single-screw extruder / grooved feed
Number of screws:
Min.: 500 kg/h (1,102.3113 lb/h)
Max.: 1,700 kg/h (3,747.8585 lb/h)
Min.: 45 mm
Max.: 90 mm
The ZEPHYR extruders are the evolution of the ZEUS gearless extruders and VEGA 37 L/D series, to set new standards in the extrusion of pipes.
The new extruder series in L/D 40, offer a large number of innovative solutions that distinguish it and make it one of a kind in the market of pipe production. The key point and guideline of the new project was to increase the output rate at lower melt temperatures and power consumption.
The result has been achieved thanks to the adoption of a spiral grooved feed bush and to further improvements in screw design. The new feed bush ensures minor friction, commonly generated by raw material transport, with subsequent increasing of the specific and total throughput. The further development in screw design, with optimisation and enhancement of torque and shearing elements, have improved the output but have also led to process the material at lower melt temperatures.
To complete the configuration and to meet the requirements for production efficiency the machines are equipped with torque or water-cooled motors (in this case with one or two steps gearboxes) and compact water-cooled inverters. These solutions combined with the mechanical features ensure outstanding power consumption levels (e.g. lower than 170 wh/kg for Zephyr 60.40 at 800 kg/h) but also low noise operation (< 74 Db), reduced workload for maintenance, higher efficiency within wide speed and load ranges, and faster dynamic response. The equipment also includes modules for a constant monitoring of power consumption and production cost calculation.