Sterlco SGBD Series Batch Gravimetric Blenders - Manual (Page 17)

Bulletin Number Chapter 2: Functional Description 17 of 101
Slide Gates
Air operated slide gates are provided to meter the majority of pellet ingredients on Slide Gate
blenders.
A stroke limiter (included) can be installed on the metering gates to limit their travel. This
device decreases the stroke of the gate and reduces the metering orifice of the valve. The
unique diamond gate provides a square opening at any stroke length, providing more
consistent flow from smaller valve openings than conventional slide gates. This stroke
limiter may be necessary to accurately meter low percentage ingredients.
The air cylinders operating the slide gate are rugged, stainless steel cylinders designed for
industrial use.
DIAMOND GATE CLOSED
DIAMOND GATE 3/4 CLOSED
DIAMOND GATE 1/2 CLOSED
DIAMOND GATE OPEN
WARNING! Slide gates create a pinch-point hazard.
WARNING! Always disconnect and lockout all electrical power and pneumatic (i.e.
compressed air) sources prior to servicing or cleaning any blender,
including all Slide Gate/Auger models. Failure to do so may result in
serious injury.
Note: The metering range assumes 1/8” diameter free-flowing plastic pellets
weighing approximately 35 lbs./cu. ft. This is meant to be an
approximate sizing recommendation and can vary with different bulk
density resins, pellet configuration, etc.
Note: The unique diamond
gate provides a
constant aspect opening
that remains square
regardless of the stroke
length of the cylinder.
This design provides a
wider cross sectional
opening when
approaching a closed
position, and provides
better flow of plastic
pellets out of the
opening.