired amount of material to the sand mixing
chamber. This system will have two output levels
– each with a visual and audible high and low flow
alarm that is set at a percentage of setpoint. A
four-position switch for remote mounting is
included. The output of each resin pump will be
shown on the flowmeter display screen, as well as
operating interface display. Both displays will
be read to the desired engineering units. The
operator interface will be mounted in the main
enclosures (unless otherwise specified). The
Coriolis Mass Flowmeters incorporate a number of
innovative design features, such as quiet mode
oscillation, center balanced design, and a
straight tube design. These design features focus
on maximizing reliability and durability and
minimizing vulnerability to measurement noise.
These meters use thicker tube walls to eliminate
mechanical fatigue due to sensor wear and stress
due to vibration. All input and output signals
are scanned and updated ten times per second.
These meters actually adjust for material
viscosity changes and minor line restrictions. |
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Trial Pumping
System |
This
option is ideal for foundries that regularly
perform trials or switch binder systems. The
standard pumping system pictured is easily
interchangeable and upgradeable. For a full
description of the controls and capabilities,
refer to the
Retrofit Pumping System
section of this web-site. |
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Other Options
Anything that you need
or desire can generally be accomplished.
Call our offices or send us an
E-Mail
if the options or accessories that you require are not
listed.
For
a complete and detailed description of Palmer
mixers, click here.
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