Instumentation • Computing • Control
Configurable DC motors and gearheads T
he Maxon DCX series is being expanded with two new DC motors. The GPX 22 gearhead is now
available in a reduced noise level version and with ceramic axes for longer life expectancy. In addition to the maxon DCX 10L, a new
shorter version is available, the maxon DCX 10S. Like all motors in the DCX series, this brushed DC motor excels through high power density and low vibration. The DCX 10S exceeds the 1 mNm threshold during continuous use. With its mechanical output power of up to 1.4 W with a 10 mm diameter, it is a real powerhouse.
Regardless of whether this electric motor is equipped with sintered bearings or ball bearings, the DCX 10S works at a whisper of only approx. 35 dBA*. The DCX 22L is the new, larger
brother of the DCX 22S short version. This brushed DC motor, with a diameter of 22 mm, even outperforms the existing maxon RE 25. With the DCX 22L the same power is achieved, yet with 30 per cent less volume and weight. The GPX gearhead series is
Fig. 2. Configure, combine and order DC motors (maxon DCX), gearheads (maxon GPX) an encoders (maxon ENX) that match individual needs.
Fig. 1. The new configurable products: DCX 10S, DCX 22L, GPX 22 (available as low-noise and ceramic version).
also being expanded with two new variants: The GPX 22C is an optimised version of the GPX 22. The improved performance data and life span were achieved by using ceramic axes. The result is approximately 20 per cent higher torque, although the size is the same. Another new member in the maxon GPX family is the low-noise version of the GPX 22. The GPX 22LN has special plastic planet
New gasket to improve heat exchanger performance
F
lexitallic’s Applications Engineering Manager, Dene Halkyard, has overcome customers’
complex technical issues with poor performing sealing heat exchangers, not addressed by any other engineering company, with an innovative new gasket, Change’ The Change gasket delivers, says the
company, a more dynamic seal, with superior compression and recovery than any other gasket on the market*. Change can be supplied with Thermiculite,
PTFE, graphite filler and a wide variety of other metals, making it suitable for an extensive range of applications. Dene Halkyard said: “We developed a unique sealing construction and new welding process to engineer Change’, which was created in direct response to customers’ long-term problems. “Change has out-performed all alternative
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gaskets we have tested to date, including our own, and now we are seeking out customers with troublesome applications to challenge Change to dramatically improve performance. “Efficiencies in production methods have also enabled this new technology to be a cost- effective solution for customers.” The varied product offering of The Flexitallic
Group now includes spiral wound gaskets, semi- metallic gaskets, RTJ gaskets, Kammprofiles, sheet gaskets and dynamic and static packings. ●
* based on Radial Shear Testing( RAST ), thermal cycling and leakage tests: Modified Shell Test, ROTT and Compression testing.
For more information ✔ at
www.engineerlive.com/iog
Flexitallic is based in Cleckheaton, UK.
www.flexitalliceu.co.uk
gears in the input stage that reduce operating noise, which mainly occurs in the input stage, by about 5dBA. All configurable DC motors, gearheads and
encoders of the maxon DCX program can be ordered online. After only 11 working days, the drive systems are ready to be shipped from Switzerland. Detailed product data can be viewed online immediately, and 3D data for the configuration is available for downloading. ●
For more information ✔ at
www.engineerlive.com/iog
Maxon Motor AG is based in Sachseln, Switzerland.
www.maxonmotor.com
Laser diffraction particle sizing in drilling muds
W
ith a dynamic range spanning 0.01 to 3500 microns and exceptional sample dispersion
capabilities, the Mastersizer 3000 delivers particle size measurements for water- and oil- based muds. Mastersizer software provides automatic data
quality checks that guide the user towards good measurements, particularly important in routine QC where rapid, robust measurement is essential. Malvern has added the Mastersizer 3000E, an
entry level laser diffraction particle sizing system. It has a measurement range of 0.1 to 1000 microns and is offered with semi-automated wet dispersion units. The performance of the Mastersizer 3000E can be extended over time, with add-on software packages providing users with access to automated dispersion units and the advanced analysis. ●
For more information, visit
www.malvern.com
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