US
Metric

Overview

Caterpillar is pleased to announce the introduction of the 300.9D sub 3 tonnemini 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.

Engine

Engine Model
Yanmar 31NV70
Net Power
13.00 hp
9.60 kW
Rated speed
2100.00 RPM
2100.00 RPM
Battery
12 V, 20 Amp
Diesel tank volume
2.64 gal
10.00 L
Displacement
52.00 in3
854.00 cm3
Flywheel Output ISO
13.00 HP
9.60 kW
Gross Power (ISO 14396)
18.00 hp
13.70 kW
Make/Type
Yanmar 31NV70
Maximum Engine Output
18.00 HP
13.70 kW
Type
Water cooled model 3-cylinder diesel engine

Weights

Operating Weight
2061.00 lb
935.00 kg

Dimensions

Boom swing angle (Left)
55.00 Degrees
55.00 Degrees
Boom swing angle (Right)
56.00 Degrees
56.00 Degrees
Height with ROPS safety frame folded down
4.94 ft
1507.00 mm
Height - With ROPS Safety Frame Unfolded
7.47 ft
2276.00 mm
Length - Undercarriage
4.00 ft
1220.00 mm
Maximum Digging Depth
5.68 ft
1731.00 mm
Maximum Dump Height
6.68 ft
2035.00 mm
Maximum Dig Height
9.39 ft
2863.00 mm
Maximum Dozer Dig Depth
7.00 in
174.00 mm
Maximum Dozer Lift Height
8.00 in
197.00 mm
Maximum reach
10.09 ft
3074.00 mm
Maximum Reach - Ground Level
9.92 ft
3023.00 mm
Maximum Vertical Dig Depth
4.43 ft
1349.00 mm
Minimum Front Linkage Swing Radius
3.77 ft
1150.00 mm
Tail swing radius
2.41 ft
736.00 mm
Track width
7.00 in
180.00 mm
Transport Length - Arm Lowered
9.00 ft
2746.00 mm
Undercarriage Width - Extended
2.83 ft
864.00 mm
Undercarriage Width - Retracted
2.33 ft
711.00 mm
Width
2.40 ft
730.00 mm

Hydraulic System

Pumps
2 gear pumps
Discharge capacity
11.4 + 11.4 L/min (3 + 3 gal/min)
Hydraulic tank capacity
3.70 gal
14.00 L
Operating pressure for the work and travel hydraulics
2466.00 psi
170.00 bar
Operating pressure pivot
1015.00 psi
70.00 bar

Chassis and Swivel Gear

Gradeability
30°/58%
Ground Clearance
5.00 in
127.00 mm
Ground Pressure
3.50 psi
0.25 kg/cm²
Machine Swing Speed
8.00 r/min
8.00 r/min
Number of Rollers - Each Side
2
Track Width
7.00 in
180.00 mm
Travel Speed
1.12 mile/h
1.80 km/h

Weights

Operating Weight - With Safety Frame
2170.00 lb
985.00 kg
Operating Weight - Without Safety Frame
2061.00 lb
935.00 kg

Dozer Blade

Dig Depth
7.00 in
174.00 mm
Height
8.00 in
200.00 mm
Lift Height
8.00 in
197.00 mm
Width
28.00 in
700.00 mm

Operating Specifications

Machine Overhang
12.50 in
318.00 mm
Stick Length - Standard
34.80 in
890.00 mm

Operational Data

Digging force - Bucket
2000.00 lb
8.90 kN
Digging force - Stick
1011.00 lb
4.50 kN
Operating weight with Safety frame
2170.00 lb
985.00 kg
Operating Weight - Without Safety Frame
2061.00 lb
935.00 kg

Noise Emissions

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

Operational Data

Digging Force - Bucket
2000.00 lb
8.90 kN
Digging Force - Stick
1011.00 lb
4.50 kN
Operating Weight - With Safety Frame
2170.00 lb
985.00 kg

Engine

Engine Model
Yanmar 31NV70
Net Power
13.00 HP
9.60 kW
Rated Speed
2100.00 r/min
2100.00 r/min
Diesel Tank Volume
2.64 gal (US)
10.00 l
Displacement
52.00 in³
854.00 cm³
Gross Power - ISO 14396
18.00 HP
13.70 kW
Type
Water cooled model 3-cylinder diesel engine

Weights

Operating Weight
2061.00 lb
935.00 kg

Dimensions

Boom Swing Angle - Left
55.00 °
55.00 °
Boom Swing Angle - Right
56.00 °
56.00 °
Height - With ROPS Safety Frame Folded Down
4.94 ft
1507.00 mm
Maximum Digging Depth
5.68 ft
1731.00 mm
Maximum Dump Height
6.68 ft
2035.00 mm
Maximum Reach
10.09 ft
3074.00 mm
Tail Swing Radius
2.41 ft
736.00 mm
Track Width
7.00 in
180.00 mm
Width
2.40 ft
730.00 mm

Hydraulic System

Pumps
2 gear pumps
Discharge Capacity
11.4 + 11.4 L/min (3 + 3 gal/min)
Hydraulic Tank Capacity
3.70 gal (US)
14.00 l
Operating Pressure Pivot
1015.00 psi
70.00 bar
Operating Pressure for the Work and Travel Hydraulics
2466.00 psi
170.00 bar

Chassis and Swivel Gear

Gradeability
30°/58%

Dozer Blade

Width
28.00 in
700.00 mm
Features

Compact Dimensions

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 Blade

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 Frame

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 Controls

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 Service

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.

Versatility

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.

Sales Features

Compact Dimensions

Easy site access

Performance and Durability

Powerful performance, Robust construction, Work tool ready

User Friendly Operation

Simple controls - Easily maintained

Customer Support

Low operating costs with excellent services and options
Standard Equipment
  • Adjustable vinyl seat
  • Auxiliary hydraulic circuit, with one-way (hammer) lines to stick
  • Boom mounted work light
  • Dozer blade, with side extensions
  • Ecology drain for hydraulic tank
  • Hydraulic extending undercarriage
  • Retractable seatbelt
  • Rubber belt track, 180 mm (7 in) wide
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
  • Hammer
  • Rotating beacon