T858III Trencher

Offset Track Trencher with Optional Features

Trench up against guardrails, buildings, walls and other obstacles with the T858 offset track trencher. Powered by a 350 hp/261 kW Caterpillar C9 Tier 3 engine, it’s loaded with features that help improve efficiency on most jobsites.

Features and benefits

  • Remove spoils more efficiently using the well-designed conveyor.
  • Trench more efficiently with less chain wear due to its low-speed, high-torque, splined headshaft motor and variable chain speed.
  • Improve job monitoring between the Murphy PowerView system and the exclusive Vermeer TEC 2000® Electronic Control System.
  • Enhance visibility and productivity with an enclosed cab that elevates the operator 3’/.9 m.
  • Increase operator safety thanks to the industry’s first Rollover Protective Structure (ROPS).
  • Vermeer Vantage Track Extended Care Service Program offers an optional 3-year/3,000-hour or 5-year/5,000-hour warranty on the components of the closed loop hydrostatic systems.
  • See your Vermeer dealer for comprehensive service and genuine Vermeer replacement parts.
     
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 © 2015 Vermeer Corporation. All Rights Reserved.
Approach Angle 17 deg
Height Range 132" (335.3 cm)
Length with 40" (101.6 cm) End Idler and 6 ft (1.83 m) Boom 39.6 ft 12.1 m
Length with 40" (101.6 cm) End Idler and 8 ft (2.44 m) Boom 41.8 ft 12.7 m
Weight Range 70,000 lb - 98,000 lb (31,751.5 kg - 44,452.1 kg)
Width Ranges 100" - 104" (254 cm - 264.2 cm)
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 280 gal 1059.9 L
Operating Range 15.3
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
Auto Self Level Yes
Ground Pressure Minimum 11.8 psi 81.4 kPa
Ground Pressure Maximum 15.7 psi 108.2 kPa
Tilt Track Available Yes
Tilt Track Max Angle 9 degrees or 12 degrees
Track Drive Type Dual path hydrostatic with planetary transmission
Track Length 147.2 in 373.9 cm
Track Pad Type Single, double or triple grouser
Track Pad Width Ranges 20"or 24" (50.8 cm 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 relase, wet disc brake
Service Brakes Hydrostatic
Belt Width 24 in 61 cm
Conveyor Belt Speed Range 0-1122 fpm (0-342 m/min)
Conveyor Belt Style Cleat or finger type
Conveyor Length 86" (21.8 cm)
Conveyor Shift Available Yes
Conveyor Shift Distance Range 14" (35.6 cm)
Conveyor Style Flat
Discharge Direction Right or left
Discharge Height Range 72" (182.9 cm)
Trencher Yes
Terrain Leveler No
Rockwheel No
Bucket Wheel No
Cab Yes
Control System TEC Plus
Air Conditioner/Heater Yes
Air Suspension Seat No
AM/FM Stereo with Weather Band Optional
Elevating Yes
Pressurized/Filtered Air Yes
Rollover Protective Structure (ROPM) Yes
Oil Tank Capacity 225 gal 851.7 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 114.3 L/min
Pump Type pressure-and-flow-compensated (load-sensing)
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 © 2015 Vermeer Corporation. All Rights Reserved.

Cut clean trenches.

Boom Depth Options 6 ' or 8 ' (1.8 m or 2.4 m)
Sectionalized Boom Optional
Boom Top Rollers Optional
Minimum Chain Speed 361 ft/min 110 m/min
Maximum Chain Speed 529 ft/min 161.2 m/min
Cutting Width 14 ", 16 ", 18 ", 24 ", 26 ", or 30 " (35.6 cm, 40.6 cm, 45.7 cm, 61 cm, 66 cm, or 76.2 cm)
Digging Chain Size 4502, 5501, or 4501
Idler Diameter 40 " (101.6 cm)
Offset Range - Left of Center 32.5 " (82.5 cm)
Offset Range - Right of Center 32.5 " (82.5 cm)
Trencher Drive Type Hydrostatic, two pumps and one motor
Maximum Digging Depth 96 in 243.8 cm
Maximum Cutting Width 30 in 76.2 cm

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