Overview

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

Photos
Videos

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T855 Commander 3 Video

Vermeer Surface Mining

Vermeer Rock Lab | Vermeer Surface Mining

Features and Benefits

  • 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’(2.4 m) or folding 13’ (4 m) dirt conveyors.
  • Vermeer Vantage Track Extended Care Service Program offers an optional 3-year/3,000-hour or 5-year/5,000-hour heavy equipment warranty on the components of the closed loop hydrostatic system.
  • Vermeer dealers offer comprehensive service and genuine Vermeer replacement parts.


 

Specs
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' 10 m
Length with 40" (101.6 cm) End Idler and 8 ft (2.44 m) Boom 35.3' 10.8 m
Length with 40" (101.6 cm) End Idler and 10 ft (3.05 m) Boom 37.8' 11.5 m
Length with 40" (101.6 cm) End Idler and 12 ft (3.66 m) Boom 40.3' 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" 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" 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)