TECHNOLOGY | MACHINERY CONTROL
Control system uses HMI to improve functionality
Davis-Standard has introduced its DS-XEL control system. The system, which
replaces mature discrete controls, implements high-performance HMI features to meet the data and process information needs of modern manufac- turing, says the company. It focuses on active functions for a better operator experience and improved connectivity, according to the company. The DS-XEL will be the new standard control for Davis-Standard’s Super Blue and HPE extruder lines and is compatible with the DS Activ-Check cloud-based platform. It is also available as an upgrade to existing extruder controls. “This controller merges
the latest PLC and HMI offerings to enable an operator-friendly package
ANCILLARIES Heating up to high temperatures
Technotrans has launched a new oil tempera- ture control unit. Its Teco CT 130 Base 60 is compact and has high power density – offering temperatures up to 130°C and a heating capacity of 6 kW. Customised versions go up to 400°C and have a heating capacity of 750 kW “By adding to our product series, we
IMAGE: TECHNOTRANS
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now offer an extensive portfolio of oil temperature control units with a tempera- ture range of 130-350°C and a heating
FILM & SHEET EXTRUSION | January/February 2023
capacity of 4-54 kW,” said Ralf Radke, head of the temperature control sector of Technotrans. The unit has a recirculation rate of up to 60
litres/minute. Thanks to its integrated ‘longlife’ stainless steel heating cartridge, heat is transferred in a loss-free manner. In addition, multi-voltage variants from 400 to 460 V – as well as dual-frequency versions for use in 50 Hz and 60 Hz networks – are also available. A large heat exchanger surface provides a cooling capacity of up to 30 kW. �
www.technotrans.de
www.filmandsheet.com PUMPS Maag buys Witte
Pumps Maag has acquired Witte Pumps & Technology, a German developer and manufacturer of gear pumps and aftermarket parts. Following the pur-
IMAGE: DAVIS-STANDARD
with greater attention to detail,” said John Clemens, director of extrusion controls at Davis-Standard. “It also incorporates key features only available with larger system controllers for troubleshooting and process improvement.” The system shows
on-screen graphic trending of essential extruder parameters, with visual tracking of temperature, barrel pressure, motor speed and motor load. Speed deviation from setpoint is displayed, along
with an extruder mainte- nance run timer and heater zone alarms – indicating deviation, process tempera- ture, power failure, heater load and sensor break. Recipe creation and
storage allows repeatability of multiple products on the same line. Other benefits include process alarm logging, real-time and historical data trending, auto and self-tuning of heat zones for quick die changes, and an on-screen display of individual zone heaters. �
www.davis-standard.com
chase, Maag will integrate Witte’s gear pump operations with its own to create a combined Gear Pumps business unit. This will be led by Witte Gear Pumps managing director and former owner Sven Wieczorek. “The acquisition of
Witte represents a major step in making Maag the go-to partner for our customers’ most critical and demanding gear pump needs,” said Ueli Thürig, president of Maag. He said the move
would extend the group’s product portfolio and geographical coverage. �
www.maag.com �
www.witte-pumps.com
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