After 30 years of service, the Swiss company Steinbruch Mellikon AG has complemented its two longstanding production machines, which are slowly becoming redundant after more than 20,000 hours, with a new Hitachi Construction Machinery (HCM) ZX890LCR-7. This landmark investment in the latest technology is of historic significance, especially for a limestone quarry that was established in 1912 to the northwest of Zurich in the Aargau Jura mountains.