Soil Compactors 825

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Key Specs

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

825
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Overview

Setting the Bar in Compaction

Designed with durability built in, the Cat 825 ensures maximum availability through multiple life cycles. Designed and manufactured for optimum performance and serviceability, this rugged, powerful machine delivers heavy-duty compaction and dozing.

Benefits

IMPROVED TECHNOLOGY

Boost your productivity with technologies like Cat Compact 3D Mapping and Cat Compaction Control with Machine Drive Power.

DESIGNED FOR SAFETY AND SERVICE

Designed to reduce your service and maintenance costs with longer filter life.

ENHANCED OPERATOR COMFORT

Updated cab with steering transmission integrated control, heated and cooled leather seat, and adjustable settings to help operators work more productively throughout the day.

Features At A Glance

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

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

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

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

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.

Specifications Standard Equipment Optional Equipment

Product Specifications for 825

Engine

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
Engine Power (ISO 14396:2002)	426 hp 318 kW
Engine Model	Cat® C15 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 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	1800 r/min 1800 r/min
Peak Net Torque (1,300) rpm)	1479 lbf·ft 2005 N·m
Torque Rise	33% 33%
Bore	5.4 in 137.2 mm
Stroke	6.7 in 171.4 mm
Displacement	927.6 in³ 15.2 l
High Idle Speed	2300 r/min 2300 r/min
Low Idle Speed	800 r/min 800 r/min
Maximum Altitude - Without Derating (Tier 4 Final/Stage V)	9298 ft 2834 m
Maximum Altitude - Without Derating (Tier 3/Stage IIIA)	9098 ft 2773 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. 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)	78326 lb 35528 kg
Maximum Operating Weight (Tier 3/Stage IIIA equivalent)	77340 lb 35081 kg

Transmission

Transmission Type	Planetary - Powershift - ECPC 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

Hydraulic System

Pump Flow at 1,800 rpm	30.9 gal/min 117 l/min
Main Relief Pressure	3771 psi 26000 kPa
Maximum Supply Pressure	3495 psi 24100 kPa
Cylinders, Double Acting - Lift, Bore and Stroke	120 mm x 1070 mm (4.7 in x 42.1 in) 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) 95.25 mm x 215 mm (3.75 in x 8.5 in)

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 V)	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. 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.

Axles

Front	Planetary - Fixed Planetary - Fixed
Rear	Planetary - Oscillating Planetary - Oscillating
Oscillation Angle	± 8 ° ± 8 °

Braking System

Service Brakes	Multi Disc Wet (Enclosed) 2 WHL Multi Disc Wet (Enclosed) 2 WHL
Parking Brake	Drum and Shoe, Spring Applied, Hydraulic Released 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 contains 2 kg (4.4 lb) of refrigerant which has a CO2 equivalent of 2.86 metric tonnes (3.15 tons). 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 kg (4.4 lb) of refrigerant which has a CO2 equivalent of 2.86 metric tonnes (3.15 tons).

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” * 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 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. 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. 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. 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)	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” * 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 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. 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. 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. 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 Pilot operated, load sensing
Bore	4.5 in 114.3 mm
Stroke	22.7 in 576 mm
Steering System - Pump	Piston - Variable Displacement Piston - Variable Displacement
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 lb/in² 24000 Pa
Vehicle Articulation Angle	86 degrees 86 degrees

Blades

Moldboard - Length	14.4 ft 4390 mm
Height - Including Cutting Edge	3.4 ft 1032 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° 14.8°
Blade Tip Angle - Forward	7.3° 7.3°
Blade Tip Angle - Back	7.5° 7.5°
Blade Tilt Angle - Right - Mechanical	5.1° 5.1°
Blade Tilt Angle - Left - Mechanical	4.1° 4.1°
Blade Tilt Angle - Right - Hydraulic	6.3° 6.3°
Blade Tilt Angle - Left - Hydraulic	5.4° 5.4°
Blade Tilt Angle - Right Full	10.8° 10.8°
Blade Tilt Angle - Left Full	10.1° 10.1°
Total Tilt Adjustment	2.9 ft 890 mm
Width - Over End Bits	15.18 ft 4628 mm

Wheels

Weight	16167 lb 7333 kg
Outside Diameter	5.5 ft 1672 mm
Drum Diameter	4.3 ft 1299 mm
Drum Width	3.7 ft 1125 mm
Tips per Wheel	65 65
Width - Over Drums	11.97 ft 3650 mm

Wheels - High Impact

Weight	16610 lb 7534 kg
Outside Diameter	5.5 ft 1675 mm
Drum Diameter	4.3 ft 1299 mm
Drum Width	3.8 ft 1125 mm
Tips per Wheel	65 65
Width over Drums	11.97 ft 3650 ml

Dimensions (Approximate)

Height - Top of Beacon	14.5 ft 4381 mm
Height - Top of Cab Roof	13.4 ft 4059 mm
Height - Top of Exhaust Pipe	14.1 ft 4290 mm
Height to Top of Hood	10.5 ft 3162 mm
Ground Clearance - Bumper	2.8 ft 810 mm
Ground Clearance	1.7 ft 492 mm
Ground Clearance to Trunnion	1.47 ft 450 mm
Length - With Blade on Ground	28 ft 8561 mm
Centerline of Rear Axle to Bumper	9.3 ft 2830 mm
Hitch to Centerline of Front Axle	6.1 ft 1850 mm
Wheel Base	12.2 ft 3700 mm
Width - Over Wheels	11.12 ft 3650 mm

825 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

825 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

Product Specifications for 825

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Engine

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
Engine Power (ISO 14396:2002)	426 hp 318 kW
Engine Model	Cat® C15 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 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	1800 r/min 1800 r/min
Peak Net Torque (1,300) rpm)	1479 lbf·ft 2005 N·m
Torque Rise	33% 33%
Bore	5.4 in 137.2 mm
Stroke	6.7 in 171.4 mm
Displacement	927.6 in³ 15.2 l
High Idle Speed	2300 r/min 2300 r/min
Low Idle Speed	800 r/min 800 r/min
Maximum Altitude - Without Derating (Tier 4 Final/Stage V)	9298 ft 2834 m
Maximum Altitude - Without Derating (Tier 3/Stage IIIA)	9098 ft 2773 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. 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)	78326 lb 35528 kg
Maximum Operating Weight (Tier 3/Stage IIIA equivalent)	77340 lb 35081 kg

Transmission

Transmission Type	Planetary - Powershift - ECPC 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

Hydraulic System

Pump Flow at 1,800 rpm	30.9 gal/min 117 l/min
Main Relief Pressure	3771 psi 26000 kPa
Maximum Supply Pressure	3495 psi 24100 kPa
Cylinders, Double Acting - Lift, Bore and Stroke	120 mm x 1070 mm (4.7 in x 42.1 in) 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) 95.25 mm x 215 mm (3.75 in x 8.5 in)

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 V)	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. 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.

Axles

Front	Planetary - Fixed Planetary - Fixed
Rear	Planetary - Oscillating Planetary - Oscillating
Oscillation Angle	± 8 ° ± 8 °

Braking System

Service Brakes	Multi Disc Wet (Enclosed) 2 WHL Multi Disc Wet (Enclosed) 2 WHL
Parking Brake	Drum and Shoe, Spring Applied, Hydraulic Released Drum and Shoe, Spring Applied, Hydraulic Released

Air Conditioning System

Air Conditioning

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” * 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 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. 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. 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. 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)	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” * 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 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. 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. 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. 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 Pilot operated, load sensing
Bore	4.5 in 114.3 mm
Stroke	22.7 in 576 mm
Steering System - Pump	Piston - Variable Displacement Piston - Variable Displacement
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 lb/in² 24000 Pa
Vehicle Articulation Angle	86 degrees 86 degrees

Blades

Moldboard - Length	14.4 ft 4390 mm
Height - Including Cutting Edge	3.4 ft 1032 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° 14.8°
Blade Tip Angle - Forward	7.3° 7.3°
Blade Tip Angle - Back	7.5° 7.5°
Blade Tilt Angle - Right - Mechanical	5.1° 5.1°
Blade Tilt Angle - Left - Mechanical	4.1° 4.1°
Blade Tilt Angle - Right - Hydraulic	6.3° 6.3°
Blade Tilt Angle - Left - Hydraulic	5.4° 5.4°
Blade Tilt Angle - Right Full	10.8° 10.8°
Blade Tilt Angle - Left Full	10.1° 10.1°
Total Tilt Adjustment	2.9 ft 890 mm
Width - Over End Bits	15.18 ft 4628 mm

Wheels

Weight	16167 lb 7333 kg
Outside Diameter	5.5 ft 1672 mm
Drum Diameter	4.3 ft 1299 mm
Drum Width	3.7 ft 1125 mm
Tips per Wheel	65 65
Width - Over Drums	11.97 ft 3650 mm

Wheels - High Impact

Weight	16610 lb 7534 kg
Outside Diameter	5.5 ft 1675 mm
Drum Diameter	4.3 ft 1299 mm
Drum Width	3.8 ft 1125 mm
Tips per Wheel	65 65
Width over Drums	11.97 ft 3650 ml

Dimensions (Approximate)

Height - Top of Beacon	14.5 ft 4381 mm
Height - Top of Cab Roof	13.4 ft 4059 mm
Height - Top of Exhaust Pipe	14.1 ft 4290 mm
Height to Top of Hood	10.5 ft 3162 mm
Ground Clearance - Bumper	2.8 ft 810 mm
Ground Clearance	1.7 ft 492 mm
Ground Clearance to Trunnion	1.47 ft 450 mm
Length - With Blade on Ground	28 ft 8561 mm
Centerline of Rear Axle to Bumper	9.3 ft 2830 mm
Hitch to Centerline of Front Axle	6.1 ft 1850 mm
Wheel Base	12.2 ft 3700 mm
Width - Over Wheels	11.12 ft 3650 mm

825 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

825 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

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Cat Compact with Machine Drive Power (MDP) is an energy-based measurement system that correlates compaction with rolling resistance to provide an indication of soil stiffness. An optional mapping system helps operators visualize work as it occurs.

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Cat® Product Link™ wirelessly connects you to your equipment giving you valuable insight into how your machine or fleet is performing. Information such as location, hours, fuel usage, productivity, idle time, and diagnostic codes are made available through online web applications so that you can make timely, fact-based decisions to maximize efficiency, improve productivity, and lower the cost of owning and operating your fleet. Available with satellite or cellular connectivity.

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VisionLink® is a cloud-based software application that takes the guesswork out of fleet management with key insights to maximize performance - regardless of fleet size or equipment manufacturer. Receive equipment data seamlessly to your desktop or mobile device, all from a convenient centralized solution to make informed decisions at every turn.

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See how 825 compares against frequently compared products.

Compactors

Selected

825

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

Compactors

815

Gross Power (SAE J1995:2014): 284 hp; 212 kW
Net Power (SAE J1349:2011): 249 hp; 186 kW
Net Power (ISO 9249:2007): 249 hp; 186 kW

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825 Soil Compactor

825K Introduction

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Soil Compactors 825

Overview

Setting the Bar in Compaction

Benefits

IMPROVED TECHNOLOGY

DESIGNED FOR SAFETY AND SERVICE

ENHANCED OPERATOR COMFORT

Features At A Glance

OPERATOR COMFORT AND CONTROL

TOP-TIER SERVICE AND SUPPORT

POWERFUL EFFICIENCY

PRODUCTIVITY WITH TECHNOLOGY

OPTIMIZE COMPACTION

Product Specifications for 825

Engine

Operating Specifications

Transmission

Hydraulic System

Service Refill Capacities

Axles

Braking System

Air Conditioning System

Sound Performance - Tier 4 Final / Stage V

Sound Performance - Tier 3 / Stage IIIA

Hydraulic System - Steering

Blades

Wheels

Wheels - High Impact

Dimensions (Approximate)

825 Standard Equipment

NOTE

POWERTRAIN

ELECTRICAL

OPERATOR ENVIRONMENT

WHEELS AND CLEANER BARS

GUARDS

FLUIDS

OTHER STANDARD EQUIPMENT

TECHNOLOGY PRODUCTS

825 Optional Equipment

NOTE

OPERATOR ENVIRONMENT

TECHNOLOGY PRODUCTS

FLUIDS

POWERTRAIN

MISCELLANEOUS

SPECIAL ARRANGEMENTS

Product Specifications for 825

Engine

Operating Specifications

Transmission

Hydraulic System

Service Refill Capacities

Axles

Braking System

Air Conditioning System

Sound Performance - Tier 4 Final / Stage V

Sound Performance - Tier 3 / Stage IIIA

Hydraulic System - Steering

Blades

Wheels

Wheels - High Impact

Dimensions (Approximate)

825 Standard Equipment

NOTE

POWERTRAIN

ELECTRICAL

OPERATOR ENVIRONMENT

WHEELS AND CLEANER BARS

GUARDS

FLUIDS

OTHER STANDARD EQUIPMENT

TECHNOLOGY PRODUCTS

825 Optional Equipment

NOTE

OPERATOR ENVIRONMENT

TECHNOLOGY PRODUCTS

FLUIDS

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