Skip to main content Skip to navigation
Ag Agriculture Blog IconBehind the Scenes Blog IconConstruction Blog IconEquipment Maintenance Blog Icon Power Systems Blog Icon Thumbs Down Thumbs Up! Small Business Blog IconTachnology Blog Icon Constructioncontrol-smallcost-smallefficiency-smallflexibility-smallHoursHours Location HoursMapMapMenu AgMenu AttachmentsMenu BlogMenu CareersMenu ChecklistMenu ConstructionMenu MaintenanceMenu NewMenu PowerMenu RebuildsMenu RentMenu ServiceMenu TechnologyMenu TestimonialsMenu Training Menu Truck Menu UsedNewArtboard 1Parts Phone Phone PhonePower Systemsproductivity-smallRentalRepSafetyServiceSpecialsTechtestimonial-iconToolsTrainingTruckUsed


300.9D Mini Hydraulic Excavator

Net Power

13 HP

Operating Weight

2061 lb

Dig Depth

68 in


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.



  • Learn about the Cat 300.9D Mini Excavator -- an under 1-ton compact size machine for construction, landscaping and demolition jobs.
  • Get a quick overview of the compact Cat 300.9D Mini Excavator.

Ready to Purchase?

Buy Now



  • Operational Data
    Spec Value
    Operating Weight - Without Safety Frame 2061 lb
    Digging Force - Bucket 2000 lb
    Digging Force - Stick 1011 lb
    Operating Weight - With Safety Frame 2170 lb
  • Engine
    Spec Value
    Net Power 13 HP
    Engine Model Yanmar 31NV70
    Rated Speed 2100 r/min
    Maximum Engine Output 18 HP
    Gross Power - ISO 14396 18 HP
    Diesel Tank Volume 2.64 gal (US)
    Displacement 52 in³
    Flywheel Output ISO 13 HP
    Battery 12 V, 20 Amp
    Type Water cooled model 3-cylinder diesel engine
    Make/Type Yanmar 31NV70
    Emissions Meets U.S. EPA Tier 4 Final/EU Stage V emission standards.
  • Weights
    Spec Value
    Operating Weight - Without Safety Frame 2061 lb
    Operating Weight - With Safety Frame 2170 lb
    Operating Weight 2061 lb
  • Dimensions
    Spec Value
    Dig Depth 68 in
    Undercarriage Width - Extended 2.83 ft
    Width 2.4 ft
    Height - With ROPS Safety Frame Folded Down 4.94 ft
    Maximum Dump Height 6.68 ft
    Maximum Dozer Lift Height 8 in
    Length - Undercarriage 4 ft
    Maximum Vertical Dig Depth 4.43 ft
    Minimum Front Linkage Swing Radius 3.77 ft
    Boom Swing Angle - Left 55 °
    Undercarriage Width - Retracted 2.33 ft
    Boom Swing Angle - Right 56 °
    Maximum Reach 10.09 ft
    Maximum Reach - Ground Level 9.92 ft
    Transport Length - Arm Lowered 9 ft
    Track Width 7 in
    Tail Swing Radius 2.41 ft
    Maximum Dozer Dig Depth 7 in
    Maximum Dig Height 9.39 ft
    Height - With ROPS Safety Frame Unfolded 7.47 ft
  • Hydraulic System
    Spec Value
    Pumps 2 gear pumps
    Discharge Capacity 11.4 + 11.4 L/min (3 + 3 gal/min)
    Operating Pressure for the Work and Travel Hydraulics 2466 psi
    Operating Pressure Pivot 1015 psi
    Hydraulic Tank Capacity 3.7 gal (US)
  • Chassis and Swivel Gear
    Spec Value
    Gradeability 30°/58%
    Travel Speed 1.12 mile/h
    Track Width 7 in
    Ground Clearance 5 in
    Ground Pressure 3.5 psi
    Machine Swing Speed 8 r/min
    Number of Rollers - Each Side 2
  • Operating Specifications
    Spec Value
    Stick Length - Standard 34.8 in
    Machine Overhang 12.5 in
  • Dozer Blade
    Spec Value
    Height 8 in
    Dig Depth 7 in
    Width 28 in
    Lift Height 8 in
  • Noise Emissions
    Spec Value
    Sound Power Level (LWA) (to 2000/14/EG) 93 dB(A)

Optional Equipment

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


Rotating beacon