New CAT Equipment

300.9D Mini Hydraulic Excavator

Compact Size for Tight Jobs

The Cat 300.9D Mini Excavator delivers power and performance in a compact size to help you work in the tightest applications. Its ability to fit through a narrow doorway makes it an excellent machine for indoor demolition work.

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    Benefits

    Compact

    Work in tight areas

    Easy to Use

    Simple controls for easy operation

    Versatile

    Range of attachments for a variety of applications

    Learn more about the 300.9D Mini Hydraulic Excavator

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    • Chassis and Swivel Gear
      Gradeability
      30°/58%
      Ground Clearance
      5 in
      Ground Pressure
      3.5 psi
      Machine Swing Speed
      8 r/min
      Number of Rollers - Each Side
      2
      Track Width
      7 in
      Travel Speed
      1.12 mile/h
    • Dimensions
      Boom Swing Angle - Left
      55 °
      Boom Swing Angle - Right
      56 °
      Dig Depth
      68 in
      Height - With ROPS Safety Frame Folded Down
      4.94 ft
      Height - With ROPS Safety Frame Unfolded
      7.47 ft
      Length - Undercarriage
      4 ft
      Maximum Dig Height
      9.39 ft
      Maximum Dozer Dig Depth
      7 in
      Maximum Dozer Lift Height
      8 in
      Maximum Dump Height
      6.68 ft
      Maximum Reach
      10.09 ft
      Maximum Reach - Ground Level
      9.92 ft
      Maximum Vertical Dig Depth
      4.43 ft
      Minimum Front Linkage Swing Radius
      3.77 ft
      Tail Swing Radius
      2.41 ft
      Track Width
      7 in
      Transport Length - Arm Lowered
      9 ft
      Undercarriage Width - Extended
      2.83 ft
      Undercarriage Width - Retracted
      2.33 ft
      Width
      2.4 ft
    • Dozer Blade
      Dig Depth
      7 in
      Height
      8 in
      Lift Height
      8 in
      Width
      28 in
    • Engine
      Battery
      12 V, 20 Amp
      Diesel Tank Volume
      2.64 gal (US)
      Displacement
      52 in³
      Emissions
      Meets U.S. EPA Tier 4 Final/EU Stage V emission standards.
      Engine Model
      Yanmar 31NV70
      Flywheel Output ISO
      13 HP
      Gross Power - ISO 14396
      18 HP
      Make/Type
      Yanmar 31NV70
      Maximum Engine Output
      18 HP
      Net Power
      13 HP
      Rated Speed
      2100 r/min
      Type
      Water cooled model 3-cylinder diesel engine
    • Hydraulic System
      Discharge Capacity
      11.4 + 11.4 L/min (3 + 3 gal/min)
      Hydraulic Tank Capacity
      3.7 gal (US)
      Operating Pressure Pivot
      1015 psi
      Operating Pressure for the Work and Travel Hydraulics
      2466 psi
      Pumps
      2 gear pumps
    • Noise Emissions
      Sound Power Level (LWA) (to 2000/14/EG)
      93 dB(A)
    • Operating Specifications
      Machine Overhang
      12.5 in
      Stick Length - Standard
      34.8 in
    • Operational Data
      Digging Force - Bucket
      2000 lb
      Digging Force - Stick
      1011 lb
      Operating Weight - With Safety Frame
      2170 lb
      Operating Weight - Without Safety Frame
      2061 lb
    • Weights
      Operating Weight
      2061 lb
      Operating Weight - With Safety Frame
      2170 lb
      Operating Weight - Without Safety Frame
      2061 lb
    2 way (auger) auxiliary lines to the stick (not available in all regions)
    Bio oil
    Buckets: 250 mm (10 in); 350 mm (15 in); 700 mm (2 ft 4 in)
    Custom color paint
    Front guard
    Hammer
    Rotating beacon