Contact Us

308 CR (Fixed Boom) Mini Hydraulic Excavator

308 CR (Fixed Boom)

Mini Hydraulic Excavator

Price: Request a Quote for Pricing

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.

Key Specs
Net Power 69 hp
Operating Weight 18659 lb
Dig Depth 185 in
Request a Quote Get Financing

Product Specifications for 308 CR (Fixed Boom)

Net Power 69 hp
Engine Model Cat® C2.8 Turbo
Net Power – 2,400 rpm – ISO 9249, 80/1269/EEC 69 hp
Gross Power – ISO 14396 74.3 hp
Bore 3.5 in
Stroke 4.3 in
Displacement 171 in³
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.
Operating Weight 18659 lb
Minimum Operating Weight with Cab* 16707 lb
Maximum Operating Weight with Cab** 18659 lb
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.
Dig Depth 185 in
Vertical Wall 162 in
Maximum Reach – Ground Level 266 in
Maximum Reach 272 in
Maximum Dig Height 307 in
Maximum Dump Clearance 223 in
Boom In Reach 89 in
Tail Swing with Counterweight 56 in
Tail Swing without Counterweight 51 in
Maximum Blade Height 14.6 in
Maximum Blade Depth 16 in
Height – Boom Transport – No Tools* 100 in
Height – Boom Working – With Tools** 121 in
Cab Height 100 in
Swing Bearing – Height 30 in
O/A Undercarriage Length 113 in
Overall Shipping Length – with Counterweight 5800 mm (228 in)***
Overall Shipping Length – without Counterweight 5665 mm (223 in)***
Track Belt/Shoe Width 18 in
O/A Track Width 91 in
Ground Clearance 14 in
Stick Length 87 in
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.
Dig Depth 163 in
Vertical Wall 142 in
Maximum Reach – Ground Level 246 in
Maximum Reach 252 in
Maximum Dig Height 291 in
Maximum Dump Clearance 207 in
Boom In Reach 66 in
Tail Swing with Counterweight 56 in
Tail Swing without Counterweight 51 in
Maximum Blade Height 14.6 in
Maximum Blade Depth 16 in
Height – Boom Transport – No Tools* 97 in
Height – Boom Working – With Tools** 105 in
Cab Height 100 in
Swing Bearing – Height 30 in
O/A Undercarriage Length 113 in
Overall Shipping Length – with Counterweight 228 in
Overall Shipping Length – without Counterweight 222 in
Track Belt/Shoe Width 18 in
O/A Track Width 91 in
Ground Clearance 14 in
Stick Length 66 in
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.
Counterweight 551 lb
Long Stick 187 lb
Steel Tracks with Pads 662 lb
Travel Speed – High 3 mile/h
Travel Speed – Low 1.8 mile/h
Maximum Traction Force – High Speed 6587 lbf
Maximum Traction Force – Low Speed 15962 lbf
Ground Pressure – Minimum Weight 4.8 psi
Ground Pressure – Maximum Weight 5.4 psi
Gradeability – Maximum 30 degrees
Cooling System 2.6 gal (US)
Engine Oil 2.3 gal (US)
Fuel Tank 38 gal (US)
Hydraulic Tank 14 gal (US)
Hydraulic System 29 gal (US)
Type Load Sensing Hydraulics with Variable Displacement Piston Pump
Pump Flow at 2,400 rpm 44 gpm
Operating Pressure – Equipment 4134 psi
Operating Pressure – Travel 4134 psi
Operating Pressure – Swing 3626 psi
Maximum Auxiliary Circuit – Primary – Flow at Pump 35 gpm
Maximum Auxiliary Circuit – Primary – Pressure at Pump 4134 psi
Maximum Auxiliary Circuit – Secondary – Flow at Pump 9 gpm
Maximum Auxiliary Circuit – Secondary – Pressure at Pump 4134 psi
Digging Force – Stick – Standard 9285 lbf
Digging Force – Stick – Long 8250 lbf
Digging Force – Bucket 13241 lbf
Note Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Machine Swing Speed 10 r/min
Width – Standard 90.6 in
Width – Wide 96.5 in
Height 17 in
Roll Over Protective Structure (ROPS) ISO 12117-2:2008
Top Guard ISO 10262:1998 (Level I)
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
Operator Sound Pressure (ISO 6396:2008) 72 dB(A)
Average Exterior Sound Pressure (ISO 6395:2008) 99 dB(A)
Note European Union Directive “2000/14/EC”
Recyclability 96%