MACHINERY | SCREWS AND BARRELS
per side and hardness values over 60HRc. Carbi- deX Proline formulations deliver like-new perfor- mance and at least two to three times longer equipment life, says the company.
Twin-screw expansion Meanwhile, US-based machinery manufacturer Entek is close to completing the first phase of a new 30,000 sq m facility at Henderson in Nevada. Around US$15m has been invested in the facility, which the company says will allow it to develop its wear parts division – which makes replacement screws and barrels for both Entek and non-Entek twin-screw extruders.
Entek is also developing its largest twin-screw
Above: Erema subsidiary 3S demonstrated its screw production technology at K2022
injection moulding applications. The company has established a European subsidiary, Extreme Coatings GmbH, and signed a licensing agreement with engineering services business FS Maschinenbau, which will provide engineering and manufacturing services. Increased capacity in Europe should reduce lead times and delivery costs, and act as a local supply for the company’s customer base in Europe, says the company. The new 15,000 sq ft facility will add to the company’s existing operations in India, South Korea, and Chile. ‘‘Market demand for our wear-resistant coatings has shown exponential growth in several key application areas,” said Scott Caplan, executive vice president of Extreme Coatings. “We’ve expanded our global footprint to break the logistical logjam and ensure stable supply to all key European regions.” Extreme Coatings‘ thermal spray technology applies wear- and corrosion-resistant CarbideX protective coatings – based on tungsten or chro- mium carbide – to new or repaired feedscrews. The process provides a crack- and porosity-free coating within thicknesses ranging from .004in to .017in
extruder to date – a 160mm machine that is expect- ed to be ready in Q4 2024. Though Entek’s current largest extruder is a 133mm model, it produces replacement parts for extruders up to 250 mm. “We’ve been making replacement wear parts for this size of machine for almost 20 years for other brands of twin-screw extruders,” says Linda Campbell, VP of extrusion sales at Entek. “We have seen the market demand for this size and recog- nised the gap in our machine line-up.”
Energy savings Germany-based Extruder Experts recently helped a customer reduce energy consumption in its extru- sion process – in part due to changes in screws and barrels.
Extrusion systems consume lots of power,
through a combination of drives, high heating capacities, screw designs and cooling systems that dissipate energy, says the company. With rising energy costs, many extruder operators have been forced to deal with this directly. Extruder Experts helped its customer carry out a number of energy-saving ideas. To improve energy efficiency, it changed from heating trays to heating cartridges. In process control, optimising the
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IMAGE: EREMA
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