At a glance data:
Engine Model:
Cat® C2.8 Turbo
Overview
The Cat® 309 CR Mini Excavator delivers maximum power and performance in a mini size to help you work in a wide range of applications.
Category:
Mini Excavators
Category:
Mini Excavators
Brand:
Cat
Brand:
Cat
Engine
Net Power:
69hp
Engine Model:
Cat® C2.8 Turbo
Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC:
69hp
Gross Power - ISO 14396:
55.4kW
Bore:
3.5in
Stroke:
4.3in
Displacement:
171in³
Note:
Meets U.S. EPA Tier 4 Final and EU Stage V emissions standards.
Note (1):
Advertised power is tested per the specified standard in effect at the time of manufacture.
Note (2):
Net power advertised is the power available at the flywheel when the engine is at the rated speed of 2,400 rpm and the engine is installed with the factory configured fan, air intake system, exhaust system and alternator with a minimum alternator load.
Weights
Operating Weight:
20870lb
Minimum Operating Weight with Cab*:
18886lb
Maximum Operating Weight with Cab**:
20870lb
Note (1):
*Minimum Weight is based on steel tracks, no counterweight, operator, full fuel tank, standard stick, blade and no bucket.
Note (2):
**Maximum Weight is based on steel tracks with rubber pads, counterweight, operator, full fuel tank, long stick, blade and no bucket.
Weight Increase from Minimum Configuration
Counterweight:
552lb
Long Stick:
146lb
Steel Tracks with Pads:
728lb
Travel System
Travel Speed - High:
3.1mile/h
Travel Speed - Low:
1.6mile/h
Maximum Traction Force - High Speed:
6497lb
Maximum Traction Force - Low Speed:
19064lb
Ground Pressure - Minimum Weight:
5.4psi
Ground Pressure - Maximum Weight:
6psi
Gradeability - Maximum:
30 degrees
Service Refill Capacities
Cooling System:
2.6gal (US)
Engine Oil:
2.3gal (US)
Fuel Tank:
39gal (US)
Hydraulic Tank:
14gal (US)
Hydraulic System:
29gal (US)
Hydraulic System
Type:
Load Sensing Hydraulics with Variable Displacement Piston Pump
Pump Flow at 2,400 rpm:
62gpm
Operating Pressure - Equipment:
4134psi
Operating Pressure - Travel:
4134psi
Operating Pressure - Swing:
3626psi
Maximum Auxiliary Circuit - Primary - Flow at Pump:
35gpm
Maximum Auxiliary Circuit - Primary - Pressure at Pump:
4134psi
Maximum Auxiliary Circuit - High Flow - Flow at Pump:
37gpm
Maximum Auxiliary Circuit - High Flow - Pressure at Pump:
4134lbf/in
Digging Force - Stick - Standard:
9500lb
Digging Force - Stick - Long:
8023lb
Digging Force - Bucket:
13943lb
Note:
Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Swing System
Machine Swing Speed:
10r/min
Boom Swing - Left:
60 degrees
Boom Swing - Right:
50 degrees
Blade
Width - Standard:
97in
Width - Wide:
104in
Height:
17in
Certification - Cab
Roll Over Protective Structure (ROPS):
ISO 12117-2:2008
Top Guard:
ISO 10262:1998 (Level I)
Dimensions - Standard Stick
Dig Depth:
161.7in
Vertical Wall:
117.8in
Maximum Reach - Ground Level:
273.6in
Maximum Reach:
281.1in
Maximum Dig Height:
265.2in
Maximum Dump Clearance:
187.4in
Boom In Reach:
120.4in
Tail Swing with Counterweight:
62.4in
Tail Swing without Counterweight:
57.1in
Maximum Blade Height:
16.1in
Maximum Blade Depth:
26in
Height - Boom Transport - No Tools*:
95.7in
Height - Boom Working - With Tools**:
104.7in
Cab Height:
100in
Swing Bearing - Height:
29.7in
O/A Undercarriage Length:
126in
Overall Shipping Length - with Counterweight:
266.7in
Overall Shipping Length - without Counterweight:
266.7in
Track Belt/Shoe Width:
17.7in
O/A Track Width:
97.2in
Ground Clearance:
14in
Stick Length:
71.8in
Note:
*Boom Height when stick is pinned in transport position with no attachments.
Note (1):
**Boom Height when stick is pinned in working position with attachments Standard Stick offers only one pin position.
Note (2):
***With blade positioned at the rear of the machine.
Dimensions - Long Stick
Dig Depth:
182.8in
Vertical Wall:
134in
Maximum Reach - Ground Level:
293.7in
Maximum Reach:
300.7in
Maximum Dig Height:
277.1in
Maximum Dump Clearance:
199.7in
Boom In Reach:
126.6in
Tail Swing with Counterweight:
62.4in
Tail Swing without Counterweight:
57.1in
Maximum Blade Height:
16.1in
Maximum Blade Depth:
26in
Height - Boom Transport - No Tools*:
89in
Height - Boom Working - With Tools**:
120.1in
Cab Height:
100in
Swing Bearing - Height:
29.7in
O/A Undercarriage Length:
126in
Overall Shipping Length - with Counterweight:
7052 mm (277.6 in)***
Overall Shipping Length - without Counterweight:
7052 mm (277.6 in)***
Track Belt/Shoe Width:
17.7in
O/A Track Width:
97.2in
Ground Clearance:
14in
Stick Length:
92.8in
Note:
*Boom Height when stick is pinned in transport position with no attachments.
Note (1):
**Boom Height when stick is pinned in working position with attachments Standard Stick offers only one pin position.
Note (2):
***With blade positioned at the rear of the machine.
Air Conditioning System
Air Conditioning:
The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf (Europe) (Global Warming Potential = 1430). See label or instruction manual for gas refrigerant identification. The system contains 0.75 kg (1.65 lb), 0.90 kg (1.98 lb) or 1.0 kg (2.20 lb) of refrigerant which has a CO2 equivalent of 1.430 metric tonnes (1.576 tons) for R134a and 0.001 tonnes (0.001 tons) for R1234yf (Europe).
Sound
Operator Sound Pressure (ISO 6396:2008):
72dB(A)
Average Exterior Sound Pressure (ISO 6395:2008):
99dB(A)
Note:
European Union Directive "2000/14/EC"
Sustainability
Recyclability:
96%
Specifications
Note:
The 309 CR specifications are based on a machine configured with a Long (L) Undercarriage.
Standard Equipment
engine
- Cat C2.8 Diesel Engine (U.S. EPA Tier 4 Final/EU Stage V) – Electronic Engine, Turbo, Fit-For-Life Diesel Particulate Filter (DPF) and Diesel Oxidation Catalyst (DOC) Aftertreatment System
- Automatic Engine Idle
- Automatic Engine Shutdown
- Automatic Swing Brake
- Automatic Two Speed Travel
- Fuel Water Separator with Indicator
- Radial Seal – Double Element Air Filter
- Extended Life Coolant, –37° C (–35° F)
hydraulics
- Electronic Variable Displacement Piston Pump
- Load Sensing/Flow Sharing Hydraulics
- Dedicated Auxiliary Hydraulic Pump
- Power On Demand
- Hydraulic Temperature Monitoring
- Certified Accumulator
- HYDO Advanced Hydraulic Oil
- Ecology Drain
operator environment
- Top Guard ISO 10262:1998 (Level I)
- ROPS ISO 12117-2:2008
- Stick Steer Mode
- Travel Cruise Control
- Control Pattern Changer
- Adjustable Wrist Rests
- Molded Footrests
- Removable, Washable Floor Mat
- Travel Pedals and Hand Levers
- Cat Key with Passcode Option
- HVAC with Automatic Temperature Control
- Hydraulic Lockout Controls
- Integrated Lower Front Window
- Assisted Front Window Overhead Storage
- Rear Window Emergency Exit
- Cab Mirrors (vary by region)
- Fabric, High Back, Suspension Seat
- Retractable Seat Belt (75 mm/3 in)
- Coat Hook
- Cup Holder
- LED Interior Light
- Literature Holder
- Mounting Bosses for Top and Front Guards
- 12V Power Socket
- Radio – Bluetooth, Auxiliary, Microphone, USB (charging only)
- Skylight
- Signaling/Warning Horn
- Cab and (left side) Boom Work Lights
- Utility Space for Mobile Phone
- Next Generation Color LCD Monitor (IP66)
– Jog Dial Interface
– Fuel Level and Coolant Temperature Gauges
– Maintenance and Machine Monitoring
– Performance and Machine Adjustments
– Numeric Security Code
– Multiple Languages
– Camera Ready (IP68 & IP69K)
– Hour Meter with Wake Up Switch
technology (availability varies by region)
- Product Link™ Elite (regulations apply)
undercarriage
- Greased and Lubricated Track
- Tie Down Eyes on Track Frame
- Dozer Blade
- Dozer Float
- Bolt-on, Reversible Wear Edge
boom, stick and linkages
- One Piece Boom (3400 mm/133.9 in)
- Standard Stick (1820 mm/71.7 in)
- Front Shovel Capable – Pin-on/Manual Coupler/Hydraulic Coupler (not available in all regions)
- Thumb Ready (not available in all regions)
electrical
- 12 Volt Electrical System
- 60 Ampere Alternator
- Circuit Breaker
- 900 CCA Maintenance Free Battery
- Lock Out/Tag Out Battery Disconnect
- Ignition Key Stop Switch
- Travel Alarm
guarding
- ROPS ISO 12117-2:2008
- Top Guard ISO 10262:1998 (Level I)
other
- Locks on External Enclosure Doors
- Lockable Fuel Cap
- Beacon Socket
- Rear Reflectors
Optional Equipment
hydraulics
- Third Auxiliary
operator environment
- Push to Start with Bluetooth® Key
- Air Suspension Heated Seat
- Seat Belt Reminder System
- Rain Visor
- Next Generation Advanced Monitor (below are all included with Next Generation Advanced Monitor option)
– Touch Screen
– Site Reference System
– High Definition Camera Capable (IP68 & IP69K)
– Numeric Security Code
technology (availability varies by region)
- Ease of Use Indicate
- Ease of Use E-Fence
- Ease of Use Laser Catcher
- Cat Grade Advanced 2D
- Cat Grade 3D
undercarriage
- Wide Dozer Blade
- Steel Tracks (450 mm/17.7 in wide)
- Wide Steel Tracks (600 mm/23.6 in)
- Steel Track with Rubber Pads
- Track Guides
boom, stick and linkages
- Long Stick (2360 mm/92.9 in)
- Attachments including Buckets, Augers and Hammers
- 2nd Auxiliary Hydraulic Lines with Case Drain
- Boom Lowering Check Valve
- Stick Lowering Check Valve
- Certified Lifting Eye
electrical
- Rear and Side Camera
- Rotating Beacon
guarding
- Top Guard ISO 10262:1998 (Level II)
- Front Guard (Mesh) ISO 10262:1998 (Level I)
- Front Guard (Heavy Duty) ISO 10262:1998 (Level II)
- Track Guards
other
- Counterweight (250 kg/551 lb)
- Counterweight (500 kg/1103 lb)
- Water Jacket Heater
- Refueling Pump
- Variable Angle Boom (refer to 309 CR VAB brochure for VAB specs and additional information)
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