Wheel Dozers

834K Scoops for Coal & Woodchips

Overview

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.

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    • Sound Performance - Tier 2 Equivalent/Stage II: Standard
      Machine Sound Level (ISO 6395) 112 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.
      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) 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)
    • Sound Performance - Tier 2 Equivalent/Stage II: Suppression
      Machine Sound Level (ISO 6395) 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.
      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) 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)
    • Air Conditioning System
      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.
    • Brakes
      Brakes ISO 3450:2011
    • Weights
      Operating Weight 51290 kg
    • Axles
      Front Fixed
      Oscillation Angle ±13°
      Rear Trunnion
    • Service Refill Capacities
      Cooling System 120 l
      Crankcase 60 l
      Diesel Exhaust Fluid Tank* 33 l
      Differential - Final Drives - Front 186 l
      Differential - Final Drives - Rear 186 l
      Fuel Tank 793 l
      Hydraulic System - Tank Only 140 l
      Hydraulic System Factory Fill 240 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.
      Note (2) *Only applicable to Tier 4 Final/Stage IV equipped machines.
      Transmission 120 l
    • Engine
      Bore 145 mm
      Displacement 18.1 l
      Emissions U.S. EPA Tier 4 Final/EU Stage IV, Tier 3 Equivalent, or Tier 2 Equivalent
      Engine Model Cat® C18 ACERT™
      Gross - SAE J1349 419 kW
      Net - SAE J1349 370 kW
      Net Power 370 kW
      Peak Power Speed 1,500 rpm
      Peak Torque - 1,300 rpm 2836 N·m
      Rated Speed 1,900 rpm
      Stroke 183 mm
      Torque Rise 52%
    • Dimensions (Approximate)
      Centerline of Front Axle to Hitch 2275 mm
      Centerline of Rear Axle to Edge of Bumper 3187 mm
      Dump Angle at Full Lift Height 64 deg
      Ground Clearance 531 mm
      Ground to Center of Front Axle 978 mm
      Height - Edge of Dumped Scoop 1520 mm
      Height - Edge of Retracted Scoop 2250 mm
      Height - Top of Air Cleaner 3895 mm
      Height - Top of Cab 4184 mm
      Height - Top of Exhaust Stack 4498 mm
      Height - Top of Hood 3334 mm
      Length - Front of Tire 8715 mm
      Length - With Chip Scoop on Ground 11974 mm
      Length - With Coal Scoop on Ground 11971 mm
      Wheel Base 4550 mm
    • Operating Specifications
      Chip Scoop Operating Weight 51290 kg
      Coal Scoop Operating Weight 51103 kg
    • Sound Performance - Tier 4 Final/Stage IV: Suppression
      Machine Sound Level (ISO 6395) 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.
      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) 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) 72 dB(A)
    • Sound Performance - Tier 4 Final/Stage IV - Standard
      Machine Sound Level (ISO 6395) 111 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.
      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) 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)
    • Transmission
      Direct Drive - Forward 1 Lock-up disabled
      Direct Drive - Forward 2 12.4 km/h
      Direct Drive - Forward 3 22.1 km/h
      Direct Drive - Forward 4 38.5 km/h
      Direct Drive - Reverse 1 7.2 km/h
      Direct Drive - Reverse 2 13 km/h
      Direct Drive - Reverse 3 23 km/h
      Forward - 1 6.8 km/h
      Forward - 2 11.6 km/h
      Forward - 3 20.3 km/h
      Forward - 4 35.4 km/h
      Note Travel speeds based on 35/65-R33 tire.
      Reverse - 1 6.8 km/h
      Reverse - 2 12.2 km/h
      Reverse - 3 21.4 km/h
      Transmission Type Cat planetary power shift
    • Scoops
      Chip Scoop Carry Capacity 26.8 m³
      Chip Scoop Doze Capacity 53.5 m³
      Coal Scoop Carry Capacity 22.9 m³
      Coal Scoop Doze Capacity 45.9 m³
      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.
      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.
    • Hydraulic System - Steering
      Maximum Flow 250 l/min
      Relief Valve Setting - Steering 24100 kPa
      Steering Cycle Times - High Idle 3.1 s
      Steering Cycle Times - Low Idle 5.7 s
      Steering System - Circuit Pilot, load sensing
      Steering System - Pump Piston, variable displacement
      Total Steering Angle 86°
    • Hydraulic System - Lift/Dump/Tilt
      Cylinders, Double Acting - Left and Right Dump, Bore and Stroke 127 mm × 838 mm (5.0 in × 33.0 in)
      Cylinders, Double Acting - Lift, Bore and Stroke 170.0 mm × 1107 mm (6.7 in × 43.6 in)
      Cylinders, Double Acting - Tilt, Bore and Stroke 152.4 mm × 953 mm (6.0 in × 37.5 in)
      Lift/Tilt System Variable displacement piston
      Lift/Tilt System - Circuit Pilot operated LS valve with EH
      Maximum Flow at 1,900 rpm 582 l/min
      Pilot Maximum Flow 52 l/min
      Pilot Relief Valve Setting 4000 kPa
      Pilot System Variable displacement piston
      Relief Valve Setting - Lift/Tilt 29000 kPa

    Product Downloads

    834K Scoops Product Brochure

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