The new Cat 990K wheel loader offers more power and increased payload for greater productivity and fuel efficiency, Caterpillar said. A redesigned cab delivers a superior operator interface and a quiet environment, and several new features promote operator and maintenance technician safety and performance.
Designed as an optimum loading tool for Cat construction and mining trucks, specifically the 773, 775 and 777 ranging from about 60 to 100 tons capacity, the new 990K also features engine configurations to meet customer needs worldwide. The 990K builds on the proven features of previous models and replaces the 990H.
The rated payload of the new 990K is 17.5 tons – up from the 16.5-ton payload of the H Series model. The increased payload makes the new loader a perfect 4-pass match with the Cat 775 truck for efficient, high-production loading. New, performance-series buckets promote fast filling and full bucket loads on every pass, and they are available in sizes ranging from 11.25 to 13 cu. yd.
The Cat C27 ACERT engine powers the 990K and delivers an 11 percent increase in power compared to the previous model. Net power of 699 hp helps delivers increased production without any change in fuel consumption. Lower engine speed helps drive economical fuel use. Additional fuel savings accrue with ECO Mode (on-demand throttle), engine-idle shutdown system and engine-idle kickdown/
auto-resume system.
The 990K is available as a U.S. EPA Tier 4 Final version and as a Tier 2 version for less regulated regions. No regeneration or operator intervention is required for the NOx reduction system and diesel oxidation catalyst equipping the Tier 4 Final model. And there is no increase in fuel consumption as a result of the engine emissions control systems.
The Cat-exclusive, field-proven impeller clutch torque converter uses a lock-up clutch, providing direct drive to boost fuel economy, trim cycle times, and reduce heat, especially in load-and-carry applications. The system allows operators to balance rimpull and hydraulic power for optimum loading efficiency. Positive Flow Control implement hydraulics use a variable displacement, electronically controlled pump to precisely apportion oil flow based on operator control inputs.
For added safety, a remote panel houses a stairway light switch, engine shutdown switch, and lockouts for the transmission and engine starter. A second panel provides convenient access to the battery disconnect switch and a jump-start receptacle. Routine maintenance points are easily accessable.
A number of additional options are available to tailor the loader for specific applications and sites. For example, the optional high lift linkage enables the 990K to load Cat 777 trucks. The integrated axle cooling package and ride control options are particularly beneficial in load-and-carry work.
Caterpillar, www.cat.com