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825K Soil Compactor

825K Soil Compactor

At a Glance

Engine Model
C15 Cat®
Net Power
405 HP
Operating Weight
78326 lb
Net Power - Direct Drive - Torque Rise
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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.


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Engine Model C15 Cat®
Net Power 405HP
Net Power - Direct Drive - Torque Rise 33%
Net Power - Converter Drive - Torque Rise 8,5%
Maximum Altitude - Without Derating (Tier 3 Final/Stage IIIA Equivalent) 9098ft
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

Operating Specifications

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


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Travel Speeds - Forward - Third 10.7mile/h
Travel Speeds - Reverse - Third 12.2mile/h
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

Hydraulic System

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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)
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

Hydraulic System - Steering

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Vehicle Articulation Angle 86 degrees
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


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Height - Including Cutting Edge 3.4ft
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°
Total Tilt Adjustment 2.9ft
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


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

Dimensions (Approximate)

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Turning Radius - Inside of Push Arms 8.6ft
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


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

Braking System

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Parking Brake Drum and Shoe, Spring Applied, Hydraulic Released

Cab - Standard

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

Cab - Suppression

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

Service Refill Capacities

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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)
Fuel Tank 206.6gal (US)
Hydraulic Tank Only 35.4gal (US)
Transmission 17.4gal (US)
Cooling System 30.6gal (US)
Engine Crankcase 9gal (US)