24M
Cat® M Series Motor Graders are well suited for your work. Advanced cab design and revolutionary joystick controls improve operator comfort and productivity. Serviceability features reduce maintenance downtime and help you reduce your owning and operating costs. Cat M Series graders will help you complete your heavy construction, governmental or mining/haul road applications projects on time, and at a lower cost.
24M
Cat® M Series Motor Graders are well suited for your work. Advanced cab design and revolutionary joystick controls improve operator comfort and productivity. Serviceability features reduce maintenance downtime and help you reduce your owning and operating costs. Cat M Series graders will help you complete your heavy construction, governmental or mining/haul road applications projects on time, and at a lower cost.
Specifications
Blade Range
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Circle Centershift - Right210.2 in 5338 mm
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Circle Centershift - Left209.9 in 5332 mm
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Moldboard Sideshift - Right193 in 4902 mm
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Moldboard Sideshift - Left178.3 in 4528 mm
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Maximum Blade Position Angle35°
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Blade Tip Range - Forward40°
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Blade Tip Range - Backward0°
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Maximum Lift Above Ground25 in 634 mm
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Maximum Depth of Cut25.9 in 657 mm
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Maximum Shoulder Reach Outside of Tires - Left126.9 in 3222 mm
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Maximum Shoulder Reach Outside of Tires - Right127.1 in 3228 mm
Engine
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Base Power (1st Gear) - Net533 hp 397 kW
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Engine ModelCat® C18 ACERT™
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Base Power (All Gears) - Net533 hp 397 kW
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Base Power (All Gears) - Net - Metric540 hp 397 kW
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Displacement1104.5 in³ 18.1 l
Engine - Tier 2
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Base Power (All Gears) - Net - Metric540 hp 397 kW
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Standard - Fan Speed - Minimum60 r/min 60 r/min
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Maximum Torque - Net2001 lb/ft 2713 N·m
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Torque Rise - Net30 % 30 %
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Speed at Rated Power1800 r/min 1800 r/min
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Stroke7.2 in 183 mm
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Displacement1104.5 in³ 18.1 l
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Base Power (All Gears) - Net533 hp 397 kW
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Derating Altitude10000 ft 3048 m
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Standard - Fan Speed - Maximum1325 r/min 1325 r/min
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Number of Cylinders6
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Engine ModelCat C18 ACERT
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Standard - Ambient Capability122 °F 50 °C
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Bore5.7 in 145 mm
Engine - U.S. EPA Tier 4 Interim Certified
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Standard - Ambient Capability122 °F 50 °C
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Maximum Torque - Net2001 lb/ft 2713 N·m
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Engine ModelCat® C18 ACERT™
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Base Power (All Gears) - Net533 hp 397 kW
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Speed at Rated Power1800 r/min 1800 r/min
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Bore5.7 in 145 mm
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Number of Cylinders6
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Derating Altitude9655 ft 2943 m
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Standard - Fan Speed - Minimum60 r/min 60 r/min
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Standard - Fan Speed - Maximum1325 r/min 1325 r/min
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Base Power (All Gears) - Net - Metric540 hp 397 kW
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Stroke7.2 in 183 mm
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Displacement1104.5 in³ 18.1 l
Frame
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Drawbar - Width8.9 in 225 mm
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Circle - Diameter103.6 in 2631 mm
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Circle - Blade Beam Thickness6.3 in 160 mm
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Drawbar - Height8.5 in 215 mm
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Height - Front Axle Center33.8 in 858 mm
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Drawbar - Thickness0.6 in 16 mm
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Front-Top/Bottom Plate - Width20.2 in 514 mm
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Front-Top/Bottom Plate - Thickness2 in 50 mm
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Front-Side Plates - Width16.3 in 415 mm
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Front-Side Plates - Thickness1 in 25 mm
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Front Axle - Height to Center32.2 in 817 mm
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Front Axle - Wheel Lean - Left/Right18°
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Front Axle - Total Oscillation per Side32°
Hydraulic System
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Circuit TypeElectro-hydraulic load sensing, closed center
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Pump TypeVariable piston
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Pump Output145 gpm 550 L/min
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Maximum System Pressure3500 psi 24150 kPa
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Standby Pressure450 psi 3100 kPa
Moldboard
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Blade Width24 ft 7.3 m
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Arc Radius21.7 in 550 mm
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Throat Clearance6.4 in 162 mm
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Cutting Edge Width13 in 330 mm
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Cutting Edge Thickness1.1 in 29 mm
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End Bit - Width8 in 203 mm
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End Bit - Thickness1 in 25 mm
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Height40 in 1025 mm
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Down Pressure - Base69583 lb 31563 kg
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Blade Pull - Base86500 lb 39236 kg
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Down Pressure - Maximum75654 lb 34316 kg
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Thickness2 in 50 mm
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Blade Pull - Maximum95940 lb 43518 kg
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Width24 ft 7.3 m
Operating Specifications
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Top Speed - Forward27 mile/h 43.4 km/h
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Top Speed - Reverse25.8 mile/h 41.6 km/h
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Turning Radius - Outside Front Tires40.68 ft 12.4 m
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Steering Range - Left/Right47.5°
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Articulation Angle - Left/Right25°
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Reverse - 1R3.4 mile/h 5.5 km/h
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Forward - 3F6 mile/h 9.7 km/h
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Forward - 1F2.3 mile/h 3.7 km/h
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Forward - 6F27 mile/h 43.4 km/h
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Reverse - 2R9 mile/h 14.5 km/h
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Forward - 2F3.6 mile/h 5.7 km/h
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Forward - 4F9.4 mile/h 15.1 km/h
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Reverse - 3R25.8 mile/h 41.6 km/h
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Forward - 5F17.4 mile/h 28 km/h
Power Train
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Forward/Reverse Gears6 Forward/3 Reverse
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TransmissionAutomatic, electronic power shift
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Brakes - ServiceOil-actuated, oil-disc
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Brakes - Service - Surface Area15733 in² 101508 cm²
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Brakes - ParkingSpring applied, hydraulically released
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Brakes - SecondaryOil-actuated, oil-disc
Ripper
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Ripping Depth - Maximum17.9 in 454 mm
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Ripper Shank Holders7
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Shank Holder Spacing - Minimum23.4 in 593 mm
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Shank Holder Spacing - Maximum23.8 in 604 mm
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Penetration Force29985 lb 13601 kg
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Pry-Out Force41052 lb 18621 kg
Service Refill
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Fuel Capacity350 gal (US) 1326 l
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Cooling System24 gal (US) 90 l
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Hydraulic System - Total70 gal (US) 264 l
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Hydraulic System - Tank36 gal (US) 135 l
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Circle Drive Housing - Each2 gal (US) 7.5 l
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Transmission Oil23 gal (US) 87.1 l
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Differential - Final Drives49 gal (US) 184 l
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Engine Oil16 gal (US) 60 l
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Tandem Housing - Each85 gal (US) 322 l
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Front Wheel Spindle Bearing Housing1 gal (US) 4 l
Standards
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BrakesISO 3450
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ROPS/FOPSISO 3471/ISO 3449
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SoundISO 6394/ISO 6395
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SteeringISO 5010
Tandems
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Height41 in 1040 mm
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Width13.9 in 353 mm
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Sidewall Thickness - Inner1 in 25 mm
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Sidewall Thickness - Outer1.2 in 30 mm
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Drive Chain Pitch3 in 76 mm
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Wheel Axle Spacing90 in 2285 mm
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Tandem Oscillation - Front Up20°
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Tandem Oscillation - Front Down20°
Weights
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Operating Weight - Typically Equipped145151 lb 65840 kg
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Gross Vehicle Weight - Typically Equipped145151 lb 65840 kg
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Gross Vehicle Weight - Maximum - Rear Axle107001 lb 48535 kg
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Gross Vehicle Weight - Base - Front Axle42177 lb 19131 kg
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Gross Vehicle Weight - Base - Rear Axle96110 lb 43595 kg
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Gross Vehicle Weight - Maximum - Total152857 lb 69335 kg
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Gross Vehicle Weight - Base - Total138287 lb 62726 kg
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Gross Vehicle Weight - Typically Equipped - Total145151 lb 65840 kg
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Gross Vehicle Weight - Maximum - Front Axle45856 lb 20800 kg
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Gross Vehicle Weight - Typically Equipped - Rear Axle102051 lb 46290 kg
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Gross Vehicle Weight - Typically Equipped - Front Axle43100 lb 19550 kg
Benefits
Visibility
Good visibility is key to your safety and efficiency. Large windows make it easy to see the moldboard and tires, as well as behind the machine. The front frame, lift arms and rear enclosure are coated with glare reducing paint to help you operate more safely at night. Available front and rear facing cameras further enhance lines of sight all around the machine.
Comfort and Control
Experience the most spacious, comfortable cab in the industry. Revolutionary joystick controls replace levers, so hand and arm movement is reduced by 78%, leaving operators much less fatigued at the end of the day. Rocker switches and control levers are in easy reach. A standard Cat Comfort Series suspension seat and arm/wrist rests are fully adjustable for even more comfort and productivity. Multiple isolation mounts significantly reduce sound and vibration for a more relaxed work environment. The high capacity Heating, Ventilation and Air Conditioning (HVAC) system dehumidifies and pressurizes the cab, circulates fresh air, seals out dust and keeps windows clear. Available Bluetooth technology enables streaming audio from a portable device and hands-free use of a mobile phone while operating machine.
In-Dash Instrument Cluster
Easy-to-read, high-visibility gauges and warning lamps keep you aware of critical system information. Cat Messenger offers real-time machine performance and diagnostic data to help you get the most from your machine.
Operators are more comfortable and productive with two electro-hydraulic joysticks. New and experienced operators around the world report that the controls are easy to learn, and that the electronically adjustable control pods help position them for optimal comfort, visibility and proper operation.
Joystick Functions
The left joystick controls steering, articulation, return-to-center, wheel lean, gear selection, left moldboard lift cylinder and float. The right joystick controls drawbar, circle and moldboard functions as well as electronic throttle control and manual differential lock/unlock. Joystick lean angle mirrors the steer tires' turning angle. A brake tensioning system holds the joystick in position until the operator moves it. The steering control automatically reduces steering sensitivity at higher ground speeds for predictable control. Infinitely variable roller switches control of the rear ripper and/or front lift group (when equipped).
Electronic Throttle Control
Provides easy, precise and consistent throttle operation. An automatic/manual mode switch offers flexibility for different applications and operator preferences.
Articulation Return-to-Center
Automatically returns the machine to a straight frame position from any angle with the touch of a button.
The Cat C18 engine with ACERT Technology gives you the performance you need to maintain consistent grading speeds for maximum productivity. Superior torque and lugging capability provide the power to pull through sudden, short-term increases in loads. ACERT Technology lowers combustion chamber temperatures and optimizes fuel combustion to generate more work output for your fuel cost. ACERT engines also generate fewer emissions to meet the needs of operations around the world. With engine speed limited to 1950 rpm, cylinder velocities are lowered to help you reduce fuel consumption by up to 5%.* The altitude rating is increased, and the rest of the power train has been updated to maintain the same ground speed and power. *Actual fuel savings may vary based on specific site operations and emission level.
Hydraulic Demand Fan
The hydraulic demand fan automatically adjusts the cooling fan speed according to engine cooling requirements. When cooling demand is reduced, you benefit from more power to the ground and improved fuel efficiency.
Compression Brake
The standard three-phase compression brake enables higher travel speeds downhill, while reducing wear on brake components. This improves overall productivity and lowers your maintenance costs.
Ether Starting Aid
A standard ether starting aid feature helps cold-weather startups in extreme temperatures.
We designed the 24M to give you efficiency and longevity in your most demanding applications.
- Full Electronic Clutch Pressure Control (ECPC) system optimizes inching modulation for smooth shifts and directional changes, reducing stress on gears.
- Standard Programmable Autoshift simplifies operation by allowing the operator to program the transmission to shift at optimal points to match your application.
- Lockup Clutch Torque Converter permits the machine to operate in direct drive for more efficient operation at higher engine speeds and in converter mode for more low end torque.
- Six forward and three reverse gears are specifically designed to give you a wide operating range for maximum productivity in all mining applications.
- Balanced Planetary Transmission provides superior load distribution and heat dissipation for longer transmission life.
- Engine Over-Speed Protection prevents downshifting until an acceptable safe travel speed has been established.
- Stall speed protection limits engine speed at high stall ratios to help protect the driveline and machine systems.
Front and Rear Axles
The sealed spindle keeps front axle bearings lubricated and protected from contaminants. The Cat “Live Spindle” design places the larger tapered roller bearing on the outside, where the load is greater, extending bearing life. A bolt-on modular rear axle improves serviceability and contamination control with easy access to differential components.
Hydraulic Brakes
Oil-bathed multi-disc service brakes are hydraulically actuated for smooth, predictable braking and lower operating costs. Brakes are located at each tandem wheel for a large total brake surface area to give you dependable stopping power and longer life.
Caterpillar designs motor grader frame and drawbar components to give you performance and durability in heavy duty applications. The one-piece forged steel circle stands up to high stress loads, and a sacrificial wear system helps keep your service time and costs down. The articulation hitch features a large tapered roller bearing to carry loads evenly and smoothly. It is sealed to prevent contamination and a locking pin prevents articulation for safety during service or transport.
Blade Angle and Moldboard
An aggressive blade angle helps you work more efficiently by allowing material to roll more freely along the blade. The moldboard features heat-treated rails, hardened cutting edges and end bits, and heavy duty bolts to give you greater reliability and long service life. Optimized moldboard curvature and large throat clearance help you move material more efficiently.
Easy Maintenance for More Uptime
A series of shims, strips and wear inserts are easy to add or replace. This keeps drawbar-circle moldboard components factory-tight for higher quality work, and saves you service time and costs. An adjustable rear circle drive reduces service time and loading to help increase system life. Six bolt-on tooth segments on the circle can be individually replaced to reduce cost and downtime for maintenance.
State-of-the-art electro-hydraulics give you advanced machine controls with precise and predictable movements.
Load Sensing Hydraulics (PPPC)
A proven load-sensing system and advanced Proportional Priority Pressure-Compensating (PPPC) electro-hydraulic valves give you superior implement control and enhanced machine performance. Continuously matching hydraulic flow/pressure to power demands creates less heat and reduces power consumption.
- Consistent, Predictable Movement - PPPC valves have different flow rates for the head and rod ends of the cylinder, so you can count on consistent, predictable implement response.
- Balanced Flow - Hydraulic flow is proportioned to give you confidence that all implements will operate simultaneously without slowing the engine or speed of some implements.
Blade Float
Allows the blade to move freely under its own weight. By floating both cylinders, the blade can follow the contours of the haul road. Floating only one cylinder permits the toe of the blade to follow a hard surface while the operator controls the slope with the other lift cylinder. An optional Variable Down Pressure feature allows you to select the amount of down force when the blade is in float. This helps you extend cutting edge life and is effective for removing snow and mud from a road surface.
Independent Oil Supply
Large, separate hydraulic oil supplies prevent cross-contamination and provide proper oil cooling, which reduces heat build-up and extends component life. Cat XT™ hose allows high pressures for maximum power and reduced downtime.
VIMS™
VIMS uses on-board sensors to monitor a wide range of vital machine functions. If an abnormal condition is detected, it will alert the operator and instruct them to take appropriate action. This improves availability, component life and production while reducing repair cost and the risk of a catastrophic failure.
Cat Grade Control Cross Slope
Cross Slope is a standard, fully integrated, factory installed system that helps increase operator productivity and precision to achieve desired cross slope by automating one end of the blade. The system is scalable, supporting all two- and three-dimensional upgrades to be fully compatible with all AccuGrade™ kits.
Cat MineStar™ System
Cat MineStar System is the industry's broadest suite of integrated mine operations and mobile equipment management technologies, configurable to suit your operation's needs.
- Fleet provides real-time machine tracking, assignment and productivity management, giving you a comprehensive overview of all operations from anywhere in the world.
- Terrain enables high-precision management of drilling, dragline, grading and loading operations through the use of guidance technology. It increases machine productivity and provides you real-time feedback for improved efficiency.
- Detect helps increase operator awareness, enhancing safety at your operation. It includes a range of capabilities designed to assist the operator with areas of limited visibility around fixed and mobile equipment.
- Health works to minimize unscheduled downtime and productivity loss, plus helps you keep your operating costs in check by streamlining service and maintenance management.
Cat Product Link*
Remote monitoring with Product Link improves your overall fleet management effectiveness. Events, diagnostic codes and data like hours, fuel, idle time are transmitted to a secure web based application, VisionLink®. VisionLink includes powerful tools to convey information to you and your Cat dealers, including mapping, working and idle time, fuel level and more. *Product Link licensing not available in all areas. Please consult your Cat dealer for availability.
Operator Presence Monitoring System
Keeps the parking brake engaged and hydraulic implements disabled until the operator is initially seated and the machine is ready for operation.
Speed Sensitive Steering
Makes steering less sensitive as ground speed increases for greater operator confidence and control.
Secondary Steering System
Automatically engages a mechanical pump driven by transmission output so the operator can steer the machine to a stop.
Hydraulic Lockout
Disables all implement functions while still providing machine steering control. This safety feature is especially useful while roading.
Brake Systems
Brakes are located at each tandem wheel to eliminate braking loads on the power train. Redundant brake systems utilize accumulators to enable stopping in case of engine failure.
Walkways and Grab Rails
Perforated steel tandem walkways and conveniently located grab rails offer a sturdy platform and support for moving on, off and around the machine. Lighting can be activated from ground level and turned off via in-cab switch.
Object Detection
Optional camera and radar system alerts operator via an in-cab display if any objects are in close proximity when the machine is in reverse. The scalable system allows cameras and a display to be installed initially and radar to be added later for additional functionality.
Front and Rear Cameras
Cameras with in-cab monitors are available to further enhance lines of sight to help increase operator awareness of their surroundings.
Circle Drive Slip Clutch
Protects the drawbar, circle and moldboard from shock loads when the blade encounters an immovable object. This standard feature also reduces the possibility of abrupt directional changes in poor traction conditions.
Blade Lift Accumulators
Help absorb impact loads to the moldboard by allowing vertical blade travel. This standard feature helps reduce unnecessary wear and also help reduce impact loading for enhanced operator safety.
Equipment Info
POWER TRAIN
Air cleaner, dual stage dry type radial seal with service indicator and automatic dust ejector
ELECTRICAL
Alarm, back-up
OPERATOR ENVIRONMENT
Air conditioner and heater
TECHNOLOGY PRODUCTS
Product Link Ready
SAFETY AND SECURITY
Clutch, circle drive slip
TIRES, RIMS, AND WHEELS
25 × 29 multi-piece rims
GROUND ENGAGING TOOLS
Cutting edges, 330 mm × 28 mm (13 in × 11⁄8 in), curved DH-2 steel, 25 mm (1 in), mounting bolts, 19 mm (0.75 in), includes endbits
FLUIDS
Extended Life Coolant to -50° C (-58° F)
OTHER STANDARD EQUIPMENT
Accumulators, blade lift
Product videos
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