A Cat H140Es hammer breaks concrete chunks.
Caterpillar has added three new models to the E Series hammer line — H140Es, H160Es and H180Es — for use on medium and large excavators. Cat E Series hammers feature a rugged design for extended durability and solid reliability, and features such as automatic shut-off, silencing and vibration buffering make them easy on the operator. The E Series hammers are designed to be field serviceable with common hand tools to keep them operating at peak performance.
Cat hammers are wholly designed, engineered and manufactured by Caterpillar and are an optimum match to Cat carriers. The three new hammers match up with Cat excavators ranging from the 324E to the 374D L. Mounting brackets are available for Cat quick couplers. The energy classes of the H140Es, H160Es and H180Es are 6,000 ft.-lb. (8,135 J), 8,500 ft.-lb. (11,525 J) and 12,000 ft.-lb. (16,270 J), respectively.
E Series hammers feature a new symmetrical housing design, which allows rotating the housing 180 degrees to compensate for wear, effectively extending the life of the housing. The lower portion incorporates rock edges that add protection to the housing and enable quick positioning of boulders. An optional wear package is available to further enhance hammer durability in severe applications.
The new housing is built for strength and lowers life cycle costs. A sleek, curved front and back profile eliminates stress points and transfers forces to the bottom of the hammer. One-piece side plates eliminate points where cracks can start. The hammers are fully supported by Cat dealers so that customers can work with a single organization for machine and work tool parts and service.
The E Series hammers build on the D Series hammers, which the new hammers replace. Those features include automatic shut-off, which instantly stops the hammer when the tool breaks through material. The system increases hammer reliability and durability by eliminating the high internal stresses created by blank firing. Another feature continued in each E Series hammer is the external pressure control valve, which reduces service time when an adjustment is necessary. Sound suppression is standard for environmental protection and enhanced operator comfort.
Caterpillar hammer settings are preprogrammed in Cat excavator tool control systems for easy set up. The oil flow and pressure are fully adjustable in the tool control program. Also, actual hammer working hours can be recorded for routine maintenance purposes.
For more information, visit www.cat.com/attachments/hammers.