For processing of waste plastics Recycled materials are be conventional extruder used. Impurities are detected by separation in the melt flow (melt filtration) between the extruder and the extrusion die. Often one uses various separation techniques prior to achieve purity. Used Calibration Tables, used Extrusion Pipe Heads, used machines, used Pipe- Saws, Profile Saws
Youssef Extruder Systems - Office Cairo (Egypt) 002-01009662084
International trade in plastics processing machinery and down stream equipment
We offer machinery and equipment for extrusion, extruder systems and downstream equipment for profile, recycling, pipes, profiles and other machinery. We have second hand single screw extruder, twin screw extruder and compounding in stock. All machinery and equipment for the plastics extrusion.
Trust over 30 years experience in the trade of used plastic processing machinery
We buy and distribute plastic recycling machines pelletising plants and accessories for plastic processing.
There are new arrived used plastic processing machines!
Pelletising plants, extruders All machines are ready to operate, in excellent condition and ready to ship!
Complete large granulating plant, twin-screw extruder Werner & Pfleiderer ZSK 160 Ø 160 mm with filters, hot cutting and cooling path, flow rate = 3000 kg/h, Price: 150.000 €reserved!
Complete pelletizing plant manufacturer Erema (Austria) with filter, hot cutting and cooling path, minimum flow rate = 1000 kg/h, Price: 150.000 €reserved!
Youssef Extruder Systems - Offer other machines - Own projects for plastics processing
List of machines
Single screw extruder Tröster Ø 130 mm, 130/30 L/D , 125 kW, Price: 30.000 €
Pipe-saw SPEEDEX Ø 600 mm, Price: 35.000 €
Pipe Haul off, 10 bands up to Ø 1.100 mm, Price 35.000 €
Large amount of PVC pipe heads, total Price: 220.000 €
Projects for new factories
We will soon launch a new factory Noah-Plast (El-Obour City in Cairo) for manufacturing of:
LDPE granules - 1.000 t/month, internal requirements for the production of carrier bags for export
Soft PVC - 1.000 t/month, Soft PVC granulating wage for a German group
Manufacturing with modern German equipment W&F ZSK 160 und Know-how
In september 2014 starts our new factory Sophie-Plast near Dubai (V.A.E.)
Processing of film waste from Germany, Recycling of 600 t/Monat
In december 2014 starts our new factory Reema-Plast in Luxor (Qeft)
Production of carrier bags for the Egyptian market
Worth knowing about Plastic recycling
Because of the value of PET and the profitability of recycling are been developed for this high-tech sorting method. Those sorted shredded PET bottles which contain not only the main component PET, other plastics (film layer in the wall, lid). 2009 were it already 48.4% of all PET bottles collected for recycling in Europe. 40% of recycled PET has been used for textile fiber, 27% for films and thermoformed products, from 22% in new bottles and containers were manufactured and 7% were used for the production of PP-straps.
Youssef Extruder Systems - Used plastic processing machinery - About history
Plastics extrusion is a high volume manufacturing process in which raw plastic material is melted and formed into a continuous profile. Extrusion produces items such as pipe/tubing, weather stripping, fencing, deck railings, window frames, plastic films and sheeting, thermoplastic coatings, and wire insulation.
The first precursors to the modern extruder were developed in the early 19th century. In 1820, Thomas Hancock invented a rubber masticator designed to reclaim processed rubber scraps, and in 1836 Edwin Chaffee developed a two-roller machine to mix additives into rubber. The first thermoplastic extrusion was in 1935 by Paul Troester and his wife Ashley Gershoff in Hamburg, Germany. Shortly after, Roberto Colombo of LMP developed the first twin screw extruders in Italy.
In the extrusion of plastics, raw compound material in the form of nurdles (small beads, often called resin in the industry) is gravity fed from a top mounted hopper into the barrel of the extruder.
Additives such as colorants and UV inhibitors (in either liquid or pellet form) are often used and can be mixed into the resin prior to arriving at the hopper. The process has much in common with plastic injection molding from the point of the extruder technology though it differs in that it is usually a continuous process.
Blown film extrusion - Blow extrusion of plastic film
The manufacture of plastic film for products such as shopping bags and continuous sheeting is achieved using a blown film line. This process is the same as a regular extrusion process up until the die. There are three main types of dies used in this process: annular (or crosshead), spider, and spiral. Annular dies are the simplest, and rely on the polymer melt channeling around the entire cross section of the die before exiting the die; this can result in uneven flow. Spider dies consist of a central mandrel attached to the outer die ring via a number of legs, while flow is more symmetrical than in annular dies, a number of weld lines are produced which weaken the film. Spiral dies remove the issue of weld lines and asymmetrical flow, but are by far the most complex.
The melt is cooled somewhat before leaving the die to yield a weak semi-solid tube. This tube's diameter is rapidly expanded via air pressure, and the tube is drawn upwards with rollers, yielding the plastic in both the transverse and draw directions.
The drawing and blowing cause the film to be thinner than the extruded tube, and also preferentially aligns the polymer molecular chains in the direction that sees the most plastic strain. If the film is drawn more than it is blown (the final tube diameter is close to the extruded diameter) the polymer molecules will be highly aligned with the draw direction, making a film that is strong in that direction, but weak in the transverse direction. A film that has significantly larger diameter than the extruded diameter will have more strength in the transverse direction, but less in the draw direction.