Colorado Public Works Journal, Spring 2022

10| ColoradoPublic Works Journal On March 1, John Deere announced the release of the newly enhanced 350 P-tier and 380 P-tier excavators to the manufacturer’s mid-size excavator lineup. These revamped machines are the first excavator models to launch as part of John Deere’s new Performance Tiering strategy. The 350 P-tier and 380 P-tier support on-demand safety, comfort, and control — all while delivering the power needed to produce at high levels on the job. Manufactured in Kernersville, N.C., the 350 P-tier and 380 P-tier were designed to deliver exceptional performance, efficiency, comfort, and service life in demanding, high-production applications. With productivity top-of-mind, both excavators offer SmartGrade™ technology as a factory option and field upgrade kits. Customers can choose from 2D guidance, 3D guidance, 2D SmartGrade Ready Control, and SmartGrade 3D Control. These grade management options allow customers to choose a level of technology that’s right for them with the ability to upgrade as their business grows. Overdig protect limits the bucket's cutting edge from going below the target design surface. Visibility around the machines has been improved with the option of a right, rear and left camera system with LED surround lighting that provides enhanced 270 degree visibility and is integrated into the primary display in the cab. Focusing on operator comfort and producEQUIPMENT Works News The World of Asphalt 2022 show in Nashville in March saw the Wirtgen Group showing 11 exhibits representing a cross-section of its market-oriented and holistic solutions for the entire road construction process. The highlight of the show, the W 120 Fi, celebrated its world premiere at the event as a representative of Wirtgen’s new generation of compact milling machines. On the 9,000sq.ft./840m2 booth at the show, the focus was set not only on Wirtgen Group solutions, but also on the critical issues of cost-effectiveness and sustainability. Unique in this industry segment, the innovative technologies of the proven Wirtgen F-series large milling machines have now been integrated in the company’s compact milling machines. The New W 120 Fi Compact Milling Machine Headlines the Show of Wirtgen Group Solutions at World of Asphalt 2022 John Deere Unveils new Mid-Sized Excavators tivity, both models come standard with front LED work lights. Owner/operators also have the option of a heated air suspension seat, premium leather heated and cooled seat, additional deluxe LED work lights, as well as cold weather and debris packages for those who tackle jobs in any weather condition. Outside the cab, both models are equipped with a new, larger hood design and better serviceability. Each cooler is individually removable, and operators or technicians have easier access within the compartment. In an effort to lower daily operating costs, the machines’ fuel economy is up seven percent compared to previous models via electric on-demand cooling fans that reduce engine load, in-line after treatment for less restriction and system complexity, along with increased front piping diameter to cut down hydraulic restriction. To learn more about the 350 P-Tier and 380 P-Tier, as well as the entire John Deere excavator lineup, visit