300.9D Mini Hydraulic Excavator

Caterpillar is pleased to announce the introduction of the 300.9D sub 3 ton mini excavator machine. The 300.9D expands the Cat® Mini Excavator offering. Most notably, the new 300.9D sub 1 tonne class provides customers with a lower cost unit for entrance into MHE ownership.

Documents


Compact DimensionsTest

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. 

Extending Undercarriage and BladeTest

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. 

Foldable Safety FrameTest

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. 

Simple ControlsTest

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. 

Easy ServiceTest

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. 

VersatilityTest

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. 

Engine

Net Power9.6kW13HP
Engine ModelYanmar 31NV70
Rated Speed2100r/min2100r/min
Maximum Engine Output13.7kW18HP
Gross Power - ISO 1439613.7kW18HP
Diesel Tank Volume10l2.64gal (US)
Displacement854cm³52in³
Flywheel Output ISO9.6kW13HP
Battery12 V, 20 Amp
TypeWater cooled model 3-cylinder diesel engine
Make/TypeYanmar 31NV70
EmissionsMeets U.S. EPA Tier 4 Final/EU Stage V emission standards.

Dimensions

Maximum Digging Depth1731mm5.68ft
Undercarriage Width - Extended864mm2.83ft
Width730mm2.4ft
Height - With ROPS Safety Frame Folded Down1507mm4.94ft
Maximum Dump Height2035mm6.68ft
Maximum Dozer Lift Height197mm8in
Length - Undercarriage1220mm4ft
Maximum Vertical Dig Depth1349mm4.43ft
Minimum Front Linkage Swing Radius1150mm3.77ft
Boom Swing Angle - Left55°55°
Undercarriage Width - Retracted711mm2.33ft
Boom Swing Angle - Right56°56°
Maximum Reach3074mm10.09ft
Maximum Reach - Ground Level3023mm9.92ft
Transport Length - Arm Lowered2746mm9ft
Track Width180mm7in
Tail Swing Radius736mm2.41ft
Maximum Dozer Dig Depth174mm7in
Maximum Dig Height2863mm9.39ft
Height - With ROPS Safety Frame Unfolded2276mm7.47ft

Hydraulic System

Pumps2 gear pumps
Discharge Capacity11.4 + 11.4 L/min (3 + 3 gal/min)
Operating Pressure for the Work and Travel Hydraulics170bar2466psi
Operating Pressure Pivot70bar1015psi
Hydraulic Tank Capacity14l3.7gal (US)

Operational Data

Operating Weight - Without Safety Frame935kg2061lb
Digging Force - Bucket8.9kN2000lb
Digging Force - Stick4.5kN1011lb
Operating Weight - With Safety Frame985kg2170lb

Weights

Operating Weight - Without Safety Frame935kg2061lb
Operating Weight - With Safety Frame985kg2170lb
Operating Weight935kg2061lb

Chassis and Swivel Gear

Gradeability30°/58%
Travel Speed1.8km/h1.12mile/h
Track Width180mm7in
Ground Clearance127mm5in
Ground Pressure0.25kg/cm²3.5psi
Machine Swing Speed8r/min8r/min
Number of Rollers - Each Side2

Operating Specifications

Stick Length - Standard890mm34.8in
Machine Overhang318mm12.5in

Dozer Blade

Height200mm8in
Dig Depth174mm7in
Width700mm28in
Lift Height197mm8in

Noise Emissions

Sound Power Level (LWA) (to 2000/14/EG)93dB(A)93dB(A)