At a glance data:
Engine Model:
Cat C3.3B
Overview
The Cat® 308 CR Mini Excavator delivers maximum power and performance in a mini size to help you work in a wide range of applications.
Engine
Net Power:
69.5hp
Engine Model:
Cat C3.3B
Stroke:
4.7in
Bore:
3.7in
Gross Power - SAE J1995:
74.3hp
Displacement:
203in³
Rated Net Power - 2,200 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/1269:
69.5hp
Weights
Operating Weight:
20077lb
Note (1):
*Minimum Weight is based on rubber 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.
Maximum Operating Weight with Cab**:
20077lb
Minimum Operating Weight with Cab*:
18610lb
Weight Increase from Minimum Configuration
Steel Tracks with Pads:
752lb
Counterweight:
552lb
Long Stick:
146lb
Travel System
Maximum Traction Force - High Speed:
6250lb
Ground Pressure - Maximum Weight:
5.8psi
Ground Pressure - Minimum Weight:
5.4psi
Travel Speed - High:
3.2mile/h
Travel Speed - Low:
1.9mile/h
Maximum Traction Force - Low Speed:
15175lb
Gradeability - Maximum:
30 degrees
Service Refill Capacities
Fuel Tank:
39gal (US)
Hydraulic System:
29gal (US)
Hydraulic Tank:
14gal (US)
Cooling System:
2.6gal (US)
Engine Oil:
3gal (US)
Hydraulic System
Digging Force - Bucket:
13946lb
Operating Pressure - Travel:
4134psi
Operating Pressure - Swing:
3626psi
Operating Pressure - Equipment:
4134psi
Digging Force - Stick - Long:
8032lb
Type:
Load Sensing Hydraulics with Variable Displacement Piston Pump
Note:
Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Pump Flow at 2,400 rpm:
44gal/min
Digging Force - Stick - Standard:
9509lb
Maximum Auxiliary Circuit - Primary - Pressure at Pump:
4134psi
Maximum Auxiliary Circuit - Secondary - Pressure at Pump:
4134psi
Maximum Auxiliary Circuit - Primary - Flow at Pump:
35gal/min
Maximum Auxiliary Circuit - Secondary - Flow at Pump:
9gal/min
Swing System
Machine Swing Speed:
10.6r/min
Boom Swing - Right:
50 degrees
Blade
Height:
17in
Width - Standard:
90.6in
Width - Wide:
96.5in
Certification - Cab
Top Guard:
ISO 10262:1998 (Level I)
Roll Over Protective Structure (ROPS):
ISO 12117-2:2008
Tip Over Protective Structure (TOPS):
ISO 12117:1997
Sound
Operator Sound Pressure (ISO 6396:2008):
72dB(A)
Note:
European Union Directive "2000/14/EC"
Average Exterior Sound Pressure (ISO 6395:2008):
99dB(A)
Dimensions - Standard Stick
Cab Height:
100in
Vertical Wall:
117.8in
Boom In Reach:
120.4in
Tail Swing with Counterweight:
62.4in
Boom Swing - Right:
36.8in
Track Belt/Shoe Width:
17.7in
Maximum Reach:
281.1in
Stick Length:
71.7in
Maximum Blade Height:
14.6in
Boom Swing - Left:
23.8in
Maximum Blade Depth:
16in
O/A Track Width:
90.6in
Maximum Dig Height:
265.2in
Maximum Dump Clearance:
187.4in
Maximum Reach - Ground Level:
273.6in
Tail Swing without Counterweight:
57.1in
O/A Undercarriage Length:
113.4in
Swing Bearing - Height:
29.7in
Ground Clearance:
13.8in
Dig Depth:
161.7in
Note:
*Boom Height when stick is pinned in transport position with no attachments.
Overall Shipping Length - with Counterweight:
264in
Note (1):
**Boom Height when stick is pinned in working position with attachments. Standard Stick offers only one pin position.
Overall Shipping Length - without Counterweight:
258.8in
Note (2):
***With blade positioned at the rear of the machine.
Height - Boom Working - With Tools**:
104.7in
Height - Boom Transport - No Tools*:
95.7in
Dimensions - Long Stick
Dig Depth:
182.8in
Boom Swing - Left:
23.8in
Maximum Dig Height:
277.1in
Maximum Blade Height:
14.6in
Track Belt/Shoe Width:
17.7in
Cab Height:
100in
Tail Swing with Counterweight:
62.4in
O/A Undercarriage Length:
113.4in
Maximum Dump Clearance:
199.7in
Boom Swing - Right:
36.8in
Maximum Blade Depth:
16in
Ground Clearance:
13.8in
Stick Length:
92.8in
Maximum Reach:
300.7in
Maximum Reach - Ground Level:
293.7in
Boom In Reach:
126.6in
Swing Bearing - Height:
29.7in
O/A Track Width:
90.6in
Tail Swing without Counterweight:
57.1in
Vertical Wall:
134in
Note:
*Boom Height when stick is pinned in transport position with no attachments.
Note (2):
***With blade positioned at the rear of the machine.
Note (1):
**Boom Height when stick is pinned in working position with attachments. Standard Stick offers only one pin position.
Height - Boom Transport - No Tools*:
89in
Height - Boom Working - With Tools**:
120.1in
Overall Shipping Length - without Counterweight:
6872 mm (270.6 in)***
Overall Shipping Length - with Counterweight:
6872 mm (270.6 in)***
Air Conditioning System
Air Conditioning:
The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.0 kg of refrigerant which has a CO2 equivalent of 1.430 metric tonnes.
Swing System
Boom Swing - Left:
60 degrees
Sustainability
Recyclability:
96%
Standard Equipment
engine
- Cat C3.3B Diesel Engine (U.S. EPA Tier 4 Final/EU Stage V) – Electronic Engine, Turbo, Diesel Particulate Filter (DPF)
- 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
- Power On Demand
- Hydraulic Temperature Monitoring
- Certified Accumulator
- HYDO Advanced Hydraulic Oil
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
- 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
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
- Battery Disconnect
- Ignition Key Stop Switch
other
- Locks on External Enclosure Doors
- Lockable Fuel Cap
- Beacon Socket
- Rear Reflectors
Optional Equipment
operator environment
- Push to Start with Bluetooth® Key
- Air Suspension Heated Seat
- 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
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
- Boom Lowering Check Valve
- Stick Lowering Check Valve
- Certified Lifting Eye
electrical
- Product Link™ Elite (regulations apply)
- Travel Alarm
- Rearview Camera
- Rotating Beacon
guarding
- Mesh Front Guard ISO 10262 1998 Level I
- Heavy Duty Front Guard ISO 10262 1998 Level II
- Overhead Cab Guard ISO 10262 1998 Level II
- Polycarbonate Front Window EN356 P5A
- Track Guards
other
- Additional Counterweight
- Water Jacket Heater
- Refueling Pump
- Variable Angle Boom (refer to 308 CR VAB brochure for VAB specs and additional information)
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