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:
| Engine Model | C15 Cat |
| Net Power (SAE J1349:2011) | — |
| Rated Speed | — |
Benefits & Features
Specifications
Units:
| Engine Model | C15 Cat |
| Emissions | Meets 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 |
| Peak Net Torque (1,300) rpm) | — |
| Torque Rise | 33 |
| Bore | — |
| Stroke | — |
| Displacement | — |
| Low Idle Speed | — |
| Net Power (SAE J1349:2011) | — |
| Rated Speed | — |
| Net Power (ISO 9249:2007) | — |
| Engine Power (ISO 14396:2002) | — |
| Gross Power (SAE J1995:2014) | — |
| Net Power (SAE J1349:2011) | — |
| Engine Power (ISO 14396:2002) | — |
| Gross Power (SAE J1995:2014) | — |
| Operating Weight - Tier 4 Final/Stage IV | — |
| Operating Weight - Tier 3 Final/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 216 mm (3.75 in x 8.5 in) |
| Cooling System | — |
| Engine Crankcase | — |
| Transmission | — |
| Fuel Tank | — |
| Diesel Exhaust Fluid Tank (Tier 4 Final/Stage IV) | — |
| Differential - Final Drives - Front | — |
| Differential - Final Drives - Rear | — |
| Hydraulic Tank Only | — |
| Note | All non-road Tier 4 Final and Stage V diesel engines are required to use: – Ultra Low Sulfur Diesel (ULSD) fuels containing 15 ppm for EPA and 10 ppm for EU (mg/kg) sulfur or less. Biodiesel blends up to B20 are acceptable when blended with 15 ppm for EPA and 10 ppm for EU (mg/kg) sulfur or less ULSD and when the biodiesel feedstock meets ASTM D7467 specifications. – 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. |
| Front | Planetary - Fixed |
| Rear | Planetary - Oscillating |
| Oscillation Angle | 8 |
| Brakes | Multi Disc Wet (Enclosed) 2 WHL |
| Brakes | Drum and Shoe, Spring Applied, Hydraulic Released |
| Operator Sound Level (ISO 6396) | — |
| Machine Sound Level (ISO 6395) | — |
| Note (1) | The operator sound pressure level was measured according to the test procedures and conditions specified in ISO 6396:2008. The measurement was conducted at the maximum engine cooling fan speed. |
| Note (2) | The operator sound pressure level uncertainty is ± 2 dB(A) |
| Note (3) | 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. |
| Note (4) | The machine sound power level was measured according to the test procedures and conditions specified in ISO 6395:2008. The measurement was conducted at the maximum engine cooling fan speed. |
| Operator Sound Level (ISO 6396) | — |
| Machine Sound Level (ISO 6395) | — |
| Note (1) | The operator sound pressure level was measured according to the test procedures and conditions specified in ISO 6396:2008. The measurement was conducted at the maximum engine cooling fan speed. |
| Note (2) | The operator sound pressure level uncertainty is ± 2 dB(A) |
| Note (3) | 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. |
| Note (4) | The machine sound power level was measured according to the test procedures and conditions specified in ISO 6395:2008. The measurement was conducted at the maximum engine cooling fan speed. |
| Steering System - Circuit | Double Acting - End Mounted |
| 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 |
| Operator Sound Level - ISO 6396 | — |
| 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 | — |
| Height - Top of Beacon | — |
| Height - Top of Cab Roof | — |
| Height - Top of Exhaust Pipe | — |
| Height to Top of Hood | — |
| Ground Clearance - Bumper | — |
| Ground Clearance | — |
| Length - With Blade on Ground | — |
| Centerline of Rear Axle to Bumper | — |
| Hitch to Centerline of Front Axle | — |
| Wheel Base | — |
| Width - Over Wheels | — |
| Turning Radius - Inside of Push Arms | — |
| Pilot System | Open center, fixed displacement gear |
| Lift/Tilt System - Circuit | Pilot operated LS valve with EH |
| Lift/Tilt System | Variable displacement piston |
| Note (4) | The machine sound power level was measured according to the test procedures and conditions specified in ISO 6395:2008. The measurement was conducted at the maximum engine cooling fan speed. |
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.
- Cat Comfort Series III Seat includes a mid-back design, thick, contoured cushions, air suspension, six-way adjustments, and a seat-mounted implement pod and Steering and Transmission Integrated Control (STIC™) steer that moves with the seat for optimal control.
- Control panel gives operators the information and controls for safer and time-saving settings.
- STIC control simplicity provides maximum responsiveness and control with STIC that 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 VIMS™ system 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.
- New ground-level service area includes an electrical disconnect, emergency engine shutdown, 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 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 keeping the operator aware of the work area and by 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 825K 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.
- POWER TRAIN
- Advanced Productivity Electronic Control System (APECS)
- Air to air aftercooler
- Brakes, full hydraulic, enclosed, wet multiple disc service brakes
- Cat clean emission module (Tier 4 Final/Stage IV only)
- Electro-hydraulic parking brake
- Electronic Clutch Pressure Control (ECPC)
- Engine, Cat C7.1 (configured for two emissions options): – Tier 4 Final/Stage V – Tier 3/Stage IIIA equivalent
- Engine driven cooling fan – suction
- Fuel priming pump (electric)
- Fuel to air cooler
- Ground level engine shutoff
- Muffler (under hood) (Tier 3/Stage IIIA equivalent only)
- Radiator, unit core
- Starting aid (ether)
- Throttle lock
- Torque converter
- Transmission, planetary, with 3F/3R speed range control
- ELECTRICAL
- Alarm, back-up
- Alternator, 150 amp
- Batteries, maintenance-free
- Electrical system, 24V
- Ground level lockable master disconnect switch
- Lights, directional (rear)
- Light, warning switched (LED strobe)
- Lighting system, (front and rear)
- Starter, electric
- Starting receptacle for emergency start
- OPERATOR ENVIRONMENT
- 12V power port for mobile phone or laptop connection
- AccuGrade™ mapping (ready)
- 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
- Finger tip shifting controls
- Flip-up armrest
- Heater and defroster
- Horn, electric
- Hydraulic controls – seat mounted
- Implement hydraulic lockout
- Instrumentation, gauges: – DEF fluid 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
- Lunch box and beverage holders
- Mirror, internal (panoramic)
- Mirrors, rearview (externally mounted)
- Radio ready for entertainment: – Antenna – Speakers – Converter (12V, 10-15 amp)
- Seat, Cat Premium Plus (leather)
- Seat belt with minder, retractable, 76 mm (3 in) wide
- STIC control system with lockout
- Sun visor, front
- Tinted glass
- 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)
- TIRES, RIMS AND WHEELS
- Wheels, tamping foot
- GUARDS
- Cleaner bars with teeth
- Guards, crankcase and power train
- Guard, driveshaft
- FLUIDS
- Antifreeze, premixed 50% concentration extended life (–34° C/–29° F)
- OTHER STANDARD EQUIPMENT
- DEF tank fill gauge
- 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, 500 L (132.1 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
- STANDARD ATTACHMENTS – HYDRAULICS
- Hydraulics: – Standard or EU and Canada
- STANDARD ATTACHMENTS – OPERATOR ENVIRONMENT
- Glass (window): – rubber-mounted glass
- Precleaner (cab): – powered
- Seat (cab): – heated and ventilated
- Mirrors – cab: – Standard or heated
- STANDARD ATTACHMENTS – POWER TRAIN
- Axles: – Standard or non-spin rear
- STANDARD ATTACHMENTS – SPECIAL ARRANGEMENTS
- Engine Precleaners: – Turbine or dual stage
- STANDARD ATTACHMENTS – ELECTRICAL
- Lights: – Standard or LED
- STANDARD ATTACHMENTS – FUEL SYSTEMS
- Fuel tank: – Non-fast or fast fill
- STANDARD ATTACHMENTS – TECHNOLOGY PRODUCTS
- Product Link: – GSM, satellite
- STANDARD ATTACHMENTS – CLEANER BARS
- Cleaner bars: – Standard or abrasive
- STANDARD ATTACHMENTS – BLADES
- Blades: – Straight or tilt-straight
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
- OTHER ATTACHMENTS
- Sound suppression (required for Brazil)
- FLUIDS
- Antifreeze, –50° C (–58° F)
- STARTING AIDS
- Heater, engine coolant, 120V
- Heater, engine coolant, 240V
- MISCELLANEOUS
- Film (ANSI) (Tier 4 Final/Stage V only)
- EU certification (Tier 4 Final/Stage V only)
- Plate – year of manufacture (Tier 3/Stage IIIA equivalent only)
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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