834K Scoops for Coal & Woodchips

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SPECS SUMMARY

Engine ModelC18 Cat®
Operating Weight112838 lb (51290 kg)
Net Power496 HP (370 kW)
Bore5.7 in (145 mm)
Cat Wheel Dozers are designed with durability built in, ensuring maximum availability through multiple life cycles. With optimized performance and simplified serviceability, our machines allow you to support your job site efficiently and safely while lowering owning and operating costs. Introduced in the mid-1960's, the 834 has been the industry leader for almost 50 years. Focused on helping our customers succeed, we have continued to build upon each new series. The 834K continues our legacy of reliability, performance, safety, operator comfort, serviceability, and efficiency.

Specifications

Engine ModelC18 Cat®
Operating Weight112838 lb (51290 kg)
Net Power496 HP (370 kW)
Bore5.7 in (145 mm)
Stroke7.2 in (183 mm)
Displacement1105 in³ (18.1 l)
Cooling System31.7 gal (US) (120 l)
Crankcase15.9 gal (US) (60 l)
Transmission31.7 gal (US) (120 l)
FrontFixed
RearTrunnion
BrakesISO 3450: 2011
Chip Scoop Doze Capacity70 yd³ (53.5 m³)
Steering Cycle Times - Low Idle5.7 s (5.7 s)
TypeLarge capacity scoops for both wood chip and coal applications. A mesh screen integrated into the back of the scoop maintains visibility to the cutting edge. The chip scoop version has extra screens at the top due to higher capacity.
Note (1)The operator sound pressure level was measured according to the test procedures and conditions specified in ISO 6396:2008.
– The measurement was conducted at 70 percent of the maximum engine cooling fan speed.
Note (1)All non-road Tier 4 Final/Stage IV Technology diesel engines are required to use:
– Ultra Low Sulfur Diesel (ULSD) fuels containing 15 ppm (mg/kg) sulfur or less. Biodiesel blends up to B20 are acceptable when blended with 15 ppm (mg/kg) sulfur or less ULSD and when the biodiesel feedstock meets ASTM D7467 specifications.
– Cat DEO-ULS™ or oils that meet the Cat ECF-3, API CJ-4, and ACEA E9 specifications are required.
Steering System - CircuitPilot, load sensing
Steering System - PumpPiston, variable displacement
Relief Valve Setting - Steering3495 psi (24100 kPa)
Steering Cycle Times - High Idle3.1 s (3.1 s)
Total Steering Angle86°
Coal Scoop Doze Capacity60 yd³ (45.9 m³)
Maximum Flow65.8 gal/min (250 l/min)
Pilot SystemVariable displacement piston
Cylinders, Double Acting - Lift, Bore and Stroke170.0 mm × 1107 mm (6.7 in × 43.6 in)
Relief Valve Setting - Lift/Tilt4206 psi (29000 kPa)
Lift/Tilt System - CircuitPilot operated LS valve with EH
Cylinders, Double Acting - Left and Right Dump, Bore and Stroke127 mm × 838 mm (5.0 in × 33.0 in)
Air ConditioningThe air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.8 kg of refrigerant which has a CO2 equivalent of 2.574 metric tonnes.
Lift/Tilt SystemVariable displacement piston
Maximum Flow at 1,900 rpm153 gal/min (582 l/min)
Pilot Relief Valve Setting580 psi (4000 kPa)
ComponentsBoth scoops come with dual lift cylinders for increased lift capacity. Integrated stabilizer system makes sure that the scoop stays stable and centralized on the machine. Scoop tilt function is standard and provides ±15 degrees of tilt to maintain grade conditions and keep your operation safe.
Dump Angle at Full Lift Height64 deg
Note (3)Der Schallleistungspegel der Maschine wurde nach den Prüfverfahren und -bedingungen gemessen, wie sie in ISO 6395:2008 festgelegt sind.
– Die Messung wurde bei 70 Prozent der maximalen Drehzahl des Motorlüfters durchgeführt.
Height - Edge of Dumped Scoop5 ft (1520 mm)
Chip Scoop Carry Capacity35 yd³ (26.8 m³)
Note (2)*Only applicable to Tier 4 Final/Stage IV equipped machines.
Note (1)Der Schalldruckpegel am Fahrerohr wurde nach den in ISO 6396:2008 vorgegebenen Prüfverfahren und -bedingungen gemessen.
– Die Messung wurde bei 70 Prozent der maximalen Drehzahl des Motorlüfters durchgeführt.
Cylinders, Double Acting - Tilt, Bore and Stroke152.4 mm × 953 mm (6.0 in × 37.5 in)
Note (3)The machine sound power level was measured according to the test procedures and conditions specified in ISO 6395:2008.
– The measurement was conducted at 70 percent of the maximum engine cooling fan speed.
Operator Sound Level (ISO 6396)81 dB(A) (81 dB(A))
Note (2)Hearing protection may be needed when the machine is operated with a cab that is not properly maintained or when the doors or windows are open for extended periods or in a noisy environment.
Height - Edge of Retracted Scoop7.4 ft (2250 mm)
Operator Sound Level (ISO 6396)81 dB(A) (81 dB(A))
Note (3)Der Schallleistungspegel der Maschine wurde nach den Prüfverfahren und -bedingungen gemessen, wie sie in ISO 6395:2008 festgelegt sind.
– Die Messung wurde bei 70 Prozent der maximalen Drehzahl des Motorlüfters durchgeführt.
Machine Sound Level (ISO 6395)109 dB(A) (109 dB(A))
Machine Sound Level (ISO 6395)112 dB(A) (112 dB(A))
Note (2)Hearing protection may be needed when the machine is operated with a cab that is not properly maintained or when the doors or windows are open for extended periods or in a noisy environment.
Note (1)Der Schalldruckpegel am Fahrerohr wurde nach den in ISO 6396:2008 vorgegebenen Prüfverfahren und -bedingungen gemessen.
– Die Messung wurde bei 70 Prozent der maximalen Drehzahl des Motorlüfters durchgeführt.
NoteTravel speeds based on 35/65-R33 tire.
Coal Scoop Carry Capacity30 yd³ (22.9 m³)
Note (1)Der Schalldruckpegel am Fahrerohr wurde nach den in ISO 6396:2008 vorgegebenen Prüfverfahren und -bedingungen gemessen.
– Die Messung wurde bei 70 Prozent der maximalen Drehzahl des Motorlüfters durchgeführt.
Note (2)Hearing protection may be needed when the machine is operated with a cab that is not properly maintained or when the doors or windows are open for extended periods or in a noisy environment.
Note (3)Der Schallleistungspegel der Maschine wurde nach den Prüfverfahren und -bedingungen gemessen, wie sie in ISO 6395:2008 festgelegt sind.
– Die Messung wurde bei 70 Prozent der maximalen Drehzahl des Motorlüfters durchgeführt.
Pilot Maximum Flow13.7 gal/min (52 l/min)
Height - Top of Cab13.7 ft (4184 mm)
Wheel Base14.9 ft (4550 mm)
Forward - 27.2 mile/h (11.6 km/h)
Direct Drive - Forward 1Lock-up disabled
Forward - 422 mile/h (35.4 km/h)
Reverse - 313.3 mile/h (21.4 km/h)
Reverse - 14.2 mile/h (6.8 km/h)
Direct Drive - Forward 313.7 mile/h (22.1 km/h)
Reverse - 27.6 mile/h (12.2 km/h)
Direct Drive - Reverse 28.1 mile/h (13 km/h)
Forward - 14.2 mile/h (6.8 km/h)
Direct Drive - Forward 27.7 mile/h (12.4 km/h)
Direct Drive - Reverse 14.5 mile/h (7.2 km/h)
Transmission TypeCat planetary power shift
Forward - 312.6 mile/h (20.3 km/h)
Direct Drive - Reverse 314.3 mile/h (23 km/h)
Gross - SAE J1349562 HP (419 kW)
Peak Torque - 1,300 rpm2092 ft·lbf (2836 N·m)
Peak Power Speed1500/min
Net - SAE J1349496 HP (370 kW)
Torque Rise52%
EmissionsU.S. EPA Tier 4 Final/EU Stage IV, Tier 3 Equivalent, or Tier 2 Equivalent
Rated Speed1,900/min
Direct Drive - Forward 423.9 mile/h (38.5 km/h)
Oscillation Angle±13°
Ground Clearance1.7 ft (531 mm)
Machine Sound Level (ISO 6395)111 dB(A) (111 dB(A))
Height - Top of Hood10.9 ft (3334 mm)
Height - Top of Air Cleaner12.8 ft (3895 mm)
Centerline of Rear Axle to Edge of Bumper10.5 ft (3187 mm)
Length - Front of Tire28.4 ft (8715 mm)
Length - With Coal Scoop on Ground39.3 ft (11971 mm)
Ground to Center of Front Axle3.2 ft (978 mm)
Length - With Chip Scoop on Ground39.3 ft (11974 mm)
Centerline of Front Axle to Hitch7.5 ft (2275 mm)
Height - Top of Exhaust Stack14.8 ft (4498 mm)
Operator Sound Level (ISO 6396)73 dB(A) (73 dB(A))
Hydraulic System - Tank Only37 gal (US) (140 l)
Machine Sound Level (ISO 6395)109 dB(A) (109 dB(A))
Operator Sound Level (ISO 6396)72 dB(A) (72 dB(A))
Chip Scoop Operating Weight112838 lb (51290 kg)
Coal Scoop Operating Weight112428 lb (51103 kg)
Fuel Tank209.5 gal (US) (793 l)
Diesel Exhaust Fluid Tank*8.7 gal (US) (33 l)
Hydraulic System Factory Fill63.4 gal (US) (240 l)
Differential - Final Drives - Front49.1 gal (US) (186 l)
Differential - Final Drives - Rear49.1 gal (US) (186 l)
Note (2)Hearing protection may be needed when the machine is operated with a cab that is not properly maintained or when the doors or windows are open for extended periods or in a noisy environment.

Benefits and Features

Cat C18 Engine

The Cat C18 engine is built and tested to meet your most demanding applications. Three C18 engine options are available in this machine: Tier 4 Final/Stage IV with aftertreatment, Tier 3 equivalent, or Tier 2 equivalent.

  • Fully integrated electronic engine controls works in concert with the entire machine to make your fuel go farther.
  • Use less fuel idling with Engine Idle Shutdown.
  • Maximized durability with Delayed Engine Shutdown.

Cat Planetary Powershift Transmission

Featuring all new Advanced Productivity Electronic Control Shifting (APECS) transmission controls provides greater momentum on grades and fuel savings by carrying that momentum through the shift points.

Impeller Clutch Torque Converter (ICTC)

Enable your operators to maximize efficiency by varying machine rimpull while putting more horsepower to hydraulics.

  • Reduced tire wear
  • Enables full throttle shifts for faster cycle times
  • Provides smooth approach to the dump target for less spillage and faster cycle times.

Cat Torque Converter with Lock-up Clutch

  • Eliminates TC losses while lowering system heat
  • Improves travel speeds
  • Reduces cycle times in load and carry operations

Improved Hydraulic Efficiency

  • New flow sharing implement and steering variable displacement load sensing piston pumps.
  • Hydraulic flow now on demand, for improved fuel efficiency.

Robust Structures

Your bottom line is improved by highly durable structures that achieve multiple life cycles and withstand the toughest conditions.

  • Full box-section rear frame resists torsional shock and twisting forces.
  • Heavy-duty steering cylinder mounts efficiently transmit steering loads into the frame.
  • Axle mounting has been optimized for increased structural integrity.
  • Lower hitch pin, frame plate, and bearing size have been increased for longer life.

Robust Structures Design

  • Push beams are through-width, not merely attached to side of frame.
  • In corner dozing, stresses are transferred and absorbed through a larger portion of the frame.

Steering and Transmission Integrated Control System (STIC™)

Experience maximum responsiveness and control with STIC that combines directional selection, gear selection and steering into a single lever.

  • Simple side-to-side motion turns machine right or left, minimizing operator movements.
  • Easy to operate finger controlled gear selection.
  • Smoother, faster cycles and less operator fatigue through the use of low effort integrated controls.

Cat Planetary Powershift Transmission

Building your success begins with a best-in-class transmission designed specifically for mining applications.

  • Consistent, smooth shifting and efficiency through integrated electronic controls that utilize Advanced Productivity Electronic Control Strategy (APECS).
  • Long life and reliability through heat treat gear and metallurgy.
  • Four forward and three reverse speeds to match your application.

Cat C18 Engine

Durability and efficiency at the heart of your 834K comes from the Cat C18 Engine. Optimum performance is built in through the use of a 6 cylinder, four-stroke design.

  • Optimized performance and quick engine response with an electronic control module.
  • Reliable efficiency with complete control over injection timing, duration and pressure with Mechanically Actuated Electronic Unit Injection (MEUI™).
  • Extended engine life and improved fuel efficiency with reduced rated speed.
  • Option of: Tier 4 Final/Stage IV emissions standards, Tier 3 equivalent, or Tier 2 equivalent.

Impeller Clutch Torque Converter (ICTC) and Rimpull Control System (RCS)

Lower your operating costs utilizing advanced ICTC and RCS for modulated rimpull.

  • Reduce tire slippage and wear by modulating rimpull from 100 to 25 percent while depressing left pedal. After 25 percent rimpull is achieved the left pedal applies the brake.
  • Reduce the potential for wheel slippage without reducing hydraulic efficiency with RCS.
  • Improve fuel efficiency in certain applications with our lock-up clutch torque converter providing direct drive.

Operator Station

Your operators can work more efficiently and stay comfortable with our customer-inspired cab features.

Entry and Exit

Enter and exit the cab easily and safely with these newly designed, ergonomic features.

  • Fold up STIC steer/armrest.
  • Reduced angles on access stairways.
  • Standard stairway lighting.

Cat Comfort Series III Seat

Enhance comfort and reduce operator fatigue with Cat Comfort Series III seat.

  • Mid back design and extra thick, contoured cushions.
  • Air suspension system.
  • Easy-to-reach seat levers and controls for six way adjustments.
  • Seat-mounted implement pod and STIC steer that moves with the seat.
  • 76 mm (3 in) wide retractable seat belt.

Control Panel

Ergonomic placement of switches and Information display keep your operators comfortable all day every day.

  • Large backlit membrane switches feature LED activation indicators.
  • Switches feature ISO symbols for quick function identification.
  • Two position rocker switch activates the electro hydraulic park brake.

Environment

Your operator's productivity is enhanced with our clean, comfortable cab environment.

  • Experience reduced vibrations from isolation cab mounts and seat air suspension.
  • Maintain desired cab temperature with automatic temperature controls.
  • Pressurized cab with filtered air.
  • Sound level reduced to a quiet 71 dB(A) when equipped with the sound suppression package.
  • Convenient floor storage tray/lunch box.

Technology Solutions

The 834K electronic systems have been completely integrated to function as one machine. This integration creates a smart machine and more informed operator, maximizing the productivity of both.

Cat Product Link™

Cat Product Link allows remote monitoring of equipment to improve overall fleet management effectiveness. Events and diagnostic codes, as well as hours, fuel, idle time and other information are transmitted to a secure web based application, VisionLink™. VisionLink includes powerful tools to convey information to users and dealers, including mapping, working and idle time, fuel level and more.

VIMS™ 3G

We have worked hard to help our customers and operators perform at their best through our Vital Information Management System (VIMS 3G).

  • Easy-to-view graphical information display features a large touch screen interface.
  • Intuitive operation and easy navigation with our enhanced user interface.
  • Decrease service time by keeping operators informed about machine system malfunction or operation.

Cat MineStar System is the industry's broadest suite of integrated mine operations and mobile equipment management technologies, configurable to suit your operation's needs. Its capability sets – Fleet, Terrain, Detect, Health and Command – contain a range of technologies that let you manage everything from fleet assignment and condition monitoring to remote and autonomous control. The 834K can take advantage of many of these advanced technologies, some of which are standard out of the factory.

Fleet

Fleet provides comprehensive, real-time machine tracking, assignment and productivity management, giving you a comprehensive overview of all operations from anywhere in the world.

Terrain for Loading

Terrain with your 834K enables high-precision management of loading operations through the use of guidance technology. It increases 834K productivity and provides you real-time feedback for improved efficiency.

Detect

Detect helps increase operator awareness, enhancing safety at your operation. It includes a range of capabilities designed to assist the operator with areas of limited visibility around fixed and mobile equipment.

Health

Health delivers critical event-based machine condition and operating data for your entire fleet. It includes comprehensive equipment health and asset monitoring capabilities, with a wide range of diagnostic, analytic and reporting tools.

We are constantly introducing features on our machines in an effort to enhance safety for the operator.

Machine Access

  • Left and right hand stairs with 45 degree angle enhance safety for operators getting on and off the 834K.
  • Continuous walkway with non-skid surfaces are designed into the service areas.
  • Maintain three points of contact at all times through ground level or platform accessible service areas.

Visibility

  • Optional heated mirrors ensure enhanced visibility for safe operation.
  • Standard Cat Vision or optional Cat Detect with radar increase operator awareness around the machine.
  • LED lights provide excellent workspace visibility.
  • Optional cab mounted LED warning beacons.

Operator Environment

  • 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.
  • Standard 76 mm (3 in) seat belts on the operator seat.

Sustainability is designed and built into our 834K's features.

  • Engine Idle Shutdown and Auto Idle Kickdown can help you save fuel by avoiding unnecessary idling.
  • Reduce waste generation with our maintenance free batteries.
  • The 834K is built for multiple lives. To assist with maximizing machine life, Caterpillar provides a number of sustainable options such as our Reman and Certified Rebuild programs. In these programs, reused or remanufactured components can deliver cost savings of 40 to 70 percent, which lowers operating cost.
  • Caterpillar offers retrofit packages to bring new features to older machines, maximizing your resource. And, when you go through the Cat Certified Rebuild program, these retrofit kits are part of the rebuild process.

Purpose Built Front Linkage

Cat wood chip and coal scoops have the unique capability of maximizing your production by both dozing and carrying a load with each pass. A purpose built hydraulic system is optimized for use with this work tool to maximize machine productivity and efficiency. Dual lift cylinders provide hydraulic lift capacity matched to the demands of the application.

Oscillating Rear Axle

The fixed front axle and oscillating rear axle ensures four-wheel ground contact for optimum traction and stability. The front axle is rigidly mounted to the front loader frame, while the rear axle is allowed to oscillate. This configuration allows the operator's view of the scoop to remain constant as the rear axle oscillates enabling the operator to maintain a smooth and properly graded work area in any underfoot conditions.

The 834K has several features to achieve greater fuel efficiency:

  • Positive Flow Control Hydraulics – Provides only the hydraulic flow required by the implement and steering systems for improved fuel efficiency and greater rimpull.
  • Engine – Advanced engine controls maximizes power and efficiency.
  • Engine Idle Shutdown – Automatic engine and electrical system shutdown conserves fuel.
  • Lock-up Torque Converter – Transfers more power to the ground and optimizes fuel efficiency in all applications.
  • Advanced Productivity Electronic Control Strategy (APECS) – All new APECS transmission controls provides greater momentum on grades and fuel savings by carrying that momentum through the shift points.

Machine configuration, operator technique, and job site layout can impact fuel consumption.

  • Machine Configuration – Select the correct work tool and tire type based on machine application. Ensure proper inflation pressures.
  • Idle – Set the parking brake to engage Engine Idle Management System.

We can help you succeed by ensuring your 834K has design features to reduce your downtime.

  • Safe and convenient service with ground level or platform access and grouped service points.
  • Swing-out doors on both sides of the engine compartment provide easy access to important daily service checks.
  • Ecology drains for ease of service and prevention of spilling potential environmental contaminants.
  • Reduce downtime with VIMS system notifications so your operators and technicians can resolve any problems before failure.
  • Ground level access to transmission control valves.

Legendary Cat Dealer Support

A valued partner, your Cat dealer is available whenever you need them.

  • Preventive maintenance programs and guaranteed maintenance contracts.
  • Best-in-class parts availability.
  • Improve your efficiency with operator training.
  • Genuine Cat Remanufactured parts.

Standard Equipment

  • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • Alarm, back-up
  • Alternator (100 amp)
  • Batteries, maintenance-free
  • Deutsch terminal connectors
  • Electrical system (24V)
  • Lighting system, halogen (front and rear), access stairway
  • Starter, electric (heavy-duty)
  • Starting receptacle for emergency starts
  • Air conditioner
  • Cab, sound suppressed and pressurized
  • Internal four-post rollover protective structure (ROPS/FOPS), radio ready (entertainment) includes antenna, speakers and converter (12V, 15 amp), 12V power port, tinted glass
  • Cigar lighter (12V, 15 amp) and ashtray
  • Coat hook
  • Electro-Hydraulic tilt, tip controls
  • Heater and defroster
  • Horn, electric
  • Light, cab (dome)
  • Lock-up clutch disable switch
  • Lunchbox and beverage holders
  • Monitoring system (VIMS 3G)
  • Action alert system, three category
  • Instrumentation, gauges:
    – Engine coolant temperature
    – Fuel level
    – Hydraulic oil temperature
    – Speedometer/tachometer
    – Transmission oil temperature
    – Instrumentation, warning indicators
    – Axle/brake oil temperature (front/rear)
    – Brake oil pressure
    – Electrical system, low voltage
    – Engine intake/combustion air temperature
    – Engine oil pressure
    – Engine overspeed
    – Fuel pressure
    – Hydraulic oil filter status
    – Parking brake status
    – Transmission filter status
    – Cat Vision (rear vision camera)
  • Mirrors, rearview (externally mounted)
  • Rimpull select switch
  • Seat, Comfort Series (cloth), air suspension
  • Seat belt, retractable, 76 mm (3 in) wide
  • STIC control system with steering lock
  • Tilt and lift control system lock
  • Transmission gear indicator
  • Wet-arm wipers/washers (front and rear)
  • Intermittent front wiper
  • Brakes, full hydraulic, enclosed, wet-disc
  • Multiple disc service brakes
  • Case drain filters
  • Demand fan
  • Engine, Cat C18 MEUI, ATAAC, ADEM™ IV controller
  • Fuel priming pump (electric)
  • Parking brake
  • Precleaner, engine air intake
  • Radiator, Next Generation Modular
  • Radiator (NGMR)
  • Separated cooling system
  • Starting aid (ether) automatic
  • Throttle lock
  • Torque converter, impeller clutch with lock-up control system and rimpull control system (switch and dial in cab)
  • Transmission, planetary, autoshift (4F/3R)
  • Doors, service access (locking)
  • Engine, crankcase, 500 hour interval with CH-4 oil
  • Grouped Electronic Clutch Pressure
  • Control, remote mounted pressure taps
  • Hitch, drawbar with pin
  • Hood, metallic with lockable service doors
  • Hydraulic oil cooler
  • Muffler (under hood)
  • Oil sampling valves
  • Stairway, left side (rear access)
  • Steering, load sensing
  • Vandalism protection caplocks
  • Venturi stack
  • ±15 degree scoop tilt
  • A tire must be selected from the mandatory attachments section – base machine price includes a tire allowance
  • Premixed 50 percent concentration of Extended Life Coolant with freeze protection to –34° C (–29° F)

Optional Equipment

  • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • –50° C (–58° F) antifreeze
  • Engine oil change system, high speed, Wiggins
  • Engine block heater 120V or 240V
  • Engine compression brake
  • Automatic retarding control (with engine compression brake)
  • Axle oil cooler
  • Second starter
  • Jacket water heater
  • Crankcase guards
  • Cab precleaner
  • AM/FM/CD/MP3 radio
  • Satellite Sirius radio with Bluetooth
  • LED warning strobe
  • CB radio ready
  • Window pull down visor
  • Sound suppression
  • Visor group – cab pull-down shade
  • Cat Detect (rear object detection)
  • Front and rear roading fenders
  • Fast fill fuel system (Shaw-Aero)
  • Cat Detect
  • Halogen and HID lights