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825 Soil Compactor
Engine Model
Cat® C15
Net Power (SAE J1349:2011)
405 hp
302 kW
Rated Speed
1,800 r/min
1,800 r/min
SPECIFICATIONS
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.
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 contains 2.0 kg (4.4 lb) of refrigerant which has a CO2 equivalent of 2.86 metric tonnes (3.15 tons).
Axles
Front
Planetary - Fixed
Rear
Planetary - Oscillating
Oscillation Angle
± 8 °
Blades
Moldboard - Length
14.4 ft
4,390 mm
Height - Including Cutting Edge
3.4 ft
1,032 mm
Maximum Depth of Cut
1.97 ft
602 mm
Maximum Lift Above Ground
3.14 ft
958 mm
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
2.9 ft
890 mm
Width - Over End Bits
15.18 ft
4,628 mm
Braking System
Service Brakes
Multi Disc Wet (Enclosed) 2 WHL
Parking Brake
Drum and Shoe, Spring Applied, Hydraulic Released
Cab - Standard
Operator Sound Level - ISO 6396
73 dB(A)
73 dB(A)
Dimensions (Approximate)
Height - Top of Beacon
14.5 ft
4,381 mm
Height - Top of Cab Roof
13.4 ft
4,059 mm
Height - Top of Exhaust Pipe
14.1 ft
4,290 mm
Height to Top of Hood
10.5 ft
3,162 mm
Ground Clearance - Bumper
2.8 ft
810 mm
Ground Clearance
1.7 ft
492 mm
Length - With Blade on Ground
28 ft
8,561 mm
Centerline of Rear Axle to Bumper
9.3 ft
2,830 mm
Hitch to Centerline of Front Axle
6.1 ft
1,850 mm
Wheel Base
12.2 ft
3,700 mm
Width - Over Wheels
11.12 ft
3,650 mm
Turning Radius - Inside of Push Arms
8.7 ft
2,627 mm
Ground Clearance to Trunnion
1.47 ft
450 mm
Engine
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
Peak Net Torque (1,300) rpm)
1,479 lbf·ft
2,005 N·m
Torque Rise
33%
Bore
5.4 in
137.2 mm
Stroke
6.7 in
171.4 mm
Displacement
927.6 in³
15.2 l
Low Idle Speed
800 r/min
800 r/min
Gross Power - SAE J1995
435 hp
324 kW
Net Power
405 hp
302 kW
High Idle Speed
2,300 r/min
2,300 r/min
Gross Power (SAE J1995:2014)
435 hp
324 kW
Net Power (SAE J1349:2011)
405 hp
302 kW
Net Power (ISO 9249:2007)
405 hp
302 kW
Rated Speed
1,800 r/min
1,800 r/min
Engine Power (ISO 14396:2002)
426 hp
318 kW
Maximum Altitude - Without Derating (Tier 4 Final/Stage V)
9,298 ft
2,834 m
Maximum Altitude - Without Derating (Tier 3/Stage IIIA)
9,098 ft
2,773 m
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.
Engine (U.S. EPA Tier 3/EU Stage IIIA)
Maximum Altitude without Derating
9,098 ft
2,773 mm
Engine - Brazil Mar-1 and China Nonroad Stage III, Equivalent to Tier 3/EU Stage IIIA
Net Power (SAE J1349:2011)
405 hp
302 kW
Engine Power (ISO 14396:2002)
426 hp
318 kW
Gross Power (SAE J1995:2014)
435 hp
324 kW
Engine - Tier 4 Final/EU Stage V
Net Power (SAE J1349:2011)
405 hp
302 kW
Rated Speed
1,800 r/min
1,800 r/min
Net Power (ISO 9249:2007)
405 hp
302 kW
Engine Power (ISO 14396:2002)
426 hp
318 kW
Gross Power (SAE J1995:2014)
435 hp
324 kW
Emissions
U.S. EPA Tier 4 Final/ EU Stage V/Korea Stage Vand Japan 2014 or Brazil MAR-1, emitting equivalent to U.S. EPA Tier 3/EU Stage IIIA
Maximum Altitude without Derating
9,298 ft
2,834 mm
Hydraulic System
Pump Flow at 1,800 rpm
30.9 gpm
117 L/min
Main Relief Pressure
3,771 psi
26,000 kPa
Maximum Supply Pressure
3,495 psi
24,100 kPa
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)
Hydraulic System - Lift/Tilt
Lift/Tilt System - Circuit
Pilot operated LS valve with EH
Pilot System
Open center, fixed displacement gear
Lift/Tilt System
Variable displacement piston
Hydraulic System - Steering
Steering System - Circuit
Pilot operated, load sensing
Bore
4.5 in
114.3 mm
Stroke
22.7 in
576 mm
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
3,481 lb/in²
24,000 Pa
Vehicle Articulation Angle
86 degrees
Operating Specifications
Operating Weight - Tier 4 Final/Stage IV
78,326 lb
35,528 kg
Operating Weight - Tier 3 Final/Stage IIIA Equivalent
77,340 lb
35,081 kg
Maximum Operating Weight (Tier 4 Final/Stage V)
78,326 lb
35,528 kg
Maximum Operating Weight (Tier 3/Stage IIIA equivalent)
77,340 lb
35,081 kg
Parking Brake
Brakes
Drum and Shoe, Spring Applied, Hydraulic Released
Service Brake
Brakes
Multi Disc Wet (Enclosed) 2 WHL
Service Refill Capacities
Cooling System
30.6 gal (US)
116 l
Engine Crankcase
9 gal (US)
34 l
Transmission
17.4 gal (US)
66 l
Fuel Tank
206.6 gal (US)
782 l
Diesel Exhaust Fluid Tank (Tier 4 Final/Stage IV)
8.5 gal (US)
32 l
Differential - Final Drives - Front
26.4 gal (US)
100 l
Differential - Final Drives - Rear
29.1 gal (US)
110 l
Hydraulic Tank Only
35.4 gal (US)
134 l
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.
Diesel Exhaust Fluid Tank*
8.5 gal (US)
321 l
Diesel Exhaust Fluid Tank (Tier 4 Final/Stage V)
8.5 gal (US)
32 l
Sound Performance - Brazil Mar-1 and China Nonroad Stage III, Equivalent to Tier 3/EU Stage IIIA - Standard
Operator Sound Level (ISO 6396)
72 dB(A)
73 dB(A)
Machine Sound Level (ISO 6395)
110 dB(A)
113 dB(A)
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.
Sound Performance - Tier 3 / Stage IIIA
Operator Sound Level (ISO 6396:2008) - Standard
73 dB(A)
73 dB(A)
Machine Sound Level (ISO 6395:2008) - Standard
113 dB(A)
113 dB(A)
Machine Sound Level (ISO 6395:2008) - Suppression
110 dB(A)
110 dB(A)
Note (1)
* For machines in European Union countries and in countries that adopt the “EU Directives” and “UK Directives”
Note (2)
The machine sound power level was measured according to the test ISO 6395:2008. The measurement was conducted at 70% of the maximum engine cooling fan speed.
Note (3)
Hearing protection may be needed when operating with an open operator station and cab (when not properly maintained or doors/windows open) for extended periods or in a noisy environment.
Operator Sound Level (ISO 6396:2008) - Suppression
72 dB(A)
72 dB(A)
Operator Sound Pressure Level (ISO 6396:2008)
73 dB(A)
73 dB(A)
Machine Sound Power Level (ISO 6395:2008)
113 dB(A)
113 dB(A)
Operator Sound Pressure Level (ISO 6396:2008)*
72 dB(A)
72 dB(A)
Machine Sound Power Level (ISO 6395:2008)**
110 dB(A)
110 dB(A)
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 4 Final / Stage V
Operator Sound Pressure Level (ISO 6396:2008)
73 dB(A)
73 dB(A)
Machine Sound Power Level (ISO 6395:2008)
113 dB(A)
113 dB(A)
Operator Sound Pressure Level (ISO 6396:2008)*
72 dB(A)
72 dB(A)
Machine Sound Power Level (ISO 6395:2008)**
110 dB(A)
110 dB(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 4 Final/EU Stage V
Operator Sound Level (ISO 6396:2008) - Standard
73 dB(A)
73 dB(A)
Machine Sound Level (ISO 6395:2008) - Standard
113 dB(A)
113 dB(A)
Operator Sound Level (ISO 6396:2008) - Suppression
72 dB(A)
72 dB(A)
Machine Sound Level (ISO 6395:2008) - Suppression
110 dB(A)
110 dB(A)
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 70% of the maximum engine cooling fan speed.
Note (2)
The machine sound power level was measured according to the test ISO 6395:2008. The measurement was conducted at 70% of the maximum engine cooling fan speed.
Note (3)
Hearing protection may be needed when operating with an open operator station and cab (when not properly maintained or doors/windows open) for extended periods or in a noisy environment.
Sound Performance - Tier 4 Final/EU Stage V - Standard
Operator Sound Level (ISO 6396)
72 dB(A)
73 dB(A)
Machine Sound Level (ISO 6395)
110 dB(A)
113 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 (2)
The operator sound pressure level uncertainty is ± 2 dB(A)
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 (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.
Sound Performance - Tier 4 Final/EU Stage V - Suppression
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.
Transmission
Transmission Type
Planetary - Powershift - ECPC
Travel Speeds - Forward - First
3.4 mile/h
5.5 km/h
Travel Speeds - Forward - Second
6.4 mile/h
10.3 km/h
Travel Speeds - Forward - Third
11.1 mile/h
17.8 km/h
Travel Speeds - Reverse - First
4.1 mile/h
6.6 km/h
Travel Speeds - Reverse - Second
7.3 mile/h
11.8 km/h
Travel Speeds - Reverse - Third
12.2 mile/h
19.7 km/h
Wheels
Weight
16,167 lb
7,333 kg
Outside Diameter
5.5 ft
1,672 mm
Drum Diameter
4.3 ft
1,299 mm
Drum Width
3.7 ft
1,125 mm
Tips per Wheel
65
Width - Over Drums
11.97 ft
3,650 mm
Wheels - High Impact
Weight
16,610 lb
7,534 kg
Drum Diameter
4.3 ft
1,299 mm
Drum Width
3.8 ft
1,125 mm
Tips per Wheel
65
Outside Diameter
5.5 ft
1,675 mm
Width over Drums
11.97 ft
3,650 ml
- 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
- 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
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