Fein is now offering a new grinding product range, revealing new safety and performance features to meet the latest user needs. Following the launch, power tool operators working across disciplines will be able to choose from the extended range of over 40 grinding tools, with corded and cordless options available. The range arrives as a result of first-hand industry feedback, to provide a product suitable for every application, including angle grinding, die grinding and stainless-steel processing, for example.

The portfolio includes the launch of the CG 15 compact angle grinder, the first of its class to feature a fully encapsulated, brushless Fein PowerDrive motor. The tool’s 1500 W motor and notable power-to-weight ratio allow user to operate with efficiency and endurance, reports Fein. Furthermore, the angle grinder requires fewer wearing parts, has longer service intervals and incurs lower maintenance costs throughout its life.

Fein’s new CG 15 grinder also offers users extensive protection through a variety of safety features driven by user feedback, including restart protection, kick-back check, jam monitoring and an efficient brake which brings the tool to a stop in less than 2 seconds.

Another tool in the range is the Protago high-safety angle grinder, created in collaboration to set new safety standards in the industry. Bouygues, the construction giant, had previously banned the use of compact angle grinders following a serious accident. However, together with Fein, the teams developed the Protago with safety features that almost fully eliminate the serious risks associated with improper operation.

The Protago, in addition to nine other tools in this launch, is now available on the 18 V AMPShare battery platform, powered by Bosch.
For further information www.fein.com/en_uk

With the increasing regulatory pressure on PFAS (per- and poly-fluoroalkyl substances), which might impact the future use of fluorinated solvents in industrial parts cleaning, many companies are racing to find direct drop-in replacements. Safechem, a chemical service company and solvent risk management expert, offers a long-term perspective – the use of modified alcohols in an airtight degreaser as a future-proof cleaning solution.

Safechem’s modified alcohol solvents – Dowclene 16-series and Dualene 1601 S – are chlorine-free, bromine-free and fluorine-free. Produced synthetically, modified alcohols are stable in temperature and pH. With both non-polar and polar properties, they can effectively clean off non-polar contaminants such as oils and greases, just as effectively as certain polar contaminations like cooling emulsions or solids such as particles and abrasives.

Modified alcohols have a flashpoint and application must therefore take place in vacuum closed cleaning machines, or so-called airtight/airless degreasers. Users currently operating open/semi-open equipment are likely to see the initial equipment expenditure as a hurdle. They might also be apprehensive about changing their cleaning process altogether.
However, compared with the high consumption of fluorinated solvents (PFAS-free or not) and their running costs due to emissions and drag-out losses, a closed cleaning machine can practically pay itself back due to the many cost savings it enables – in addition to increased process safety and minimised environmental impact.

Put simply, Safechem says that solvents used in closed machines are much cheaper than fluorinated products. Furthermore, solvents can be recycled and reused much more efficiently thanks to the built-in vacuum distillation unit. Another advantage is the potential to extend solvent lifespan by using stabilisers, resulting in less consumption and fewer bath exchanges.
For further information www.bit.ly/42Bgzpa

To function properly and last for a long time in the human body, orthopaedic implants require precisely defined finishes on different surface areas. For the targeted surface finishing of femur components at its new high-tech plant in Penang, Malaysia, Smith+Nephew is utilising two manufacturing cells, each containing three R 6/1000 SF drag finishers from Rösler.

The drag finishers undertake process stages that include pre-grinding with ceramic media, pre-polishing using plastic media and dry polishing with a specially prepared organic polishing medium. To prevent any disruptions of the surface finishing operation, all drag finishers are suitable for running the dry polishing process. Furthermore, four of the six drag finishers are suitable for the pre-grinding and pre-polishing as well as the dry polishing operation.

The drag finishers consist of a processing bowl with a diameter of 1000 mm and a carousel with six rotary spindles. These are equipped with specially designed workpiece fixtures, to which the femur components are mounted.

“We’re now able to process 18 femur components in one single batch compared with only 12 the past,” says Jürgen Preiser, senior manufacturing engineer at the plant. “This increases our throughput by around 50%, a truly remarkable productivity boost.”

The plant also has two fully automatic Z1000 centrifuges, equipped with the ‘Advanced’ digital process water management system from Rösler Smart Solutions, which ensure that the process water is reliably and efficiently cleaned and recycled. Another indispensable contribution towards the stability of the finishing operation is the continuous monitoring and classification of the grinding and pre-polishing media.
For further information www.rosler.com

As well as showcasing two new-to-the-UK Walter Helitronic tool grinders – the Helitronic Mini Plus and the Helitronic G 200 – Walter Ewag UK’s open house (Warwick, June 27-29) will host daily series of workshops/demonstrations of some of Walter’s money-saving and user-friendly technologies for fast and effective tool production and regrinding, as well as inspection.

The three-day event will highlight: rewards of integrated measuring; benefits of non-contact laser contour checking; remote service; and how Helitronic Tool Studio software can simplify and speed up grinding/erosion times.

Walter heralded a step change in the fully automatic measurement and digitisation of tools when it launched the Walter 3D laser sensor, which enables the Walter Helicheck Pro and Plus tool measurement machines to scan with four times the resolution than previously possible and to process that data four times faster.

Suitable for inspecting high-performance tools where cutting edge geometry, pitch and spiral pitch vary widely, the 3D sensor can replace two separate machines traditionally used for measuring such tools – perhaps a combination of conventional and laser checking. Easily and quickly programmed using wizard routines, with resulting short set-up times, the 3D sensor effectively ‘visualises’ the workpiece as a point cloud (in differing formats) and enables various measurements to be undertaken on the 3D image.

When the resulting image is ‘placed’ on the tool’s three-dimensional design drawings, or a master part, any deviations are clearly visible (via the integrated 3D Viewer) as 3D comparisons of point cloud and target model, including surface reconstruction.
The result is that tool measurement has never been more accurate or faster, reports the company.
To register call Phil Morris on 01926 485047, 07714 826832

With the introduction of the Euro 7 emission standard, the particulate matter values for all new motor vehicles are set for drastic reductions, regardless of the type of drive. This means that the focus is also increasingly on brake systems. The solution is brake discs with low-wear hard coatings, because less wear means less particulate matter. Against this background, Nagel Maschinen- und Werkzeugfabrik GmbH in Nürtingen is expanding its portfolio to include systems for brake disc coating.

The core module for applying hard coatings to brake discs – usually cast brake discs – is a laser cell, which operates according to the high-speed LMD process, and a double-sided surface grinding machine for finishing. The laser coating machine from Nagel allows workpiece changeover times of less than 2 seconds, meaning that the powder flow, which is fundamentally sensitive to pressure fluctuations and acceleration, does not require interruption. The company measured powder efficiencies of over 94% in the coating process.

Nagel uses a double-sided surface grinding machine with high rigidity, ensuring highly precise and reproducible machining. The machine processes brake discs with an outer diameter of up to 450 mm. Depending on the coating system and customer requirements, Nagel Group says it has the right solution. For example, it is possible to grind a typical mid-range brake disc on both sides in approximately 50 seconds. Where required, a specially developed non-contact air measurement system monitors the machining process in operation.

In addition to process development for a wide range of hard material coatings, including grinding, Nagel will soon also be offering options for the production of coated brake discs for homologation at its Nürtingen plant.
For further information www.nagel.com