The Cat PM312 is an efficient, highly maneuverable milling machine with a cutting width of 1225 mm (48.2 in) that performs controlled full-depth removal of asphalt and concrete pavements in a single pass. Integrated Cat GRADE and the latest System K rotors deliver performance, productivity and cutting precision. A comfortable operator environment puts intuitive controls at your fingertips, while long service intervals and easy maintenance access simplifies service. While designed for a single operator, the PM312 includes added features for supporting ground personnel. Many options are available to enhance machine versatility when optimum maneuverability or high production capabilities are required.
Milling Width
1225 mm
Rated Power
256 kW
Operating Weight
21503 kg
Product specifications for PM312 Track Undercarriage (Tier 4/Stage V) Cold Planer
Cutting System
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Milling Width
1225 mm
Maximum Milling Depth
330 mm
Rotor Speeds
97 / 109 / 121 rpm
Number of Bits
106
Power Train
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Rated Power
256 kW
Engine
C9.3B
Maximum Travel Speed
5.5 km/h
Maximum Milling Speed
33 m/min
Weights
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Operating Weight
21503 kg
Transport Weight
21095 kg
Dimensions
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Operating Length – Conveyor Up
11.11 m
Operating Width
2.54 m
Height – Canopy
3.75 m
Maximum Truck Clearance
4.7 m
Minimum Right Cutting Radius
1.92 m
Minimum Left Cutting Radius
4.14 m
Conveyor Swing
60 degrees from center
Transport Length
9.32 m
Transport Width
2.54 m
Transport Height
3 m
Service Refill Capacities
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Cooling System
64 l
Diesel Exhaust Fluid (DEF) Tank
47 l
Water Spray System Tank
1260 l
Fuel Tank
522 l
Hydraulic Tank
55 l
Engine Oil
30 l
Efficient Performance
Cat® C9.3B engine meets U.S. EPA Tier 4 Final, EU Stage V, and Korea Stage V emission standards and offers increased power density with improved electronic, fuel, and air systems
Engine Idle Speed Management and multiple rotor speeds optimize output and demand on the engine
Variable speed cooling fan operates at the lowest possible speed for optimal cooling
Automatic load sensing on the rotor adjusts milling speed to prevent stalls and optimize production
Maneuverability and Control
Robust propel system features dual displacement motors at each leg post, utilizing a cross-drive pattern for additional traction in straight cuts
Automatic traction control helps reduce track slip consistent speed in the most challenging applications
Articulating right rear leg maximizes stability and traction in demanding cuts while enhancing flush cutting capability when needed
Optional ballast weight kit available to increase productivity in specific applications
Track undercarriage offers a balance of traction, speed and maneuverability
Reliable track undercarriage option leverages proven designs from Cat 307 and 308 mini excavators and an automatic tensioning system to ensure consistent performance and longer track life
Ability to electronically switch between rotor speeds during operation
Highly Effective Material Removal
High-capacity conveyors provide efficient removal of milled material with outstanding discharge control
A wide opening and seamless belt effectively clear the rotor chamber
Adjust the belt speed to match material type and production rate
The belt reverses for quick clean out, while magnetic vinyl covers provide quick access to inspect and clean the rollers
Durable Cutting System
The rotor drive system features a heavy-duty dry clutch, dual stage belt drive and automatic belt-tensioning to prevent slippage
Reinforced cutting chamber offers enhanced durability
Hardened full length side plate skis and anti-slab shoes reduce wear and maintenance
High Production System K Rotors
Cat System K rotors feature efficient material flow with an excellent cutting pattern for numerous applications
A tapered dual-retention design secures toolholders in place without a retaining pin, bolt or setscrew, speeding up replacement and eliminating the need for fasteners or torquing
Toolholders, base blocks and kicker paddles are built from high strength alloy steel that’s abrasion resistant for extended life
Optional diamond bits can extend replacement intervals up to 40 times longer than conventional carbide bits
Comfortable Work Environment
Operate in comfort with a standard suspension seat, adjustable right arm console and intuitive, ergonomic controls
A sliding operator station extends up to 215 mm (8.5 in) to provide improved visibility to the cutting edge
Work day or night with backlit keypads and illuminate the work area around the machine with wide-dispersion LED or halogen lighting options
Touchscreen displays provide access to gauge cluster, operating information, remote camera feeds, machine controls and diagnostics
Optional remote cameras enhance visibility to the cutting edges, conveyor, and rear of the machine
Cut closer to obstacles on either side using optional remote cameras with adjustable on-screen guidance lines
An optional hydraulically powered canopy with extendible wing and handrail-mounted windscreen protect the operator from sun, wind, and rain
Better direct exhaust up and away when milling close to buildings or ground personnel with the optional and stowable exhaust diverter
Maximize dust removal from the working areas with the optional dust abatement system
Integrated Cat Technology
Achieve accurate, repeatable and automatic cutting precision with the integrated Cat Grade and Slope system
The optional grade control display can be positioned in the operator station or on the back of the machine to enable interaction with the grade system from the ground level
Obtain full control of grade and slope from any machine display
Easily adjust grade control values and sensors through the highly intuitive touchscreen interface
Adjust the speed at which the rotor drops into the cut for optimal machine control
Set and automate transitions into/out of cuts and save settings for future jobs
Clear obstacles in the cutting path with ease using the obstacle jump feature
Enhance for full 3D milling operation (additional hardware required)
Simplfied Service, Low Maintenance Costs
Maintenance is easier with large service doors for access to critical components
Maintenance-free track components and easy to replace track pads lower service costs
Standard ground-level controls and an optional hydraulically operated rotor turning device simplify bit removal and replacement
The accessory drive system allows use of select machine fuctions when the engine is turned off
Electrical system wiring is color-coded and numbered for easy identification and wrapped in a protective, abrasion-resistant nylon braid for longer life
Monitor fluid conditions with regular sampling to help extend change intervals up to 500 hours engine oil, 6000 hours hydraulic oil and 12000 hours coolant
Electronic Control Modules (ECMs) monitor machine systems to alert the operator of performance issues
VisionLink® takes the guesswork out of managing your entire fleet–regardless of size or equipment manufacturer*–by providing maintenance needs, machine hours, location, fuel usage, idle time, diagnostic codes, and more through interactive dashboards on your mobile device or desktop, helping you make informed decisions that lower costs, simplify maintenance, and improve safety and security on your jobsite
Remote Flash allows you to update onboard software without a technician being present, allowing you to initiate software updates when convenient, increasing your overall operating efficiency**
Remote Troubleshoot allows your Cat dealer to perform diagnostic testing on your connected machine remotely**
Convenient parts availability, dealer locations and service repair kits simplify ordering of high wear components
* Data field availability can vary by equipment manufacturer and is provided through an application programming interface (API).
** Must be within cell range coverage.
Sustainability
The Cat C9.3B engine meets U.S. EPA Tier 4 Final, EU Stage V and Korea Stage V emission standards
Cat U.S. EPA Tier 4 Final, EU Stage V, and Korea Stage V Final diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels* up to: 20% biodiesel FAME (fatty acid methyl ester) or 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details.
Engine Idle Speed Management helps maximize fuel efficiency and reduce greenhouse gas emissions by elevating engine speed to an intermediate idle to complete specific tasks and returning to low idle when finished.
Automatic Load Control helps you save fuel and reduces greenhouse gas emissions by automatically matching milling speed to engine load for maximum production at peak efficiency.
Standby/Resume pauses major machine functions and lowers engine speed to conserve fuel and helps reduce greenhouse gas emissions during truck exchanges.
Traction Control maintains consistent traction to increase machine efficiency, helps reduce fuel burn and greenhouse gas emissions.
Cat Scheduled Oil Sampling (S•O•SSM) Services helps reveal excessive wear, contaminated fluids or other “unseen” issues that can shorten component life. In many cases, you can extend oil and coolant change intervals by using fluid monitoring. Consult your Cat dealer or the machine’s operation and maintenance manual for more information.
Cat Grade with Grade and Slope for cold planers allows for accurate material planning to help reduce overages during the paving process and increase final project quality for a longer lasting road surface.
Don’t waste fuel idling. Cat VisionLink online fleet monitoring helps you manage idle time and reduce fuel burn and greenhouse gas emissions.
VisionLink displays the CO2 emissions for monitored assets, calculated by fuel type for the Runtime Fuel Burned each day in a selected date range.
* Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels.
PM312 Track Undercarriage (Tier 4/Stage V) Standard Equipment
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OPERATOR ENVIRONMENT
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Sliding operator station
Suspension seat
Ergonomically adjustable arm rest
Ground control keypad
High-resolution LCD touchscreen display
12-volt power receptacle
CAT CONNECT TECHNOLOGY
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Remote Flash
Remote Troubleshoot
Cat Grade with Grade and Slope
VisionLink® telematics
ROTOR SYSTEM
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Automatic plunge-cut
Automatic grade and slope transition feature
Obstacle jump
Three cutting speeds
POWERTRAIN
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Engine Idle Speed Management
High capacity cooling system
Automatic Load Control
HYDRAULIC SYSTEM
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Traction control
SERVICE AND MAINTENANCE
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Ports for Scheduled Oil Sampling (S·O·S℠)
Platform-level engine oil dipsticks
1260 L (332.9 gal) onboard water tank
Side water fill valve
Water spray system
SAFETY AND SECURITY
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Platform handrails
Signaling/warning horn
PM312 Track Undercarriage (Tier 4/Stage V) Optional Equipment
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OPERATOR ENVIRONMENT
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Additional high-resolution LCD touchscreen display
Powered canopy
Windscreen
Exhaust diverter
CAT CONNECT TECHNOLOGY
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Sonic grade control sensors
High-resolution LCD touchscreen display (for ground level grade controls)
CONVEYOR
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Dust abatement system
Hydraulic folding conveyor
ROTOR SYSTEM
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Rotor turning device (with pendant control)
System K Rotor – Coarse (18 mm)
System K Rotor – Standard (15 mm)
System K Rotor – Fine (8 mm)
Diamond bits
Pneumatic bit removal tool
Tool holder extractor
510 kg (1124 lb) ballast kit
POWERTRAIN
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CE certificate
HYDRAULIC SYSTEM
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Cat Bio HYDO™ Advanced biodegradable hydraulic oil
High ambient hydraulic oil
SERVICE AND MAINTENANCE
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Air compressor
Accessory drive system
High pressure washdown
Low pressure washdown
Additional water spray system (dust control)
SAFETY AND SECURITY
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Halogen work lighting
Wide dispersion LED work lighting
Warning beacon (fixed)
LED roading lights
Truck signal lights
Remote cameras (rear back up, front conveyor, left and/or right cutting edges, magnetic mount)
