CENTRIFEEDER MCV: GRAVIMETRIC WEIGH FEEDER

The CentriFeeder line of feeders provides accurate, real-time flow measurement, as well as near perfect control of flow rate and total. For blending applications, control the flow rate of an individual ingredient, or combine several CentriFeeders for near perfect recipe control. If you are controlling ingredients entering a batching process, use the CentriFeeder for controlling the total of one or more ingredients entered into the batch.

The CentriFeeder MCV is a gravimetric weigh feeder that integrates a flow measurement device with the flow control capabilities of an integrated slide gate to accurately measure and control the flow of any dry, free-flowing solid that can be controlled using a slide gate. Through the use of a highly customizable touch screen HMI, a PID control loop is established that modulates the slide gate feeding our patented flow measurement device. The outcome is an accurate, easily maintained, consistent flow that can be used for mixing, ratio control, or even bulk density measurement.

The CentriFeeder MCV is a gravimetric device that works by integrating the flow measurement accuracy of the CentriFlow Meter with the flow controlling capabilities of an Integrated Slide Gate. Combined into a single, multifunctioning weigh feeder, the MCV measures the flow rate and total of the product that runs through it, but also controls the flow rate and total to a predetermined setpoint. As product flows through the MCV and over the curved measurement pan, the instantaneous flow rate is measured and used, via a PID control loop, to modulate the Integrated Control Valve. Because the CentriFeeder MCV is able to respond to changes in flow rate within 100 ms and can typically be within +/-1.00% of the flow set point within 1 second, it offers a perfect alternative to conventional Loss-in-Weight feeders. The result is an extremely accurate way to measure and control the flow of any granular product such as pellets, grains, fertilizers and more.

VOLUMETRIC CAPACITY OF THE CENTRIFEEDER MCV: GRANULAR PRODUCTS
FEEDER SIZE	MIN VOLUMETRIC FLOW RATE	MAX VOLUMETRIC FLOW RATE	MIN FLOW RATE*	MAX FLOW RATE*	TYPICAL ACCURACY**
MCV-1.5	0.13 ft3/min 0.004 m3/min	1.81 ft3/min 0.05 m3/min	280 lb/hr 127 kg/hr	3800 lb/hr 11724 kg/hr	+/-0.25%
MCV-3.0	0.29 ft3/min 0.008 m3/min	3.81 ft3/min 0.11 m3/min	600 lb/hr 272 kg/hr	8000 lb/hr 3629 kg/hr	+/-0.25%
MCV-6.0	0.57 ft3/min 0.016 m3/min	7.61 ft3/min 0.21 m3/min	1200 lb/hr 544 kg/hr	16000 lb/hr 7,257 kg/hr	+/-0.25%
* Based on 35 lb/ft3 Plastic Pellets with a nominal particle size of 0.15 in ** Typical Accuracy is for mapped products

For batching, filling or other non-continuous blending applications, the CentriFeeder MCV can be used to control based on the total amount of product passing through the weigh feeder. After entering a setpoint for the fill/batch total, the CentriFeeder MCV will discharge the desired amount of product at a controlled flow rate. The feeder will then close its Integrated Control Valve and the product flow will stop.

BATCHING AND FILLING CAPACITY OF THE CENTRIFEEDER MCV: GRANULAR PRODUCTS
FEEDER SIZE	MIN BATCH SIZE	MIN TARGET TIME	MIN VOLUMETRIC FLOW RATE	MAX VOLUMETRIC FLOW RATE	TYPICAL ACCURACY*
MCV-1.5	157.5 g	5 s	0.13 ft3/min 0.004 m3/min	1.81 ft3/min 0.05 m3/min	+/-0.25%
MCV-3.0	330.7 g	5 s	0.29 ft3/min 0.008 m3/min	3.81 ft3/min 0.11 m3/min	+/-0.25%
MCV-6.0	661.5 g	5 s	0.57 ft3/min 0.016 m3/min	7.61 ft3/min 0.21 m3/min	+/-0.25%
* Typical Accuracy based on Min to Max flow over the range of the feeder for a mapped product