Skip to content
305 CR Mini Hydraulic Excavator

305 CR Mini Hydraulic Excavator

Mini Excavators Inspired by Our Customers

Get a quote

More Comfort – More Performance – More Versatility

  • 4 Industry First Features

    Cat Exclusives in a Mini Excavator

  • Up to 10% Lower Total Ownership Costs

    with extended service intervals, lower repair costs and easy service access

  • Up to 20% More Performance

    in lifting, digging and multi-function capability

Engine

Bore 3.3 in
Displacement 101 in³
Emissions The Cat® C1.7 engine meets U.S. EPA Tier 4 Final and EU Stage V emission standards.
Engine Model C1.7 Turbo
Gross Power - 2,400 rpm - SAE J1995:2014 48.4 HP
Net Power 45 HP
Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC 45 HP
Note Advertised power is tested per the specified standard in effect at the time of manufacture.
Stroke 3.9 in

Weights

Maximum Operating Weight with Cab** 12688 lb
Maximum Operating Weight with Canopy** 12469 lb
Minimum Operating Weight with Cab* 11234 lb
Minimum Operating Weight with Canopy* 11016 lb
Note (1) *Minimum Weight is based on rubber tracks, operator, full fuel tank, standard stick, straight blade, no bucket and no extra counterweight.
Note (2) **Maximum Weight is based on steel tracks with pads, operator, full fuel tank, long stick, straight blade, extra counterweight and no bucket.
Operating Weight 12688 lb

Dimensions - Long Stick

Boom Height - Shipping Position 74.6 in
Boom In Reach 101.6 in
Boom Swing - Left 615 mm
Boom Swing - Right 34.1 °
Dig Depth 144.5 in
Ground Clearance 13.2 in
Maximum Blade Depth 23.4 in
Maximum Blade Height 15.2 in
Maximum Dig Height 210.8 in
Maximum Dump Clearance 151.4 in
Maximum Reach 235.8 in
Maximum Reach - Ground Level 229.7 in
Note *Overall Shipping Length depends on blade position during shipment.
O/A Shipping Height 100.4 in
O/A Undercarriage Length 101.6 in
Overall Shipping Length* 210.2 in
Stick Length 63 in
Swing Bearing - Height 24.4 in
Tail Swing with Counterweight 47.2 in
Tail Swing without Counterweight 43.1 in
Track Belt/Shoe Width 15.7 in
Track Width 78 in
Vertical Wall 100.8 in

Swing System

Boom Swing - Left 72 Degrees
Boom Swing - Right 50 Degrees
Machine Swing Speed 9 r/min

Dimensions - Standard Stick

Boom Height - Shipping Position 71.7 in
Boom In Reach 101.2 in
Boom Swing - Left 24.2 °
Boom Swing - Right 34.1 °
Dig Depth 134.6 in
Ground Clearance 13.2 in
Maximum Blade Depth 23.4 in
Maximum Blade Height 15.2 in
Maximum Dig Height 205.3 in
Maximum Dump Clearance 145.7 in
Maximum Reach 226.6 in
Maximum Reach - Ground Level 220.1 in
Note *Overall Shipping Length depends on blade position during shipment.
O/A Shipping Height 100.4 in
O/A Undercarriage Length 101.6 in
Overall Shipping Length* 208.9 in
Stick Length 53.2 in
Swing Bearing - Height 24.4 in
Tail Swing with Counterweight 47.2 in
Tail Swing without Counterweight 43.1 in
Track Belt/Shoe Width 15.7 in
Vertical Wall 91.9 in

Service Refill Capacities

Cooling System 2.9 gal (US)
Engine Oil 1.6 gal (US)
Fuel Tank 17 gal (US)
Hydraulic System 20 gal (US)
Hydraulic Tank 16 gal (US)

Travel System

Gradeability - Maximum 30 degrees
Ground Pressure - Maximum Weight 4.7 psi
Ground Pressure - Minimum Weight 4 psi
Maximum Traction Force - High Speed 5553 lbf
Maximum Traction Force - Low Speed 11353 lbf
Travel Speed - High 3.1 mile/h
Travel Speed - Low 1.7 mile/h

Blade

Angle Blade - Left 25 degrees
Angle Blade - Right 25 degrees
Angle Blade Height 15.7 in
Angle Blade Width 78 in
Straight Blade Height 15.4 in
Straight Blade Width 78 in

Sound

Average Exterior Sound Pressure (ISO 6395:2008) 99 dB(A)
Note *The declared dynamic operator sound pressure levels per ISO 6396:2008. The measurements were conducted with the cab doors and windows closed. **The labeled sound power level for the CE marked configurations when measured according to the test procedure and conditions specified in 2000/14/EC.
Operator Sound Pressure (ISO 6396:2008) 72 dB(A)

Hydraulic System

Auxiliary Circuit - Primary - Flow 21 gal/min
Auxiliary Circuit - Primary - Pressure 3843 psi
Auxiliary Circuit - Secondary - Flow 7 gal/min
Auxiliary Circuit - Secondary - Pressure 3843 psi
Digging Force - Bucket 11061 lbf
Digging Force - Stick - Long 5665 lbf
Digging Force - Stick - Standard 6362 lbf
Note Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Operating Pressure - Equipment 3843 psi
Operating Pressure - Swing 2901 psi
Operating Pressure - Travel 3843 psi
Pump Flow at 2,400 rpm 35 gal/min
Type Load Sensing Hydraulics with Variable Displacement Piston Pump

Certification - Cab and Canopy

Roll Over Protective Structure (ROPS) ISO 12117-2:2008
Tip Over Protective Structure (TOPS) ISO 12117:1997
Top Guard ISO 10262:1998 Level I

Weight Increase from Minimum Configuration

Angle Blade 225 lb
Counterweight 534 lb
Long Stick 75 lb
Steel Tracks with Pads 827 lb

Sustainability

Recyclability 96%

Download resources

305 CR Small Product Brochure (NACD)
Cat Mini Hydraulic Excavators Product Line Brochure (North America)
Options And Accessories Kit Guide for Mini Hydraulic Excavators
Cat Attachments for Mini Excavators Brochure
Attachment Compatibility Guide for Mini Excavators

Get info about our financing options

Get The best solution for your job site needs

Let us help.

Name(Required)
Untitled

Related Products

S308 Mobile Scrap & Demolition Shear
S308 Mobile Scrap & Demolition Shear
676 mm (27 in) Ripper
676 mm (27 in) Ripper
1300 mm (51 in) Pallet Fork Carriage
1300 mm (51 in) Pallet Fork Carriage
HMF110 Flail Mower
HMF110 Flail Mower
Hydraulic Dual Lock™ Pin Grabber Coupler For 5 Ton Mini Excavators
Hydraulic Dual Lock™ Pin Grabber Coupler For 5 Ton Mini Excavators
914 mm (36 in) Heavy Duty Capacity Bucket
914 mm (36 in) Heavy Duty Capacity Bucket
762 mm (30 in) Heavy Duty Capacity Bucket
762 mm (30 in) Heavy Duty Capacity Bucket
619 mm (24 in) Heavy Duty Capacity Bucket
619 mm (24 in) Heavy Duty Capacity Bucket
508 mm (20 in) Heavy Duty Capacity Bucket
508 mm (20 in) Heavy Duty Capacity Bucket
457 mm (18 in) Heavy Duty Capacity Bucket
457 mm (18 in) Heavy Duty Capacity Bucket
406 mm (16 in) Heavy Duty Capacity Bucket
406 mm (16 in) Heavy Duty Capacity Bucket
305 mm (12 in) Heavy Duty Capacity Bucket
305 mm (12 in) Heavy Duty Capacity Bucket
914 mm (36 in) Heavy Duty Bucket
914 mm (36 in) Heavy Duty Bucket
762 mm (30 in) Heavy Duty Bucket
762 mm (30 in) Heavy Duty Bucket
619 mm (24 in) Heavy Duty Bucket
619 mm (24 in) Heavy Duty Bucket
508 mm (20 in) Heavy Duty Bucket
508 mm (20 in) Heavy Duty Bucket
457 mm (18 in) Heavy Duty Bucket
457 mm (18 in) Heavy Duty Bucket
406 mm (16 in) Heavy Duty Bucket
406 mm (16 in) Heavy Duty Bucket
305 mm (12 in) Heavy Duty Bucket
305 mm (12 in) Heavy Duty Bucket
1500 mm (59 in) Grading Bucket
1500 mm (59 in) Grading Bucket
1200 mm (47 in) Grading Bucket
1200 mm (47 in) Grading Bucket
1600 mm (63 in) Ditch Cleaning Bucket
1600 mm (63 in) Ditch Cleaning Bucket
1300 mm (51 in) Ditch Cleaning Bucket
1300 mm (51 in) Ditch Cleaning Bucket
1000 mm (39 in) Ditch Cleaning Bucket
1000 mm (39 in) Ditch Cleaning Bucket
A68 Auger
A68 Auger
A41 Auger
A41 Auger

Call us today: 1-877-778-2230
or  Send us a message