Green technology for pipe and profile extrusion

After a successful K show, battenfeld-cincinnat now introduces its new developments to the Russian market at Interplastica in Hall Forum, FB48. The focus will be on pipe and profile co-extrusion with the proven solEX, twinEX and conEX extruders and a range of new pipe dies for multi-layer applications, as well as on thermoforming sheet extrusion.

battenfeld-cincinnati offers its customers complete line solutions, optimized for energy-efficiency, long service life and high performance. battenfeld-cincinnati also offers upgrades for existing extrusion equipment to optimize energy consumption and improve wear protection.

Extruder concepts for high output and efficient processing

The proven solEX single-screw extruder series is designed for high-performance HD-PE and PP pipe extrusion, with outputs from 240 to 2,200 kg/h, depending on application and material. The twinEX parallel twin-screw extruder series has a processing length of 34D and offers outputs between 115 and 2,500 kg/h, depending on application and material. The conEX conical twin-screw extruder series covers an output range from 30 to 330 kg/h.

A variety of co-extrusion solutions are available from battenfeld-cincinnati for both pipe and profile extrusion. For profiles, the company introduced a piggyback set-up at K2013 that places the co-extruder on top of the main extruder. It is extremely space-saving and user-friendly, featuring only one control cabinet for both extruders and one central plug to connect the die.

New equipment for PVC and PE multi-layer pipe extrusion

At K 2013, battenfeld-cincinnati introduced two new die models for PVC processing, the spider 200-3 (dimensions from 32 to 200 mm) and the spider 400-3 (dimensions from 110 to 400 mm), with throughputs from 350 to 1,200 kg/h. The dies feature excellent layer thickness distribution with narrow tolerances as well as short dwell times and can be easily converted for 2-layer applications.

Another new pipe die is the helix 63-5 VSI, which is laid out for 5-layer PE pipes with EVOH barrier in diameters of up to 63 mm. The die offers a short dwell time of the EVOH inside the die and optimal distribution of thin layers with extremely narrow tolerances. Due to its modular design it can be converted into a 3-layer pipe die and easily disassembled for cleaning.

battenfeld-cincinnati also showed its new 4-layer pipe die with proven EAC (efficient air cooling) internal pipe cooling combined with a new, innovative "active melt cooling system". The helix 630-4 VSI-T+ reduces the overall length of the line and ensures high product quality by significantly reducing sagging. This makes it possible to produce pipes with even larger wall thicknesses at reasonable cost.

In addition, battenfeld-cincinnati introduced its new, flexible RTA 250+ pipe cutter at the Open House during K. The RTA 250+ can cut both PVC and PE pipes with diameters between 32 and 250 mm and wall thicknesses of up to 50 mm at a maximum speed of up to 30m/min.

High performance for thermoforming sheet extrusion

battenfeld-cincinnati's Packaging Division showed the Multi-Touch roll stack in production for the first time at the Open House in October 2013. The Multi-Touch roll stack impressed visitors with absolutely even cooling and calibration of the sheet on both sides with extremely narrow thickness tolerances. This is possible due to the innovative set-up with two large chill rolls followed by five post-cooling rolls.

In 2013, battenfeld-cincinnati also received an order for the fifth pelletizing line from Metal-Plast, Świebodzice (Poland), one of the largest European PVC window re-pelletizing companies. "We have been operating with extrusion equipment from battenfeld-cincinnati for almost 8 years", explains Metal-Plast's Managing Director. "After also purchasing some equipment from other suppliers and testing it under production conditions, we came back to the technology from battenfeld-cincinnati every time. We were particularly satisfied with the equipment's long service life under tough production conditions and its easy operation." The complete line is equipped with a BC 2-92-28V twin-screw extruder and reaches a regrind output between 500 and 800 kg/h.