The Company
PRT has always been at the side of its customers by engaging in the development of tailor-made solutions for the plastic recycling, which take the form of the design and construction of machines and complete plants.
The great ability to listen to needs; the availability to customers; the technical assistance and experience in the sector make PRT a reliable partner.
Do you have an idea to develop?
Do you want to replace a machine or do you need to modify a plant?We design and produce what you need.
Plants and systems
Extrusion Lines
For the production of granules in the recycling
and compound sector or hot granulation plants
Used to obtain plastic granules starting from post-industrial production waste, materials from post-consumer washing plants, densification plants and formulation of recipes for the compound.
The main users may be collection and recycling centers; companies manufacturing semi-finished or finished products in plastic material; companies dedicated to the production of granules with certain formulations or recipes.
What you get: granule for use in the plastic material manufacturing industry.
The materials that can be recovered as production waste can concern the activities of cast and bubble filming, press and rotational moulding, blow moulding, extrusion of pipes and profiles, extrusion of plates with flat head, extrusion of foams, thermoforming.
In particular: soles for footwear; pipes for transporting liquids and gases; rigid, extensible, biodegradable, polylaminate and polylaminate packaging; soundproofing and insulating panels…
Water and dry washing
and separation plants for plastic
Used to clean and separate plastic materials from post-consumer or post-industrial production waste.
The main users may be collection and recycling centres; dairy and meat processing industries; companies dedicated to the production of detergents and cosmetics, etc.
What is obtained: a clean and decontaminated material to be used in extrusion to obtain granules, semi-finished products or finished products by moulding.
Solutions for the recovery of materials from the agricultural and nursery world: roofing and mulching sheets in PE and PP; PE irrigation pipes; thermoformed tubs and trays for cultivation in PS and PET; trays in expanded polystyrene in EPS; boxes and bins for vegetables and fruit in HDPE and PP; PE and PP pots.
Solutions for the recovery of lead and acid-based electric batteries: allow the separation of the PP casings…
Storage and
bagging solutions
Used for the storage, mixing and packaging of plastics.
In washing plants are used for intermediate storage and final storage of films; fibers and flakes.
In granulation plants are used in the initial phase to store and dose the different types of materials and in the end of the line for the storage of granules.
The range is completed by bagging systems for filling big-bags or valve / open-mouth bags, up to palletizing with an anthropomorphic robot.
Agglomeration densification systems
Used to dry and recover post-consumer plastic materials or post-industrial production waste such as film, foil, expanded materials, monofilaments, fibers, non-woven fabrics in LDPE, HDPE, LLDPE, PP, BOPP, OPP, PC, ABS, PC ABS, PS, EPS, XPS, HIPS, XPE, PE PA, PP PA, PE PET, PE PETG, PE Al, PLA, PVDF, PA, PA 6.6, transparent, colored, additives, laminated, printed, metallized.
The main users may be collection and recycling centers; plastic washing companies; footage recovery centers; recyclers. What you get: a material with a high apparent specific weight, flowable and with low residual humidity that can be mixed, additived and extruded.
MACHINES
Water ring and air pelletizers
The hot die pelletizers differ mainly in water or in air operation. Granulation is carried out directly on the extrusion surface, consisting of a head or die, on which a blade cutting device acts.
It is possible to change and adjust the contact pressure of the blades on the surface of the die using mechanical or pneumatic systems.
These machines offer the advantage of an undiverted flow of the molten material between the extruder and the die, with a consequent reduction in pressure drops with the same flow rate, and the elimination of stagnation points in the processed product.
Internal cleaning is also easier, faster and more effective, especially when the type or color of the material to be granulated has to be changed frequently, considerably reducing the amount lost.
Capacity from 30 up to 2.000 kg/h.
Single screw extruders
Extruders with diameters from 30 to 200 mm.
Lengths and geometries of the screws vary according to the application.
Versions without degassing or with one or more degassing sections.
Ideal for recycling, compounding, die extrusion, profile extrusion, laboratory applications and special applications.
Force feeder and feeding units for extruders
The various models and the various configurations allow the introduction to the extruders of grinded plastics with very low apparent specific weights such as foams, films, fibers and flakes.
These solutions also allow to mix materials with different characteristics, making an excellent solution in the recycling and compounding sector.
Capacity from 50 to 2.000 kg/h.
Washing and separating tanks
The different models of tanks are used for pre-washing, washing plastics from pollutants, or for separation according to the specific weight of the materials, using simple water or water with additives
The configurations are multiple, characterized by the geometries, the dimensions and the type of handlers, separators and mechanical extractors.
Capacity from 250 to 2.000 kg/h.
Washing, drying, dedusting centrifuges
The different models with horizontal and vertical axis are used in the cleaning and drying phases of both wet and dry materials.
The dimensions and configurations of the rotors and grids differ according to the fields of application and flow rates.
Capacity from 250 to 2.000 kg/h.
Water grinders
These machines are specially designed for their application in washing systems, exploiting the dual function of volume reduction and cleaning with water at the same time.
The sizing of the grinding chambers, the configuration of the rotors and the construction materials used are chosen according to the plastics to be processed and the hourly capacities.
Capacity from 200 to 2.000 kg/h.
Weighing bagging machines
Semi-automatic machines used for filling valve and open mouth bags, designed to avoid contamination between products.
Easy cleaning of the parts in contact with the product.
Ease of handling between different production lines.
Electronic weighing system with MID approval.
Work cycle programming up to 99 recipes.
Quick preselection of three recipes via selector.
Automatic compaction of the product during the filling phase.
Simple adaptation to the size of the bag without the need to use spanners or other tools.
Digital display of net or gross weight at the end of filling.
Statistics of quantities processed.
Diagnostics with reporting of any anomalies.
Possibility of interfacing with other machines for product and bag flow control.
Agglomerators densifiers
Used in the grinding and agglomeration of laminates, fibers and thermoplastic films.
The operating principle is based on the transformation of the mechanical energy, used to grind the material, into the thermal energy necessary for plasticization.
The manufacturing process takes place in batch cycles.
The product obtained is in the form of densified macro particles, free of humidity and easily movable.
Capacity from 50 to 1.000 kg/h.
Maintenance assistance
overhaul repair
Thanks to its long experience and complete knowledge of machines and plants for processing plastic materials, PRT boasts the possibility of offering an excellent service to its customersin terms of technical assistance and in terms of machine maintenance, overhaul and repair..
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we will contact you to discuss your project together.
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