MachineBuilding.net Technical Articles Archive
Archived Technical Articles
Corrosion-resistant bearings for water power applications
In addition to wind and solar power, water power will make a significant contribution to future supply of renewable energy. This applies to conventional applications such as hydro-storage plants, pumped-storage plants and fresh water river systems, as well as the latest marine water power plants such as tidal and wave energy systems.
Why does my instrument need calibrating?
Instruments are used to measure and monitor processes, including component manufacture, throughout all industries. In order to maintain confidence in these processes any instruments which are used to measure or monitor such processes should be calibrated.
How to select correct IP ratings for electrical enclosures
Manufacturers of enclosures are required to provide an IP rating for every product, which allows designers and installers to ensure that they select the correct product for each application. But what exactly do all the numbers mean and how can you be sure you have made the correct choice? Chris Lloyd, Managing Director for Spelsberg els UK, offers an insight into IP ratings and how it affects product selection.
Torque limitation for heavy plant protection
Protecting machinery and systems against expensive failures and costly downtime is critical in today’s competitive market, but what are the relative benefits of electrical options versus mechanical in high-torque applications? Andrew Bargh of Bibby Turboflex, part of Altra’s Couplings Division, looks at the technologies available to protect machinery against overloads.
Fixings for fixed machine guards - further clarification
Jeremy Procter provides further clarification of the requirements relating to fixings for fixed machine guards (the author is the Managing Director of Procter Machine Guarding, a Member of BSI's MCE/3 committee, and the former Convenor of the European Standards Committee CEN TC114 WG11 responsible for Machine Guards).
How to cascade safety switches and comply with EN ISO 14119
Dr Martin Kidman, a Safety Specialist at Sick (UK) explains the implications of EN ISO 14119 and how there is now an easier way to implement cascaded safety switches and sensors in the light of the standard, thereby benefiting machine builders through lower costs, reducing cabling and improved diagnostics.
Are inverter-rated motors essential: Yes or No?
There are documented cases of motors that have given 20 or 30 years’ sterling service only to fail within hours of being fitted with a variable speed drive which was meant to save energy and protect the motor from high load on start-up. It is a fairly unusual occurrence, but production engineers planning an upgrade to their facilities should be aware of the possibility. Here, Jerry Hodek, Managing Director of Rotor (UK) Limited explores the problem and looks at solutions and alternatives.
Global logistics and support for big power transmission projects
The key to supplying and supporting large operationally critical power transmission equipment on a global basis is a combination of experience, planning and having the right people available on site virtually anywhere in the world, says Neil Wright, MD of Wichita Clutch.