| Doteco is a world leader in gravimetric blender innovation
and gravimetric yield control systems. Service for Doteco in Canada
is from Scheme and Systems in Mississauga, ON.
The Grado blender is a cost effective solution for blown film
blending and yield control system. The blender utilizes a two-stage
control. The first stage is a batch blender that weighs the individual
components and proportions them correctly to achieve the desired
blend ratio. The second stage is a mixing chamber that is supported
by load cells and controls the throughput rate of the extruder
for perfect yield control. Monolayer or nine layers each layer
can be individually controlled for perfect throughput and average
gauge control.
Blendo is a dosing system for more demanding applications such
as required by the fibre industry. The Blendo system incorporates
discreet gravimetric dosing additives and a unique cascade mixer.
A downcomer hopper mounted on load cells offers independent extruder
control to complete the yield control system.
All of Doteco’s blenders are designed to mount directly
on the extruder feed throat to minimize resin inventory, minimize
un-mixing of the pellets in a downcomer hose and to minimize
the response time required to make a blend or product change.
Hoppers are of stainless steel construction for zero corrosion.
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GRAVIMETRIC
BLENDING & YIELD CONTROL SYSTEMS 
