Sterlco SGBD Series Batch Gravimetric Blenders - Manual (Page 18)

BLN1-600A Chapter 2: Functional Description 18 of 116
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.
Slide gates create a pinch-point hazard.
Always disconnect and lockout all electrical power and pneumatic (i.e.
compressed air) sources prior to servicing or cleaning any blender,
including all Batch models. Failure to do so may result in serious injury.
DIAMOND GATE CLOSED
DIAMOND GATE 3/4 CLOSED
DIAMOND GATE 1/2 CLOSED
DIAMOND GATE OPEN
• 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.
• 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.