Compactors 825K Setting the Bar in Compaction

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825K
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825K

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Overview

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.

Features At A Glance

POWERFUL EFFICIENCY

Auto shift mode, when active, allows 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

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

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

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

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

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

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

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

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.

Full Specifications Standard Equipment Optional Equipment

Product Specifications for 825K

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US
Metric

Engine

Engine Model	C15 Cat® C15 Cat®
Net Power	405 HP 302 kW
Rated Power (Net ISO 9249)	405 HP 302 kW
Maximum Net Torque - 1,300 rpm	1478.8 lb/ft 2005 N·m
Maximum Altitude - Without Derating (Tier 4 Final/Stage IV)	9298 ft 2834 m
Net Power - Converter Drive - Gross Power	435 HP 324 kW
Stroke	6.7 in 171.4 mm
Net Power - Converter Drive - Torque Rise	8,5% 8,5%
Gross Power	435 HP 324 kW
High Idle Speed	2300 r/min 2300 r/min
Rated Power (Net SAE J1349)	405 HP 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 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 800 r/min
Net Power - Direct Drive - Torque Rise	33% 33%
Maximum Altitude - Without Derating (Tier 3 Final/Stage IIIA Equivalent)	9098 ft 2773 m
Net Power - Direct Drive - Gross Power	412 HP 307 kW
Bore	5.4 in 137.2 mm
Displacement	927.6 in³ 15.2 l

Operating Specifications

Operating Weight	78326 lb 35528 kg
Operating Weight - Tier 3 Final/Stage IIIA Equivalent	77340 lb 35081 kg
Operating Weight - Tier 4 Final/Stage IV	78326 lb 35528 kg

Transmission

Travel Speeds - Reverse - First	3.9 mile/h 6.2 km/h
Travel Speeds - Forward - First	3.4 mile/h 5.5 km/h
Travel Speeds - Reverse - Third	12.2 mile/h 19.7 km/h
Travel Speeds - Reverse - Second	6.9 mile/h 11.1 km/h
Travel Speeds - Forward - Third	10.7 mile/h 17.2 km/h
Transmission Type	Planetengetriebe – Lastschaltgetriebe – ECPC (Electronic Clutch Pressure Control, Elektronische Kupplungsdrucksteuerung) Planetengetriebe – Lastschaltgetriebe – ECPC (Electronic Clutch Pressure Control, Elektronische Kupplungsdrucksteuerung)
Travel Speeds - Forward - Second	6 mile/h 9.7 km/h

Cab - Standard

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

Dimensions (Approximate)

Ground Clearance	1.6 ft 492 mm
Length - With Blade on Ground	28.1 ft 8561 mm
Height - Top of Exhaust Pipe	14.1 ft 4290 mm
Hitch to Centerline of Front Axle	6.1 ft 1850 mm
Turning Radius - Inside of Push Arms	8.6 ft 2627 mm
Centerline of Rear Axle to Edge of Counterweight	9.3 ft 2830 mm
Wheel Base	12.1 ft 3700 mm
Ground Clearance - Bumper	2.7 ft 810 mm
Height - Top of Beacon	14.4 ft 4381 mm
Height - ROPS/Canopy	13.3 ft 4059 mm
Height - Top of Hood	10.4 ft 3162 mm
Width - Over Wheels	11.98 ft 3650 mm

Service Refill Capacities

Hydraulic Tank Only	35.4 gal (US) 134 l
Differential - Final Drives - Rear	29.1 gal (US) 110 l
Fuel Tank	206.6 gal (US) 782 l
Cooling System	30.6 gal (US) 116 l
Differential - Final Drives - Front	26.4 gal (US) 100 l
Transmission	17.4 gal (US) 66 l
Diesel Exhaust Fluid Tank (Tier 4 Final/Stage IV)	8.5 gal (US) 32 l
Engine Crankcase	9 gal (US) 34 l

Axles

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

Hydraulic System

Maximum Supply Pressure	3495 psi 24100 kPa
Main Relief Pressure	3495 psi 24100 kPa
Cylinders, Double Acting - Tilt, Bore and Stroke	95.25 mm × 216 mm (3.75 in × 8.5 in) 95.25 mm × 216 mm (3.75 in × 8.5 in)
Pump Flow at 1,800 rpm	30.9 gal/min 117 l/min
Cylinders, Double Acting - Lift, Bore and Stroke	120 mm × 1070 mm (4.7 in × 42.1 in) 120 mm × 1070 mm (4.7 in × 42.1 in)

Blades

Total Tilt Adjustment	2.9 ft 890 mm
Maximum Lift Above Ground	3.14 ft 958 mm
Moldboard - Length	14.4 ft 4390 mm
Blade Tilt Angle - Left - Mechanical	4,1° 4,1°
Width - Over End Bits	15.18 ft 4628 mm
Blade Tilt Angle - Left - Hydraulic	5,4° 5,4°
Blade Tip Angle - Total	14,8° 14,8°
Maximum Depth of Cut	1.97 ft 602 mm
Height - Including Cutting Edge	3.4 ft 1032 mm
Blade Tip Angle - Forward	7,3° 7,3°
Blade Tilt Angle - Right - Mechanical	5,1° 5,1°
Blade Tip Angle - Back	7,5° 7,5°
Blade Tilt Angle - Right - Hydraulic	6,3° 6,3°
Blade Tilt Angle - Left Full	10,1° 10,1°
Blade Tilt Angle - Right Full	10,8° 10,8°

Hydraulic System - Steering

Maximum System Flow	170 L/min @ 1,800 rpm (44.9 gal/min @ 1,800 rpm) 170 L/min @ 1,800 rpm (44.9 gal/min @ 1,800 rpm)
Stroke	22.7 in 576 mm
Steering System - Circuit	Double Acting – End Mounted Double Acting – End Mounted
Vehicle Articulation Angle	86 degrees 86 degrees
Bore	4.5 in 114.3 mm
Steering Pressure Limited	3481 psi 24000 kPa
Steering System - Pump	Piston – Variable Displacement Piston – Variable Displacement

Wheels

Weight	16167 lb 7333 kg
Drum Width	3.7 ft 1125 mm
Drum Diameter	4.3 ft 1299 mm
Tips per Wheel	65 65
Width - Over Drums	11.98 ft 3650 mm
Outside Diameter	5.5 ft 1672 mm

Cab - Suppression

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

Brakes

Parking Brake

Drum and Shoe, Spring Applied, Hydraulic Released Drum and Shoe, Spring Applied, Hydraulic Released

825K Standard Equipment

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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

825K Optional Equipment

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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)

See how 825K compares against frequently compared products.

US
Metric

Compactors 825K

825K

Engine Model: C15 Cat®; C15 Cat®
Net Power: 405 HP; 302 kW
Operating Weight: 78326 lb; 35528 kg

Selected Model

Compactors 815K

815K

Engine Model: Cat® C7.1: configured for two emissions options; Cat® C7.1: configured for two emissions options
Net Power: 248 HP; 185 kW
Bore: 4.1 in; 105 mm

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