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Significantly longer service life for highly abrasive materials
Ceramic rotor for RD dispenser

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Plant Construction, Engineering & Components
For comparison a hard chrome plated stainless steel rotor of the series RD dispenser from Viscotec. (Picture: Viscotec)

For decades, ViscoTec has specialized in difficult dispensing applications within various industries. The dispensing technology specialist focuses its day-to-day optimizations of the product portfolio according to the needs of its customers. The proven stainless steel rotor has been further developed for the reliable dosing of abrasive fluids such as thermally conductive one- and two-component gap fillers, one-component heat-conducting pastes or highly filled two-component adhesives. The new version in the form of a ceramic rotor enables significantly longer service lives of this core component of the dispensing system. The ceramic rotor is fully compatible with the dispensing and mixing systems of the ViscoTec RD dispenser series. It can therefore be used in both one-component and two-component systems.

Examples of applications of the rotor, which is especially suitable for highly filled materials, are:

  • Temperature management of sensitive components in the electronics industry
  • Thermally conductive potting applications
  • Dispensing of solder pastes
  • Temperature management in E-Mobility manufacturing

In order to further increase the service life of the already proven dispensers for highly abrasive liquids and pastes, the performance of a wide variety of ceramics was determined in numerous tests. The results showed clear differences depending on the type. The ceramic rotor incorporated in the portfolio on the basis of these findings enables a significant increase in the service life of the dispensing system. First long-term tests show an increased service life by a multiple than with conventional hard chrome-plated stainless steel rotors – the ceramic rotors did not  show any signs of wear until the end of the tests.

The well-established dispensing performance remains unchanged. There is no difference in the geometric dependencies. This guarantees a simple conversion of existing systems to the ceramic rotor using ViscoTec dispensing technology. The dispensing settings remain identical.

The rotor assembly is available in two versions, depending on the requirements of the material to be dispensed: either as a ceramic rotor with hard chrome-plated drive shaft or as an all-ceramic version where both the ceramic rotor and the drive shaft are made of ceramic. Which version makes sense in the respective application is determined by the sales department together with the customer.

The first ceramic rotors are already integrated into existing dispensing systems and are impressive. With a triple Vickers hardness, the surface is considerably harder than that of the stainless steel rotors. When working with highly abrasive materials, this results in significantly lower wear and therefore longer service life. Longer service life means longer maintenance intervals and consequently less downtime of the production line. And more profit in the long run.

Measurement, Instrumentation, Control & Automation Plant Construction, Engineering & Components Safety & Security Videos

Customized Solutions
Tailor-Made in Many Ways

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Pepperl+Fuchs

Pepperl + Fuchs has developed an individual sensor solution for the company montratec based on innovative Pulse Ranging Technology, or PRT. Modifications to the design, hardware, and software have transformed a portfolio sensor into a solution that is tailored precisely to the shape of the shuttle.

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Biotechnology Measurement, Instrumentation, Control & Automation Plant Construction, Engineering & Components

Power Supply Product
1U half-rack programmable DC power supplies deliver 1,500W

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Power Supply Product 1U half-rack programmable DC power supplies deliver 1,500W
Picture: TDK

TDK Corporation (TSE 6762) announces the introduction of the GH1.5kW series of 1,500W rated, 1U high half-rack wide, programmable DC power supplies. This latest extension to the TDK-Lambda Genesys+ series has the same functionality and programming as the standard full rack 1.7kW to 15kW models. Applications include bench-top or rack mount laboratory use as well as component, automotive and aerospace testing, semiconductor fabrication, solar array and battery simulation, plating and water treatment.

Ten models are available rated at 0V to 10V, 20V, 30V, 40V, 60V, 80V, 100V, 150V, 300V and 600V, with output currents of 0-2.6A to 0-150A. All models are capable of operating in constant voltage, constant current and constant power modes. Up to four power supplies can be connected in parallel with an advanced master/slave system that provides dynamic load response and ripple and noise characteristics comparable with that of a single power supply. The input voltage range is 85 to 265Vac facilitating global use.

Excluding the busbars, the GH1.5kW measures 214mm wide, 43.6mm (1U) high and 441.5mm deep. Two units can be mounted side by side in a standard 19” rack, with the GH/RM option kit. The Genesys+ half rack units weigh less than 3.5kg for easy movement or installation. A blank front panel option (with no metering or control functions) is available where user access is not required or needs to be restricted. Snap-on dust filters can also be added to restrict airborne contamination.

Programming is standardised across the Genesys+ series by either utilising the front panel controls, remotely via LAN (LXI 1.5), USB 2.0 and RS232/485 communications, or by using the isolated analogue control and monitoring (0-5V, 0-10V) which are provided as standard. Optional interfaces include a choice of GPIB (IEEE488.2) and the Anybus CompactCom interface platform for EtherCAT, Modbus-TCP and other interface options as they are released. Software drivers, a waveform creator and a virtual front panel GUI are provided in the software package. Safety features are standard in all GENESYS+™ power supplies, providing Safe/Auto Re-Start, Last Setting Memory and built-in protection functions. Control of voltage and current slew rate, internal resistance simulation and display brightness control are all standard features.

The five year warranty series is safety certified to IEC/EN/UL 60950-1 (61010-1 pending), is CE marked to the Low Voltage, EMC and RoHS Directives and is compliant to the industrial IEC/EN 61203-3 standard for conducted EMI, radiated EMI and EMC immunity.

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Biotechnology Measurement, Instrumentation, Control & Automation Plant Construction, Engineering & Components

Suspensions, emulsions, powders and bulk solids
Fast analysis of particle shape and size

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Particle Sizer ANALYSETTE 28 ImageSizer for dry measurement of powders and bulk solids. (Picture: Fritsch)
Particle Sizer Analysette 28 ImageSizer for dry measurement of powders and bulk solids. (Picture: Fritsch)

The Fritsch Analysette 28 ImageSizer for dry and wet measurement is the ideal Particle Sizer for all applications that require accurate and reproducible measuring results for both particle shape and size. The optical process of Dynamic Image Analysis provides results for a wide measuring range, delivers multiple shape parameters and evaluation possibilities for particle size. The measuring time depending on the sample quantity, is under 5 minutes. And the result is available immediately.

Your advantage: Great flexibility for different measurement tasks for particle sizes of 20 µm – 20 mm in quality control, research and laboratory – and is a very easy and cost-effective alternative to sieving.

Easy wet measurement of suspensions and emulsions

The Analysette 28 ImageSizer is in combination with the corresponding wet dispersion unit ideal for measurement of particle shape and size of suspensions and emulsions.

Wet dispersion is particularly suitable for fine particles, poorly flowing, fine-agglomerating or sticky materials, which do not react in water or other liquids.

Your advantages

  • Extra wide measuring range of 20 μm – 2.8 mm
  • Strong, freely adjustable ultrasonic power for deagglomeration
  • Extremely quiet dispersion with strong pumping power
  • Benzine, alcohol and many organic solvents can also be used as suspension liquid as a standard feature
  • Automatic rinsing cycle
  • No dead space in measuring and rinsing circulation system
  • Fast and consistent cleaning

Efficient dry measurement of powders and bulk solids

The Analysette 28 ImageSizer is the ideal Particle Sizer for fast analysis of particle shape and size of dry, free-flowing materials. Via the optical analysis of the particle shape and particle size, you can identify damaged particles, contaminates, agglomerates or oversized and undersized particles accurately and fast and view them completely uncomplicated in single images.

Your advantages

  • Extra wide measuring range of 20 μm – 20 mm, individually adjustable
  • 3 telecentric lenses are available
  • Up to 75 images per second
  • Agglomerates are preserved
  • Practical Clean Design of the measuring chamber
  • Optimal number of particles due to automatic adjustment of the feeder
  • Easy handling

State-of-the-art, simple and fast evaluation via Cloud and Gallery

The evaluation of the measuring results is uniquely simple with the Analysette 28 ImageSizer. The evaluation software ISS displays each recorded particle clearly as a data point in the immediately available Fritsch Cloud as well as in the Fritsch Gallery. You freely choose which statement is of interest to you: for example the Sphericity in regards to the Minimum Feret Diameter, the aspect ratio, applied on the porosity, or the convexity as a function of the particle Cross Section. Or display the particle size distribution as a cumulative curve, as a bar chart or in a table form.

Each particle can be clicked individually

The state-of-the-art of uncomplicated evaluation: For fast single image viewing, each individual particle can be opened directly with a mouse click from the clearly arranged Fritsch Cloud. The really important information for you about the morphology will be shown by the position of the data point in the Cloud. Without time-consuming search, you can immediately analyse, evaluate and delete individual selected particles. All available size and shape parameters are automatically displayed.

 

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