久保田 U 55-4

Equipped with a brand-new hydraulic thumb and quick coupler.

Product Overview Basic Specifications: The Kubota U55-4 is a 5.5-ton class compact hydraulic excavator featuring a zero-tail-swing (or short-tail-swing) design. It is powered by a genuine Kubota diesel engine (approx. 47.6 hp), delivering a balance of low fuel consumption, high torque, and powerful digging force. Configuration Advantages: The machine comes factory-equipped with an auxiliary hydraulic circuit (AUX) and a dedicated mounting bracket/relief valve for a hydraulic thumb. When paired with a quick coupler and a hydraulic thumb, the machine transforms from a standard excavator into a versatile, multi-functional platform capable of gripping, material handling, demolition, and grading. II. Core Product Advantages and Selling Points 1. Exceptional Gripping and Handling Capabilities (Powered by Hydraulic Thumb) Precision Gripping and Material Sorting: When the hydraulic thumb works in tandem with the bucket, it functions like a human hand, easily grasping irregularly shaped materials—such as trees, rocks, pipes, scrap rebar, and construction debris—thereby significantly boosting cleanup and sorting efficiency. Factory Integration and Safety Protection: The U55-4 features a factory-designed mounting bracket for the thumb and a built-in hydraulic safety relief valve. This setup prevents damage to the hydraulic cylinder or dipper arm structure caused by excessive pressure when handling heavy loads. 2. Rapid Attachment Changes and High Operational Efficiency (Powered by Quick Coupler) Quick Attachment Swapping: Operators can seamlessly switch between various attachments—such as standard buckets, narrow trenching buckets, hydraulic breakers, and augers—in seconds without leaving the cab to manually drive out pins, drastically reducing downtime. Expanded Operational Versatility: Complemented by the U55-4’s dashboard-integrated auxiliary flow memory and adjustment function (allowing for preset flow rates for different attachments), the quick coupler enables operators to easily handle diverse tasks—including digging, demolition, and material handling—on a single job site. 3. Zero/Tight Tail Swing and Operation in Confined Spaces (U55-4 Core Advantage) Big performance in small spaces: Featuring a Zero/Tight Tail Swing design, the machine allows for operation right next to walls, roadside fences, or in narrow alleys without the risk of the rear end striking obstacles. Boom Swing Function: Supports left-right boom offset; combined with a quick coupler and hydraulic thumb, it enables easy pipeline laying or debris clearing right up against wall bases. 4. Smooth Hydraulics and Powerful Digging Force Load-Sensing Hydraulic System (3-Pump Load Sensing): Even during simultaneous operations—such as lifting, swinging, extending the arm, and using the thumb—the system distributes hydraulic oil on demand, ensuring smooth, seamless movement. Exceptional Digging and Lifting Power: Bucket digging force reaches the 4,300 kgf class; paired with a powerful arm, it handles hard soil and heavy truck loading with ease. 5. Operator Comfort and Easy Maintenance Spacious Cab: Features a deluxe suspension seat, all-around air conditioning vents, wide-visibility glass, and a low-noise design, significantly reducing fatigue during long shifts. Easy Maintenance: Designed with a side-opening hood, daily engine check points and hydraulic filters are concentrated in easily accessible areas, saving time and effort on servicing. III. Recommended Applications Municipal and Roadworks: Road excavation, ditch cleaning, pipeline laying, and manhole cover handling. Landscaping and Agriculture: Clearing tree roots, moving large stones or timber, constructing flowerbeds, and digging trenches or irrigation channels. Building Demolition and Debris Removal: Interior or small-scale building demolition, waste sorting, and debris loading. Rental and General Construction: Highly adaptable thanks to the quick coupler and hydraulic thumb, making it a top-choice, h