Cat Rolls Out 988K XE Electric Drive Loader


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.

IMG 0692The 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 yd3 (4.7-13 m3). 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.

The standard Cat Product Link offers remote data monitoring through VisionLink, so key personnel can stay informed of critical machine operating data. Fuel usage, payload summaries, scheduled service reminders, fault code alerts and various productivity reports are available to help improve machine management. Additionally, the onboard Vital Information Management System (VIMS) provides the operator with operating data such as real-time fuel consumption and fuel efficiency via an interactive touch screen display.

The new Cat 988K XE loader is equipped with a host of technology solutions to increase operating efficiency and machine uptime. Cat Production Measurement (CPM) brings payload weighing to the cab, so operators can work more productively and deliver accurate loads with confidence. CPM offers advanced weighing modes, which assist with payload accuracy and increase loading cycle speed.

Optional Tire Pressure Monitoring System (TPMS) is a fully integrated Cat feature, which enables operators to monitor tire inflation. Available through the VIMS display, the operator can quickly view each tire’s pressure and take action when needed to reduce wear and increase service life.

As customers have come to expect from the 988K, operators safely access via left- or right-hand stairs built at a reduced 45-degree angle and maintain three points of contact at all times. The STIC steer armrest easily folds up, allowing the operator to quickly enter the cab. Isolation cab mounts and an air-suspension seat reduce vibration transmitted to the operator for increased comfort, while the enclosed pressurized structure reduces operator sound levels. The automatic, in-cab temperature control system maintains operator comfort even in extreme temperatures.