CDS-SD / CW-R Cascade Drop Slide,
Static Dwell Checkweigh with Reject
EXPRESS SYSTEM 650 SEQUENCE OF OPERATION

The CDS-SD / CW-R can generally be described as a sequence of three in-line chutes. First is a short Infeed Chute. Second is the Scale Chute. Third is the Discharge / Reject Chute.

1. The product transfers from user's existing infeed, and slides down the Infeed Chute, which funnels to the Scale Chute.

2. As the product slides onto the Scale Chute, it is captured by a pneumatically operated gate.
   
   
3. Immediately upon capture on the Scale Chute, the product's weight stabilizes, and is classified as either Under, OK, or Over (by the Express-System #602 instrumentation).
   
   
4. The pneumatically operated Scale Chute gate lifts, allowing the product to slide under the gate and (if classified as OK) slide down the Discharge / Reject Chute and off the end of the system.

   a. If the product was classified as a reject, the Discharge / Reject Chute is pneumatically operated so that the product will slide from the Scale Chute and then under the Discharge / Reject Chute. Thus, this creates "drop-gate" reject, with the product falling into a reject container or other take-away conveyance.
   

Because the product is weighed "static", higher accuracy is possible than that achieved with in-motion weighing processes. Additionally, the simplicity of design and compact package makes Express-System #650 an outstanding (and economical) alternative to traditional in-line motorized checkweigher systems.

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