Welcome to Stone Equipment Company - Providers of Light to Heavy Lift Trucks, TCM, Konecranes, Forklifts, Reach Stackers, Corona CA., Inland Empire

Municipal Fleets

Diesel engine exhaust emissions from these fleets are universally present in our communities. This is true for the workers and the population as a whole. Exposure to diesel exhaust may affect worker health and safety and performance. Proper implementation of controlled measures can help address this problem without compromising efficiency. Most importantly, guaranteed emission reductions are fast becoming an essential component of state/provincial and municipal funded contracts.

Fortunately, the harmful components of diesel exhaust; particulate matter (PM), carbon monoxide (CO), and hydrocarbons (HC), are easily reduced with current and readily available technologies which provide immediate emissions reductions and hence immediate health benefits to the local population.

Stone Equipment Co. offers three retrofit solutions designed with these fleets in mind; which are both industry leading verified solutions*. In addition, our application engineering approach to your emission control mandate is the difference between a one-size-fits-all solution and a comfortable custom-fit solution insuring quick and easy installations:

First is the diesel oxidation catalyst (DOC), available in two configurations:
The AZ Purifier – offering 20-40%* reduction dependent on the vehicle or the,
AZ Purimuffler (a combined AZ Purifier catalyst and silencer solution to enhance the packaging of the DOC solution within the vehicle).
The second is the Purifilter, a passively regenerating diesel particulate filter (DPF), which offers extraordinary and industry leading reductions of PM (90%*), HC and CO. ECS retrofit technology solutions offer superior performance at maximum cost effectiveness per retrofit dollar.
The third is the Combifilter, an actively regenerated DPF system that typically removes 90+ % of PM* while reducing NO2 emissions. The system is comprised of an integrated DPF and silencer assembly, and an off-board regeneration control panel or station.
Depending on the Combifilter™ you choose, simply plug your Combifilter™ equipped vehicle in when you’re on lunch or when the days work is done and your equipment will always be ready for a day’s uninterrupted work.

These are solutions you can also feel good about, knowing your emission control dollars are serving the environment, the general population as well as workers with the best verified solutions in the industry. Because particulate exposure increases exponentially with proximity to the source, reducing emissions with these retrofit technologies in the vicinity of people provides critical public health benefits and minimizes a person's exposure to these harmful emissions.

The products offered by Engine Control Systems go through a strict testing and validation regime. Stone Equipment holds more product certifications and verifications than our competitors. Letters of evaluation from agencies, testing results, and papers are readily available to our customers.

* Current EPA Verified Technologies PM reduction values dependent upon the specific engine and application using USLD fuel. Values are subject to change.

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