Compactors:

825K Soil Compactor

Engine Model
Cat® C15 ACERT™
Net Power
405 hp
Operating Weight
78326 lb
Operator Sound Level - ISO 6396
73 dB(A)

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 825K continues our legacy of reliability, performance, safety, operator comfort, serviceability, and efficiency.



Product Specs

  • Engine

  • Engine Model
    Cat® C15 ACERT™
    Net Power
    405hp
    Bore
    5.4in
    Displacement
    927.6in³
    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
    Gross Power
    435HP
    High Idle Speed
    2300r/min
    Low Idle Speed
    800r/min
    Maximum Altitude - Without Derating (Tier 4 Final/Stage IV)
    9298ft
    Maximum Net Torque - 1,300 rpm
    1478.8lb/ft
    Net Power - Converter Drive - Gross Power
    435HP
    Net Power - Direct Drive - Gross Power
    412HP
    Rated Power (Net ISO 9249)
    405HP
    Rated Power (Net SAE J1349)
    405HP
    Stroke
    6.7in
    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
    Rated Power (Net SAE J1349)
    405hp
    Rated Power (Net ISO 9249)
    405hp
    Gross Power
    435hp
    Net Power: Direct Drive – Gross Power
    412hp
    Net Power - Direct Drive - Torque Rise
    33%
    Net Power: Converter Drive – Gross Power
    435hp
    Net Power - Converter Drive - Torque Rise
    8,5%
    Maximum Net Torque @ 1,300 rpm
    1478.8lbf-ft
    Maximum Altitude without Derating (Tier 4 Final/Stage IV)
    9298ft
    Maximum Altitude - Without Derating (Tier 3 Final/Stage IIIA Equivalent)
    9098ft
    Bore
    5.4in
    Stroke
    6.7in
    Displacement
    927.6in3
    High Idle Speed
    2300rpm
    Low Idle Speed
    800rpm
    Engine Model
    C15 Cat®
    Net Power
    405HP
  • Operating Specifications

  • Operating Weight
    78326lb
    Operating Weight - Tier 4 Final/Stage IV
    78326lb
    Operating Weight - Tier 3 Final/Stage IIIA Equivalent
    77340lb
    Operating Weight
    78326lb
  • Cab - Standard

  • Operator Sound Level - ISO 6396
    73dB(A)
    Machine Sound Level (ISO 6395)
    113dB(A)
  • Cab - Suppression

  • Machine Sound Level (ISO 6395)
    110dB(A)
    Operator Sound Level - ISO 6396
    72dB(A)
  • Dimensions (Approximate)

  • Centerline of Rear Axle to Edge of Counterweight
    9.3ft
    Ground Clearance
    1.6ft
    Ground Clearance - Bumper
    2.7ft
    Height - ROPS/Canopy
    13.3ft
    Height - Top of Beacon
    14.4ft
    Height - Top of Exhaust Pipe
    14.1ft
    Height - Top of Hood
    10.4ft
    Hitch to Centerline of Front Axle
    6.1ft
    Length - With Blade on Ground
    28.1ft
    Wheel Base
    12.1ft
    Width - Over Wheels
    11.98ft
    Height to Top of Beacon
    14.4ft
    Height to Top of Exhaust Pipe
    14.1ft
    Height to Top of Hood
    10.4ft
    Ground Clearance to Bumper
    2.7ft
    Center Line of Rear Axle to Edge of Counterweight
    9.3ft
    Hitch to Center Line of Front Axle
    6.1ft
    Wheelbase
    12.1ft
    Length with Blade on Ground
    28.1ft
    Ground Clearance
    1.6ft
    Width over Wheels
    11.98ft
    Height to ROPS/Canopy
    13.3ft
    Turning Radius - Inside of Push Arms
    8.6ft
  • Hydraulic System

  • Cylinders, Double Acting - Lift, Bore and Stroke
    120 mm × 1070 mm (4.7 in × 42.1 in)
    Cylinders, Double Acting - Tilt, Bore and Stroke
    95.25 mm × 216 mm (3.75 in × 8.5 in)
    Main Relief Pressure
    3495psi
    Maximum Supply Pressure
    3495psi
    Pump Flow at 1,800 rpm
    30.9gal/min
    Main Relief Pressure
    3495psi
    Maximum Supply Pressure
    3495psi
    Cylinder, Double-acting: Lift, Bore and Stroke
    120 mm × 1070 mm (4.7 in × 42.1 in)
    Cylinder, Double-acting: Tilt, Bore and Stroke
    95.25 mm × 216 mm (3.75 in × 8.5 in)
  • Hydraulic System - Steering

  • Bore
    4.5in
    Maximum System Flow
    170 L/min @ 1,800 rpm (44.9 gal/min @ 1,800 rpm)
    Steering Pressure Limited
    3481psi
    Steering System - Circuit
    Double Acting – End Mounted
    Steering System - Pump
    Piston – Variable Displacement
    Stroke
    22.7in
    Vehicle Articulation Angle
    86 degrees
  • Service Refill Capacities

  • Cooling System
    30.6gal (US)
    Diesel Exhaust Fluid Tank (Tier 4 Final/Stage IV)
    8.5gal (US)
    Differential - Final Drives - Front
    26.4gal (US)
    Differential - Final Drives - Rear
    29.1gal (US)
    Engine Crankcase
    9gal (US)
    Fuel Tank
    206.6gal (US)
    Hydraulic Tank Only
    35.4gal (US)
    Transmission
    17.4gal (US)
    Cooling System
    30.6gal
    Engine Crankcase
    9.0gal
    Transmission
    17.4gal
    Fuel Tank
    206.6gal
    Diesel Exhaust Fluid Tank (Tier 4 Final/Stage IV)
    8.5gal
    Differentials and Final Drives – Front
    26.4gal
    Differentials and Final Drives – Rear
    29.1gal
    Hydraulic Tank Only
    35.4gal
  • Transmission

  • Transmission Type
    Planetengetriebe – Lastschaltgetriebe – ECPC (Electronic Clutch Pressure Control, Elektronische Kupplungsdrucksteuerung)
    Travel Speeds - Forward - First
    3.4mile/h
    Travel Speeds - Forward - Second
    6mile/h
    Travel Speeds - Reverse - First
    3.9mile/h
    Travel Speeds - Reverse - Second
    6.9mile/h
    Transmission Type
    Planetary – Powershift – ECPC
    Travel Speeds: Forward – First
    3.4mph
    Travel Speeds: Forward – Second
    6.0mph
    Travel Speeds - Forward - Third
    10.7mile/h
    Travel Speeds: Reverse – First
    3.9mph
    Travel Speeds: Reverse – Second
    6.9mph
    Travel Speeds - Reverse - Third
    12.2mile/h
  • Axles

  • Front
    Planetary – Fixed
    Rear
    Planetary – Oscillating
    Oscillation Angle
    ±8°
    Front
    Planetary – Fixed
    Oscillation Angle
    ±8°
    Rear
    Planetary – Oscillating
  • Brakes

  • Parking Brake
    Drum and Shoe, Spring Applied, Hydraulic Released
  • Cab – Standard

  • Operator Sound Level (ISO 6396)
    73dB(A)
    Machine Sound Level (ISO 6395)
    113dB(A)
  • Cab – Suppression

  • Operator Sound Level (ISO 6396)
    72dB(A)
    Machine Sound Level (ISO 6395)
    110dB(A)
  • Hydraulic System – Steering

  • Steering System – Circuit
    Double Acting – End Mounted
    Bore
    4.5in
    Stroke
    22.7in
    Steering System – Pump
    Piston – Variable Displacement
    Maximum System Flow
    170 L/min @ 1,800 rpm (44.9 gal/min @ 1,800 rpm)
    Steering Pressure Limited
    3481psi
  • Blades

  • Moldboard Length
    14.4ft
    Height - Including Cutting Edge
    3.4ft
    Maximum Depth of Cut
    1.97ft
    Maximum Lift Above Ground
    3.14ft
    Blade Tip Angle - Total
    14,8°
    Blade Tip Angle - Forward
    7,3°
    Blade Tip Angle - Back
    7,5°
    Blade Tilt Angle - Right - Mechanical
    5,1°
    Blade Tilt Angle - Left - Mechanical
    4,1°
    Blade Tilt Angle - Right - Hydraulic
    6,3°
    Blade Tilt Angle - Left - Hydraulic
    5,4°
    Blade Tilt Angle – Right Full
    10.8°
    Blade Tilt Angle – Left Full
    10.1°
    Total Tilt Adjustment
    2.9ft
    Width Over End Bits
    15.18ft
    Blade Tilt Angle - Left Full
    10,1°
    Blade Tilt Angle - Right Full
    10,8°
    Maximum Depth of Cut
    1.97ft
    Maximum Lift Above Ground
    3.14ft
    Moldboard - Length
    14.4ft
    Width - Over End Bits
    15.18ft
  • Wheels

  • Weight
    16167lb
    Outside Diameter
    5.5ft
    Drum Diameter
    4.3ft
    Drum Width
    3.7ft
    Tips per Wheel
    65
    Width - Over Drums
    11.98ft
  • Braking System

  • Parking Brake
    Drum and Shoe, Spring Applied, Hydraulic Released

Equipment

  • Note
    • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • 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: – 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
  • 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)
  • 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)

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