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 Model
C15 Cat�
Net Power
302 kW
Operating Weight
35528 kgProduct specifications for 825K Soil Compactors
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
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Engine Model
C15 Cat�
Net Power
302 kW
Rated Power (Net ISO 9249)
302 kW
Maximum Net Torque – 1,300 rpm
2005 N·m
Maximum Altitude – Without Derating (Tier 4 Final/Stage IV)
2834 m
Net Power – Converter Drive – Gross Power
324 kW
Stroke
171.4 mm
Net Power – Converter Drive – Torque Rise
8,5%
Gross Power
324 kW
High Idle Speed
2300 r/min
Rated Power (Net SAE J1349)
302 kW
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
800 r/min
Net Power – Direct Drive – Torque Rise
33%
Maximum Altitude – Without Derating (Tier 3 Final/Stage IIIA Equivalent)
2773 m
Net Power – Direct Drive – Gross Power
307 kW
Bore
137.2 mm
Displacement
15.2 l
Operating Specifications
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Operating Weight
35528 kg
Operating Weight – Tier 3 Final/Stage IIIA Equivalent
35081 kg
Operating Weight – Tier 4 Final/Stage IV
35528 kg
Transmission
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Travel Speeds – Reverse – First
6.2 km/h
Travel Speeds – Forward – First
5.5 km/h
Travel Speeds – Reverse – Third
19.7 km/h
Travel Speeds – Reverse – Second
11.1 km/h
Travel Speeds – Forward – Third
17.2 km/h
Transmission Type
Planetengetriebe � Lastschaltgetriebe � ECPC (Electronic Clutch Pressure Control, Elektronische Kupplungsdrucksteuerung)
Travel Speeds – Forward – Second
9.7 km/h
Cab – Standard
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Machine Sound Level (ISO 6395)
113 dB(A)
Operator Sound Level – ISO 6396
73 dB(A)
Dimensions (Approximate)
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Ground Clearance
492 mm
Length – With Blade on Ground
8561 mm
Height – Top of Exhaust Pipe
4290 mm
Hitch to Centerline of Front Axle
1850 mm
Turning Radius – Inside of Push Arms
2627 mm
Centerline of Rear Axle to Edge of Counterweight
2830 mm
Wheel Base
3700 mm
Ground Clearance – Bumper
810 mm
Height – Top of Beacon
4381 mm
Height – ROPS/Canopy
4059 mm
Height – Top of Hood
3162 mm
Width – Over Wheels
3650 mm
Service Refill Capacities
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Hydraulic Tank Only
134 l
Differential – Final Drives – Rear
110 l
Fuel Tank
782 l
Cooling System
116 l
Differential – Final Drives – Front
100 l
Transmission
66 l
Diesel Exhaust Fluid Tank (Tier 4 Final/Stage IV)
32 l
Engine Crankcase
34 l
Axles
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Oscillation Angle
�8�
Rear
Planetary � Oscillating
Front
Planetary � Fixed
Hydraulic System
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Maximum Supply Pressure
24100 kPa
Main Relief Pressure
24100 kPa
Cylinders, Double Acting – Tilt, Bore and Stroke
95.25 mm � 216 mm (3.75 in � 8.5 in)
Pump Flow at 1,800 rpm
117 l/min
Cylinders, Double Acting – Lift, Bore and Stroke
120 mm � 1070 mm (4.7 in � 42.1 in)
Blades
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Total Tilt Adjustment
890 mm
Maximum Lift Above Ground
958 mm
Moldboard – Length
4390 mm
Blade Tilt Angle – Left – Mechanical
4,1�
Width – Over End Bits
4628 mm
Blade Tilt Angle – Left – Hydraulic
5,4�
Blade Tip Angle – Total
14,8�
Maximum Depth of Cut
602 mm
Height – Including Cutting Edge
1032 mm
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
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Maximum System Flow
170 L/min @ 1,800 rpm (44.9 gal/min @ 1,800 rpm)
Stroke
576 mm
Steering System – Circuit
Double Acting � End Mounted
Vehicle Articulation Angle
86 degrees
Bore
114.3 mm
Steering Pressure Limited
24000 kPa
Steering System – Pump
Piston � Variable Displacement
Wheels
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Weight
7333 kg
Drum Width
1125 mm
Drum Diameter
1299 mm
Tips per Wheel
65
Width – Over Drums
3650 mm
Outside Diameter
1672 mm
Cab – Suppression
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Operator Sound Level – ISO 6396
72 dB(A)
Machine Sound Level (ISO 6395)
110 dB(A)
Braking System
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Parking Brake
Drum and Shoe, Spring Applied, Hydraulic Released
POWERFUL EFFICIENCY
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Auto shift mode, when active, allows the 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
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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
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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
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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
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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
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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
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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
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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
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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.
825K Standard Equipment
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NOTE
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Standard and optional equipment may vary. Consult your Cat dealer for details.
POWER TRAIN
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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
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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
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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
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Wheels, tamping tips
GUARDS
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Guard, driveshaft
Guards, crankcase and power train
BLADES
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Bulldozer straight blade, hydraulics, and linkage are included in the base machine
FLUIDS
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Antifreeze, premixed 50% concentration extended life (–34° C/–29° F)
OTHER STANDARD EQUIPMENT
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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
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NOTE
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Standard and optional equipment may vary. Consult your Cat dealer for details.
OPERATOR ENVIRONMENT
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Camera, rear vision
Radio, AM/FM/AUX/USB/BLUETOOTH
Radio, CB (ready)
TECHNOLOGY PRODUCTS
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Compaction control, basic
FLUIDS
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Antifreeze, –50° C (–58° F)
STARTING AIDS
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Heater, engine coolant, 120V
Heater, engine coolant, 240V
MISCELLANEOUS
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Film (ANSI) (Tier 4 Final/Stage IV)
EU certification (Tier 4 Final/Stage IV)
Plate – year of manufacture (Tier 3/Stage III Equivalent)
