Link-Belt Excavator Company has officially unveiled the 145 X4S hydraulic excavator, a machine built to deliver higher efficiency, advanced control, and superior operator comfort. Designed for modern construction challenges, this new model combines smart technology with powerful performance to help contractors achieve more with less fuel and less downtime.
At the core of the 145 X4S lies an electronically controlled hydraulic pump system integrated with Link-Belt’s well-known Spool Stroke Control (SSC) system. This advanced pairing dramatically improves hydraulic efficiency and control precision, ensuring smooth operation and maximum productivity on demanding job sites.
Powered by the reliable 102-hp Isuzu AR-4JJ1X Tier 4 Final engine, the 145 X4S offers strong performance and exceptional fuel economy. Its design eliminates the need for a Diesel Particulate Filter (DPF), reducing both maintenance time and replacement costs. Operators can easily switch between four power modes — SP, Power, Eco, and Lift — to optimize performance, precision, and fuel efficiency according to specific tasks.
Performance-wise, the excavator delivers a maximum digging depth of 5.5 meters, a reach of 8.14 meters, and a swing speed of 12.5 rpm. With a travel speed of 5.6 km/h and an operating weight of 14,800 kg, the 145 X4S offers both stability and agility for mid-size projects.
In addition to raw power, Link-Belt has integrated next-generation technology to make operations smarter. The optional payload management system displays real-time bucket load data, helping operators avoid overloading and improve hauling efficiency. The system can store multiple truck capacities and bucket sizes, supporting more organized and precise material handling. The machine also comes precision grade ready, simplifying the integration of IMU sensors and grade control kits for accurate digging and leveling.
Maintenance has been streamlined for long working hours. With 500-hour fuel filter service intervals and a DEF tank consuming only 2–3% compared to diesel, operators can stay productive longer with fewer interruptions. Ground-level access to key service points further enhances safety and convenience.
Inside the cab, comfort and visibility take center stage. A spacious, ROPS- and FOPS-certified cabin features a high-back heated seat, excellent legroom, and an anti-glare 25-cm LCD monitor that provides customizable data displays. The Wide Angle Visual Enhancement System (WAVES) offers a 230-degree field of view, improving on-site awareness and operator confidence.
For contractors and fleet owners, a powerful machine like the 145 X4S deserves an equally dependable undercarriage system. Fulian’s undercarriage solutions deliver that reliability. From track chains and idlers to bottom rollers and sprockets, Fulian provides precision-engineered components built to handle rugged terrains and extended working hours. Our durable undercarriage parts ensure long service life and smooth operation for machines like the 145 X4S.
Whether you run a construction fleet or manage excavation projects, partnering with Fulian means consistent performance, reduced maintenance costs, and dependable after-sales support.
Contact us today to learn more about our customized undercarriage solutions and keep your fleet running efficiently.
Fulian Operation Team
2025.10.22
