825 Soil Compactor
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 ...
Engine
- Gross Power (SAE J1995:2014)
- 435hp
- Net Power (SAE J1349:2011)
- 405hp
- Net Power (ISO 9249:2007)
- 405hp
- Engine Power (ISO 14396:2002)
- 426hp
- 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
- 1800r/min
- Peak Net Torque (1,300) rpm)
- 1479lbf·ft
- Torque Rise
- 33%
- Bore
- 5.4in
- Stroke
- 6.7in
- Displacement
- 927.6in³
- High Idle Speed
- 2300r/min
- Low Idle Speed
- 800r/min
- Maximum Altitude - Without Derating (Tier 4 Final/Stage V)
- 9298ft
- Maximum Altitude - Without Derating (Tier 3/Stage IIIA)
- 9098ft
- 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.
Operating Specifications
- Maximum Operating Weight (Tier 4 Final/Stage V)
- 78326lb
- Maximum Operating Weight (Tier 3/Stage IIIA equivalent)
- 77340lb
Transmission
- Transmission Type
- Planetary - Powershift - ECPC
- Travel Speeds - Forward - First
- 3.4mile/h
- Travel Speeds - Forward - Second
- 6.4mile/h
- Travel Speeds - Forward - Third
- 11.1mile/h
- Travel Speeds - Reverse - First
- 4.1mile/h
- Travel Speeds - Reverse - Second
- 7.3mile/h
- Travel Speeds - Reverse - Third
- 12.2mile/h
Hydraulic System
- Pump Flow at 1,800 rpm
- 30.9gal/min
- Main Relief Pressure
- 3771psi
- Maximum Supply Pressure
- 3495psi
- 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)
Service Refill Capacities
- Cooling System
- 30.6gal (US)
- Engine Crankcase
- 9gal (US)
- Transmission
- 17.4gal (US)
- Fuel Tank
- 206.6gal (US)
- Diesel Exhaust Fluid Tank (Tier 4 Final/Stage V)
- 8.5gal (US)
- Differential - Final Drives - Front
- 26.4gal (US)
- Differential - Final Drives - Rear
- 29.1gal (US)
- Hydraulic Tank Only
- 35.4gal (US)
- 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, H
Axles
- Front
- Planetary - Fixed
- Rear
- Planetary - Oscillating
- Oscillation Angle
- ± 8 °
Braking System
- Service Brakes
- Multi Disc Wet (Enclosed) 2 WHL
- Parking Brake
- Drum and Shoe, Spring Applied, Hydraulic Released
Air Conditioning System
- 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 co
Sound Performance - Tier 4 Final / Stage V
- Operator Sound Pressure Level (ISO 6396:2008)
- 73dB(A)
- Machine Sound Power Level (ISO 6395:2008)
- 113dB(A)
- Operator Sound Pressure Level (ISO 6396:2008)*
- 72dB(A)
- Machine Sound Power Level (ISO 6395:2008)**
- 110dB(A)
- 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.
Sound Performance - Tier 3 / Stage IIIA
- Operator Sound Pressure Level (ISO 6396:2008)
- 73dB(A)
- Machine Sound Power Level (ISO 6395:2008)
- 113dB(A)
- Operator Sound Pressure Level (ISO 6396:2008)*
- 72dB(A)
- Machine Sound Power Level (ISO 6395:2008)**
- 110dB(A)
- 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.
Hydraulic System - Steering
- Steering System - Circuit
- Pilot operated, load sensing
- Bore
- 4.5in
- Stroke
- 22.7in
- 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
- 3481lb/in²
- Vehicle Articulation Angle
- 86 degrees
Blades
- Moldboard - Length
- 14.4ft
- Height - Including Cutting Edge
- 3.4ft
- Maximum Depth of Cut
- 1.97ft
- Maximum Lift Above Ground
- 3.14ft
- 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
- 2.9ft
- Width - Over End Bits
- 15.18ft
Wheels
- Weight
- 16167lb
- Outside Diameter
- 5.5ft
- Drum Diameter
- 4.3ft
- Drum Width
- 3.7ft
- Tips per Wheel
- 65
- Width - Over Drums
- 11.97ft
Wheels - High Impact
- Weight
- 16610lb
- Outside Diameter
- 5.5ft
- Drum Diameter
- 4.3ft
- Drum Width
- 3.8ft
- Tips per Wheel
- 65
- Width over Drums
- 11.97ft
Dimensions (Approximate)
- Height - Top of Beacon
- 14.5ft
- Height - Top of Cab Roof
- 13.4ft
- Height - Top of Exhaust Pipe
- 14.1ft
- Height to Top of Hood
- 10.5ft
- Ground Clearance - Bumper
- 2.8ft
- Ground Clearance
- 1.7ft
- Ground Clearance to Trunnion
- 1.47ft
- Length - With Blade on Ground
- 28ft
- Centerline of Rear Axle to Bumper
- 9.3ft
- Hitch to Centerline of Front Axle
- 6.1ft
- Wheel Base
- 12.2ft
- Width - Over Wheels
- 11.12ft
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.