Cat Medium Wheel Dozers 824K
Product Feature
Efficiency and Productivity
Efficiency with Autoshift
The Autoshift mode, when active, allows the machine to automatically upshift or downshift based on machine speed, optimizing performance and thus saving fuel. This feature can be easily enabled or disabled on the soft keypad.
Decelerator Pedal
The left pedal acts as a brake, transmission neutralizer and an engine decelerator to override the engine speed selected by the throttle lock. This enables the operator to slow down when the throttle lock is engaged and to return to throttle lock without pressing a resume or set button again. This aids in maneuvering around trucks, tractors or any other obstacle.
Steering and Transmission Integrated Control System (STIC™)
Experience maximum responsiveness and control with STIC that combines directional selection, gear selection and steering into a single lever.
Simple side-to-side motion turns machine right or left, minimizing operator movements
Easy to operate finger controlled gear selection
Smoother, faster cycles help reduce operator fatigue through the use of low effort integrated controls
Steering System
Confident machine operation starts with precise machine control enabled by the 824K's load sensing hydraulic steering system.
Increase efficiency with our variable displacement piston pumps
Achieve precise positioning for easy loading in tight areas with 43 degrees each way of steering articulation
Enhance operator comfort with integrated steering and transmission control functions
Electro Hydraulic Controls
Operators increase productivity with our responsive implements feature.
Operate comfortably through electronically controlled hydraulic cylinder stops
Handle easy-to-use soft detent controls
Structures
Robust Structures
Your bottom line is improved by highly durable structures that achieve multiple life cycles and withstand the toughest loading conditions.
Full box-section rear frame resists torsional shock and twisting forces
Heavy-duty steering cylinder mounts efficiently transmit steering loads into the frame
Axle mounting has been optimized for increased structural integrity
Push Beam and Push Arm Dozer Arrangement
To ensure long life and reliability, solid one piece push beams are through-width, not merely attached to the side of the frame. In corner dozing, stresses are transferred and absorbed through a larger portion of the frame.
Power Train
Cat Planetary Powershift Transmission
Building your success begins with a best-in-class transmission.
Consistent, smooth shifting and efficiency through integrated electronic controls that utilize Single Clutch Speed Shifting (SCSS).
Long life and reliability through heat treat gear and metallurgy.
Four forward and four reverse speeds to match your application.
Cat Torque Converter (TC) with Lock-up Clutch
Eliminates TC losses while lowering system heat
Improves travel speeds
Increases fuel efficiency
Cat C15 ACERT Engine
The Cat C15 ACERT engine is built and tested to meet your most demanding applications. Two engine options are available that meet U.S. EPA Tier 4 Final/EU Stage IV emission standards or U.S. EPA Tier 3/EU Stage IIIA equivalent emission standards.
Fully integrated electronic engine controls works in concert with the entire machine to make your fuel go farther.
Use less fuel idling with Engine Idle Shutdown.
Maximized durability with Delayed Engine Shutdown.
Operator Station
Your operators can work more efficiently and stay comfortable with our customer-inspired cab features.
Entry and Exit
Enter and exit the cab easily and safely with these newly designed, ergonomic features.
Fold up STIC steer/armrest
Reduced access stairway angles
Standard stairway lighting
Cat Comfort Series III Seat
Enhance comfort and help reduce operator fatigue with Cat Comfort Series III seat.
Mid back design and extra thick, contoured cushions
Air suspension system
Easy-to-reach seat levers and controls for six way adjustments
Seat-mounted implement pod and STIC steer that moves with the seat
76 mm (3 in) wide retractable seat belt
Control Panel
Ergonomic placement of switches and information display keep your operators comfortable all day every day.
Large backlit membrane switches feature LED activation indicators
Switches feature ISO symbols for quick function identification
Two position rocker switch activates the electro hydraulic park brake
Environment
Your operator's productivity is enhanced with our clean, comfortable cab environment.
Experience reduced vibrations from isolation cab mounts and seat air suspension.
Maintain desired cab temperature with automatic temperature controls.
Pressurized cab with filtered air
Reduced sound levels
Convenient floor storage tray/lunch box
Integrated Technologies
Cat Connect makes smart use of technology and services to improve your job site efficiency. Using the data from technology-equipped machines, you'll get more information and insight into your equipment and operations than ever before. Cat Connect technologies offer improvements in these key areas: Equipment Management – increase uptime and reduce operating costs. Safety – enhance job site awareness to keep your people and equipment safe.
LINK Technologies
LINK technologies like Product Link™ wirelessly connect you to your equipment, giving you valuable insight into how your machine or fleet is performing. Track location, hours, fuel usage, idle time, and event codes through the online VisionLink® interface so you can make timely, fact-based decisions that can boost job site efficiency and productivity, and lower operating costs. VIMS™ data, like events, histograms, and historical trends, can be downloaded for analysis, giving you the information you need to proactively maintain fleet health and optimize performance and uptime.
DETECT Technologies
DETECT technologies like the rear-vision camera enhance awareness by expanding your view of the environment around working equipment so you can work at peak potential, with confidence.
Serviceability
We can help you succeed by ensuring your 824K has design features to reduce your downtime.
Safe and convenient service with ground level or platform access and grouped service points.
Swing-out doors on both sides of the engine compartment provide easy access to important daily service checks.
Ecology drains for ease of service and prevention of spilling potential environmental contaminants.
Reduce downtime with VIMS system notifications so your operators and technicians can resolve any problems before failure.
Quick visual inspection and minimize fluid contamination with sight gauges.
Swing out fuel, hydraulic oil coolers and condenser for easy access cleanout.
Ground level power service center with electrical disconnect, emergency engine shutdown, and stairway light switch.
Optional tire pressure monitoring system provides real time information to the operator in the cab, ensuring proper inflation and optimizing tire life.
Lighting inside the engine compartment improves visibility to service points.
Customer Support
Legendary Cat Dealer Support
A valued partner, your Cat dealer is available whenever you need them.
Preventive maintenance programs and guaranteed maintenance contracts
Best-in-class parts availability
Improve your efficiency with operator training
Genuine Cat Remanufactured parts
Safety
We are constantly improving our products in an effort to provide a safe work environment for the operator and those who work on your job site.
Machine Access
Left and right hand stairs are angled to enhance safety for operators getting on and off the 824K.
Continuous pass-through with handrails and non-skid surfaces with toe kicks are designed into the service areas.
Maintain three points of contact at all times through ground level or platform accessible service areas.
Visibility
Optional rearview camera with in-cab monitor increases operator awareness around the machine.
Standard cab mounted LED warning strobes
Operator Environment
Reduced vibrations to the operator with isolated cab mounts and seat mounted implement and steering controls.
Low interior sound levels
Pressurized cab with filtered air
Standard 76 mm (3 in) seat belts on the operator seat
Sustainability
Reducing the Impact to the Environment
The 824K is designed and built with sustainability in mind.
Engine Idle Shutdown can help you save fuel by avoiding unnecessary idling.
Reduce waste to the environment with our maintenance free batteries.
Built for multiple lives, the Cat 824 is one of the most rebuilt products to achieve the second and third life to get the most value from your investment. To assist with maximizing machine life, Caterpillar provides a number of sustainable options such as our Reman and Certified Rebuild programs. In these programs, reused or remanufactured components can deliver cost savings of 40 to 70 percent, which lowers operating cost while benefiting the environment.
Caterpillar offers retrofit packages to bring new features to older machines, maximizing your resource. And, when you go through the Cat Certified Rebuild program, these retrofit kits are part of the rebuild process.
Blades
Cat Blades
Cat blades are resilient, durable and designed with excellent dozing and rolling characteristics.
Capacities and widths are set to achieve increased productivity.
Spreading design allows for spreading of cover material, as well as dozing of heavier loads.
Straight Blade
The straight blade (5.0 m3/6.6 yd3) is designed for production dozing in stockpile material and general earthmoving.
Universal Blade
The universal blade (7.7 m3/10.0 yd3) is designed to move large loads over long distances in mining applications.
Semi-Universal Blade
The characteristics of the straight and universal blades are combined into the semi-universal blade (7.7 m3/10.0 yd3). It provides increased capacity with the addition of short wings which include only the dozer end bits without sacrificing spreading characteristics of straight blades.
Coal Blade
The coal blade (16.2 m3/21.1 yd3) is designed for precise and productive dozing while helping to retain load control with increased capacity for lighter materials. Wing angles help retain the load while dozing.
Assemblies
The blades are combined with bulldozer assemblies which consist of the push arms, hydraulic lift, tip and tilt cylinders, trunnion mounting, stabilizer and hydraulic line guards.
Extended Wear Bulldozer Arrangement
The Extended Wear bulldozer arrangement is designed for moving large loads over long distances in harsh conditions. It consists of an 8.1 m3/10.7 yd3 U-blade with Abrasion Resistant Material (ARM) on the front and sides, cutting edges, push arm and integrated cylinder guards, and a heavy-duty stabilizer.
Other Available Options
See your Cat dealer for other blade options.
Operating Costs
Data from customer machines show Cat Wheel Dozers are among the most fuel efficient machines in the industry. Several features contribute to this excellent fuel efficiency:
ACERT Engine – Advanced engine controls maximizes power and efficiency.
Engine Idle Shutdown – Automatic engine and electrical system shutdown conserves fuel.
Lockup Torque Converter – Transfers more power to the ground and optimizes fuel efficiency in all applications.
Single Clutch Speed Shifting (SCSS) – All new SCSS transmission controls provides greater momentum on grades and fuel savings by carrying that momentum through the shift points.
Fuel Tank Capacity minimum of 12 hours operation depending on the application.
Machine configuration, operator technique, and job site layout can impact fuel consumption.
Machine Configuration – Select the correct blade configuration based on your individual application.
Product Parameter
Overview
Cat Wheel Dozers are designed with durability built in, ensuring maximum availability through multiple life cycles. With optimized performance and simplified serviceability, our machines allow you to support your job site efficiently and safely while lowering owning and operating costs. The 824K continues our legacy of reliability, performance, safety, operator comfort, serviceability, and efficiency.
Engine
Units:
Engine Model | Cat® C15 ACERT™ | Cat® C15 ACERT™ |
Net Power - ISO 9249 | 405.0 HP | 302.0 kW |
Bore | 5.4 in | 137.2 mm |
Displacement | 927.6 in³ | 15.2 l |
Emissions | Meets U.S. EPA Tier 4 Final/EU Stage IV emission standards or meets U.S. EPA Tier 3/EU Stage IIIA equivalent emission standards | Meets U.S. EPA Tier 4 Final/EU Stage IV emission standards or meets U.S. EPA Tier 3/EU Stage IIIA equivalent emission standards |
Gross Power | 435.0 HP | 324.0 kW |
High Idle Speed | 2,300 rpm | 2,300 rpm |
Low Idle Speed | 800 rpm | 800 rpm |
Maximum Altitude - Without Derating (Tier 3 Final/Stage IIIA Equivalent) | 9098.0 ft | 2773.0 m |
Maximum Altitude - Without Derating (Tier 4 Final/Stage IV Equivalent) | 9298.0 ft | 2834.0 m |
Maximum Net Torque - 1,300 rpm | 1478.8 ft·lbf | 2005.0 N·m |
Net Power - Converter Drive - Gross Power | 435.0 HP | 324.0 kW |
Net Power - Converter Drive - Torque Rise | 8.50% | 8.50% |
Net Power - Direct Drive - Gross Power | 412.0 HP | 307.0 kW |
Net Power - Direct Drive - Torque Rise | 33% | 33% |
Rated Power (Net ISO 9249) | 405.0 HP | 302.0 kW |
Rated Power (Net SAE J1349) | 405.0 HP | 302.0 kW |
Stroke | 6.7 in | 171.4 mm |
Transmission
Transmission Type | Planetary – Powershift – ECPC | Planetary – Powershift – ECPC |
Travel Speed - Forward 1 | 3.9 mile/h | 6.2 km/h |
Travel Speed - Forward 2 | 6.9 mile/h | 11.1 km/h |
Travel Speed - Forward 3 | 12.2 mile/h | 19.6 km/h |
Travel Speed - Forward 4 | 21.6 mile/h | 34.8 km/h |
Travel Speed - Reverse 1 | 4.4 mile/h | 7.1 km/h |
Travel Speed - Reverse 2 | 7.8 mile/h | 12.6 km/h |
Travel Speed - Reverse 3 | 13.9 mile/h | 22.4 km/h |
Travel Speed - Reverse 4 | 24.7 mile/h | 39.7 km/h |
Brakes
Parking Brake | Drum and Shoe, Spring Applied, Hydraulic Released | Drum and Shoe, Spring Applied, Hydraulic Released |
Axles
Front | Planetary – Fixed | Planetary – Fixed |
Oscillation Angle | ±11° | ±11° |
Rear | Planetary – Oscillating | Planetary – Oscillating |
Service Refill Capacities
Cooling System | 30.6 gal (US) | 116.0 l |
Diesel Exhaust Fluid Tank (Tier 4 Final/Stage IV Equivalent) | 8.5 gal (US) | 32.0 l |
Differential - Final Drives - Front | 26.4 gal (US) | 100.0 l |
Differential - Final Drives - Rear | 29.1 gal (US) | 110.0 l |
Engine Crankcase | 9.0 gal (US) | 34.0 l |
Fuel Tank | 206.6 gal (US) | 782.0 l |
Hydraulic Tank Only | 35.4 gal (US) | 134.0 l |
Transmission | 17.4 gal (US) | 66.0 l |
Operating Specifications
Maximum Operating Weight - Multiple Blade: Straight Blade (Tier 4 Final/Stage IV equivalent) | 74966.0 lb | 34004.0 kg |
Maximum Operating Weight - Multiple Blade: Straight Blade (Tier 3 Final/Stage IIIA equivalent) | 73983.0 lb | 33558.0 kg |
Operating Weight | 74966.0 lb | 34004.0 kg |
Dimensions (Approximate)
Centerline of Front Axle to Hitch | 6.1 ft | 1850.0 mm |
Centerline of Rear Axle to Edge of Bumper | 9.3 ft | 2830.0 mm |
Ground Clearance | 1.4 ft | 441.4 mm |
Ground Clearance - Bumper | 2.8 ft | 852.0 mm |
Height - Top of Beacon | 14.5 ft | 4422.0 mm |
Height - Top of Cab | 13.5 ft | 4100.0 mm |
Height - Top of Exhaust Stack | 14.2 ft | 4332.0 mm |
Height - Top of Hood | 10.5 ft | 3204.0 mm |
Length - With Blade on Ground - Straight Blade | 27.6 ft | 8422.0 mm |
Wheel Base | 12.1 ft | 3700.0 mm |
Width - Over Wheels | 11.0 ft | 3365.0 mm |
Hydraulic System
Cylinder, Double Acting - Tilt and Tip, Bore and Stroke | 140 mm × 230 mm (5.5 in × 9.1 in) | 140 mm × 230 mm (5.5 in × 9.1 in) |
Cylinders, Double Acting - Lift, Bore and Stroke | 120 mm × 1070 mm (4.7 in × 42.1 in) | 120 mm × 1070 mm (4.7 in × 42.1 in) |
Main Relief Pressure | 3495.0 psi | 24100.0 kPa |
Maximum Supply Pressure | 3495.0 psi | 24100.0 kPa |
Pump Flow at 1,800 rpm | 30.9 gal/min | 117.0 l/min |
Hydraulic System - Steering
Bore | 4.5 in | 114.3 mm |
Maximum System Flow | 170 L/min @ 1,800 rpm (44.9 gal/min @ 1,800 rpm) | 170 L/min @ 1,800 rpm (44.9 gal/min @ 1,800 rpm) |
Steering Pressure Limited | 3481.0 psi | 24000.0 kPa |
Steering System - Circuit | Double Acting – End Mounted | Double Acting – End Mounted |
Steering System - Pump | Piston – Variable Displacement | Piston – Variable Displacement |
Stroke | 22.7 in | 576.0 mm |
Vehicle Articulation Angle | 86 degrees | 86 degrees |
Cab - Standard
Machine Sound Level (ISO 6395) | 113.0 dB(A) | 113.0 dB(A) |
Operator Sound Level - ISO 6396 | 73.0 dB(A) | 73.0 dB(A) |
Cab - Suppression
Machine Sound Level (ISO 6395) | 110.0 dB(A) | 110.0 dB(A) |
Operator Sound Level - ISO 6396 | 72.0 dB(A) | 72.0 dB(A) |