0.5m³ Bucket Digger - Official Technical Overview & Datasheet

EXECUTIVE SUMMARY The 0.5m³ Bucket Digger is a purpose-engineered compact hydraulic excavator designed for high-density urban construction, agricultural land formation, and light quarry operations. With a standard bucket capacity of 0.5 cubic meters, it delivers exceptional break-out force while maintaining a transport width compliant with standard road regulations. This model effectively replaces manual crews and backhoe loaders in trenching, footing excavation, and site grading applications. Positioned between mini-excavators (0.2–0.3m³) and standard 13-ton class machines, the 0.5m³ Digger offers optimal cycle efficiency for job sites requiring 3–5 tons of material moved per hour. Its primary value proposition is low owning and operating cost combined with Tier 4 Final / Stage V compliance, making it a preferred fleet addition for rental houses, municipal works departments, and infrastructure subcontractors.

STRUCTURAL INTEGRITY & POWERTRAIN The chassis is fabricated from high-tensile BS700MC and Q355D steel plates, with reinforced track frames and a double-welded boom foot. The upper structure integrates an X-frame design that distributes loading stresses during swing and heavy digging. All pivot points are bushed with induction-hardened steel pins and replaceable grease-sealed bearings, extending service life to 10,000+ hours in abrasive soils. Power comes from a liquid-cooled, 4-cylinder turbocharged diesel engine (Isuzu 4JJ1-X or optional Cummins QSF3.8), delivering 74 kW (99 hp) at 2,200 rpm. The engine is certified to EPA Tier 4 Final / EU Stage V using a DPF+SCR aftertreatment system. The hydraulic system features a dual-variable-displacement axial piston pump with a maximum flow rate of 156 L/min, operating at 34.3 MPa (4,980 psi). This load-sensing, negative-flow control system reduces parasitic losses by 17% compared to fixed-displacement designs. KEY FEATURES & OPERATOR COMFORT - Load-Sensing Hydraulic with Boom Priority: Electronically controlled pump regulation sends priority flow to boom and arm circuits during combined movements, reducing cycle times by 12% in truck-loading applications. - ROPS/FOPS Certified Cab: ISO 12117-2 certified falling-object protective structure (FOPS) and rollover protective structure (ROPS) with laminated front glass and top guard. Cab interior includes an air-suspension seat, tiltable steering column, and low-noise pressurization (68 dBA). - Smart 7-inch LCD Monitor: Real-time display of engine rpm, hydraulic oil temperature, fuel consumption rate (L/h), and maintenance countdown. Integrated rear-view camera and grade indicator system. - Auto Idle & Auto Shutdown: Engine automatically returns to low idle after 5 seconds of joystick inactivity and fully shuts down after preset idle time (5–30 min configurable), cutting unnecessary fuel burn and emissions. - Swing Boom Option: For working along walls and in narrow corridors, a swing boom attachment allows offset digging of up to 65° left and 55° right without repositioning the tracks. COMPLIANCE & SAFETY STANDARDS The 0.5m³ Bucket Digger is manufactured under ISO 9001:2015 quality management and ISO 14001 environmental systems. It complies with: EN 474-1 (Earth-moving machinery safety), ISO 3457 (guards and shields), and ISO 10265 (operator controls). The engine meets EPA Tier 4 Final, EU Stage V, and China National IV emission standards. The cab meets ROPS requirements per ISO 12117-2 and FOPS Level II (ISO 3449). Additionally, the machine comes with standard ISO 8643 falling object warning system and secondary engine shutdown switch (cab + ground level). TECHNICAL SPECIFICATIONS All parameters are measured under ISO 9249 and ISO 6016 standards at ambient temperature 25°C with standard 0.5m³ general-purpose bucket and 500mm track shoes.