News and confirmations from CMG at Ecomondo

At the Ecomondo trade fair, to be held in Rimini from 5 to 8 November, CMG Granulators is presenting an absolute novelty: the new Regrind Evac Systems range of evacuation, dedusting and powder containment system solutions. The unit is one of the largest of its category and can evacuate, convey, dedust an amount of regrind of up to 7,000 kg/h. The entire new range starts at a capacity of 200 kg/h and, through a selection of 10 different sizes, reaches the impressive capacity of 7.000 kg/h.

The new evac systems operate under full vacuum, meaning the regrind material is evacuated from the granulator and is gently conveyed to a cyclone receiver and through a dedusting chamber, all of that under negative pressure. The advantages of using negative pressure are several, from not generating any dust or small particles by friction against the conveying pipe walls to avoiding the impact against the blower impeller blades, utilized on conventional blow-thru evac systems. The regrind is then deposited in silos, octabin or big-bag, while the powdery air is handled by a purposely designed automatic self-cleaning filter unit. The powder collected at the filter unit is automatically compacted and deposited/boxed for recycling or disposal. The complete system guarantees ZERO pollution to the environment and the degree of filtration of the air from the filter station can be adjusted in respect to local regulations or specific requests. All new system solutions supplied by CMG Granulators will be equipped with the new Evac Systems, that are also offered as upgrade kits for existing/legacy granulation systems, CMG and non-CMG.

At the Rimini fair the company will also launch the brand new G55-120 model granulator, suitable for recycling applications as well as injection moulding, blow moulding and extrusion as well as the EV916 granulator unit, one of the largest granulators in its category, with a hourly capacity of 6,500 kg. This machine features a new state of the art cutting chamber design and an integral evacuation system composed of receiver cyclone with built-in dedusting chamber and air/powder automatic filtration system. It also stands out for its size: 8 metres of height with a footprint of 3 x 8 metres.

The brand-new cutting chamber design for its Evoluzione series granulators features a new rotor configuration allowing the rotor blades to cut the plastic feedstock perpendicularly against the bed blades, obtaining the highest degree of cutting penetration and precision. The rotor blades are mounted on the edge of the rotor holding modules and not on a holding block. Not only this feature is beneficial, as the inclination of the rotor blades is very high, but it also allows easy and quick servicing/replacement of the blades, with comfortable access from the front of the machine. The rotation of the rotor does not produce the very detrimental “drag” effect, meaning the mass of material being ground in the cutting chamber does not rotate with the rotor producing lots of dust and fine particles, that will all become waste through the washing line. The production of fine particles is reduced to few percentage points, versus a common 15% or more from conventional granulators. The rotor is of the open type design, taking only 30% of the cutting chamber volume. The rotor/cutting chamber volume utilization ratio is 30/70, versus alternative ordinary granulators with 70/30 ratio. This feature alone allows more than double the quantity of material in the cutting chamber. The more is the material in the cutting chamber, the higher is the capacity of granulation. The new cutting chamber has the so called “tangential set up”. Such characteristic confers voraciousness and guaranteed bite, with no need of feeding aid devices, commonly utilized with conventional granulators.