A tough machine, built to last.

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The Vermeer T855 Commander® 3 hydrostatic trencher is your rugged trench-digging tool. Designed specifically for 6-ft to 12-ft (1.8-m to 3.7-m) rock trenching jobs, the T855III is a great choice for utility, water and sewer installation.

A tough machine, built to last.

The Vermeer T855 Commander® 3 hydrostatic trencher is your rugged trench-digging tool. Designed specifically for 6-ft to 12-ft (1.8-m to 3.7-m) rock trenching jobs, the T855III is a great choice for utility, water and sewer installation.

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Features & Benefits

Rotary power trencher drive motor

A rotary power trencher drive motor and splined headshaft produce low speed and high torque which provide superior ground penetration and low chain wear for better production results.

Low-speed, high-torque motor

Operate the rock trencher with less wear due to its low-speed, high-torque splined headshaft motor. Put the spoils where you want them with the optional non-folding 8-ft (2.4-m) or folding 13-ft (4-m) dirt conveyors.

Optional warranty

Vermeer Vantage Track Extended Care Service Program offers an optional 3-year/3000-hour or 5-year/5000-hour heavy equipment warranty on the components of the closed-loop hydrostatic system.

Specifications

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  • Transport Dimensions

    • Approach Angle 20 deg
    • Height Range 131 " - 143 " (332.7 cm - 363.2 cm) (143 "/363.2 cm represents the height with Rockwheel attachment)
    • Length with 40" (101.6 cm) End Idler and 6 ft (1.83 m) Boom 32.8 ft 10 m
    • Length with 40" (101.6 cm) End Idler and 8 ft (2.44 m) Boom 35.3 ft 10.8 m
    • Length with 40" (101.6 cm) End Idler and 10 ft (3.05 m) Boom 37.8 ft 11.5 m
    • Length with 40" (101.6 cm) End Idler and 12 ft (3.66 m) Boom 40.3 ft 12.3 m
    • Weight Range 65,500 lbs to 94,000 lbs (29,483 kg - 42,637 kg)
    • Width Ranges 101 " - 104 " (256.5 cm - 264.2 cm)
  • Engine Option One

    • Make and Model Caterpillar C9 ACERT Tier 3
    • Gross Horsepower 350 hp 261 kw
    • Rated Engine RPM 2200
    • Number of Cylinders 6
    • Fuel Tank Capacity 172 gal 651.1 L
    • Operating Range 9.4 hours
    • Fuel Consumption at Full Load 18.3 gph 69.3 lph
    • Maximum Engine Operating Angle (Operating angles do not indicate safe machine operating angles) 40 deg
    • Air Cleaner Dry-type exhaust aspirated
    • Aspiration Turbocharged and air-to-air aftercooled
    • Cooling Medium Liquid
    • Electrical System 24 Volt DC
    • Oil Filter Full flow
  • Engine Option Two

    • Make and Model Caterpillar C9 ACERT Tier 4 Final
    • Gross Horsepower 350 hp 261 kw
    • Rated Engine RPM 2200
    • Number of Cylinders 6
    • Fuel Tank Capacity 172 gal 651.1 L
    • Operating Range 9.4 hours
    • Fuel Consumption at Full Load 18.3 gph 69.3 lph
    • Maximum Engine Operating Angle (Operating angles do not indicate safe machine operating angles) 40 deg
    • Air Cleaner Dry-type with precleaner
    • Aspiration Turbocharged and air-to-air aftercooled
    • Cooling Medium Liquid
    • Electrical System 24 Volt DC
    • Oil Filter Full flow
  • Tracks

    • Auto Self Level Yes
    • Ground Pressure Minimum 11 psi 75.8 kPa
    • Ground Pressure Maximum 16.4 psi 113.1 kPa
    • Tilt Track Available Yes
    • Tilt Track Max Angle +/- 9 degrees or +/- 12 inches
    • Track Drive Type tDual path hydrosatic with planetary transmission
    • Track Length 147 in 373.4 cm
    • Track Pad Type Single, double, or triple grouser
    • Track Pad Width Ranges 20 " or 24 " (50.8 or 61 cm)
    • Track Size D6
    • Maximum Ground Speed - Low 106.3 ft/min 32.4 m/min
    • Maximum Ground Speed - High 213 ft/min 64.9 m/min
    • Parking and Emergency Brake Spring applied, hydraulic release, wet disc brake
    • Service Brakes Hydrostatic
  • Conveyor

    • Belt Width 30 in 76.2 cm
    • Conveyor Belt Speed Range 0 - 917 fpm (0-279.5 mpm)
    • Conveyor Belt Style Cleat or finger type
    • Conveyor Length 96 " or 156 " (243.8 cm or 396.2 cm)
    • Conveyor Shift Available Yes
    • Conveyor Shift Distance Range 1.5 " and 61.5 " (3.8 cm and 156.2 cm)
    • Conveyor Style Curved
    • Discharge Direction Right or left
    • Discharge Height Range 72.5 " (184.2 cm)
  • Attachments

    • Trencher Yes
    • Terrain Leveler Yes
    • Rockwheel Yes
    • Bucket Wheel No
  • Cab

    • Cab Yes
    • Control System TEC Plus
    • Air Conditioner/Heater Yes
    • Air Suspension Seat No
    • AM/FM Stereo with Weather Band Yes
    • Elevating Yes
    • Pressurized/Filtered Air Yes
    • Rollover Protective Structure (ROPM) Yes
  • Hydraulic System

    • Oil Tank Capacity 145 gal 548.9 L
    • Oil Type Vermeer HyPower 68 or Vermeer HyPower 100
    • Pressure Setting 2500 psi 172.4 bar
    • Pump Flow at Maximum RPM 30.2 gpm 114.5 L/min
    • Pump Type Pressure and flow compensated (load sensing)

Attachments

Trencher

Trencher

See Specs
Rockwheel

Rockwheel

See Specs

See it in action

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From helping you select the right equipment, to training operators, to providing the parts and service you need on a jobsite or in the field, Vermeer dealers will give you the localized support you're looking for.

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Vermeer Corporation reserves the right to make changes in engineering, design, and specifications; add improvements; or discontinue manufacturing at any time without notice or obligation. Equipment shown is for illustrative purposes only and may display optional or global-region specific features, accessories or components. Please contact your local Vermeer dealer for more information on machine specifications. Vermeer, the Vermeer logo, Equipped to Do More and Navigator are trademarks of Vermeer Manufacturing Company in the U.S. and/or other countries Copyright © 2015 Vermeer Corporation. All Rights Reserved.