Compare up to four Vermeer models side-by side.

To help determine which Vermeer machines are best for your operation, select up to four models below to see a side by side comparison.

T855III Trencher
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 20" (50.8 cm) End Idler and 2 ft (0.61 m) Boom Not applicable
Length with 20" (50.8 cm) End Idler and 4 ft (1.22 m) Boom Not applicable
Length with 20" (50.8 cm) End Idler and 5 ft (1.52 m) Boom Not applicable
Length with 20" (50.8 cm) End Idler and 6 ft (1.83 m) Boom Not applicable
Length with 20" (50.8 cm) End Idler and 8 ft (2.44 m) Boom Not applicable
Length with 20" (50.8 cm) End Idler and 10 ft (3.05 m) Boom Not applicable
Length with 30" (76.2 cm) End Idler and 4 ft (1.22 m) Boom Not applicable
Length with 30" (76.2 cm) End Idler and 5 ft (1.52 m) Boom Not applicable
Length with 30" (76.2 cm) End Idler and 6 ft (1.83 m) Boom Not applicable
Length with 40" (101.6 cm) End Idler and 4 ft (1.22 m) Boom Not applicable
Length with 40" (101.6 cm) End Idler and 5 ft (1.52 m) Boom Not applicable
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)
Length with 40" (101.6 cm) End Idler and 14 ft (4.27 m) Boom (with Restraint Bar) Not applicable
Length with 50" (127 cm) End Idler and 8 ft (2.44 m) Boom Not applicable
Length with 50" (127 cm) End Idler and 10 ft (3.05 m) Boom Not applicable
Length with 50" (127 cm) End Idler and 12 ft (3.66 m) Boom Not applicable
Length with 50" (127 cm) End Idler and 14 ft (4.27 m) Boom (with Restraint Bar) Not applicable
Length with 50" (127 cm) End Idler and 16 ft (4.88 m) Boom (with Restraint Bar) Not applicable
Length with 50" (127 cm) End Idler and 18 ft (5.49 m) Boom (with Restraint Bar) Not applicable
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)
T855III Trencher
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
Horsepower at Maximum RPM (Gross) Not applicable
T855III Trencher
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
Maximum Horsepower at Maximum RPM (Gross) Not applicable
T855III Trencher
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
T855III Trencher
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)
T855III Trencher
Trencher Yes
Terrain Leveler Yes
Rockwheel Yes
Bucket Wheel No
T855III Trencher
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
Roll Over Module (ROM) Yes
ROPS Not applicable
T855III Trencher
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)