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Optimized surface dressing

OB-Vario surface treatment machines

For the design of the schäfer-technic OB-Vario combined machines we focus on current construction site requirements and make use of state-of-the-art technology. The machines are therefore tailored to your practical working processes and set new standards when it comes to high quality surface dressing.

The OB-Vario offers excellent efficiency and can be used for a variety of applications. It provides high area coverage while meeting the strictest quality demands. All standard binding agent and high quality chipping types can be used.

The schäfer-technic surface dressing machines allow you to work on surfaces throughout the entire road network, e.g. on national, local and connecting routes, goods routes and within built-up areas.

The self-loading mechanism allows the chipping bunker to be loaded from a truck tipper directly on the construction site. As a result, the machine always remains at the place of use and maximises its daily output. The sensor-controlled automatic dosing applies the required quantities of binding agent and chippings evenly over the entire working width.

Jobs using schäfer-technic surface dressing machines conserve resources, reduce travel distances and save time. The major advantage of the machines is the significantly reduced proportion of loose chippings thanks to rear axle application. This minimises traffic interference.

Thanks to their ergonomic handling and control, the machines are easy to operate and provide maximum traffic safety. Different equipment can be selected and adapted depending on requirements so that the machine is an even closer match for your practical working processes.

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Showroom


OB Vario 43/14 S

  • Working width up to approx. 4,300 mm
  • Variable spreading and spraying
  • Daily coverage up to over 30,000 m²
  • Working speed up to 80 m/min
  • Binding agent tank 14,000 l
  • Tank construction as per ADR
  • Chipping container 16,000 l
  • Quick loading facility
  • Flowmeter
  • Camera monitoring of spraying and
    chipping spreading
  • Touch-Control:
    • Machine control
    • Automatic dosing
    • Construction site organisation with
      process data acquisition
    • Data transfer (USB, cloud etc.)
  • etc.

Showroom


OB Vario 43/12 S

  • Working width up to approx. 4,300 mm
  • Variable spreading and spraying
  • Daily output up to over 30,000 m²
  • Working speed up to 80 m/min
  • Binding agent tank 12,000 l
  • Chipping container 8,000 l
  • Quick loading facility
  • Flowmeter
  • Camera monitoring of spraying and
    chipping spreading
  • Variable binding agent lateral distribution
  • Touch-Control:
    • Machine control
    • Automatic dosing
    • Construction site organisation with
      process data acquisition
    • Repair track control: Patch program
    • Data transfer (USB, cloud etc.)
  • etc.

Showroom


OB-Vario 43/14 S TH

  • 3-axle trailer chassis
  • Working width up to approx. 4,300 mm
  • Variable spreading and spraying
  • Daily output up to over 30,000 m²
  • Working speed up to 80 m/min
  • Binding agent tank approx. 12,000 l
  • Thermal oil heating for tank and spray bar
  • Tank construction as per ADR
  • Spray temperature up to 200 °C
  • Chipping container 16,000 l
  • Quick loading facility
  • Flowmeter
  • High pressure cleaner with water tank
  • Touch-Control:
    • Machine control
    • Automatic dosing
    • Construction site organisation with
      process data acquisition
    • Repair track control: Patch program
    • Data transfer (USB, cloud etc.)
  • etc.

Showroom


OB-Vario 4300 HT

  • 2-axle tandem trailer
  • Working width up to approx. 4,300 mm
  • Variable spreading and spraying
  • Daily output up to over 30,000 m²
  • Working speed up to 80 m/min
  • Binding agent supply from tractor
  • Chipping container 11,000 l
  • Quick loading facility
  • Auxiliary heater for spray bar
  • Variable binding agent lateral distribution
  • Touch-Control:
    • Machine control
    • Automatic dosing
    • Repair track control: Patch program
  • etc.

Showroom


OB-Vario 43-06 A

  • Fixed installation on 4-axle trucks
  • Working width up to approx. 4,300 mm
  • Variable spreading and spraying
  • Daily output up to over 25,000 m²
  • Working speed up to 80 m/min
  • Binding agent tank approx. 6,000 l
  • Chipping container 7,000 l
  • Quick loading facility
  • Variable binding agent lateral distribution
  • Collision protection for spray bar and spreader
  • Touch-Control:
    • Machine control
    • Automatic dosing
    • Construction site organisation with
      process data acquisition
    • Repair track control: Patch program
  • etc.

Surface dressing machines in action

SURFACE DRESSING AND SEALING

Surface dressing involves applying a hot binding agent or bitumen emulsions, and then spreading coarse aggregate. Bond coat spraying can also be carried out with a bitumen sprayer and chippings can be added in a separate operation. Alternatively, a single combined machine can carry out both of these functions. 

As well as surface dressing machines, schäfer-technic supplies bitumen sprayers, chip spreaders and repair trains for these kinds of applications.

→ MORE ABOUT THE METHOD

→ SR bitumen sprayers | → ST chipping spreaders | → RZA repair trains

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