Two VOSS men working under a truck

SCR: Efficient solutions for the reduction of nitrogen oxides

VOSS Automotive is the global partner for unheated and heated SCR line modules for light and heavy diesel engines.

Trucks and buses, cars, agricultural and construction machinery – VOSS is the development partner for ready-to-install modules including line, connection and sensor technology for all SCR applications.

From an extensive product range, VOSS develops tailor-made solutions for unheated, electrically heated and coolant-heated systems.

VOSS SCR solutions achieve high heat and frost resistance as well as fast, energy-efficient and safe thawing. We provide support for thawing performance calculations and system design.

Further VOSS core competencies are: adaptation to the tightest of installation spaces, customer-specific solutions and individual support.

Competences in detail:

  • Project-specific tuning of the heating concept
  • Individual systems for heating the DEF lines, and for the cooling of the dosing module with coolant from the existing engine cooling circuit
  • Combination of electrical heating and heating with cooling water
  • Lines and connectors are electrically heated
  • Application of hoses and tubing: plain and corrugated tubes; formed or flexible
  • Extensive testing program as part of development and series production

Technical solutions:

  • Balanced combination of techniques for a safe and efficient heating performance
    • Safe and simple encapsulation of the electric connections
    • Electrically heated connectors are air insulated
    • Reliable sealing prevents heat loss and contamination
    • Customized heating performance for specific applications
  • High temperature configuration up to 160°C (long term) and 180°C (short term)
  • Laser welding transition between PA tube and heated connector
  • 12 and 24 volt system applications, suitable for PWM control
  • Designed for outstanding performance in extreme environments, especially off-road
Coolant-heated SCR module

Coolant-heated module with QC systems 241N and 246NX

Coolant-heated SCR module

Coolant-heated module with QC systems 241 and 246NX

Electrically heated lines

Electrically heated lines with QC system 241NSL

Electrically heated high temperature line

Electrically heated high temperature line with QC system 241

Electrically heated line with quality sensor

Electrically heated line with quality sensor

Separation point for electrically heated lines

Separation point for electrically heated lines