Cat | 825K Soil Compactor

Specifications

Overview

Designed with durability built in, the Cat 825K 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.

Engine

Units:

US
Metric

Engine Model	Cat® C15 ACERT™ Cat® C15 ACERT™	More Less
Net Power	405.0 HP 302.0 kW	More Less
Rated Power (Net ISO 9249)	405.0 HP 302.0 kW	More Less
Maximum Net Torque - 1,300 rpm	1478.8 lb/ft 2005.0 N·m	More Less
Maximum Altitude - Without Derating (Tier 4 Final/Stage IV)	9298.0 ft 2834.0 m	More Less
Net Power - Converter Drive - Gross Power	435.0 HP 324.0 kW	More Less
Stroke	6.7 in 171.4 mm	More Less
Net Power - Converter Drive - Torque Rise	8.5% 8.5%	More Less
Gross Power	435.0 HP 324.0 kW	More Less
High Idle Speed	2300.0 r/min 2300.0 r/min	More Less
Rated Power (Net SAE J1349)	405.0 HP 302.0 kW	More Less
Emissions	Meets U.S. EPA Tier 4 Final/EU Stage IV emission standards or meets U.S. EPA Tier 3/EU Stage IIIA equivalent emission standards Meets U.S. EPA Tier 4 Final/EU Stage IV emission standards or meets U.S. EPA Tier 3/EU Stage IIIA equivalent emission standards	More Less
Low Idle Speed	800.0 r/min 800.0 r/min	More Less
Net Power - Direct Drive - Torque Rise	33% 33%	More Less
Maximum Altitude - Without Derating (Tier 3 Final/Stage IIIA Equivalent)	9098.0 ft 2773.0 m	More Less
Net Power - Direct Drive - Gross Power	412.0 HP 307.0 kW	More Less
Bore	5.4 in 137.2 mm	More Less
Displacement	927.6 in³ 15.2 l	More Less

Operating Specifications

Operating Weight	78326.0 lb 35528.0 kg	More Less
Operating Weight - Tier 3 Final/Stage IIIA Equivalent	77340.0 lb 35081.0 kg	More Less
Operating Weight - Tier 4 Final/Stage IV	78326.0 lb 35528.0 kg	More Less

Transmission

Travel Speeds - Reverse - First	3.9 mile/h 6.2 km/h	More Less
Travel Speeds - Forward - First	3.4 mile/h 5.5 km/h	More Less
Travel Speeds - Reverse - Third	12.2 mile/h 19.7 km/h	More Less
Travel Speeds - Reverse - Second	6.9 mile/h 11.1 km/h	More Less
Travel Speeds - Forward - Third	10.7 mile/h 17.2 km/h	More Less
Transmission Type	Planetary – Powershift – ECPC Planetary – Powershift – ECPC	More Less
Travel Speeds - Forward - Second	6.0 mile/h 9.7 km/h	More Less

Cab - Standard

Machine Sound Level (ISO 6395)	113.0 dB(A) 113.0 dB(A)	More Less
Operator Sound Level - ISO 6396	73.0 dB(A) 73.0 dB(A)	More Less

Dimensions (Approximate)

Ground Clearance	1.6 ft 492.0 mm	More Less
Length - With Blade on Ground	28.1 ft 8561.0 mm	More Less
Height - Top of Exhaust Pipe	14.1 ft 4290.0 mm	More Less
Hitch to Centerline of Front Axle	6.1 ft 1850.0 mm	More Less
Turning Radius - Inside of Push Arms	8.6 ft 2627.0 mm	More Less
Centerline of Rear Axle to Edge of Counterweight	9.3 ft 2830.0 mm	More Less
Wheel Base	12.1 ft 3700.0 mm	More Less
Ground Clearance - Bumper	2.7 ft 810.0 mm	More Less
Height - Top of Beacon	14.4 ft 4381.0 mm	More Less
Height - ROPS/Canopy	13.3 ft 4059.0 mm	More Less
Height - Top of Hood	10.4 ft 3162.0 mm	More Less
Width - Over Wheels	11.98 ft 3650.0 mm	More Less

Service Refill Capacities

Hydraulic Tank Only	35.4 gal (US) 134.0 l	More Less
Differential - Final Drives - Rear	29.1 gal (US) 110.0 l	More Less
Fuel Tank	206.6 gal (US) 782.0 l	More Less
Cooling System	30.6 gal (US) 116.0 l	More Less
Differential - Final Drives - Front	26.4 gal (US) 100.0 l	More Less
Transmission	17.4 gal (US) 66.0 l	More Less
Diesel Exhaust Fluid Tank (Tier 4 Final/Stage IV)	8.5 gal (US) 32.0 l	More Less
Engine Crankcase	9.0 gal (US) 34.0 l	More Less

Axles

Oscillation Angle	±8° ±8°	More Less
Rear	Planetary – Oscillating Planetary – Oscillating	More Less
Front	Planetary – Fixed Planetary – Fixed	More Less

Hydraulic System

Maximum Supply Pressure	3495.0 psi 24100.0 kPa	More Less
Main Relief Pressure	3495.0 psi 24100.0 kPa	More Less
Cylinders, Double Acting - Tilt, Bore and Stroke	95.25 mm × 216 mm (3.75 in × 8.5 in) 95.25 mm × 216 mm (3.75 in × 8.5 in)	More Less
Pump Flow at 1,800 rpm	30.9 gal/min 117.0 l/min	More Less
Cylinders, Double Acting - Lift, Bore and Stroke	120 mm × 1070 mm (4.7 in × 42.1 in) 120 mm × 1070 mm (4.7 in × 42.1 in)	More Less

Blades

Total Tilt Adjustment	2.9 ft 890.0 mm	More Less
Maximum Lift Above Ground	3.14 ft 958.0 mm	More Less
Moldboard - Length	14.4 ft 4390.0 mm	More Less
Blade Tilt Angle - Left - Mechanical	4.1° 4.1°	More Less
Width - Over End Bits	15.18 ft 4628.0 mm	More Less
Blade Tilt Angle - Left - Hydraulic	5.4° 5.4°	More Less
Blade Tip Angle - Total	14.8° 14.8°	More Less
Maximum Depth of Cut	1.97 ft 602.0 mm	More Less
Height - Including Cutting Edge	3.4 ft 1032.0 mm	More Less
Blade Tip Angle - Forward	7.3° 7.3°	More Less
Blade Tilt Angle - Right - Mechanical	5.1° 5.1°	More Less
Blade Tip Angle - Back	7.5° 7.5°	More Less
Blade Tilt Angle - Right - Hydraulic	6.3° 6.3°	More Less
Blade Tilt Angle - Left Full	10.1° 10.1°	More Less
Blade Tilt Angle - Right Full	10.8° 10.8°	More Less

Hydraulic System - Steering

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)	More Less
Stroke	22.7 in 576.0 mm	More Less
Steering System - Circuit	Double Acting – End Mounted Double Acting – End Mounted	More Less
Vehicle Articulation Angle	86 degrees 86 degrees	More Less
Bore	4.5 in 114.3 mm	More Less
Steering Pressure Limited	3481.0 psi 24000.0 kPa	More Less
Steering System - Pump	Piston – Variable Displacement Piston – Variable Displacement	More Less

Wheels

Weight	16167.0 lb 7333.0 kg	More Less
Drum Width	3.7 ft 1125.0 mm	More Less
Drum Diameter	4.3 ft 1299.0 mm	More Less
Tips per Wheel	65 65	More Less
Width - Over Drums	11.98 ft 3650.0 mm	More Less
Outside Diameter	5.5 ft 1672.0 mm	More Less

Cab - Suppression

Operator Sound Level - ISO 6396	72.0 dB(A) 72.0 dB(A)	More Less
Machine Sound Level (ISO 6395)	110.0 dB(A) 110.0 dB(A)	More Less

Brakes

Parking Brake

Drum and Shoe, Spring Applied, Hydraulic Released Drum and Shoe, Spring Applied, Hydraulic Released

More Less

Benefits & Features

POWERFUL EFFICIENCY

Auto shift mode, when active, allows machine to upshift or downshift based on machine speed and torque, optimizing performance and saving fuel.
The left pedal acts as a brake, 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 to return to throttle lock without pressing a resume or set button. Helps maneuvering around trucks, tractors or other obstacles.
Steering and Transmission Integrated Control System (STIC™) 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, less stress on operator.

LONG TERM VALUE AND DURABILITY

Designed and made with purpose-built structures to remain safe and durable for the long run.
Long-life-designs, materials and robotic welding ensure multiple life cycles and ability to withstand the toughest conditions.
Full box-section rear frame resists torsional shock and twisting forces.
Heavy-duty steering-cylinder mounts efficiently conduct steering loads into the frame.

PERFORMANCE WITH LESS FUEL

Single Clutch Speed Shifting (SCSS) delivers consistent, smooth shifting and efficiency.
Strategic use of metallurgy and heat treating ensures long-life gears.
Torque converter with lock-up clutch eliminates drive losses, reduces system heat, improves travel speeds, and increases fuel efficiency.
Cat C15 engine is built and tested to meet your most demanding applications.
Two engine options are available to meet Tier 4 Final/Stage IV or Tier 3/Stage IIIA equivalent emission standards. (depending upon market).
Fully integrated electronic engine controls work in concert with the entire machine to make fuel go farther.
Engine Idle Shutdown reduces fuel waste during idling periods.
Delayed Engine Shutdown maximizes durability.

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.

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 mid-back design, thick, contoured cushions, air suspension, six-way adjustments, and a seat-mounted implement pod and 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.

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 or granular soils. Optional 3D mapping system maps compaction measurements to the precise location 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 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 fleet and lower operating costs.

BUILT-IN SAFETY FEATURES

Railings, ladders and non-slip surfaces enhance technician and operator safety.
Design ensures three points of contact at all times through ground level or platform accessible service areas.
Rearview camera with in-cab monitor increases operator awareness around the machine.
Standard cab-mounted LED warning strobes.
Optional heated mirrors ensure enhanced visibility for safe operation.
Optional LED lights provide excellent workspace visibility.
Reduced vibrations to the operator with isolated cab mounts and seat mounted implement and steering controls.
Low interior sound levels.
Pressurized cab with filtered air.

REDUCE ENVIRONMENTAL IMPACT

Engine Idle Shutdown saves fuel by avoiding unnecessary idling.
Reduce waste to the environment with maintenance-free batteries.
The 825K is built to be rebuilt, maximizing machine life, and minimizing environmental impact. Get the most from your investment, with our sustainable options including Cat Reman and Certified Rebuild programs. With these programs, remanufactured components deliver cost savings of 40 to 70 percent, lowering operating costs while also reducing waste and minimizing the need for raw materials.

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 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 check points. 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.

Equipment

825K Standard Equipment

POWER TRAIN

Air to air aftercooler
Autoshift
Brakes, full hydraulic, enclosed, wet multiple disc service brakes
Cat clean emission module (Tier 4 Final/Stage IV)
Electro-hydraulic parking brake
Electronic Clutch Pressure Control (ECPC)
Engine, Cat C15 with ACERT Technology: – Tier 4 Final/Stage IV – Tier 3/Stage IIIA equivalent
Fuel priming pump (electric)
Fuel to air cooler
Ground level engine shutoff
Hydraulically driven demand fan
Integrated braking system
Muffler (under hood) (Tier 3/Stage IIIA equivalent)
Radiator, Aluminum Modular (AMR)
Separated cooling system
Single Clutch Speed Shifting (SCSS)
Starting aid (ether) automatic
Throttle lock
Torque converter with Lock Up Clutch (LUC)
Transmission, planetary, with 3F/3R speed range control

ELECTRICAL

Alarm, back-up
Alternator, 150 amp
Batteries, maintenance-free (4 – 1,000 CCA)
Electrical system, 24V
Ground level lockable master disconnect switch
Light, warning unswitched (LED strobe)
Lighting, access stairway
Lighting, under hood
Lighting system, halogen (front and rear)
Lights, directional (rear)
Starter, electric (heavy duty)
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)
Compaction control (ready)
Coat and hard hat hooks
Electro-hydraulic tilt and lift controls
Finger tip shifting controls
Flip-up armrest
Heater and defroster
Horn, electric
Implement hydraulic lockout
Instrumentation, gauges: – DEF fluid level (Tier 4 Final/Stage IV) – 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
Internal four-post rollover protective structure (ROPS/FOPS)
Laminated glass
Light, (dome) cab
Lunch box and beverage holders
Mirror, internal (panoramic)
Mirrors, heated ready
Mirrors, rearview (externally mounted)
Radio ready for entertainment: – Antenna – Speakers – Converter (12V, 10-15 amp)
Seat, Cat Comfort (cloth) air suspension
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
Wet-arm wipers/washers (front and rear)
Intermittent wipers (front and rear)

TIRES, RIMS AND WHEELS

Wheels, tamping tips

GUARDS

Guard, driveshaft
Guards, crankcase and power train

BLADES

Bulldozer straight blade, hydraulics, and linkage are included in the base machine

FLUIDS

Antifreeze, premixed 50% concentration extended life (–34° C/–29° F)

OTHER STANDARD EQUIPMENT

Cleaner bars with teeth
Doors, service access (locking)
Ecology drains for engine, radiator, transmission, hydraulic tank
Emergency platform egress
Engine, crankcase, 500 hour interval with CJ-4 oil
Engine idle management features: – Auto idle kickdown – Delayed engine shutdown – Engine idle shutdown
Fast fuel system
Fire suppression ready
Fuel tank, Fast Fill, 782 L (207 gal)
Hitch, drawbar with pin
Hoses, Cat
Hydraulic, engine, and transmission oil coolers
Oil change system, high speed
Oil sampling valves
Product Link
Stairway, left and right rear access
Steering, load sensing
Toe kicks
Total hydraulic filtration system
Vandalism protection caplocks
Venturi stack
Fold down exhaust stack for shipping

825K Optional Equipment

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)

STARTING AIDS

Heater, engine coolant, 120V
Heater, engine coolant, 240V

MISCELLANEOUS

Film (ANSI) (Tier 4 Final/Stage IV)
EU certification (Tier 4 Final/Stage IV)
Plate – year of manufacture (Tier 3/Stage III Equivalent)

825K

Specifications

Overview

Engine

Operating Specifications

Transmission

Cab - Standard

Dimensions (Approximate)

Service Refill Capacities

Axles

Hydraulic System

Blades

Hydraulic System - Steering

Wheels

Cab - Suppression

Brakes

Benefits & Features

POWERFUL EFFICIENCY

LONG TERM VALUE AND DURABILITY

PERFORMANCE WITH LESS FUEL

OPTIMIZE COMPACTION

OPERATOR COMFORT AND CONTROL

PRODUCTIVITY WITH TECHNOLOGY

BUILT-IN SAFETY FEATURES

REDUCE ENVIRONMENTAL IMPACT

TOP-TIER SERVICE AND SUPPORT

Equipment

825K Standard Equipment

POWER TRAIN

ELECTRICAL

OPERATOR ENVIRONMENT

TIRES, RIMS AND WHEELS

GUARDS

BLADES

FLUIDS

OTHER STANDARD EQUIPMENT

825K Optional Equipment

OPERATOR ENVIRONMENT

TECHNOLOGY PRODUCTS

FLUIDS

STARTING AIDS

MISCELLANEOUS

Related Products

Attachments