Hyundai R55-9A Excavator

  • Net Power: 65.1 hp (48.5 kW) at 2,400 rpm

    Operating Weight: 5,650 kg (12,460 Ibs)

    Standard Bucket: 0.18 m3 (0.24 yd3)

  • Hyundai R55-9A Excavator

  • Performance

    • Yanmar Tier 4 Final Engine
    • Boom Swing
    • Dozer Blade
    • Standard Tail Swing

  • Convenience

    • Monitor
    • Suspension Seat
    • Ergonomic Controls & Switches
    • Cab Entry

  • Serviceability

    • Centralized Lubrication
    • Long-life Components
    • Easy Access
    • Durable Cooler

Overview

Operating a 9A series is unique to every operator. Operators can fully customize their work environment and operating preferences to fit their individual needs. 9A series is designed for maximum performance to keep the operator working productively.

Reliable and Durable

Hyundai construction equipment is precision designed with trusted and proven components and systems from leading OEM's. The R55-9A is designed to be rugged and reliable for longer up time, reduced operating cost and improved productivity.

  • Engine and Hydraulic System

    Engine: Model YANMAR 4TNV98C
    Engine: Type Water-cooled, 4-cycle diesel 4 cylinders in line, direct injection, low emission
    Engine: Max. torque 24 kgf. m (173.6 lbf. ft) at 1,560 rpm
    Engine: Bore X stroke 98 mm (3.85") x 110 mm (4.33")
    Engine: Piston displacement 3,319 cc (203 in³)
    Battery 1 x 12 V x 100 Ah
    Starting motor 12 V - 3.0 kW
    Alternator 12 V - 60 Amp
    Main Pump: Type Two variable displacement piston pumps + gear pump
    Main Pump: Max flow 2 X 57.8 ℓ/min (15.3 gpm) pumps + 38.4 ℓ/min (10.1 gpm) at 2,100 rpm
    Main Pump: Sub-pump for pilot circuit (Gear pump) 9.5 ℓ/min (2.5 gpm)

  • Cross-Sensing and Fuel-Saving Pump System

    Hydraulic Motors - Travel Two speed axial piston motor with counter balance valve and parking brake
    Hydraulic Motors - Swing Axial piston motor with automatic brake
    Relief Valve - Implement circuits 240 kgf/cm² (3,410 psi)
    Relief Valve - Travel circuit 220 kgf/cm² (3,130 psi)
    Relief Valve - Swing circuit 220 kgf/cm² (3,130 psi)
    Relief Valve - Pilot circuit 30 kgf/cm² (430 psi)
    Relief Valve - Service valve Installed
    Hydraulic Cylinders - No. of cylinders bore X stroke Boom: 1-110 x 715 mm (4.3" x 28.1")
    Arm: 1-90 x 850 mm (3.5" x 33.5")
    Bucket: 1-80 x 660 mm (3.1" x 26.0")
    Boom swing: 1-95 x 527 mm (3.7" x 20.7")
    Dozer blade: 110 x 219 mm (4.3" x 8.8")

  • Travel System

    Drive method Full hydrostatic type
    Drive motor Axial piston motor, in-shoe design
    Reduction system 2-stage planetary
    Max. drawbar pull 5,300 kgf (11,700 lbf)
    Max. travel speed (high) / (low) 4.2 km/hr (2.6 mph) / 2.2 km/hr (1.4 mph)
    Gradeability 35° (70%)
    Parking brake Multi-wet disc

  • Swing System

    Swing motor Axial piston motor
    Swing reduction Planetary gear reduction
    Swing bearing lubrication Grease-bathed
    Swing brake Multi wet disc
    Swing speed 9.1 rpm

  • Controls

    Pilot control Two joysticks with one safety lever
    (LH): Arm swing, Boom swing
    (RH): Boom and bucket (ISO)
    Traveling and steering Two levers with pedals
    Engine throttle Electric, dial type

  • Weight (Approximate)

    Operating weight (cab) 5,750 kg (12,570 lb)
    Ground pressure (cab) 0.33 kg/cm2 (4.69 psi)

  • Coolant and Lubricant Capacities (Refilling)

    Fuel tank 120L (31.7 gal)
    Engine coolant 9.5L (2.5 gal)
    Engine oil 11.6L (3.1 gal)
    Swing device - gear oil 1.5L (0.4 gal)
    Final drive (each) 1.2L (0.3 gal)
    Hydraulic tank 70L (18.5 gal)
    Hydraulic system 120L (31.7 gal)

  • Undercarriage

    Center frame X - leg type
    Track frame Pentagonal box type
    No. of track shoes on each side 40
    No. of upper rollers on each side 1
    No. of lower rollers on each side 5

  • Dimensions mm (ft-in)

    A - Overall height of cab 2,550 (8' 4")
    B - Tail swing radius 1,650 (5' 5")
    C - Tumbler distance 1,990 (6' 6")
    D - Overall length 5,600 (18' 4")
    E - Track shoe width Steel: 380 (1' 3") | Rubber: 400 (1' 4")
    F - Track gauge 1,600 (5' 3")
    G - Overall width 2,000 (6' 7")
    H - Ground clearance 380 (1' 3")
    115 kg (255 lb) Bucket Capacity SAE Heaped: 0.07 m3 (0.09 yd3 )
    Capacity CECE Heaped: 0.06 m3 (0.08 yd3 )
    Width without side cutters: 315 mm (12.4")
    Width with side cutters: 360 mm (14.2")
    170 kg (375 lb) Bucket Capacity SAE Heaped: 0.18 m3 (0.24 yd3 )
    Capacity CECE Heaped: 0.15 m3 (0.20 yd3 )
    Width without side cutters: 670 mm (26.4")
    Width with side cutters: 740 mm (29.1")

  • Working Range mm (ft-in)

    Boom length 3,000 (9' 10")
    Arm length 1,600 (5' 3") | 1,900 (6' 3")
    A - Max. digging reach 6,150 (20' 2") | 6,400 (20' 1")
    A1 - Max. digging reach on ground 6,010 (19' 9") | 6,270 (20' 7")
    B - Max. digging depth 3,820 (12' 6") | 4,060 (13' 4")
    B1 - Max. digging depth (8 ft) 3,420 (11' 3") | 3,700 (12' 2")
    C - Max. vertical wall digging depth 3,200 (10' 6") | 3,460 (11' 4")
    D - Max. digging height 5,780 (18' 12") | 5,920 (19' 5")
    E - Max. dumping height 4,050 (13' 3") | 4,180 (13' 9")
    F - Min. swing radius 2,350 ( 7' 9") | 2,360 ( 7' 9")
    G - Tail swing radius 1,650 (5' 5") | 1,650 (5' 5")
Hyundai R55-9A Dimensions Diagram
Compact Excavators