M315
The Cat® M315 Excavator provides top performance with up to 15 percent more swing torque and technology options to boost productivity. Save time and money with up to 10 percent savings in maintenance costs, longer service intervals, and daily ground level maintenance. The M315 gives you the power to work longer while putting money in your pocket.
Engine Power - ISO 14396
121 HP
Engine Model
Cat C3.6
Bore
3.9 in
DOWNLOAD TECHNICAL SPECIFICATIONS
Specification
Value
Engine Power - ISO 14396
121 HP
Engine Model
Cat C3.6
Bore
3.9 in
Displacement
221 in³
Stroke
5 in
Engine Emissions
Meets Tier 3 and Stage IIIA emission standards.
Note (1)
The M315 meets Tier 3 and Stage IIIA emission standards. Net power is tested per ISO 9249:2007. Standards in effect at the time of manufacture. Net power available at flywheel when the engine is equipped with fan, air cleaner, muffler, and alternator with engine speed at 2,000 rpm.
Note (2)
No engine power derating required below 3,000 m (9,843 ft) altitude.
Note (3)
Recommended for use up to 3000 m (9,843 ft) altitude with engine power derate above 3000 m (9,843 ft).
Note (4)
Rated speed at 2,000 rpm.
Specification
Value
Main System - Maximum Flow - Implement
71 gal/min
Maximum Pressure - Equipment
5076 psi
Maximum Pressure - Swing
5149 psi
Maximum Pressure - Travel
5076 psi
Specification
Value
Maximum Swing Torque
28860 ft·lbf
Swing Speed
9.1 r/min
Specification
Value
Operating Weight Maximum
34610 lb
Note (1)
Operating weight includes full fuel tank, operator, 500 kg (1,102 lb) bucket and 9.00-20 dual pneumatic tires. Weight varies depending on configuration.
Operating Weight Minimum
33290 lb
Specification
Value
Cooling System
5.3 gal (US)
Diesel Exhaust Fluid (DEF)
5.3 gal (US)
Final Drive
0.6 gal (US)
Fuel Tank
77.9 gal (US)
Hydraulic System - Including Tank
58.1 gal (US)
Hydraulic Tank
23.8 gal (US)
Specification
Value
Boom
4650 mm (15' 3")
Bucket
GD 0.76 m3 (0.99 yd3)
Stick
2.2m (7' 3")
Counterweight Clearance
4 ft
Ground Clearance
1 ft
Shipping Height - Top of Cab
3285 ft
Shipping Length
25.5 ft
Tail Swing Radius
7.1 ft
Undercarriage Length
16.1 ft
Wheel Base
8.2 ft
Specification
Value
Boom Type
One-Piece Boom
Bucket
0.76m3 (0.99 y3) GD
Stick
R2.2CB (7' 3")
Digging Height
28.6 ft
Dump Height
19.7 ft
Reach at Ground Level
26.9 ft
Vertical Wall Digging Depth
14.1 ft
Note (1)
Range values are calculated with a GD bucket (CW) and CW-20-D.4.N quick coupler with a tip radius of 1387 mm (4' 7"). Range values are with dual pneumatic tires (9.00-20).
Specification
Value
Note
The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 0.85 kg of refrigerant which has a CO2 equivalent of 1.216 metric tonnes.
Specification
Value
Maximum Travel Speed
23 mile/h
  • Cat Payload helps you achieve precise load targets to improve your operating efficiency. Pick up a load of material--with a bucket and thumb combination or grapple and clamshell attachments--and get a real-time weight estimate without swinging.
  • New optional auxiliary relay powers on and turns off CB radios, beacon lights, and other attachments without you taking your hands off the joysticks.
  • Remote Flash and Remote Troubleshoot now standard.
Not all features are available in all regions. Please check with your local Cat dealer for specific offering availability in your area.
Build Number: 07C
  • The Cat engine matches to your performance and production needs. The engine meets U.S. EPA Tier 3 and EU Stage IIIA emission standards.
  • Travel between sites easier with travel speeds up to 37 kph (23 mph).
  • From dirt to asphalt, the excavator matches your needs to get the job done in a timely, efficient manner.
  • The advanced hydraulic system provides the optimum balance of power and efficiency while giving you the control you need for precise working requirements.
  • With up to 15 percent more swing torque, you can get the job done faster to move on to the next one. The dedicated swing pump provides consistent power for better multitasking capabilities.
  • Auxiliary hydraulic options give you the versatility to use a wide range of Cat attachments.
  • Don't let the temperature stop you from working. The excavator has a standard high-ambient temperature capability of 52°C (125°F) and cold start capability of -18°C (0°F).
  • Boost productivity versus traditional grading withoptional Cat Grade with 2D system.
  • Optional Cat Payload on-board weighing system: Achieve precise load targets and increase loading efficiency with on-the-go weighing and real-time estimates of your payload without swinging.
  • Combine Payload with VisionLink® and remotely manage your production targets or take payload data with you. The monitor’s USB port lets you download your results from one shift all the way up to 30 days of work so can manage your progress without needing an internet connection or VisionLink subscription.
  • Upgrade to optional Cat Grade with Advanced 2D: Create and edit grade designs with ease on a second high-resolution 254 mm (10 in) touchscreen monitor.
  • Upgrade to optional Cat Grade with 3D: Create and edit designs with ease and see the front linkage's full range of motion on a second high-resolution touchscreen monitor.
  • Optional 2D E-fence is integrated right out of the factoryto prevent the excavator from moving outside operator defined set points.
  • All Cat Grade systems are compatible with radios and base stations from Trimble, Topcon, and Leica. Already invested in a grade infrastructure? You can install grade systems from Trimble, Topcon, and Leica onto the machine.
  • Choose between Comfort and Deluxe cab options.
  • The Deluxe seat is heated and air adjustable.
  • Get in and out of the cab easier using the tip-up left console.
  • Feel more comfortable in the cab while you work with reduced cab vibrations from advanced viscous mounts.
  • Control the excavator comfortably with easy-to-reach controls.
  • Quickly check and service your machine with daily maintenance points accessible from ground level.
  • Check the engine oil level quickly and safely from the ground.
  • Save up to 10 percent in maintenance parts with the new, longer lasting filters.
  • Track your machine's filter life and maintenance intervals on the in-cab monitor.
  • Two levels of fuel filtration protect the engine from dirty diesel.
  • The new hydraulic oil filter provides improved filtration performance, anti-drain valves to keep oil clean when the filter is replaced, and longer life with a 3,000-hour replacement interval - 50 percent longer than previous filter designs.
  • S•O•SSM ports are located at ground level, simplifying maintenance and allowing for quick, easy extraction of fluid samples for analysis.
  • Stow your gear with plenty of in-cab storage beneath and behind the seat, overhead, and in the consoles. A cup holder, bottle holder, and coat hook are also provided.
  • Bluetooth® integrated radio allows for seamless mobile phone connection to listen to music and podcasts and for hands-free calling.
  • Easily adjust to your ideal temperature with the touchscreen monitor or jog dial.
  • Start the engine with the push-to-start button, a Bluetooth key fob, or the unique Operator ID function.
  • Program your power mode and joystick preferences using Operator ID; the excavator remembers your settings each time you go to work.
  • Navigate quickly on the standard high-resolution 203 mm (8 in) or optional 254 mm (10 in) touchscreen monitor or with the aid of the jog dial control.
  • Not sure how a function works or how to maintain the excavator? Simply access the operator's manual on the touchscreen monitor.
  • The auto axle lock presses the pedal for you to reduce your overall number of actions. The machine automatically detects when the service brake and axle need to be locked or unlocked. It releases automatically when you press the travel pedal.
  • Access daily maintenance points from ground level.
  • Keep your excavator secure with Operator ID. Use your PIN code on the monitor to enable the pushbutton starting feature.
  • The standard ROPS cab meets ISO 12117-2:2008 requirements.
  • Enjoy better visibility into trenches, in each swing direction, and behind you with the help of smaller cab pillars, larger windows, and a flat engine hood design. Rearview and sideview cameras are standard.
  • The service platform design provides easy, safe, and quick access to upper service platform; the service platform steps use anti-skid punch plate to prevent slipping.
  • The standard hydraulic lockout lever isolates all hydraulic and travel functions in the lowered position.
  • Swing lock prevents front linkage from moving as you travel.
  • Ground-level shutoff switch stops all fuel to the engine when activated and shuts down the machine.
General Duty Bucket 600 mm (24 in): 571-2859
General Duty Bucket 900 mm (36 in): 571-2860
General Duty Bucket 1200 mm (48 in): 571-2863
General Duty Bucket 1100 mm (43 in): 571-2862
General Duty Bucket 1000 mm (39 in): 571-2861
General Duty Bucket 900 mm (36 in): 571-2868
General Duty Bucket 600 mm (24 in): 571-2867
General Duty Bucket 450 mm (18 in): 571-2877
General Duty Bucket 900 mm (36 in): 571-2881
General Duty Bucket 1100 mm (43 in): 571-2869
General Duty Bucket 750 mm (30 in): 571-2880
General Duty Bucket 1050 mm (42 in): 571-2907
General Duty Bucket 900 mm (36 in): 571-2906
General Duty Bucket 750 mm (30 in): 571-2905
General Duty Bucket 900 mm (36 in): 571-2857
General Duty Bucket 900 mm (36 in): 571-2858
General Duty Bucket 1100 mm (43 in): 571-2947
General Duty Bucket 1100 mm (43 in): 571-2946
General Duty Bucket 450 mm (18 in): 571-2896
General Duty Bucket 500 mm (20 in): 571-2890
General Duty Bucket 600 mm (24 in): 571-2898
General Duty Bucket 600 mm (24 in): 571-2891
General Duty Bucket 600 mm (24 in): 571-2886
General Duty Bucket 1000 mm (40 in): 571-2892
General Duty Bucket 1100 mm (43 in): 571-2893
General Duty Bucket 1200 mm (48 in): 571-2902
General Duty Bucket 1200 mm (48 in): 571-2894
Heavy Duty Bucket 450 mm (18 in): 571-2919
Heavy Duty Bucket 1200 mm (47 in): 571-2920
Heavy Duty Bucket 1200 mm (48 in): 571-2927
Heavy Duty Bucket 500 mm (20 in): 571-2929
Heavy Duty Bucket 1200 mm (48 in): 571-2926
Heavy Duty Bucket 1200 mm (48 in): 571-2928
Severe Duty Bucket 900 mm (36 in): 571-2921
Ditch Cleaning Bucket 1800 mm (72 in): 439-7341
Ditch Cleaning Bucket 1800 mm (72 in): 439-7332
Utility Duty Bucket 600 mm (24 in): 571-2931
Utility Duty Bucket 1200 mm (48 in): 571-2932
G312 GC Demolition & Sorting Grapple: 587-8713
G314 Demolition & Sorting Grapple: 587-8963
H115 GC S
H115 GC
H110 GC
H110 GC S
H110 S
H115 S
Cat® Detect with Smart Camera
Cat® Detect with Surround Cameras
Cat Product Link
Cat Inspect
VisionLink®
Cat Remote Flash
Cat Remote Troubleshooting
VisionLink® Productivity
Cat 2D E-fence for Excavators
Cat Grade with 2D for Excavators
Cat Payload for Excavators