MachineBuilding.net Technical Articles Index
UKCA Marking of Machinery and the implications - updated
Derek Coulson, a Technical Advisor with Safe Machine Ltd, outlines his views of the proposed UKCA Marking of Machinery, which could replace CE Marking to the Machinery Directive when the UK leaves the EU following the current transition period ending on 31 December 2020.
Flexible impeller pumps and their advantages
Original equipment manufacturers (OEMs) often require versatile, cost-effective, compact and reliable pumps for their equipment. All these qualities are often very difficult to find in one pump type, and it is in these situations where flexible impeller pumps shine.
The lubrication options for ultra-low-friction bearings
The F1 in Schools competition sees students from around the world compete to design and race the fastest miniature car model. The UK took home the world champion title at the 2019 world finals in Abu Dhabi, but what can design engineers learn from this success? Here, Chris Johnson, managing director at specialist bearing supplier, SMB Bearings, explores the design options for ultra-low friction applications.
Should I choose a collaborative or cooperative robot?
Robots are becoming increasingly easy to use, more economical and suitable for a higher number of industrial applications. As human operators and robots increasingly share a common space in the manufacturing environment, the choice between a collaborative or cooperative machine is naturally being given more consideration. Barry Weller, Product Manager at Mitsubishi Electric, looks at the key features of collaborative and cooperative robots and how to quickly identify the best system for an intended application.
Hose re-ending: the fallacies behind ‘saving a bit of money’
Hose re-ending is a very risky business. When you put a cost on downtime, maintenance and safety, how much money do you really save?
Achieving functional safety within drives without using encoders
What is the goal of functional safety? To minimise the risks posed by technical equipment to humans and the environment. Machine tools, for example, can endanger operators and technicians with tools that rotate at high speeds. Drive technology that ensures the required safety functions without encoders offers the user various advantages, says Mark Checkley of KEB.
How to choose the right process control valves
Modern process control valves offer a wide range of features and benefits for industries that require precise control over fluids, steam and other gases. With so many control valves on the market, it is important to establish the features that will deliver the most cost-effective design for a particular application. Damien Moran, Field Segment Manager, Hygienic – Pharmaceutical at Bürkert, looks at some of the basic differentiators as well as some recent design developments.
How to select bearings for extreme operating environments
Many engineers have at least a basic understanding of rotating bearing technology, and in some cases have become experts in the field as various projects have come and gone over the years. Not a few design engineers will have hands-on experience too, perhaps replacing wheel bearings on a car, or headstock bearings on a motorcycle. But what happens when the talk – and the project – turns to specifying bearings that must survive in a constant 473degC for 3 hours, and then continue to perform faultlessly as the temperature plummets to –219degC for another 3 hours? And for equipment which is going into in space, bearing materials must be well protected against corrosion, but why? What does one need to consider first? Materials technology? Rotating mass? Temperature capability? Lubrication? If your application involves – or might include at some stage in the future – a need to understand how to select and specify bearings that can survive in extremes of heat, cold, or space, bearing industry expert Mike Page of Carter Manufacturing Ltd provides a summarised oversight.