MACHINERY | CONTROL & INSTRUMENTATION
Righ: Conair’s Thermolator TW-T tempera- ture control unit helps to simplify operation and maintenance
with larger system controllers for troubleshooting and process improvement.” The system shows on-screen
graphic trending of essential extruder parameters, with visual tracking of tempera- ture, barrel pressure, motor speed and motor load. Speed deviation from setpoint is displayed, along with an extruder maintenance run timer and heater zone alarms – indicat- ing deviation, process tempera- ture, power failure, heater load and sensor break. Maximum, minimum and average motor load is captured during each production run. Recipe creation and storage allows repeatability
of multiple products on the same line. Other advantages 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. At the recent K2022 show, the company also gave a live demonstration of its DS Activ-Check – a platform that can be installed on both Davis-Stand- ard and Maillefer machinery. It comprises a suite of analytical tools, cloud and local data storage options, and process and equipment technology algorithms.
Below: Technotrans has launched a new oil temperature control unit
Simplified operations The Thermolator TW-T temperature control unit (TCU) from Conair includes several new features that simplify operation and maintenance. TW-T units sized at 3 hp and below also require 15% less floor space than earlier designs. All sizes (from 0.75 to 10 hp) have an open-back cabinet that allows air flow around pumps and other internal components while enabling visual maintenance inspection without having to remove cabinet panels. One new feature, automatic phase detection, causes an alarm to sound if the TCU is powered up using incorrect wiring. This means it is no longer necessary to look at pump shafts to determine rotation. The new model also has a dynamic maximum setpoint. Cool- ing-water supply pressure deter- mines the machine’s maximum setpoint, allowing processors to work around plumbing limitations. Low-
30 PIPE & PROFILE EXTRUSION | January/February 2023
pressure installations can now operate at lower temperatures, while higher water pressure gives access to a full high-end range of setpoint temperatures. In addition, a modulating cooling valve ensures consist- ent temperature control without valve changes or deadheading. TW-T units are also now equipped with Conair’s common
control platform – which delivers the same user experience regardless of equipment type. With the new TCU control, calculated
flow rates – or current readings from an optional integrated flow meter – are always available. Also, trend curves of historical readings can be used to help identify potential problems before they arise.
High temperatures Technotrans has launched a new oil temperature 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 now offer
an extensive portfolio of oil temperature control units with a temperature range of 130-350°C and a heating 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. The new unit has a microcontroller and a
membrane keypad with a seven-segment display.
CLICK ON THE LINKS FOR MORE INFORMATION: �
www.pixargus.com �
www.battenfeld-cincinnati.com �
www.bausano.com �
www.molecor.com �
http://vdma.org/plastics �
www.davis-standard.com �
www.technotrans.de �
www.conairgroup.com
www.pipeandprofile.com
IMAGE: CONAIR
IMAGE: TECHNOTRANS
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58 |
Page 59 |
Page 60 |
Page 61 |
Page 62 |
Page 63 |
Page 64
