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Excavators M315
Request a QuoteKey Information
Engine Power - ISO 14396
90 kW
Operating weight
15,700 kg
Maximum travel speed
37 km/h
Overview
Increase Production with Low Operating Costs
The CAT® M315 hydraulic excavator delivers optimal performance with up to 15% higher digging forces and technology options to enhance productivity. Save time and money with up to 10% savings on maintenance costs, longer maintenance intervals, and daily ground-level maintenance operations. With the M315 model, you can work longer while making significant savings.
Advantages
Improved Comfort
Maneuver with ease thanks to cabin comfort options and improved visibility with a 360° view.
Optimize Performance
Maneuver with ease thanks to cabin comfort options and improved visibility with a 360° view.
Up to 10% Reduction in Maintenance Costs
Reduce maintenance costs with 100% of daily maintenance operations performed at ground level, and the ability to share work tools, increasing availability and reducing costs.
Key Features
- All Latest Features
- High Performance With Reduced Fuel Consumption
- Improve Efficiency and Productivity with Integrated Cat Technologies
- Best Working Comfort
- Cost Maintenance Reduction
- Returning Home, Safe and Sound, Every Day
All Latest Features

Cat Payload helps you obtain precise target loads to improve operational efficiency. Pick up a load of material, with a bucket or grapple or with a grapple and a half-shell bucket, and get a real-time weight estimate without even rotating. The new optional auxiliary relay allows you to power on and off CB radios, beacons, and other equipment without having to release the controls. Remote update and fault tracking now standard. Available features vary by region. For more information on available offers in your region, please contact your local Cat dealer. Version number: 07C
High Performance With Reduced Fuel Consumption

The Cat engine meets your requirements in terms of performance and production. The engine complies with the EPA Tier3 emissions standards in the United States and the EU Stage IIIA. Moving between sites is easier with translation speeds of up to 37km/h (23mph). Whether it's debris or asphalt, the hydraulic excavator meets your requirements to successfully complete your work, on time and efficiently. The advanced hydraulic circuit offers the optimal balance of power and efficiency while giving you the necessary control to meet precise needs. With an improved swing torque of 15%, work can be done faster and more efficiently. The specific swing pump provides constant power for better multitasking. The auxiliary hydraulic options ensure the versatility required to use a wide range of Cat equipment. Don't let temperature be an obstacle to work. The hydraulic excavator offers a high ambient temperature capacity of 52 °C (125 °F) and a cold start capacity of -18 °C (0 °F).
Improve Efficiency and Productivity with Integrated Cat Technologies

Increase productivity compared to traditional leveling with the optional Cat Grade feature, equipped with the 2D system. Optional Cat Payload onboard weighing system: achieve precise target loads and increase loading efficiency with mobile weighing and real-time payload estimates without the need to rotate. Combine Payload and VisionLink® to remotely manage your production goals or access payload data. With the monitor's USB port, you can download the past 30 days' work data to track job progress without needing an internet connection or VisionLink® subscription. Upgrade the system to Cat Grade with Advanced 2D module (optional): easily create and modify leveling plans on a second 254 mm (10 in) high-resolution touchscreen monitor. Upgrade the system to Cat Grade with 3D module (optional): easily create and modify plans and view the full range of front linkage movement on a second high-resolution touchscreen monitor. The optional factory-integrated 2D electronic barrier function prevents the hydraulic excavator from going beyond the points defined by the operator. All Cat Grade systems are compatible with Trimble, Topcon, and Leica radios and base stations. Have you already invested in a leveling infrastructure? You can install Trimble, Topcon, and Leica leveling systems on the machine.
Best Working Comfort

Choose between Comfort and Deluxe cabins. The Deluxe seat is heated and ventilated. Enter and exit the cabin more easily with the foldable left console. Experience more comfort in the cabin during work with a low level of vibrations achieved through advanced viscous mounting brackets. Effortlessly maneuver the hydraulic shovel with easily accessible controls.
Cost Maintenance Reduction

Quickly control and maintain your machine thanks to the daily service points accessible at ground level. Quickly and safely check the engine oil level at ground level. Save up to 10% on maintenance parts with the new, more durable filters. Monitor the filter lifespan and maintenance intervals of your hydraulic excavator through the monitor inside the cabin. Two levels of fuel filtration protect the engine from dirty diesel fuel. The new hydraulic oil filter offers better filtration performance, as well as check valves to keep the oil perfectly clean when the filter is replaced. In addition, its lifespan is extended and its replacement interval is 3,000 hours (50% longer than previous filter designs). S•O•SSM ports are located at ground level, making maintenance easier and allowing for quick and easy sampling of fluids for analysis. Benefit from ample storage space for your equipment inside the cabin under and behind the seat, as well as overhead and in the consoles. A cup holder, bottle holder, and coat hook are also provided. The integrated Bluetooth® radio allows for wireless connection of mobile phones for listening to music and podcasts, as well as hands-free calling. Easily adjust your ideal temperature using the touchscreen monitor or control knob.
Returning Home, Safe and Sound, Every Day

All daily maintenance points are accessible from the ground. Secure your hydraulic excavator with the user ID. Use your PIN code on the monitor to activate the start function via a push button. The standard ROPS (Rollover Protective Structure) cabin complies with ISO 12117-2:2008. Benefit from excellent visibility on the trench, in every orientation, and behind you with smaller pillars, larger windows, and a flat engine hood. Rear vision and side vision cameras are standard equipment. The new maintenance platform allows easy, safe, and quick access to the upper maintenance platform; its steps are covered with a non-slip perforated plate to prevent any risk of slipping. The standard hydraulic safety lever inhibits all hydraulic and translation functions when in the lowered position. The turret lock prevents the movement of the linkage during translation. When activated, the ground-level stop switch interrupts the fuel supply to the engine and stops the machine.

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Product Specifications for M315
- ENGINE
- Engine Power - ISO 1439690 kW
- Engine ModelC3.6 Cat
- Bore98 mm
- Displacement3.6 l
- Stroke120 mm
- Engine EmissionsCompliant with Tier 3 and Stage IIIA emission standards.
- Note (1)Model M315 is compliant with 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 the flywheel when equipped with fan, air cleaner, muffler, and alternator, with engine speed set at 2000 RPM.
- Note (2)No engine derating required up to 3,000 m (9,843 ft) altitude.
- Note (3)Recommended for use up to 3,000 m (9,843 ft) altitude with engine power derating above 3,000 m (9,843 ft).
- Note (4)Rated speed at 2000 RPM.
- HYDRAULIC SYSTEM
- Main Circuit - Max Flow - Equipment270 l/min
- Maximum Pressure: Equipment35000 kPa
- Maximum Pressure: Swing35500 kPa
- Maximum Pressure: Travel35000 kPa
- SWING MECHANISM
- Maximum Swing Torque39 kNm
- Swing Speed9.1 RPM
- MACHINE WEIGHT
- Maximum Operating Weight15700 kg
- Note (1)Operating weight includes full fuel tank, operator, 500 kg (1102 lb) bucket, and tandem 9.00-20 tires. Weight varies based on machine configuration.
- Minimum Operating Weight15100 kg
- MAINTENANCE CAPACITIES
- Cooling System20 l
- Diesel Exhaust Fluid (DEF)20 l
- Final Drive2.4 l
- Fuel Tank295 l
- Hydraulic System - Including Tank220 l
- Hydraulic Tank90 l
- DIMENSIONS
- Boom4650 mm (15' 3")
- BucketGD 0.76 m3 (0.99 yd3)
- Arm2.2 m (7' 3")
- Counterweight Ground Clearance1230 mm
- Ground Clearance305 mm
- Shipping Height: Cab Top10.9 mm
- Shipping Length7770 mm
- Rear Tail Swing Radius2150 mm
- Track Length4920 mm
- Wheelbase2500 mm
- WORKING RANGES AND FORCES
- Boom TypeMono Boom
- Bucket0.76 m3 (0.99 yd3) GD
- ArmR2.2CB (7' 3")
- Digging Height8730 mm
- Dump Height6000 mm
- Ground Level Reach8190 mm
- Vertical Wall Digging Depth4320 mm
- Note (1)Ranges are calculated with a GD (CW) bucket and a CW-20-D.4.N quick coupler with a tip radius of 1387 mm (4' 7"). Range values are for dual tires (9.00-20).
- AIR CONDITIONING SYSTEM
- NoteThe air conditioning system in this machine contains fluorinated greenhouse gas R134a (global warming potential = 1430). The system contains 0.85 kg of refrigerant, with a CO2 equivalent of 1.216 metric tonnes.
- DRIVETRAIN
- Maximum Travel Speed37 km/h
Standard Equipment for M315
-
NOTE
- Standard equipment and options may vary. For more information, please consult your Cat dealer.
-
CABIN
- ROPS, Soundproofing
- Comfort Cabin
- High-Resolution 203mm (8 in) Touchscreen LCD Monitor
-
CAT TECHNOLOGIES
- Product Link
- Remote Updating/Fault Tracking
-
ENGINE
- Power Mode Selector
- Automatic Engine Speed Control, Low Idle with Single Push
- Automatic Engine Idle Shutdown
- High Ambient Cooling Capacity, 52°C (125°F)
- Cold Starting Capability at -18°C (0°F)
- Dual-Element Air Filter with Integrated Precleaner
- Compatible with Biodiesel up to B20
-
HYDRAULIC CIRCUIT
- Boom and Stick Regeneration Circuits
- Auto Hydraulic Warming
- Boom and Stick Holding Valve
-
BOOM AND STICK
- Monobloc Boom 4650mm (15' 3")
-
UNDERCARRIAGE AND STRUCTURES
- Tires, 9.00-20 14 PR, Tandem
- All-Wheel Drive
- Automatic Brake/Axle Lock
- Counterweight 3100kg (6834lb)
-
ELECTRICAL CIRCUIT
- Maintenance-Free Batteries
- Headlights and Blinkers, Front and Rear
- Programmable Delay LED Work Lights
-
MAINTENANCE AND SERVICE
- S·O·S Oil Sampling Ports
- Ground and Platform Level Engine Oil Dipsticks
-
SAFETY AND PROTECTION
- 'Wide Angle' Rearview Mirrors
- Ground-Level Engine Shut-Off Switch
- Non-Slip Plate
- Warning/Signaling Horn
Available Options for M315
-
NOTE
- Standard equipment and options may vary. For more information, please consult your Cat dealer.
-
HYDRAULIC SYSTEM
- Single Lever Joysticks
- Advanced Tool Control (high-pressure single/dual-acting flow with load sense)
- Quick Coupler Circuit
-
BOOM AND ARM
- 2500mm (8' 2") Arm
- 2200mm (7' 3") Arm
-
ELECTRICAL SYSTEM
- Electric Refueling Pump
- LED Chassis Light, Left/Right Boom Lights, Cab Lights
-
CAT TECHNOLOGIES
- Cat Grade2D
- Cat Payload
- 2D Electronic Barrier
- Cat Grade with 3D
- Cat Grade with Advanced 2D Module
-
CAB
- 10" High-Resolution LCD Touchscreen Monitor
- Auxiliary Relays
-
SAFETY AND PROTECTION
- Rear and Side View Cameras
- Rear and Side View Cameras
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