Diesel Particulate Filters
Stratus modular diesel particulate filter DPF systems help mining, construction, mobile equipment, and stationary diesel engine applications reduce particulate emissions while supporting practical maintenance requirements.
Stratus SMF Technology for Diesel Exhaust Treatment
For maintenance and reliability teams, the selection decision should account for engine load, available exhaust temperature, cleaning access, and the consequences of downtime. The right DPF helps control emissions without creating unnecessary maintenance complexity or restricting productive equipment use.
T.F. Hudgins offers Stratus diesel particulate filters built around SMF sintered metal filter technology. Designed for original equipment and retrofit applications, these systems support emission control by capturing soot particles and fine particulate matter in the exhaust stream while helping control backpressure, maintenance effort, and operating cost under demanding operating conditions.
Engineered Products
Diesel Particulate Filter Models and Configurations
Stratus DPF systems are modular, so the filter configuration can be matched to engine size, exhaust gas temperatures, duty cycle, and regeneration requirements.
Stratus Brochure (PDF, 3 MB)
Sizing Guidelines (PDF, 50 KB)
SMF Sintered Metal Filter
The SMF element is the core of the Stratus exhaust treatment system. Its sintered metal construction allows exhaust flow to pass through the filter pockets from the outside, helping minimize backpressure while providing filtration efficiency of more than 99% for soot and fine particulate matter.
SMF-AR
SMF-AR is designed for low- to medium-power applications with low or variable power consumption. It uses active regeneration with sensors, controls, and heating elements that generate high heat to burn off trapped particulate when the filter reaches a full soot load.
SMF-DOC
SMF-DOC combines an upstream diesel oxidation catalyst DOC with an SMF filter for continuous passive regeneration. This configuration is used to reduce particulate, hydrocarbon, and carbon monoxide emissions where exhaust temperatures and duty cycle support passive regeneration.
SMF-FBC
SMF-FBC supports larger diesel engines up to 800 hp and output ranges from 75 to 600 kW. Regeneration occurs continuously during operation through a fuel-borne catalyst when exhaust temperature is above 380 degrees C for at least 10% of operating time. The system includes the filter, software, electronics, and sensors.
THE CHALLENGE
Reducing Diesel Particulate Matter Without Creating Maintenance Burden
Diesel equipment is widely used because it is durable, powerful, and associated with low fuel consumption. The tradeoff is that combustion produces particulate matter, including small soot particles that can pass through lungs and into the bloodstream. For mines, construction fleets, and stationary engine applications, uncontrolled diesel exhaust can create health, environmental, and compliance concerns.
- Variable load profiles can make filter regeneration difficult to sustain.
- Excessive backpressure can affect equipment operation and maintenance planning.
- Low exhaust gas temperatures may limit passive regeneration performance.
- High oil consumption and ash loading can shorten cleaning intervals.
Why TF HUDGINS
Technical Product Guidance Backed by Reliability Experience
T.F. Hudgins helps industrial teams evaluate diesel particulate filters as part of a broader maintenance, reliability, and compliance strategy. The focus is not only on selecting a filter, but also on matching the system to the engine, exhaust conditions, regeneration requirements, and operating environment.
SMF technology with high ash-holding capacity and low maintenance requirements
Passive and active regeneration options for different duty cycles
Support for mining, construction, and industrial diesel applications
Stratus modular DPF systems for mobile and stationary applications
