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Excavators

PC88MR-11

Small excavators

  • Horsepower (kW) 51 kW @ 1 850 rpm
  • Power (HP) 68 HP @ 1,850 rpm
  • Operating weight (kg) 8720
  • Operating weight (lbs) 19213
  • Bucket capacity (m^3) 0.09 - 0.20
  • Bucket capacity (yd^3) 0.12 - 0.26

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The PC88MR-11 has a powerful swing force, can efficiently work on slopes, and delivers exceptional drawbar pull. In conjunction with automatic downshift, this machine is ideal on any terrain or for any application. And it’s standard with our Komtrax remote monitoring and location system, backed by our Australia-wide service and support network.

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    Features and benefits

    Small tail swing

    Small tail swing

    The narrow swing area is well suited for operation in confined areas with only a 325 mm protrusion over the tracks.

    Against wall

    Against wall

    PC88MR-10 can work in confined spaces with its swing boom design

    Large vertical pin and steel bushing

    Large vertical pin and steel bushing

    A large vertical pin and steel bushing are used at the boom foot for improved durability. An abrasion-resistant steel bushing further improves service life.


    Specifications

    Metric Imperial (US)
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    • HydrauMind Type: HydrauMind (Hydraulic Mechanical Intelligence New Design) system, closed-center system with load-sensing valves and pressure-compensated valves
    • Blade circuit (raise)(MPa): 12.7
    • Blade circuit (raise)(kgf/cm^2): 130

    • Main pump

      • Pumps for: Boom, arm, bucket, swing, and travel circuits
      • Variable Type: Variable displacement, axial piston
      • Maximum flow (US gpm): 16.64
      • Maximum flow (L/min): 63
      • Swing pump maximum flow (gpm): 17
      • Swing pump maximum flow (L/min): 63
      • Gear Type: Fixed displacement gear
      • Main pumps for: Boom, arm, bucket, swing, and travel circuits

    • Auxiliary hydraulics (two-stage relief)

      • One-way (gpm): 21.13
      • One-way (L/min): 80
      • Relief (MPa): 26.51 or 17.17 (in breaker mode)
      • Relief (psi): 3,830 or 2,490 (in breaker mode)
      • Relief in breaker mode (psi): 2,490
      • Relief in breaker mode (MPa): 17.17
      • Two-way (gpm): 36.5
      • Two-way (L/min): 138

    • Relief valve setting

      • Travel: 2 x piston motor with parking brake
      • Swing: 1 x axial piston motor with swing holding brake
      • Blade circuit (lower)(MPa): 21.1
      • Implement circuits (psi): 3841.29
      • Travel circuit (psi): 3839
      • Swing circuit (psi): 3058
      • Implement circuits (MPa): 26.48
      • Pilot circuit (psi): 464
      • Implement circuits (kgf/cm^2): 270
      • Blade circuit (lower)(psi): 3,060
      • Blade circuit (lower)(kgf/cm^2): 215
      • Blade circuit (raise)(psi): 1,842
      • Pilot circuit (kgf/cm^2): 33
      • Pilot circuit (MPa): 3.2
      • Swing circuit (kgf/cm^2): 215
      • Swing circuit (MPa): 21.1
      • Travel circuit (kgf/cm^2): 270
      • Travel circuit (MPa): 24.5

    • Hydraulic cylinders

      • Boom (Number of cylinders – bore x stroke x rod diameter)(mm): 115 x 988 x 65
      • Boom (Number of cylinders – bore x stroke x rod diameter)(in): 4.53 x 38.9 x 2.56
      • Arm (Number of cylinders – bore x stroke x rod diameter)(mm): 100 x 861 x 60
      • Arm (Number of cylinders – bore x stroke x rod diameter)(in): 3.94 x 33.90 x 2.36
      • Bucket (Number of cylinders – bore x stroke x rod diameter)(mm): 90 x 710 x 55
      • Bucket (Number of cylinders – bore x stroke x rod diameter)(in): 3.54 x 27.95 x 2.17
      • Blade (1)(in): 5.12 x 7.87 x 2.56
      • Blade (1)(mm): 130 x 200 x 65
      • Boom swing (1)(mm): 120 x 638 x 60
      • Boom swing (1)(in): 4.72 x 25.12 x 2.36

    • Drive method type: Hydrostatic
    • Maximum drawbar pull (kgf): 6820
    • Maximum drawbar pull (lbs): 15,309
    • Service brake type: Hydraulic lock
    • Parking brake: Mechanical discs

    • Maximum travel speed

      • High (mph): 3.11
      • High (kph): 5
      • Low (kph): 2.7
      • Low (mph): 1.68

    • Drive method: Hydrostatic
    • Swing reduction: Planetary gear
    • Swing circle lubrication: Grease-bathed
    • Service brake: Hydraulic lock
    • Holding brake/Swing lock: Mechanical disc brake
    • Swing speed (rpm): 10
    • Driven by: Hydraulic motor

    • Operating weight features (ft): Operating weight includes 11 ft. 2 in one-piece boom, 6 ft. 11 in arm, ISO 7451 heaped 0.26 yd3 bucket, blade, rated capacity of lubricants, coolant, full fuel tank, operator, and standard equipment.
    • Operating weight features (mm): Operating weight includes 3 405 mm one-piece boom, 2 100 mm arm, ISO 7451 heaped 0.20 m3 bucket, blade, rated capacity of lubricants, coolant, full fuel tank, operator, and standard equipment.

    • Road liner

      • Ground pressure with road liner 18 in (psi): 5.54
      • Ground pressure with road liner 450 mm (kg/cm^2): 0.39
      • Ground pressure with road liner 450 mm (kPa): 38.2
      • Operating weight with road liner 18" (lbs): 19,224
      • Operating weight with road liner 450 mm (kg): 8 720

    • Triple grouser shoes

      • Ground pressure with triple grouser 450 mm (kPa): 38.2
      • Ground pressure with triple grouser 600 mm (kg/cm^2): 0.3
      • Ground pressure with triple grouser 18 in (psi): 5.54
      • Ground pressure with triple grouser 600 mm (kPa): 29.4
      • Ground pressure with triple grouser 24" (psi): 4.26
      • Ground pressure with triple grouser 450 mm (kg/cm^2): 0.39
      • Operating weight with triple grouser 450 mm (kg): 8 580
      • Operating weight with triple grouser 18 in (lbs): 18,916
      • Operating weight with triple grouser 600 mm (kg): 8 750
      • Operating weight with triple grouser 24 in (lbs): 19,290

    • Ground pressure

      • Ground pressure with Rubber shoe 18" (psi): 5.41

    • Rubber shoe

      • Ground pressure with rubber shoe 450 mm (kg/cm^2): 0.38
      • Ground pressure with rubber shoe 450 mm (kPa): 37.3
      • Operating weight with rubber shoe 450 mm (kg): 8 500
      • Operating weight with rubber shoe 18 in (lbs): 18,739

    • Engine Model: Komatsu SAA3D95E-1*
    • Cooling type: Water-cooled, 4-cycle, direct injection
    • Aspiration: Turbocharged, aftercooled, cooled EGR
    • Bore (mm): 95
    • Bore (in): 3.74
    • Stroke (in): 4.53
    • Stroke (mm): 115
    • Piston displacement (L): 2.45
    • Piston displacement (in^3): 149.51
    • Engine Rated (rpm): 1,850
    • Governor: All-speed control, electronic
    • Fan drive method for radiator cooling: Mechanical with viscous fan clutch

    • Horsepower

      • SAEJ1995 - Gross (HP): 67.99
      • SAEJ1995 - Gross (kW): 50.7
      • ISO 9249 / SAE J1349 - Net (HP): 68
      • ISO 9249 / SAE J1349 - Net (kW): 50.6

    • Fuel tank (L): 125
    • Fuel tank (US gal): 33
    • Engine (L): 10.5
    • Engine (US gal): 2.77
    • Final drive (US gal): 0.29
    • Final drive (L): 1.1
    • Swing drive (L): 2.8
    • Swing drive (US gal): 0.74
    • Hydraulic tank (US gal): 14.79
    • Hydraulic tank (L): 56
    • Radiator (L): 18
    • Radiator (US gal): 4.76

    • Center frame: X-frame leg
    • Track frame: Box-section
    • Track adjuster: Hydraulic
    • Number of shoes (each side): 39
    • Number of carrier rollers (each side): 1
    • Number of track rollers (each side): 5
    • Seal of track: Sealed

    Tier 4 engine KDPF regeneration

    As the technology of diesel engines has progressed from Tier 3 to Tier 4 Final, design aspects of the engines have been fine-tuned to comply with regulations to cover regulated diesel engine exhaust pollutants.

    The result is that these new diesel engines are cleaner than ever before, and in many cases more fuel efficient too. Along with this comes the need to properly manage and maintain these new generation of machines to make sure that operating costs are minimised.

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