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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.

Cat Specs
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Engine

Net Power
405 HP
Engine Model
C15 Cat®
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
435 HP
Bore
5.4 in
Stroke
6.7 in
Displacement
927.6 in²
Maximum Altitude - Without Derating (Tier 3 Final/Stage IIIA Equivalent)
9098 ft
Rated Power (Net ISO 9249)
405 HP
Net Power - Direct Drive - Gross Power
412 HP
Net Power - Converter Drive - Gross Power
435 HP
Net Power - Direct Drive - Torque Rise
33%
Net Power - Converter Drive - Torque Rise
8,5%
High Idle Speed
2300 r/min
Low Idle Speed
800 r/min
Maximum Net Torque - 1,300 rpm
1478.8 lb/ft
Rated Power (Net SAE J1349)
405 HP
Maximum Altitude - Without Derating (Tier 4 Final/Stage IV)
9298 ft

Operating Specifications

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

Transmission

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

Service Refill Capacities

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

Axles

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

Hydraulic System

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

Blades

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

Dimensions (Approximate)

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

Wheels

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

Braking System

Parking Brake
Drum and Shoe, Spring Applied, Hydraulic Released

Hydraulic System - Steering

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

Cab - Suppression

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

Cab - Standard

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