With the ongoing focus on “Air Quality” and the tackling of the current climate crisis, we envisage further development of rules, regulations, and laws governing the levels of emissions we are allowed to emit into the atmosphere within our planet.

As London is the technical capital of the world it is at the forefront in setting standards for the rest of the UK, and potentially the rest of the world.

With this in mind our teams here at IMS have been working hard to develop a range of products to help reduce all legislated primary and secondary emissions and to develop the Next Generation of “Stage V” Emissions Reduction Technology that combines a DOC, DPF, SCR/ASC Catalysts with an Electronically Controlled AdBlue Dosing Package bespoke to each customers requirement.

The aim is to use our 30 years of experience within our sector to help London and other Cities reduce Air Pollution in their quest towards Net Zero so that businesses remain up-to date and compliant when installing our products to existing equipment, making their engines as clean as they possibly can be, raising their awareness and putting them ahead of any changes that are likely to take place in the near future and to promote an Ecological Revolution- or what we refer to as the ECOLUTION.


Non-Road Mobile Machinery (NRMM) such as excavators, cranes, piling rigs and diesel-powered generators are a significant contributor to London’s Air Pollution. With the introduction of the London NRMM LEZ (Low Emission Zone) in Central London, Canary Wharf and other Opportunity Areas across Greater London the Mayor will use the London Boroughs Planning Powers to control emissions for machinery with power rating between 37-560kW operating on construction sites within the LEZ.

Current emissions standards within the NRMM LEZ are Stage IV for construction machinery and Stage V for mobile generators (Stage IIIB for rest of London). These standards will be tightened to Stage V across the whole of London by January 2030 with only zero emission machinery being allowed to operate within London by 2040.

As well as HGVs, cars, and vans, HS2 also now require all NRMM machinery that will be needed to build the 345 miles of the UK’s new high-speed railway to meet stricter emissions standards in order to be able to operate on their sites.

Since January 2020 the HS2 Project has required all off-road machinery being used along the route’s entire length to meet EU Stage IV (and EU Stage V for Generators) as required by the London NRMM LEZ.

How we can help

We aim to be at the forefront within our market sector and to help our customers by developing products that meet their needs and help them be as “green” as possible. Since we were first incorporated in July 1991 where we specialised in just exhaust gas silencers and air intake attenuators for the power industry, we have continually improved and adapted to where we are now in a position to be able to provide combined solutions for emissions and acoustic reductions including (but not limited to) acoustic doors and canopies, heat recovery systems and silencers, to not just the industrial sector, but to the marine sector also.

With this foundation and mindset plus 30 years’ experience within the industry we have recently introduced our new Eco range and will strive to continue to be one of the UKs leading manufacturers and suppliers of emissions and acoustic products, helping to do our part in making the world a better and cleaner place in which to live.

Our product

The IMS-eco SCRT Device (21-10722) has been tested and accredited to meet “Stage V” and approved by the Energy Saving Trust. The system for mobile generators is supplied on a support frame that can be lowered into position on the roof of the Generator Enclosure as well as the DOC/DPF and SCR/ASC Catalysts with AdBlue Mixing Pipe.

The system comes with an AdBlue Tank, AdBlue Dosing System, and an Electronic Control System with OBD (On-Board Diagnostics) that is used to demonstrate compliance.

The SCRT System can be used for engines up to 16 Ltr/560kw and will be supplied as a fully installed and commissioned system from IMS.

Industrial AND Marine

Our new Eco range, although having been developed for the Industrial Market is also being used within the Marine industry too for both Inland Waterways and Sea-Going Vessels to meet Stage V and IMO Tier III emissions legislation.
We initially saw an interest in places such as Holland and Germany, the English Channel and Baltic Seas, but it is now becoming a requirement throughout the world in other countries across Europe and throughout the world such as North America (USA and Canada) and the Caribbean Seas.

We have recently installed our emissions technology on vessels operating on the River Thames in London and anticipate this being replicated in many other cities in the coming years.

For any further information take a look at our eco range products or get in touch (details at the bottom of every web page or give our web chat a try!)