Enabling Rammer to Hit Harder Rammer, part of Sandvik Mining and Construction in Finland, manufactures hydraulic attachments for rock excavation, demolition and recycling. The company have been users of LUSAS for many years, analysing hammer parts, hammer housings and cutter-crusher and pulverizer parts for their Rammer range of products. Rammer is recognised as a world leader in the design and manufacture of hydraulic hammers for primary and secondary breaking work. The 1m long cylindrical piston of a large hammer is made from case hardened steel and weighs over 200 kg. The piston strikes a work tool with a velocity approaching 10 m/s. Transient 3D dynamic analysis using LUSAS Analyst was necessary to understand what happens to the piston and tool as a result of the impact. Of particular

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