Wheel Dozers 834K Scoops for Coal & Woodchips

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Key Specs

Engine Model
C18 Cat®
C18 Cat®
Operating Weight
112838 lb
51290 kg
Net Power
496 HP
370 kW

Overview

Durability and efficiency in your toughest conditions

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.

Product Specifications for 834K Scoops for Coal & Woodchips

Engine Model C18 Cat® C18 Cat®
Net Power 496 HP 370 kW
Bore 5.7 in 145 mm
Stroke 7.2 in 183 mm
Displacement 1105 in³ 18.1 l
Rated Speed 1,900/min 1,900/min
Emissions U.S. EPA Tier 4 Final/EU Stage IV, Tier 3 Equivalent, or Tier 2 Equivalent U.S. EPA Tier 4 Final/EU Stage IV, Tier 3 Equivalent, or Tier 2 Equivalent
Torque Rise 52% 52%
Net - SAE J1349 496 HP 370 kW
Peak Power Speed 1500/min 1500/min
Peak Torque - 1,300 rpm 2092 ft·lbf 2836 N·m
Gross - SAE J1349 562 HP 419 kW
Direct Drive - Reverse 3 14.3 mile/h 23 km/h
Forward - 3 12.6 mile/h 20.3 km/h
Direct Drive - Reverse 1 4.5 mile/h 7.2 km/h
Forward - 2 7.2 mile/h 11.6 km/h
Direct Drive - Forward 2 7.7 mile/h 12.4 km/h
Forward - 1 4.2 mile/h 6.8 km/h
Direct Drive - Reverse 2 8.1 mile/h 13 km/h
Reverse - 2 7.6 mile/h 12.2 km/h
Direct Drive - Forward 3 13.7 mile/h 22.1 km/h
Reverse - 1 4.2 mile/h 6.8 km/h
Reverse - 3 13.3 mile/h 21.4 km/h
Forward - 4 22 mile/h 35.4 km/h
Direct Drive - Forward 1 Lock-up disabled Lock-up disabled
Direct Drive - Forward 4 23.9 mile/h 38.5 km/h
Transmission Type Cat planetary power shift Cat planetary power shift
Note Travel speeds based on 35/65-R33 tire. Travel speeds based on 35/65-R33 tire.
Brakes ISO 3450: 2011 ISO 3450: 2011
Front Fixed Fixed
Rear Trunnion Trunnion
Oscillation Angle ±13° ±13°
Operating Weight 112838 lb 51290 kg
Cooling System 31.7 gal (US) 120 l
Crankcase 15.9 gal (US) 60 l
Transmission 31.7 gal (US) 120 l
Hydraulic System - Tank Only 37 gal (US) 140 l
Differential - Final Drives - Rear 49.1 gal (US) 186 l
Differential - Final Drives - Front 49.1 gal (US) 186 l
Hydraulic System Factory Fill 63.4 gal (US) 240 l
Diesel Exhaust Fluid Tank* 8.7 gal (US) 33 l
Fuel Tank 209.5 gal (US) 793 l
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.
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.
Note (2) *Only applicable to Tier 4 Final/Stage IV equipped machines. *Only applicable to Tier 4 Final/Stage IV equipped machines.
Coal Scoop Operating Weight 112428 lb 51103 kg
Chip Scoop Operating Weight 112838 lb 51290 kg
Operator Sound Level (ISO 6396) 72 dB(A) 72 dB(A)
Machine Sound Level (ISO 6395) 109 dB(A) 109 dB(A)
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.
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 (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. 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) 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. 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) 73 dB(A) 73 dB(A)
Machine Sound Level (ISO 6395) 111 dB(A) 111 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. 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) 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. 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 (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. 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.
Height - Top of Exhaust Stack 14.8 ft 4498 mm
Centerline of Front Axle to Hitch 7.5 ft 2275 mm
Length - With Chip Scoop on Ground 39.3 ft 11974 mm
Ground to Center of Front Axle 3.2 ft 978 mm
Length - With Coal Scoop on Ground 39.3 ft 11971 mm
Height - Top of Cab 13.7 ft 4184 mm
Length - Front of Tire 28.4 ft 8715 mm
Centerline of Rear Axle to Edge of Bumper 10.5 ft 3187 mm
Height - Top of Air Cleaner 12.8 ft 3895 mm
Height - Top of Hood 10.9 ft 3334 mm
Ground Clearance 1.7 ft 531 mm
Wheel Base 14.9 ft 4550 mm
Height - Edge of Dumped Scoop 5 ft 1520 mm
Height - Edge of Retracted Scoop 7.4 ft 2250 mm
Dump Angle at Full Lift Height 64 deg 64 deg
Coal Scoop Carry Capacity 30 yd³ 22.9 m³
Type Large 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. Large 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.
Components Both 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. Both 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.
Coal Scoop Doze Capacity 60 yd³ 45.9 m³
Chip Scoop Carry Capacity 35 yd³ 26.8 m³
Chip Scoop Doze Capacity 70 yd³ 53.5 m³
Pilot Maximum Flow 13.7 gal/min 52 l/min
Pilot Relief Valve Setting 580 psi 4000 kPa
Maximum Flow at 1,900 rpm 153 gal/min 582 l/min
Lift/Tilt System Variable displacement piston Variable displacement piston
Cylinders, Double Acting - Left and Right Dump, Bore and Stroke 127 mm × 838 mm (5 in × 33 in) 127 mm × 838 mm (5 in × 33 in)
Lift/Tilt System - Circuit Pilot operated LS valve with EH Pilot operated LS valve with EH
Relief Valve Setting - Lift/Tilt 4206 psi 29000 kPa
Cylinders, Double Acting - Lift, Bore and Stroke 170 mm × 1107 mm (6.7 in × 43.6 in) 170 mm × 1107 mm (6.7 in × 43.6 in)
Pilot System Variable displacement piston Variable displacement piston
Cylinders, Double Acting - Tilt, Bore and Stroke 152.4 mm × 953 mm (6 in × 37.5 in) 152.4 mm × 953 mm (6 in × 37.5 in)
Maximum Flow 65.8 gal/min 250 l/min
Total Steering Angle 86° 86°
Steering Cycle Times - Low Idle 5.7 s 5.7 s
Steering Cycle Times - High Idle 3.1 s 3.1 s
Relief Valve Setting - Steering 3495 psi 24100 kPa
Steering System - Pump Piston, variable displacement Piston, variable displacement
Steering System - Circuit Pilot, load sensing Pilot, load sensing
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. 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.
Machine Sound Level (ISO 6395) 112 dB(A) 112 dB(A)
Operator Sound Level (ISO 6396) 81 dB(A) 81 dB(A)
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.
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.
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. 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) 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. 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 (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. 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.
Machine Sound Level (ISO 6395) 109 dB(A) 109 dB(A)
Operator Sound Level (ISO 6396) 81 dB(A) 81 dB(A)
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. 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.
Air Conditioning The 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. The 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.

834K Scoops for Coal & Woodchips Standard Equipment

NOTE

  • Standard and optional equipment may vary. Consult your Cat dealer for details.

ELECTRICAL

  • 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

OPERATOR ENVIRONMENT

  • 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

POWER TRAIN

  • 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)

OTHER STANDARD EQUIPMENT

  • 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

TIRES, RIMS AND WHEELS

  • A tire must be selected from the mandatory attachments section – base machine price includes a tire allowance

ANTIFREEZE

  • Premixed 50 percent concentration of Extended Life Coolant with freeze protection to –34° C (–29° F)

834K Scoops for Coal & Woodchips Optional Equipment

NOTE

  • Standard and optional equipment may vary. Consult your Cat dealer for details.

POWER TRAIN

  • –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

OPERATOR ENVIRONMENT

  • 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)

MISCELLANEOUS ATTACHMENTS

  • Front and rear roading fenders
  • Fast fill fuel system (Shaw-Aero)
  • Cat Detect
  • Halogen and HID lights

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