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See our HT-Series
Systems
for mechanical, wedge driven,
piston pump metering, mixing
and dispensing. |
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ECS-Series Servomotor-Controlled,
Piston Pump Meter/Mix/Dispense Systems
These systems are specifically
designed to degas, meter, mix and
dispense abrasive-filled and unfilled, multiple-component resin
formulations. They handle epoxy, urethane, nylon and polyester
materials. Typical applications include open potting and encapsulating,
encapsulation of high voltage ignition coils inside vacuum chambers,
low-pressure fiber-filled nylon injection and RTM (and/or VARTM) resin
injection of advanced composite parts.
Extremely accurate and fully
programmable, ECS-Series Piston Pump
Systems offer state-of-the-art PLCs, accurate temperature control to
285oF, digital servomotor-control and optionally, coriolis mass
flowmeters for closed-loop ratio and flow control.
You can easily select your next pour
recipe by name or number at the
operator-interface. Setting digital presets for recipes, including ratio,
shot-size, output-rate, temperatures and mixer-speed, can be made
with pushbuttons... in just seconds. The operator-interface is menu-
driven for easy operation.
ECS-Series systems include in-line
pressure sensors and precise volume
flow control for critical RTM (Resin Transfer Molding) applications. In the
mold, mixed material flow through the preform is monitored and accurately
controlled to produce virtually void-free RTM composite parts. Output
pressures to 600 PSI can be utilized to penetrate the preform and optionally,
metered and mixed material temperature control to 500oF is available.
Similarly, mixed material output
pressures at the mixer can be controlled at
very low injection pressures for VARTM (Vacuum-Assisted Resin Transfer
Molding) applications.
More Information - See Overview
and the items listed below.
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Blind-Rod
Piston Pumps
Our Blind-Rod pumps include automatic rod-seal lubrication,
which flushes filler particles from the rod before wear and abrasion
occur on critical seal components, even when processing abrasive
aluminum-oxide, silica-sand and glass-type fillers. This means less
maintenance and more high-quality mixed material output. Various
pump sizes match any ratio and output requirement. Supply tanks
can mount on the (top) inlet side of the pump or they can be floor-
mounted with feed lines to the pump. |
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Linear
Digital Servomotor Drives
Linear servomotors are the electronic drive mechanisms for the
piston
rods. Digital servomotor-control offers precise linear movement of
multiple piston rods to maintain ratio accuracy and repeatable piston
movement at ±0.02%. Electronically, these high-torque servomotors,
servomotor-amplifiers and the PLC-controller maintain ratio, while
output speeds ramp up and down. This insures that the physical
properties of your finished parts are precisely maintained. |
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Programmable
Logic Controller (PLC) or PC Control
Process variables and presets you enter at the operator-interface are
stored as recipes in the PLC (or optional Flat Panel IBM-PC.) When
a pour is initiated, that part's recipe instructions are passed on to the
servomotor amplifiers, which precisely control linear movement of the
servomotor drives and the pistons. Ratio, shot-size, output-rate, mixer-
speed (unless you use disposable static mixers) and other process
variables for each part are controlled via saved recipes in the PLC or PC.
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Straight-Tube
Coriolis Mass Flowmeters
The positive-displacement piston pumps included with our ECS-Series
systems provide extreme accuracy and long service-life, even when
processing abrasive-filled materials. These pumps are driven by
independent servomotors, which are electronically (i.e., digitally) linked.
This insures extremely accurate piston pump position and speed control.
Truly precise ratio control, however, needs to rely and respond to
continuous and near perfect measurement of the actual mass flow from
each metering pump to the mixer. Our optional mass flowmeters,
installed at each metering pump, provide the very best available,
continuous, closed-loop feedback, ratio correction and control. |
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