Suction of scrap and trims

The different types of scrap material to be suctioned and the shapes of the individual machines require in-depth studies so as to achieve correct collection.
Incorrect size assessments limit production performance and generate onerous energy consumptions.
Increasingly high performance can only be guaranteed if perfect sizing is achieved, along with an exceptionally streamlined design which are the result of extensive experience gained over the years.

The correct sizing of a plant system must be analysed from the collection phase through to the storage of the material and to the ejection of the air into the environment. Just one single element incorrectly designed generates problems that have repercussions with a “domino effect” along the entire material suction and conveying circuit. This is why, during the design and engineering phase, it is vital to gather as much information as possible on the type of product to be processed. The result involves a targeted choice of fan to be used, accessories to be included in the supply (straight or serrated cutting blades) and the construction specifications related to the same.
The new “CHOPPER EVO” fan concept not only improves performance in terms of efficiency, but the rapid dismantling of the casing allows an immediate change to the type of orientation, achieving up to SIX different types of configuration with the same product.

A suction system is naturally not limited to the use of chopper fans inserted in the process, as sometimes, depending on the different types of material to be collected and the speed of the production lines, it requires the use of “venturi” conveyor systems with highly streamlined profile injectors, combined with first-rate international branded centrifugal fans with yields of over 85%.
In addition, certain applications require the use of “Cutter” system which include rotary blade choppers inserted in the system suction circuit. Once again Neuberg chooses highly reliable international partners.
The choice of material conveyors according to the size and shape of the materials, ensures constant uniformity of product conveyor speed, minimising the load losses on the circuit itself, an element which, when combined with a targeted assessment of the correct air flow, characterises an electrical current absorption for specific needs only.

There are different types of “air/material” separation used in trim suction plant systems. The PSM static separators, designed thanks to the extensive experience gained in these sectors, excel in the fact that they generate very low load losses (lower energy consumption required) compared to the use of common cyclones and have no internal moving parts (star valves) as frequently found on rotary condensers available on the market. As this is static equipment, it has the enormous advantage of not having internal elements subject to wear (sealing strips on the rotors blades, gear motors, etc.), which avoids jamming in contact with the conveyed material, whereby the different sizes or weights of the material often hinders correct functioning of the system.
This functionality is naturally supported by constant monitoring of the working conditions using completely automatic pressure control management systems.

The air which is still partially dusty and suctioned by the separators is conveyed inside self-cleaning sleeve dust removal systems, before being exhausted into the environment.
The treatment of the suctioned pollutant is based on some key aspects:
• the total knowledge of the pollutant, which makes it possible to determine the correct choice of filter media to use each time;
• the structural resistance;
• the safety devices to be adopted when used in environments with potentially explosive dusts, pursuant to a risk assessment as required by the Atex Directive (2014/34/EU) currently in force.
Our range of JKE dust collectors is based on a unique concept; in fact, it requires very low consumptions of compressed air thanks to an exclusive sleeve holder basket model and an effective counter-current cleaning system.
Complete customisation also guarantees countless solutions tailored to meet customer demands.

The processing scraps and trims suctioned and conveyed to the “air/material” separator are unloaded and automatically collected in continuous horizontal presses, stationary presses with containers or compacting presses.
Our sense of responsibility towards those who expect our solutions to operate in continuous cycle mode and in total synergy with the production lines, confirmed by the high number of plant system installed and the extensive experience gained in this sector, has allowed us to boost the loyalty of our know-how with partners manufacturing these extremely reliable systems.
A winning strategy of this kind is achieved when an enterprise does not limit the choice of its investments solely to direct production machinery, and its foresight is able to combine productive performance with a correct suction system that also becomes an integrated system of the entire production chain.