Additionally, long life hydraulic filters, hydraulic oil, shims and bushings are provided, which help to extend service intervals, minimize downtime and reduce operating costs over time.Ĭaterpillar, Peoria, Ill., will present its lineup of machines, technology and services at ConExpo-Con/Agg 2014, March 4-8 in Las Vegas. A boom cylinder cover provides added protection from tough working conditions. Both models are equipped with counterweight rear guards to protect the engine hood. Hyundai’s R55/55W-9A excavators were built for added durability. Structural integrity was tested using the Finite Elements Method (FEM) analysis and long-term durability tests. Low-stress, high strength steel is integrally welded to form a stronger, more durable upper and lower frame. The cabin structure has been fitted with stronger but slimmer tubing for enhanced safety and improved visibility. Structure strength has been improved on the R55/55W-9A excavators. A security feature is also provided to prevent the machine from starting without a proper password. Button selections are provided for auto idle mode, max power mode and travel speed. Ergonomically designed joysticks are provided to reduce operator fatigue during the work day and multiple storage compartments are available for additional convenience.Īn advanced LCD display allows the operator to select personal machine preferences and monitor crucial machine date including engine rpm, engine oil temperature, water temperature and information for all electronic devices. Control levers are easily accessible and an instrument display is provided to keep the operator informed of pertinent machine information. An ergonomically designed suspension seat and adjustable arm rests minimize operator fatigue. HCEA says the R55/55W-9A excavators have a spacious cabin built for maximum comfort. Other valuable features include a hydraulic damper in the travel pedal and a hydraulically lubricated swing reducer with a leak-free grease chamber. Boom-down flow regeneration and control valve technology are newly improved. Improved pump flow control minimizes fuel consumption, and improved spool valves are engineered to provide more precise flow to each function with less effort.Įnhanced hydraulic valves, precision-designed variable volume piston pumps, fine-touch pilot controls and enhanced travel functions make for smooth and easy operation. The R55W-9A is a wheeled model.īoth models have an advanced hydraulic system that includes an arm flow summation system, boom holding system and a swing parking brake for smooth operation.
Hyundai’s R55-9A is a track model with standard steel tracks and optional rubber tracks. A dozer blade comes standard for light grading, backfilling and for stability while excavating. Both machines feature a bucket digging force of 8,490 pound force and bucket capacity of 0.24 cubic yards. The R55-9A has a dig depth of 12 feet, 6 inches and the R55W-9A has a dig depth of 11 feet, six inches. The R55W-9A has an operating weight of 12,240 pounds and is powered by a 65.1 horsepower Tier 4 Final, Yanmar 4TNV98 engine. The R55-9A has an operating weight of 12,460 pounds and is powered by a 65.1 horsepower Tier 4 Final Yanmar 4TNV98C engine. The R55/55W-9A models are nimble machines that provide plenty of power and are ideal for rental, light construction utility and landscape applications, the company says. Improvements include a certified Tier 4 Final engine upgrade, improved hydraulics, increased operator comfort and added durability, says the company. These company says the two machines will provide operators with enhanced features and benefits compared to prior models.
OPERATING A HYUNDAI EXCAVATOR R55 SERIES
(HCEA), Norcross, Ga., has added the R55-9A and R55W-9A mini excavators to its 9A series product line. Restart prevention system effectively avoids the misoperation, and improve the use security of the machine.Hyundai Construction Equipment Americas Inc. Unique fan cover with the shape of hopper opening greatly improves the air supply of the engine and the radiating capacity of the system, guaranteeing the successive high-efficient work of the machine. Automatic preheating system improves the working capacity in the low temperature. The adoption of the advanced turbocharging technique increases the highland adaptability of the machine. The adoption of new cooling fan and large-scale silencer lowers the noise of the machine. Low emission meets the Europe II standard. Precise matching design with advanced energy conservation control can reduce the oil consumption of the machine. The imported engine with original packing has strong power, and can meet the requirements of high-efficient work. Cheap Price Hyundai Crawler Excavator R55-7S
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