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825K Soil Compactor

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.

Engine

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

Operating Specifications

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

Transmission

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

Cab - Standard

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

Dimensions (Approximate)

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

Service Refill Capacities

Hydraulic Tank Only 35.4gal (US)
Differential - Final Drives - Rear 29.1gal (US)
Fuel Tank 206.6gal (US)
Differential - Final Drives - Front 26.4gal (US)
Transmission 17.4gal (US)
Diesel Exhaust Fluid Tank (Tier 4 Final/Stage IV) 8.5gal (US)

Axles

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

Hydraulic System

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

Blades

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

Hydraulic System - Steering

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

Wheels

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

Cab - Suppression

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

Braking System

Parking Brake Drum and Shoe, Spring Applied, Hydraulic Released

Standard 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

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)
  • 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)