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Clean&Fast solution for urban trenching

Cleanfast US is a Marais versatile machine customized for american market to assure high productivity, high accuracy, limited disturbance to residents and quick restoration of the road.

It’s a performant trencher for a cost efficient, clean and fast deployment of fiber optic and electric networks in urban and motorway environments. It’s a very usable road vehicle designed in compliance with USA regulation, equipped with powerful Volvo engine (418 Hp) and with an axially driven wheel able to excavate up to 620 mm (26’’) deep. Cleanfast US is able to dig and simultaneously vacuum out and collect the excavated material, trenching in curves and sidewalks in different soil types (concrete, asphalt, rock).

Cleanfast US assures a clean and dust-free job site, a reduced amount of excavated material produced with adapted narrow tools and no material or dust thrown out during earth work; it provides complete filtration of rejected air.


  • Cleanliness of trenches and jobsite
  • Simultaneous, trench and suction of the excavated material
  • No material nor dust thrown out during earth works
  • Excavated material loaded by suction
  • Reduced noise emission
  • Preservation of the road foundations
  • Quick restoration of the road
  • Vehicle traffic not interrupted during the works
  • Easily usable road vehicle
  • Trench in curves
  • Trench on the sidewalk
  • Adapt to the urban strains
  • Designed for urban and motorway environments
  • Quick network deployment process
  • Reduction in building costs
  • Machine data remote monitoring
  • Fleet location management
  • Troubleshooting & operating conditions information

*information available according to machine configuration

  • As built data logger
  • Avoid stakeout resulting in time and cost reduction 
  • Project proof upon completion

Technical Features

Tesmec Marais Cleanfast US Trencher with Integrated Vacuum System
  • Suction system for a dust-free jobsite
  • Sound-proofing of the components allows limited disturbance to residents
  • Cutting tool mounted on double pivot, cutting radius 9 m, axially driven for flexible cut
  • Tilt of the tool which allows a vertical trench
  • Super-side offset of the tool outside the machine, 250 mm opposite side from driving seat
  • Multiple cutting attachments configurations

Technical Specifications

MAX HORSEPOWER 420 hp (309 kW)
ENGINE Volvo D13
WEIGHT 58,500 lbs | 26.500 kg
DIGGING WIDTH 3-1/4'' , 4'' , 4-3/4'' , 5-1/8''