Model LWF-SC-V Loss-In-Weight Vibratory Feeder

Volumetric Capacity: Up to 80 ft³/hr (2.26 m³/hr). Product Dependent. Turn Down 100:1. Consult factory for higher feed rates.
Vibrating Feeder Drive: Electromagnetic Drive.
-4 (104 mm) wide tray, 115 VAC, up to 40 ft³/hr.
-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 (226 kg).
Hopper Capacity: 2, 4, 6, 10 ft³, consult factory 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

The Thayer LWF-SC-V is a large capacity Loss-In-Weight Feeder is designed to assure uniform, non-pulsating accurate feeding of a wide range of materials, from free flowing to friable to cohesive.

Features:

Accurately measures load regardless of load position.
Immune to support structure deflections and process vibrations.
Inherently self aligning to gravity.
Nulls out heavy tare loads.
1,000% over load capacity.
Scale may be suspended from above or supported below.
Immune to shock or impact loads.
Easily accessible load cell can be re-rated to meet future capacity changes without removing the feeder.
OCMP (Controller Output Compensation) & EFT (Excitation Frequency Tracking) improves and enhances instrumentation operation.

The LWF-SC-V can be configured to be used in conjunction with many different styles of electromagnetic
pan feeders up to 48 wide.

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 inextensible, 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.