Overview
Cat® soil compactors are designed with durability built-in, ensuring maximum availability through multiple life cycles. With optimized performance and simplified serviceability, our machines allow you to operate more efficiently and safely. Representing a long-standing commitment to quality and performance, this rugged, powerful machine is designed and built for heavy-duty compaction and dozing operations. Focused on helping our customers succeed, we have continued to build upon each new series. The 825 continues our legacy of reliability, performance, safety, operator comfort, serviceability, and efficiency.
Specifications
Units:
| Gross Power (SAE J1995:2014) | — |
| Net Power (SAE J1349:2011) | — |
| Net Power (ISO 9249:2007) | — |
Benefits & Features
April 4, 2025
Specifications
Units:
| Gross Power (SAE J1995:2014) | — |
| Net Power (SAE J1349:2011) | — |
| Net Power (ISO 9249:2007) | — |
| Engine Power (ISO 14396:2002) | — |
| Engine Model | Cat® C15 |
| Emissions | U.S. EPA Tier 4 Final / EU Stage V/Korea Stage V and Japan 2014 or Brazil MAR-1, emitting equivalent to U.S. EPA Tier 3/EU Stage IIIA |
| Rated Speed | — |
| Peak Net Torque (1,300) rpm) | — |
| Torque Rise | 33% |
| Bore | — |
| Stroke | — |
| Displacement | — |
| High Idle Speed | — |
| Low Idle Speed | — |
| Maximum Altitude - Without Derating (Tier 4 Final/Stage V) | — |
| Maximum Altitude - Without Derating (Tier 3/Stage IIIA) | — |
| Note | Net power advertised is the power available at the flywheel when the engine is equipped with fan at minimum speed, air intake system, exhaust system, and alternator. |
| Maximum Operating Weight (Tier 4 Final/Stage V) | — |
| Maximum Operating Weight (Tier 3/Stage IIIA equivalent) | — |
| Transmission Type | Planetary - Powershift - ECPC |
| Travel Speeds - Forward - First | — |
| Travel Speeds - Forward - Second | — |
| Travel Speeds - Forward - Third | — |
| Travel Speeds - Reverse - First | — |
| Travel Speeds - Reverse - Second | — |
| Travel Speeds - Reverse - Third | — |
| Pump Flow at 1,800 rpm | — |
| Main Relief Pressure | — |
| Maximum Supply Pressure | — |
| Cylinders, Double Acting - Lift, Bore and Stroke | 120 mm x 1070 mm (4.7 in x 42.1 in) |
| Cylinders, Double Acting - Tilt, Bore and Stroke | 95.25 mm x 215 mm (3.75 in x 8.5 in) |
| Cooling System | — |
| Engine Crankcase | — |
| Transmission | — |
| Fuel Tank | — |
| Diesel Exhaust Fluid Tank (Tier 4 Final/Stage V) | — |
| Differential - Final Drives - Front | — |
| Differential - Final Drives - Rear | — |
| Hydraulic Tank Only | — |
| Note | Cat 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) * • 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details. * Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer). ** Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels. – Cat DEO-ULS™ or oils that meet the Cat ECF-3, API CJ-4, and ACEA E9 specifications are required. – Diesel Exhaust Fluid (DEF) that meets all requirements defined in ISO 22241-1:2006. |
| Front | Planetary - Fixed |
| Rear | Planetary - Oscillating |
| Oscillation Angle | ± 8 ° |
| Service Brakes | Multi Disc Wet (Enclosed) 2 WHL |
| Parking Brake | Drum and Shoe, Spring Applied, Hydraulic Released |
| Air Conditioning | The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf. See the label or instruction manual for identification of the gas. - If equipped with R134a (Global Warming Potential = 1430), the system contains 2.0 kg (4.4 lb) of refrigerant which has a CO2 equivalent of 2.86 metric tonnes (3.15 tons). |
| Operator Sound Pressure Level (ISO 6396:2008) | — |
| Machine Sound Power Level (ISO 6395:2008) | — |
| Operator Sound Pressure Level (ISO 6396:2008)* | — |
| Machine Sound Power Level (ISO 6395:2008)** | — |
| Note (1) | * For machines in European Union countries and in countries that adopt the “EU Directives” and “UK Directives” |
| Note (2) | ** European Union Directive “2000/14/EC” as amended by “2005/88/EC.” and UK Noise Regulation 2001 No. 1701 |
| Note (3) | The machine sound power level was measured according to ISO 6395:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed. |
| Note (4) | The operator sound pressure level was measured according to ISO 6396:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed. |
| Note (5) | Hearing protection may be needed when the machine is operated with a cab that is not properly maintained or when the doors or windows are open for extended periods or in a noisy environment. |
| Operator Sound Pressure Level (ISO 6396:2008) | — |
| Machine Sound Power Level (ISO 6395:2008) | — |
| Operator Sound Pressure Level (ISO 6396:2008)* | — |
| Machine Sound Power Level (ISO 6395:2008)** | — |
| Note (1) | * For machines in European Union countries and in countries that adopt the “EU Directives” and “UK Directives” |
| Note (2) | ** European Union Directive “2000/14/EC” as amended by “2005/88/EC.” and UK Noise Regulation 2001 No. 1701 |
| Note (3) | The machine sound power level was measured according to ISO 6395:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed. |
| Note (4) | The operator sound pressure level was measured according to ISO 6396:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed. |
| Note (5) | Hearing protection may be needed when the machine is operated with a cab that is not properly maintained or when the doors or windows are open for extended periods or in a noisy environment. |
| Steering System - Circuit | Pilot operated, load sensing |
| Bore | — |
| Stroke | — |
| Steering System - Pump | Piston - Variable Displacement |
| Maximum System Flow | 170 L/min @ 1,800 rpm / 44.9 gal/min @ 1,800 rpm |
| Steering Pressure Limited | — |
| Vehicle Articulation Angle | 86 degrees |
| Moldboard - Length | — |
| Height - Including Cutting Edge | — |
| Maximum Depth of Cut | — |
| Maximum Lift Above Ground | — |
| Blade Tip Angle - Total | 14.8° |
| Blade Tip Angle - Forward | 7.3° |
| Blade Tip Angle - Back | 7.5° |
| Blade Tilt Angle - Right - Mechanical | 5.1° |
| Blade Tilt Angle - Left - Mechanical | 4.1° |
| Blade Tilt Angle - Right - Hydraulic | 6.3° |
| Blade Tilt Angle - Left - Hydraulic | 5.4° |
| Blade Tilt Angle - Right Full | 10.8° |
| Blade Tilt Angle - Left Full | 10.1° |
| Total Tilt Adjustment | — |
| Width - Over End Bits | — |
| Weight | — |
| Outside Diameter | — |
| Drum Diameter | — |
| Drum Width | — |
| Tips per Wheel | 65 |
| Width - Over Drums | — |
| Weight | — |
| Outside Diameter | — |
| Drum Diameter | — |
| Drum Width | — |
| Tips per Wheel | 65 |
| Width over Drums | — |
| Height - Top of Beacon | — |
| Height - Top of Cab Roof | — |
| Height - Top of Exhaust Pipe | — |
| Height to Top of Hood | — |
| Ground Clearance - Bumper | — |
| Ground Clearance | — |
| Ground Clearance to Trunnion | — |
| Length - With Blade on Ground | — |
| Centerline of Rear Axle to Bumper | — |
| Hitch to Centerline of Front Axle | — |
| Wheel Base | — |
| Width - Over Wheels | — |
Benefits & Features
OPERATOR COMFORT AND CONTROL
OPERATOR COMFORT AND CONTROL
- Pressurized cab sits on isolation mounts, improving comfort and reducing sound.
- Cab features a convenient floor storage tray/lunch box.
- Premium plus seat containing forced air heating and cooling, 2-way thigh adjustment, power lumbar and back bolster adjustment, ride stiffness adjustment, dynamic end dampening, and leather finish.
- Control panel gives operators the information and controls for safer and time-saving settings.
- Steering and Transmission Integrated
Control (STIC™) simplicity provides maximum responsiveness and control. STIC combines directional selection, gear selection, and steering into a single lever.
TOP-TIER SERVICE AND SUPPORT
TOP-TIER SERVICE AND SUPPORT
- Safe and convenient service via ground-level or platform access to daily service points.
- Swing-out doors on both sides of the engine compartment provide easy access to daily service checks.
- Ecology drains for ease of service and prevention of spills.
- Reduce downtime with Vital Information Management system (VIMS™) notifications so operators and technicians can resolve problems before failure.
- Sight gauges mean quick visual inspection and minimize fluid contamination.
- Swing-out doors on both sides provide convenient access to daily service checkpoints. Engine compartment lighting aids visibility.
- Ground-level service switch area includes an electrical disconnect switch, engine shutdown switch, and stairway light switch.
- Cat dealers keep you running with preventive maintenance programs, maintenance contracts, best-in-class parts availability, and operator training support.
POWERFUL EFFICIENCY
POWERFUL EFFICIENCY
- Auto shift mode, when active, allows the machine to upshift or downshift based on machine speed and torque, optimizing performance and saving fuel.
- The left pedal acts as a brake, a transmission neutralizer, and an engine decelerator to override the engine speed selected by the throttle lock. Operators can slow down when the throttle lock is engaged and return to the throttle lock without pressing a resume or set button. Helps with maneuvering around trucks, tractors, or other obstacles.
- STIC system enhances operator comfort by integrating steering and transmission control functions in a single lever. Includes finger-controlled gear selection.
- Load-sensing hydraulic steering system ensures smooth steering at all speeds and engine levels.
- Variable displacement piston pumps enhance efficiency.
- Steering articulates 43 degrees in each direction, allowing operators precise positioning for easy operation in tight areas.
- Electro hydraulic controls help ensure responsive, predictable implement control.
- Electronically controlled hydraulic cylinder stops deliver smooth machine operation for less stress on the operator.
PRODUCTIVITY WITH TECHNOLOGY
PRODUCTIVITY WITH TECHNOLOGY
- Cat Compaction Control system uses Machine Drive Power (MDP) technology to measure rolling resistance and correlates it with soil stiffness. MDP works in both cohesive and granular soils. Optional 3D mapping system maps compaction measurements to the precise location where the operator is working, providing a real-time view of progress and a record of compaction uniformity.
- Detect technologies help keep people and equipment safe by informing the operator of the work area and monitoring and reporting unsafe conditions, like avoidance zones.
- Compact technologies combine advanced compaction measurement, in-cab guidance, and reporting capabilities to help you consistently meet compaction targets fast, uniformly, and with fewer passes.
- Cat Product Link™ is deeply integrated into your machine, giving you access to information like machine location, hours, fuel usage, idle time, and event codes via the online VisionLink® user interface. Helps effectively manage the fleet and lower operating costs.
OPTIMIZE COMPACTION
OPTIMIZE COMPACTION
- Chevron tamping tip design provides greater ground pressure, more compaction, excellent traction, and a smooth ride.
- Compaction is achieved from the bottom of the lift to the top. The tapered tips, walk out of the lift without “fluffing” the soil. The top of the lift is compacted, and the surface is relatively smooth and sealed so hauling units are able to maintain a high speed when traveling over the fill.
- The 825 travel speed delivers four forces of compaction: pressure, manipulation, impact, and vibration.
- This compactor also spreads fill, potentially reducing the number of spreader tractors needed for the project.
- Symmetrical tamping tip pattern delivers equal compaction in forward or reverse. Tips are full perimeter and replaceable.
- Two cleaner bars on each wheel keep drums free of carryover dirt, in forward and reverse, maximizing efficiency. Cleaner bars are available with standard or abrasive tips, depending upon the application. Bars are adjustable and bar tips are heat-treated and direct-hardened cutting-edge steel to increase life.
Data not available.
Standard Equipment
- NOTE
- Standard and optional equipment may vary. Consult your Cat® dealer for details.
- POWERTRAIN
- Advanced Productivity Electronic Control System (APECS)
- Air-to-air aftercooler
- Brakes, full hydraulic, enclosed, wet multiple disc service brakes
- Cat Clean Emissions Module (U.S. EPA Tier 4 Final/EU Stage V only)
- Electro-hydraulic parking brake
- Electronic Clutch Pressure Control (ECPC)
- Engine, Cat C15 configured for two emissions options: Tier 4 Final/Stage V, or emitting equivalent to Tier 3/Stage IIIA
- Fuel priming pump (electric)
- Fuel-to-air cooler
- Ground-level engine shutdown
- Muffler (under hood) (Tier 3/Stage IIIA equivalent only)
- Radiator, aluminum modular radiator (AMR)
- Starting aid (ether)
- Throttle lock
- Torque converter with lockup clutch (LUC)
- Transmission, planetary, with 3F/3R speed range control
- Axles: – Standard or no-spin rear
- ELECTRICAL
- Alarm, back-up
- Alternator, 150 amp
- Batteries, maintenance-free (4-1,000 CCA)
- Electrical system, 24V
- Ground-level lockable master disconnect switch
- Lights, directional (rear)
- Light, warning switched (LED strobe)
- Lighting system LED, (front and rear)
- Starter, electric (heavy duty)
- Auxiliary start receptacle
- OPERATOR ENVIRONMENT
- 12V power port for mobile phone or laptop connection
- Air conditioner
- Cab, sound-suppressed pressurized
- Cab door, sliding window (LH)
- Cat Compaction Control (ready)
- Cat Detect: Object Detection (ready)
- Coat and hard hat hooks
- Fingertip shifting controls
- Flip-up armrest
- Heater and defroster
- Horn, electric
- Hydraulic controls - seat mounted
- Implement hydraulic lockout
- Instrumentation, gauges: – Diesel exhaust fluid (DEF) level (Tier 4 Final/Stage V only) – Engine coolant temperature – Fuel level – Hydraulic oil temperature – Speedometer/tachometer – Torque converter temperature
- Instrumentation, warning indicators: – Action alert system, three categories – Brake oil pressure – Electrical system, low voltage – Engine failure malfunction alert and action lamp – Parking brake status
- Light, (dome) cab
- Lunchbox and beverage holders
- Mirror, internal (panoramic)
- Mirrors standard or heated, rearview (externally mounted)
- Radio ready for entertainment: – Antenna – Speakers – Converter (12V, 10-15 amp)
- Premium plus seat containing forced air heating and cooling, 2-way thigh adjustment, power lumbar and back bolster adjustment, ride stiffness adjustment, dynamic end dampening, and leather finish
- Seat belt with minder, retractable, 76 mm (3 in) wide
- Steering and Transmission Integrated Control (STIC™) system with lockout
- Transmission gear (indicator)
- Vital Information Management System (VIMS™): – Graphical information display – External data port – Customizable operator profiles – Event indicator light on rear grill
- Wet-arm wipers/washers (front and rear): – Intermittent wipers (front and rear)
- Glass (window) - rubber-mounted glass
- Precleaner, cab powered
- WHEELS AND CLEANER BARS
- Cleaner bars with teeth
- GUARDS
- Guards, crankcase and powertrain
- Guard, driveshaft
- FLUIDS
- Antifreeze, premixed 50% concentration extended life (–34° C/–29° F)
- OTHER STANDARD EQUIPMENT
- Doors, service access (locking)
- Ecology drains for engine, radiator, transmission, hydraulic tank
- Engine, crankcase, 500 hour interval with CJ-4 oil
- Emergency platform egress
- Fire suppression ready
- Fuel tank, fast fill, 782 L (207 gal)
- Hitch, drawbar with pin
- Hoses, Cat XT™
- Hydraulic, engine, and transmission oil coolers
- Oil change system, high speed
- Oil sampling valves
- Steering, load sensing
- Total hydraulic filtration system
- Vandalism protection caplocks
- Venturi stack
- TECHNOLOGY PRODUCTS
- Product Link™: – cellular, satellite
Optional Equipment
- NOTE
- Standard and optional equipment may vary. Consult your Cat® dealer for details.
- OPERATOR ENVIRONMENT
- Camera, rear vision
- Radio, AM/FM/AUX/USB/Bluetooth®
- Radio, CB (ready)
- TECHNOLOGY PRODUCTS
- Compaction control, basic
- FLUIDS
- Antifreeze, –50° C (–58° F)
- POWERTRAIN
- Heater, engine coolant, 120V
- Heater, engine coolant, 240V
- MISCELLANEOUS
- CE/UKCA Certification (standard where regulations require it)
- Plate – year of manufacture
- SPECIAL ARRANGEMENTS
- Engine precleaners: – dual stage
Related Products
Units:
Compact
Cat® Compact technologies combine advanced compaction measurement, in-cab guidance and reporting capabilities to help you consistently meet compaction targets faster, more uniformly, and in fewer passes—saving on fuel and reducing rework and material costs in both soil and asphalt applications.
Equipment Management
Cat® Equipment Management gives you access to the data you need to keep your equipment on the job site and earning money. You can track equipment location and hours, monitor machine use and health, then take informed action that will keep your operation running smoothly, efficiently and profitably.
| Model |
|---|
| Cat Product Link |
| VisionLink® |
Technology Kits
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