300.9D Mini Hydraulic Excavator
300.9D Mini Hydraulic Excavator
300.9D Mini Hydraulic Excavator
300.9D Mini Hydraulic Excavator

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.

Operating Weight - Without Safety Frame 2061 lb
Digging Force - Bucket 2000 lb
Digging Force - Stick 1011 lb
Operating Weight - With Safety Frame 2170 lb
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.
Operating Weight - Without Safety Frame 2061 lb
Operating Weight - With Safety Frame 2170 lb
Operating Weight 2061 lb
Maximum Digging Depth 5.68 ft
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
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)
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
Stick Length - Standard 34.8 in
Machine Overhang 12.5 in
Height 8 in
Dig Depth 7 in
Width 28 in
Lift Height 8 in
Sound Power Level (LWA) (to 2000/14/EG) 93 dB(A)

With an overall width of only 730 mm (2 ft 5 in) the Cat® 300.9D can easily drive through narrow passages and doors. Both indoor and outdoor jobs are now accessible with the under 1000 kg (2,205 lb) weight making easy trailer transportation between sites possible.

An extending undercarriage and fold out dozer blade allow the machine to be configured for excellent working stability and optimum performance. Easy retraction, controlled from the operator's seat, enables the machine to pass through narrow openings.

A protective ROPS safety frame structure mounted on the front of the machine allows fitting of a guard for extra operator protection during hammer use. The structure folds down in a few seconds for easy machine transportation and storage.

The operator area is spacious and laid out to provide comfort and ease of operation. Smooth, precise operation is possible from easy to use controls allowing all skill levels to be productive with little practice.

Service and maintenance time is reduced to a minimum with a simple to open steel engine cover and all maintenance and greasing points easily accessible.

A range of tools is available to take advantage of the machine's versatility. All tools are matched to the machine to optimize performance and deliver excellent value through high productivity and long life.