Grado Adroit – Gravimetric batch blender and extrusion control

Gravimetric batch blender, designed to blend free flowing pellets in processes which require accurate dosing and repeatability with efficient mixing. Unaffected by vibrations, GRADO ADROIT has been designed to be easily mounted directly onto the throat of the processing machine, to be installed either on a mezzanine, or on a vacuum take-off stand to feed one or more extruders.

MORE INFORMATION

SUPERIOR DESIGN COMPLYING RIGOROUS PROCESS REQUIREMENT

Full modular construction
For ingredient change, there is no need to stop and “dismantle” the machine
Practical and easy access to all parts for maintenance or quick and accurate cleaning
Drain spout for quick and complete ingredient feed hopper emptying
Clean out doors for fast removal of dust or ingredient residues and for visual inspection
Round bottom mixer can be completely emptied leaving no trace of residue material
Easy to use, simply set the dosing percentage

UNSURPASSABLE ENGINEERING AT TOP LEVEL IMPROVES RELIABILITY

Number of parts reduced at minimum
No one hand-made part, but cast aluminum, molded custom engineered plastic compounds, machined steel
PLC based control from market leader producer
Re-engineered manufacturing process reducing delivery time

IMPROVED THROUGHPUT CAPACITY IN A COMPACT SIZE

Advanced high noise immunity weighing system reduces weight measurement time
Throughput capacity results improved as per faster weighing cycle time

SUPERIOR BLENDING ACCURACY AND PRECISION

Enhanced control dynamics and weight measurement quality improves process capability

MIXING CHAMBER SIZING IMPROVES BLENDING CONSISTENCY

The 3 batches mixing chamber capacity ensure the right mixing time and improves blending consistency
As the motor mixer has a round bottom, there are no stagnation areas. The mixing paddle moves the entire mass of material resulting in a homogeneous blend and preventing the formation of preferential flows that would favor the separation of the ingredients into finer, heavier or more flowing granule sizes.

Full modular construction, from two to six components
Self-supporting structure prearranged for vacuum receiver installation without additional supports
All parts that come into contact with the ingredients are made of food-grade materials or finishes
Removable individual hopper for each ingredient
Patent pending dispense valve, slide gate type
Round bottom mixing chamber with rotating paddles driven by AC motor, continuous or timed functioning
Mixer on load cell for a precise extruder throughput measurement and control
The on-board control box does not require any floor space
Standard type load cells, high resolution weighing system (16 bit A/D converter) to maximize analog accuracy
Doteco own developed software
Flashing alarm signal and diagnostics in plain text
No scheduled maintenance required
Reduced installation costs. Complete wiring of the dosing unit is factory made
Minimum level sensors
Integrated gravimetric extrusion control (GraviLine) as option
Integrated loading system control (SmartConvey) as option

Each ingredient is fed, in sequence, into the weigh bin through slide gate valves.
On reaching the preset batch weight, a special sensor signal causes the batch to be discharged into the mixing chamber

GRAVICLEAN is an automatic cleaning system for GRADO ADROIT blenders.
It automatically performs the cleaning operations to prepare the dosing stations in the event of a material change. Ideal for lines where production changes are frequent, GRAVICLEAN is 100% retrofittable on pre-existing lines.

VISIT THE FULL PRODUCT PAGE

On the throat of the processing machine
On a mezzanine, to feed by gravity the supply hopper of the processing machine
On a vacuum take-off stand, to feed one or more processing machineas blending station

Integrated loading system control (SmartConvey)

Fully automated loading system control, easy operated by the same interface used for gravimetric blenders. One or more vacuum pumps to serve more than one receivers whose association can be set through configuration. All receivers linked to the same pump are served in turn, according to a priority sequence automatically assigned. Loading active control to reduce ingredient at minimum on changeover