FEATURE TOOLS & TOOLING EQUIPMENT NEW ISO STANDARDS FOR GREENER MACHINE TOOLS


When the topic of energy efficiency comes up, energy-efficient machine tools don’t immediately spring to mind. Yet machine tools contain motors and auxiliary components whose energy demand varies widely during machining operations. Happily, a new series of ISO standards can help measure energy supplied and improve machine design and performance


M


achine tools are complex power- driven industrial devices employed


to manufacture ready-for-use parts or semi-finished products. Encompassing a whole array of tools for cutting and forming metal, wood and plastics, and all their accessories, machine tools are used by companies in a variety of sectors like the automotive industry, general machinery, precision engineering, the medical sector, transport, aerospace, and dies and mould. Machine tools obviously use different


forms of energy, such as electrical energy, compressed air, hydraulic energy, energy hidden in the cooling and lubrication system, etc. Therefore, the energy demand of a machine tool is considered as key data for investment, but does not stand alone. The performance of a machine tool is multi- dimensional regarding its economic value, its technical specification and its operating requirements, which are influenced by the specific application. Hence why the ecological footprint is a common challenge for all these products and, as natural resources become scarce, environmental performance criteria for machine tools need to be defined and the use of these criteria specified. ISO has recently published the first two


parts of a new International Standard for the environmental evaluation of machine tools, which proposes to analyse machine tools with regard to the delivered functions in order to highlight the commonalities in the huge variety of existing machine tool types. ISO 14955-1, Machine tools –


Environmental evaluation of machine tools – Part 1: Design methodology for energy-efficient machine tools, addresses the energy efficiency of machine tools during their working life. It identifies the main functions and machine tool components that are responsible for energy demand during the use phase. These components are


26 JUNE/JULY 2018 | IRISH MANUFACTURING


then compared with previous components or with the state-of-the- art for their future improvement. ISO 14955-2, Machine tools –


Environmental evaluation of machine tools – Part 2: Methods for measuring energy supplied to machine tools and machine tool components, supports the energy-saving design methodology according to ISO 14955-1 by providing practical methods for measuring the energy supplied to machine tools. Ralf Reines, convenor of ISO/TC 39/WG


12 that developed the standards, explains: “This is, to my knowledge, the only standard concerning this topic that is tailored for machine tools. It covers the topic in a way that it can be applied to each and every machine tool, despite the fact that the product group of machine tools is extremely diverse, e.g. different technologies (such as milling, turning, grinding, laser processing, forming), processing of material (metal, wood, plastics) and sizes. The standard focuses


on the relevant energy users to achieve a higher environmental performance without loosing in technical possibilities.” According to the study Market Report


2016 by the German Machine Tool Builders’ Association, the world production of machine tools represents 67.7 billion euros. The increasing demand for machinery and production systems to be more energy-efficient is a relatively new challenge for machine designers. Now, with the new ISO 14955 series, energy efficiency is likely to become an increasingly important quality attribute of modern machine tools. ISO 14955-1 and ISO 14955-2 were


developed by ISO technical committee ISO/TC 39, Machine tools, whose secretariat is held by SNV, ISO’s member for Switzerland. They can be purchased from your national ISO member or through the ISO Store.


International Organization for Standardization


www.iso.org


Industrial pneumatic impact tools have ATEX certification I


ngersoll Rand, a global leader in reliable power tools, has expanded its portfolio of ATEX-certified


industrial equipment with seven new heavy-duty pneumatic impact tools and drills. The new tools meet the harshest environments of specialised applications including the petrochemical and mining industries, and other production or processing areas where hazardous atmospheres can occur. The ATEX (Atmosphères Explosibles) Directive


2014/34/EU is the European Regulatory Framework for the manufacture, installation and use of equipment in explosive atmospheres. It defines the essential health and safety requirements for equipment and protective systems. “At Ingersoll Rand we have always tirelessly


worked to be close to our customers and offer them power tools that help them do the job effectively in their even most demanding environments,” says Frederic Jezequel, product and marketing leader at Ingersoll Rand. The new industrial impact tools feature: • ATEX Ex h IIA T6 Gb X certification level. • Titanium hammer case for lightweight,


durability and corrosion resistance, particularly important for offshore applications. • High performance with the broadest torque


range on the market ranging from 800Nm to 6,780Nm to cover all applications. • Pressure fed lubrication system delivering


grease on the impacting jaws that contributes to increased durability and less frequent maintenance.


The newest additions to the


ATEX certified portfolio of Ingersoll Rand tools are: • 2131PEX - 1/2in ATEX


impact wrench featuring Ingersoll Rand twin hammer impact mechanism, pressure- fed mechanism lubrication and control allowing for precise delivery of power and speed. • 3/4in 2925RBP1TiEX - ATEX Titanium impact


wrench featuring Ingersoll Rand twin hammer impact mechanism, titanium hammer case and Corrode-X corrosion resistant treatment on internal parts. The motor can be converted to provide maximum torque in forward direction for fastening applications. • 1in 3940B2TiEX, 3942B2TiEX and 1.5in


3955B2TiEX - ATEX titanium impact wrenches specifically designed for oil and gas, power generation and other demanding industries delivering 6,780Nm of maximum torque in reverse. High performance motor package includes seven- vane rotor and bronze end-plates that allow for easy conversion to provide maximum torque in forward direction for fastening applications. • 1/2in 7803RAKCEX - and 3/8in 7802RAKCEX -


ATEX reversible drills with 500rpm and 0.50hp (0.38kW) of power featuring a quiet design, reversible motors and keyless chuck.


Ingersoll Power Tools www.ingersollrandproducts.com


/ IRISHMANUFACTURING


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