Caterpillar rolled out its new 988K XE loader at a special media event in Peoria, Ill. The new loader was also previewed at Tower Rock Stone in Ste. Genevieve, Mo., at an event attended by Rock Products Editor Mark Kuhar. The electric drive loader delivers 25 percent greater overall efficiency and up to 10 percent more productivity in load-and-carry applications than the 988K loader.
The 988K XE is the first wheel loader offered by Caterpillar with a high-efficiency electric drive system. Delivering high-production in all loading applications, the 988K XE is recommended for demanding job sites where fuel efficiency makes a difference in the machine’s total cost of operation.
Todd Tuntland, Caterpillar’s product application specialist for large wheeled loaders, said that the electric drive system, which consists of a generator, motor and inverter, features switched reluctance (SR) technology and leverages more than 15 years of Cat electric drive experience and more than four years of stringent testing in a range of applications for proven reliability in the field. The field proven and tested C18 ACERT engine, mechanical dropbox, driveline and axles from the 988K remain in the electric drive machine for consistent, trouble-free operation.
Offering increased truck loading by up to 49 percent in face-loading applications, the loader reduces costs and helps operations reduce greenhouse gas emissions and carbon footprint.
Darren Farrow, one of the main loader operators at Tower Rock Stone, said that the machine offers better productivity because it is constantly moving and “you can split gears to fine-tune travel speed.”
The new Cat 988K XE loader offers a range of bucket capacities from 6.2-17 cu. yd. (4.7-13 cu. m). Rated standard and high lift payload for the loader reaches 12.5 tons (11.3 tonnes) when working with face material and 16 tons (14.5 tonnes) with loose material. Advansys Series Ground Engaging Tools (GET) protect bucket components and reduce operating costs, so operations can get the most out of machine performance.
The standard 988K XE wheel loader is performance matched to offer efficient 3-pass loading of the 42.6-ton (38.6-tonne) Cat 770G and 4-pass loading of the 51-ton (46.3-tonne) Cat 772. Its high-lift configuration delivers 5-pass loading of the 61-ton (55.3-tonne) Cat 773G and 6-pass loading of the 70.5-ton (64-tonne) Cat 775G.
Cat electric drive technology found in the new 988K XE lowers overall maintenance costs, while increasing engine life expectancy. Offering extended oil change intervals of 2,000 hours, the electric drive wheel loader uses 40 percent less powertrain oil.
The durable SR drive motor, generator and inverter are built to last through the second engine life with minimum maintenance. Additionally, the efficient electric drive design increases engine life by up to 3,500 hours, extending time between powertrain rebuilds.
To assist with electric drive rebuilds, Caterpillar offers customers world-class service training material, backed by industry-leading customer support from the extensive Cat dealer network. Remanufactured drive motors, generators and inverters will also be available to reduce rebuild cost.
Slight changes inside the cab of the new 988K XE provide operators with the familiar functions and feel of the 988K. At the same time, operators will experience improved handling smoothness and ease of operation. The new loader offers a single speed range, so the machine efficiently operates without the need for gear shifting. New virtual gears help to control machine ground speed and deliver smooth direction shifts.