Rotor Weigher
Continuous weighing of poor flowing bulk solids
Overview:
- Sealed dust-tight and maintenance-free system
- Low installation height, easy assembly
- Largely insensitive to vibrations
- Direct mass flow measurement with high accuracy
- Patented and proven measuring system
Application:
The Rotor Weigher RC is suited for the following applications:
- Continuous weighing of bulk flow for implant control purpose and calculation of extraction
- Frequency controlled dosage for production of blends or additives
Function:
A vertically aligned rotor is located inside the Rotor Weigher. It is driven at constant speed. The product is fed to the center of the rotor and accelerated to approx. 9 m/s. The occurring Coriolis force is gathered by a torsion spring and captured by a flux induction sensor. The system is completely proportional to the mass flow measurement. Material-specific characteristics such as flow characteristics or friction are not included in the measurement as errors.
Applied Products:
A large number of poor flowing products can be measured, e.g. flour, powder and bran.
Construction:
The Rotor Weigher consists of housing, motor, gear transmission, driving axle, rotor plate and measurement instrumentation. The housing is dust-tight. The housing is made of stainless steel, the inlet is round.
Sizes:
The following sizes are available:
Integration:
Inlet and outlet are supplied with flare tube ends. Product should be fed in straight direction.
Air flowing through the weigher due to pressure differences must be prevented. If necessary
a bypass pipe for pressure compensation must be installed.
Accuracy:
The measuring tolerance lies at +/- 0,5*, depending on feed design, product homogeneity
and throughput.
Evaluation Electronics:
External electronic type FE128
Available for panel mounting (24 V DC) or inside wall housing (230 V AC), can be installed independent from the dosing unit, connection of 1 weighing unit, with LCD-display and keypad, display of capacity and total weight, preselection function, output if kg-pulses and analogue output of capacity (0-10 V), graphic registration over 48h, RS232-485-interface.
