The Cat® 308 CR Variable Angle Boom (VAB) Mini Excavator delivers maximum power and performance in a mini size to help you work in a wide range of applications. The Variable Angle Boom provides the maximum in linkage flexibility in tight applications.
Cat Exclusives in a Mini Excavator
with improved fuel efficiency and longer service intervals
with customizable operator settings and improvements in lift, swing, travel and multifunction
| Net Power | 70.3 HP 52.4 kW |
| Engine Model | Cat C3.3B Cat C3.3B |
| Displacement | 203 in³ 3.33 l |
| Bore | 3.7 in 94 mm |
| Gross Power - ISO 14396 | 74.3 HP 55.4 kW |
| Rated Net Power - 2,200 rpm - EU Stage V - ISO 9249/EEC 80/1269 | 71.5 HP 53.3 kW |
| Rated Net Power - 2,200 rpm - U.S. EPA Tier 4 Final - ISO 9249/EEC 80/1269 | 70.3 HP 52.4 kW |
| Stroke | 4.7 in 120 mm |
| Operating Weight | 20906 lb 9483 kg |
| Note | *Maximum Weight is based on steel tracks with rubber pads, counterweight, operator, full fuel tank, standard stick, blade and no bucket. *Maximum Weight is based on steel tracks with rubber pads, counterweight, operator, full fuel tank, standard stick, blade and no bucket. |
| Note (1) | *Minimum Weight is based on rubber tracks, no counterweight, operator, full fuel tank, standard stick, blade and no bucket. *Minimum Weight is based on rubber tracks, no counterweight, operator, full fuel tank, standard stick, blade and no bucket. |
| Maximum Operating Weight with Cab** | 20678 lb 9380 kg |
| Minimum Operating Weight with Cab* | 17960 lb 8146 kg |
| Maximum Operating Weight with Cab* | 20906 lb 9483 kg |
| Note (2) | **Maximum Weight is based on steel tracks with rubber pads, counterweight, operator, full fuel tank, long stick, blade and no bucket. **Maximum Weight is based on steel tracks with rubber pads, counterweight, operator, full fuel tank, long stick, blade and no bucket. |
| Dig Depth | 154.5 in 3925 mm |
| Tail Swing with Counterweight | 64.8 in 1645 mm |
| Maximum Blade Height | 14.5 in 369 mm |
| Track Belt/Shoe Width | 17.7 in 450 mm |
| Maximum Dump Clearance | 143.7 in 3649 mm |
| Vertical Wall | 133.4 in 3388 mm |
| Boom in Reach | 112.3 in 2853 mm |
| Ground Clearance | 13.7 in 349 mm |
| Swing Bearing Height | 28.9 in 735 mm |
| Boom Swing Right | 38 in 963 mm |
| Overall Track Width | 90.6 in 2300 mm |
| Overall Shipping Length | 235 in 5969 mm |
| Transport Height | 105.2 in 2673 mm |
| Cab Height | 99.2 in 2520 mm |
| Overall Undercarriage Length | 113.9 in 2892 mm |
| Maximum Reach | 260.3 in 6612 mm |
| Tail Swing without Counterweight | 57.1 in 1450 mm |
| Maximum Reach at Ground Level | 252 in 6402 mm |
| Stick Length | 71.8 in 1823 mm |
| Maximum Blade Depth | 16.1 in 408 mm |
| Boom Swing Left | 20 in 503 mm |
| Maximum Dig Height | 216.6 in 5500 mm |
| Height | 17 in 431 mm |
| Width - Wide | 96.5 in 2450 mm |
| Width - Standard | 90.6 in 2300 mm |
| Maximum Dig Height | 277.1 in 7038 mm |
| Maximum Reach | 300.7 in 7637 mm |
| Track Belt/Shoe Width | 17.7 in 450 mm |
| Tail Swing without Counterweight | 57.1 in 1450 mm |
| Dig Depth | 182.8 in 4644 mm |
| Ground Clearance | 13.7 in 349 mm |
| O/A Shipping Length | 262 in 6656 mm |
| Cab Height | 99.2 in 2520 mm |
| Vertical Wall | 134.1 in 3405 mm |
| Stick Length | 92.8 in 2358 mm |
| Maximum Blade Depth | 16.1 in 408 mm |
| Maximum Reach - Ground Level | 293.7 in 7461 mm |
| O/A Track Width | 90.6 in 2300 mm |
| Transport Height | 99.3 in 2522 mm |
| Boom Swing - Left | 20 in 503 mm |
| O/A Undercarriage Length | 113.9 in 2892 mm |
| Boom In Reach | 126.6 in 3215 mm |
| Tail Swing with Counterweight | 64.8 in 1645 mm |
| Boom Swing - Right | 38 in 963 mm |
| Maximum Blade Height | 14.5 in 369 mm |
| Swing Bearing - Height | 28.9 in 735 mm |
| Maximum Dump Clearance | 199.6 in 5071 mm |
| Dig Depth | 136.3 in 3462 mm |
| Overall Shipping Length | 282.7 in 7180 mm |
| Stick Length | 71.8 in 1823 mm |
| Track Belt/Shoe Width | 17.7 in 450 mm |
| Swing Bearing Height | 28.9 in 735 mm |
| Maximum Blade Depth | 16.1 in 408 mm |
| Maximum Reach at Ground Level | 305.1 in 7750 mm |
| Transport Height | 94.5 in 2399 mm |
| Boom in Reach | 117.9 in 2995 mm |
| Overall Undercarriage Length | 113.9 in 2892 mm |
| Maximum Reach | 311.8 in 7919 mm |
| Maximum Dump Clearance | 251.8 in 6396 mm |
| Ground Clearance | 13.7 in 349 mm |
| Vertical Wall | 138.5 in 3518 mm |
| Tail Swing with Counterweight | 64.8 in 1645 mm |
| Tail Swing without Counterweight | 57.1 in 1450 mm |
| Boom Swing Left | 20 in 503 mm |
| Maximum Blade Height | 14.5 in 369 mm |
| Cab Height | 99.2 in 2520 mm |
| Maximum Dig Height | 321.9 in 8177 mm |
| Boom Swing Right | 38 in 963 mm |
| Overall Track Width | 90.6 in 2300 mm |
| Boom In Reach | 120.4 in 3059 mm |
| Tail Swing with Counterweight | 64.8 in 1645 mm |
| Maximum Reach - Ground Level | 273.6 in 6949 mm |
| Swing Bearing - Height | 28.9 in 735 mm |
| Track Belt/Shoe Width | 17.7 in 450 mm |
| Ground Clearance | 13.7 in 349 mm |
| Maximum Dump Clearance | 187.4 in 4759 mm |
| Transport Height | 97.9 in 2487 mm |
| Boom Swing - Left | 20 in 503 mm |
| Maximum Blade Depth | 16.1 in 408 mm |
| Tail Swing without Counterweight | 57.1 in 1450 mm |
| Cab Height | 99.2 in 2520 mm |
| Maximum Blade Height | 14.5 in 369 mm |
| Maximum Dig Height | 265.2 in 6735 mm |
| Maximum Reach | 281.1 in 7141 mm |
| O/A Track Width | 90.6 in 2300 mm |
| O/A Undercarriage Length | 113.9 in 2892 mm |
| Vertical Wall | 117.8 in 2992 mm |
| O/A Shipping Length | 258.7 in 6571 mm |
| Stick Length | 71.8 in 1823 mm |
| Boom Swing - Right | 38 in 963 mm |
| Dig Depth | 161.8 in 4109 mm |
| Auxiliary Circuit - Secondary - Pressure | 4134 psi 285 bar |
| Auxiliary Circuit - Primary - Pressure | 4134 psi 285 bar |
| Digging Force - Bucket | 13946 lb 62 kN |
| Operating Pressure - Equipment | 4134 psi 285 bar |
| Auxiliary Circuit - Primary - Flow | 35 gal/min 131 l/min |
| Pump Flow at 2,400 rpm | 44 gal/min 167 l/min |
| Operating Pressure - Travel | 4134 psi 285 bar |
| Auxiliary Circuit - Secondary - Flow | 9 gal/min 33 l/min |
| Digging Force - Stick - Long | 8032 lb 35.7 kN |
| Digging Force - Stick - Standard | 9205 lb 40.9 kN |
| Type | Load Sensing Hydraulics with Variable Displacement Piston Pump Load Sensing Hydraulics with Variable Displacement Piston Pump |
| Operating Pressure - Swing | 3626 psi 250 bar |
| Tip Over Protective Structure (TOPS) | ISO 12117:1997 ISO 12117:1997 |
| Roll Over Protective Structure (ROPS) | ISO 12117-2:2008 ISO 12117-2:2008 |
| Top Guard | ISO 10262:1998 (Level II) ISO 10262:1998 (Level II) |
| Maximum Traction Force - High Speed | 6250 lb 27.8 kN |
| Travel Speed - Low | 1.9 mile/h 3.1 km/h |
| Ground Pressure - Maximum Weight | 6 psi 41.16 kPa |
| Travel Speed - High | 3.2 mile/h 5.1 km/h |
| Gradeability - Maximum | 30 degrees 30 degrees |
| Ground Pressure - Minimum Weight | 5 psi 35.36 kPa |
| Maximum Traction Force - Low Speed | 15175 lb 67.5 kN |
| Operator Sound Pressure (ISO 6396:2008) | 72 dB(A) 72 dB(A) |
| Note | European Union Directive “2000/14/EC” European Union Directive “2000/14/EC” |
| Average Exterior Sound Pressure (ISO 6395:2008) | 99 dB(A) 99 dB(A) |
| Counterweight | 552 lb 250 kg |
| Steel Tracks with Pads | 728 lb 330 kg |
| Long Stick | 146 lb 66 kg |
| Engine Oil | 3 gal (US) 11.2 l |
| Cooling System | 2.6 gal (US) 10 l |
| Hydraulic System | 28 gal (US) 107 l |
| Hydraulic Tank | 14 gal (US) 53 l |
| Fuel Tank | 39 gal (US) 147 l |
| Air Conditioning | The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1 kg of refrigerant which has a CO2 equivalent of 1.430 metric tonnes. The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1 kg of refrigerant which has a CO2 equivalent of 1.430 metric tonnes. |
| Machine Swing Speed | 10.6 r/min 10.6 r/min |
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Cat® Product Link™ wirelessly connects you to your equipment giving you valuable insight into how your machine or fleet is performing. Information such as location, hours, fuel usage, productivity, idle time, and diagnostic codes are made available through online web applications so that you can make timely, fact-based decisions to maximize efficiency, improve productivity, and lower the cost of owning and operating your fleet. Available with satellite or cellular connectivity.
Cat® Product Link™ wirelessly connects you to your equipment giving you valuable insight into how your machine or fleet is performing. Information such as location, hours, fuel usage, productivity, idle time, and diagnostic codes are made available through online web applications so that you can make timely, fact-based decisions to maximize efficiency, improve productivity, and lower the cost of owning and operating your fleet. Available with satellite or cellular connectivity.
