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310 Mini Hydraulic Excavator

Net Power

69.5 HP

Operating Weight

22451 lb

Dig Depth

205.2 in


The Cat® 310 Mini Excavator delivers maximum power and performance in a mini size to help you work in a wide range of applications.



  • See the new Cat 7-10 Ton Mini Excavators in action.
  • Learn about the features and benefits of the new Cat 7-10 Ton Mini Excavators.
  • Easy to read monitor lets you adjust machine settings to your operating preference.
  • Easily switch from traditional travel controls with levers and pedals to joystick controls with a push of a button.
  • Hear how Partners Excavating in Virginia uses their Cat 310 Mini Excavator to help their business succeed.
  • Learn about the recommended Daily Maintenance and Inspection for the Cat 7 to 10 Ton Mini Excavators in this quick video.
  • Learn about the Safety Features on the Cat 7 to 10 Ton Mini Excavators in this quick video.

360° View


Model shown represents features on all Cat® Mini Excavators except where indicated.


Model shown represents features on all Cat® Mini Excavators except where indicated.


Virtual Product Tour



  • Engine
    Spec Value
    Net Power 69.5 HP
    Stroke 4.7 in
    Note Net power advertised is the power available at the flywheel when the engine is equipped with air cleaner, exhaust system and fan.
    Bore 3.7 in
    Displacement 203 in³
    Gross Power - SAE J1995:2014 74.3 HP
    Engine Model - U.S. EPA Tier 4 Final/EU Stage V Cat® C3.3B
    Net Power - 2,200 rpm - ISO 9249:2007, 80/1269/EEC 69.5 HP
    Note 1 Advertised power is tested per the specified standard in effect at the time of manufacture.
  • Weights
    Spec Value
    Operating Weight 22451 lb
    Minimum Operating Weight with Cab* 21170 lb
    Maximum Operating Weight with Cab** 22451 lb
    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.
  • Weight Increase from Minimum Configuration
    Spec Value
    Counterweight 552 lb
    Steel Tracks with Pads 728 lb
  • Travel System
    Spec Value
    Maximum Traction Force - Low Speed 19064 lb
    Maximum Traction Force - High Speed 6497 lb
    Travel Speed - High 3.1 mile/h
    Travel Speed - Low 1.6 mile/h
    Ground Pressure - Maximum Weight 6.4 psi
    Ground Pressure - Minimum Weight 6 psi
    Gradeability - Maximum 30 degrees
  • Service Refill Capacities
    Spec Value
    Hydraulic Tank 14 gal (US)
    Cooling System 2.6 gal (US)
    Engine Oil 3 gal (US)
    Fuel Tank 38 gal (US)
    Hydraulic System 37 gal (US)
  • Hydraulic System
    Spec Value
    Operating Pressure - Swing 3336 psi
    Digging Force - Bucket 17459 lb
    Operating Pressure - Travel 4134 psi
    Operating Pressure - Equipment 4134 psi
    Note Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
    Digging Force - Stick 11060 lb
    Type Load Sensing Hydraulics with Variable Displacement Piston Pump
    Pump Flow at 2,400 rpm 62 gal/min
    Maximum Auxiliary Circuit - Secondary - Flow at Pump 9 gal/min
    Maximum Auxiliary Circuit - Primary - Pressure at Pump 4134 psi
    Maximum Auxiliary Circuit - Secondary - Pressure at Pump 4134 psi
    Maximum Auxiliary Circuit - Primary - Flow at Pump 35 gal/min
  • Swing System
    Spec Value
    Machine Swing Speed 10.6 r/min
  • Blade
    Spec Value
    Height 17 in
    Width - Standard 97.2 in
    Width - Wide 103.9 in
  • Certification - Cab
    Spec Value
    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
    Spec Value
    Average Exterior Sound Pressure (ISO 6395:2008) 99 dB(A)
    Operator Sound Pressure (ISO 6396:2008) 72 dB(A)
    Note European Union Directive "2000/14/EC"
  • Dimensions
    Spec Value
    Dig Depth 205.2 in
  • Dimensions - Standard Stick
    Spec Value
    Tail Swing without Counterweight 70.9 in
    Stick Length 98.4 in
    Boom In Reach 83.3 in
    Maximum Reach 303 in
    Dig Depth 205.2 in
    Ground Clearance - Frame 14 in
    O/A Track Width 97.2 in
    Cab Height 100 in
    Track Belt/Shoe Width 17.7 in
    Maximum Blade Depth 18.8 in
    Maximum Dump Clearance 229.5 in
    Maximum Dig Height 313.8 in
    Maximum Blade Height 16.6 in
    Tail Swing - Standard Counterweight 76.1 in
    O/A Undercarriage Length 126 in
    Vertical Wall 172.6 in
    Swing Bearing - Height 28.9 in
    Maximum Reach - Ground Level 298 in
    Overall Shipping Length - with Counterweight 274.9 in
    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 269.7 in
    Height - Boom Transport - No Tools* 100.4 in
    Height - Boom Working - With Tools** 106.3 in
  • Air Conditioning System
    Spec Value
    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.
  • Sustainability
    Spec Value
    Recyclability 96%

Standard Equipment


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


  • 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 ( –37° F)


  • Electronic Variable Displacement Piston Pump
  • Load Sensing/Flow Sharing Hydraulics
  • Power On Demand
  • Hydraulic Temperature Monitoring
  • Certified Accumulator
  • HYDO Advanced Hydraulic Oil


  • TOPS – ISO 12117:1997
  • 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


  • Greased and Lubricated Track
  • Tie Down Eyes on Track Frame
  • Dozer Straight Blade
  • Dozer Float
  • Bolt-on, Reversible Wear Edge


  • One Piece Boom (4300 mm/169.3 in)
  • Front Shovel Capable – Pin-on/Manual Coupler/Hydraulic Coupler for Cat Tools (not available in all regions)
  • Thumb Ready (not available in all regions)


  • 12 Volt Electrical System
  • 90 Ampere Alternator
  • 900 CCA Maintenance Free Battery
  • Battery Disconnect
  • Ignition Key Stop Switch
  • Travel Alarm


  • Locks on External Enclosure Doors
  • Lockable Fuel Cap
  • Beacon Socket
  • Rear Reflectors

Optional Equipment


  • 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


  • 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


  • Long Stick (2500 mm/98.4 in)
  • Attachments including Buckets, Augers and Hammers
  • 2nd Auxiliary Hydraulic Lines
  • Boom Lowering Check Valve
  • Stick Lowering Check Valve
  • Certified Lifting Eye


  • Product Link Elite (regulations apply)
  • Rearview Camera
  • Rotating Beacon


  • Top Guard ISO 10262:1998 (Level II)
  • Front Guard (Mesh) ISO 10262:1998 (Level I)
  • Front Guard (Heavy Duty) ISO 10262:1998 (Level II)


  • Water Jacket Heater
  • Refueling Pump