The new Cat 621H, 623H and 627H wheel tractor-scrapers feature a more powerful engine in the tractor, and a more powerful engine in the scraper of the 627H.
The new Cat 621H, 623H and 627H wheel tractor-scrapers feature a more powerful engine in the tractor, and a more powerful engine in the scraper of the 627H. The Cat C13 engine in the tractor produces 407 horsepower (18 percent more compared with G- Series models), and the C9.3 in the 627H scraper produces 290 horsepower (up 19 percent). In addition, a new torque converter is designed to deliver more power to the ground. Capacities are increased 2 cubic yards—to 24 cubic yards—for the single-engine/open-bowl 621H and twin-engine/open-bowl 627H. The elevating 623H is rated at 23 cubic yards and features a redesigned elevator that delivers more power and is easier to adjust. New software integrates the performance of the engine and eight-speed planetary transmission, and the new models also feature higher-capacity wet disc service brakes and new cabs that are 21 percent larger than G-Series models.
The new Cat 620 K Series Wheel Tractor-Scrapers—621K, 623K, and 627K—refine the design of their H Series predecessors, which introduced features such as Sequence Assist and Load Assist that automate cycles.
Cat completely redesigned the tractor for its 613G scraper with a C6.6 engine delivering 3 percent more horsepower and a new torque converter increasing rim pull. With faster elevator and travel speeds, the 613G can load material as much as 13 percent faster than its predecessor.
The 173-horsepower Cat MH3027 material handler is the fourth and smallest in the series of wheeled material handlers that Caterpillar is introducing in the greater-than-25-metric-ton size class.
The Cat 336F L XE Hybrid hydraulic excavator captures and reuses energy, delivering an estimated fuel savings of up to 20 percent compared with its standard 336 counterpart.