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310 Mini Hydraulic Excavator

310 Mini Hydraulic Excavator

At a Glance

Net Power
69.5 HP
Operating Weight
22451 lb
Dig Depth
205.2 in
17 in
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The Cat® 310 Mini Excavator delivers maximum power and performance in a mini size to help you work in a wide range of applications.


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Net Power 69.5HP
Stroke 4.7in
Net Power - 2,200 rpm - ISO 9249:2007, 80/1269/EEC 69.5HP
Engine Model - U.S. EPA Tier 4 Final/EU Stage V Cat® C3.3B
Bore 3.7in
Displacement 203in³
Gross Power - SAE J1995:2014 74.3HP
Note Net power advertised is the power available at the flywheel when the engine is equipped with air cleaner, exhaust system and fan.


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Operating Weight 22451lb
Note (2) **Maximum Weight is based on steel tracks with rubber pads, counterweight, operator, full fuel tank, long stick, blade and no bucket.
Note (1) *Minimum Weight is based on steel tracks, no counterweight, operator, full fuel tank, long stick, blade and no bucket.
Minimum Operating Weight with Cab* 21170lb
Maximum Operating Weight with Cab** 22451lb


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Dig Depth 205.2in


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Height 17in
Width - Standard 97.2in
Width - Wide 103.9in

Weight Increase from Minimum Configuration

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Steel Tracks with Pads 728lb
Counterweight 552lb

Travel System

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Travel Speed - Low 1.6mile/h
Travel Speed - High 3.1mile/h
Maximum Traction Force - Low Speed 19064lb
Maximum Traction Force - High Speed 6497lb
Ground Pressure - Minimum Weight 6psi
Ground Pressure - Maximum Weight 6.4psi
Gradeability - Maximum 30 degrees

Swing System

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Machine Swing Speed 10.6r/min


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Operator Sound Pressure (ISO 6396:2008) 72dB(A)
Note European Union Directive "2000/14/EC"
Average Exterior Sound Pressure (ISO 6395:2008) 99dB(A)

Service Refill Capacities

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Hydraulic Tank 14gal (US)
Hydraulic System 37gal (US)
Fuel Tank 38gal (US)
Engine Oil 3gal (US)
Cooling System 2.6gal (US)

Hydraulic System

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Type Load Sensing Hydraulics with Variable Displacement Piston Pump
Pump Flow at 2,400 rpm 62gal/min
Operating Pressure - Travel 4134psi
Operating Pressure - Swing 3336psi
Operating Pressure - Equipment 4134psi
Digging Force - Stick 11060lb
Digging Force - Bucket 17459lb
Maximum Auxiliary Circuit - Secondary - Pressure at Pump 4134psi
Maximum Auxiliary Circuit - Primary - Pressure at Pump 4134psi
Maximum Auxiliary Circuit - Secondary - Flow at Pump 9gal/min
Note Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Maximum Auxiliary Circuit - Primary - Flow at Pump 35gal/min

Certification - Cab

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

Dimensions - Standard Stick

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Tail Swing without Counterweight 70.9in
Stick Length 98.4in
Boom In Reach 83.3in
Maximum Reach 303in
Dig Depth 205.2in
Ground Clearance - Frame 14in
O/A Track Width 97.2in
Cab Height 100in
Track Belt/Shoe Width 17.7in
Maximum Blade Depth 18.8in
Maximum Dump Clearance 229.5in
Maximum Dig Height 313.8in
Maximum Blade Height 16.6in
Tail Swing - Standard Counterweight 76.1in
O/A Undercarriage Length 126in
Vertical Wall 172.6in
Swing Bearing - Height 28.9in
Maximum Reach - Ground Level 298in
Overall Shipping Length - with Counterweight 274.9in
Note (2) **Boom Height when stick is pinned in working position with attachments.
Note (1) *Boom Height when stick is pinned in transport position (if available) with no attachments.
Overall Shipping Length - without Counterweight 269.7in
Height - Boom Transport - No Tools* 100.4in
Height - Boom Working - With Tools** 106.3in

Air Conditioning System

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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.