Model LWF-SC-V Loss-In-Weight Vibratory Feeder with
Spiralator™
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Spiralator Vertical Lift
Hopper Agitator
Patented tray insert creates a multiple
node, standing (vibrating) wave
which acts to shed any material that
has a tendency to adhere to the conveying
surface.
Nodal Membrane Feeder
Click to see video |
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 Spiralator Vertical Lift Hopper
Agitator creates a patented
feeder system that assures conditioned
and uniform flow of
caking and cohesive powders as
well as interlocking and delicate
flakes. |
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Quick Release Vibratory
Feeder Tray |
The LWF-SC-V Loss-In-Weight Feeder with patented Spialator is designed to
assure uniform, non-pulsating accurate feeding of a wide range of materials, from
free flowing, to friable, to cohesive.
- Volumetric Capacity: Up to 80 ft³/hr (2.26 m³/hr) product dependent. Consult
factory for higher feed rates.
- Vibrating Feeder Drive: Electromagnetic Drive
-4 (104 mm) wide tray, 115 VAC, up to 40 ft³/hr
-5 (127mm) wide tray, 115 VAC, up to 60 ft³/hr (Nodal-Membrane Tray)
-7 (178 mm) wide tray, 115 VAC, up to 80 ft³/hr
- Scale Type: FMSS Cable Scale System (dead load is mass- counterbalanced)
and Model LC-137 Weight Resolver,
- Scale Capacity (live load): variable Up to 500lbs (998 kg)
- Hopper Capacity: 2, 4, 6, & 10 ft³, consult factor for larger sizes.
- Accuracy: 0.25% to 1% of set rate ±2 sigma based on thirty 1 minute samples
or 1.0% of weigh hopper storage capacity, whichever is greater.
- Automated Test Weight Lifter Assembly (ATWL). Used to automatically
conduct a zero and span calibration
Special Features & Options
The Thayer LWF-SC-V Loss In Weight Feeder is designed to assure uniform, nonpulsating
accurate feeding of a wide range of materials, from free flowing to friable to
cohesive.
Specialized Material Conditioning System:
The LWF-SC-V when fitted with Thayer's (optional) patented Spiralator vertical lift
agitator creates a patented feeder system that assures conditioned and uniform flow of
caking and cohesive powders as well as interlocking particles and delicate flakes.
Two feed tray designs available:
A) Standard mirror finish steel tray is used for non-cohesive pellets, graduals, fibers and
flakes.
B) Optional, patented elastomer membrane insert fitted to our vibrating tray.
The Thayer Cable Suspension Scale (patented) is the most rugged and forgiving Load
Cell Weighing System available on the market. It can take more physical abuse and
can tolerate more foundation distortion/deflection than all other known designs.
The exclusive Thayer Scale "FMSS" design provides extremely high sensitivity.
Feeder dead load is mass-counterbalanced so that only material weight (live load)
is measured. This feature helps assure excellent control in noisy environments.All of the articulate parts of the scale mechanism are supported from axially inex-
tensible, but laterally yieldable suspension elements (stainless steel pre-stressed
aircraft cable), which are arranged to hang freely, thereby avoiding any appreciable
spring or hysteresis effects, variations in mechanical advantage, or binding due to
imperfect leveling.
Because of this unique mechanical property of the force transmission system, any
laterally directed forces and shocks on the scale or its supported machinery can not
cause destructive shear and bending stresses to develop in the elements themselves
or at the load cell junction. The system, being yieldable in the lateral direction, is
therefore effectively and completely protected by using laterally placed stops in
proximity of the weighed structure.
Weight loss is measured by a highly accurate, very sensitive, high output electronic
force measurement sensor. The Thayer Series LC-137 weight resolver is a force
measuring device designed specifically for use with Thayer Scale weighing systems.
It is a precision-built, heavy duty device designed for long term stability and accuracy
under the most demanding applications. It is initially calibrated and installed by
the factory and normally requires no routine maintenance. So rugged is the FMSS
Scale system that the LC-137 Weight Resolver is guaranteed for 15-years.
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