A Leading Supplier

Johnson Matthey is a leading supplier of retrofit diesel emissions control systems for non-road machines.

World leading technology

Johnson Matthey's CRT® technology is the leading NRMM retrofit filter system.

20 years of retrofit experience

We have many application-specific designs and can provide detailed installation advice.

System certification

Johnson Matthey systems are certified for supply by BAFU (Switzerland), EST (UK) and VERT. Also accepted by TRGS544 for local schemes in Germany and Austria.

Case Studies

Visit our library to see case studies of typical retrofit installations.

Our Applications

Welcome to Johnson Matthey: European Non-Road Mobile Machinery Group

Johnson Matthey has over 25 years’ experience of engineering retrofit diesel particulate filter (DPF) systems for many makes of existing non-road vehicles and machines already in service.

Diesel engines are a valuable power source but their emissions are known to contribute to air pollution and can cause respiratory health problems. For existing machines these emissions are best dealt with at source through the use of retrofit exhaust aftertreatment.

Johnson Matthey offers retrofit filter systems to cover a variety of applications to fit Diesel engines from 10kW to more than 1,000kW.
Johnson Matthey's diesel emission control devices can reduce the mass of harmful particulates emitted by Diesel engines by more than 90%, and the number by over 99%.

Johnson Matthey’s European Non-Road Mobile Machinery (NRMM) Group focuses on the manufacture, sale and service of retrofit systems for a broad range of vehicles and machine types: Construction, Mining & TunnellingMaterials Handling, Agriculture, Recycling, Railway and Generators & Compressors.

The European Non-Road Mobile Machinery Group is part of Johnson Matthey’s Emission Control Technologies (ECT).

© Johnson Matthey 2012