Combined active SCR/DPF modular system for Tier 4f emissions targets and integrated sound attenuation reduction up to 25 dBA, designed for independent no load and low load DPF regeneration on diesel engines ranging from 1-4 MW.
The MIRATECH AT‑4 Active System is an advanced emissions control solution for mission critical diesel engines. It combines MIRATECH SCR and DOC technology with active self‑regenerating DPF to reduce NOx, CO, VOC, and PM to levels beyond Tier 4F. The system performs at idle and variable loads, comes online within ten minutes, and supports engines from 1 MW to 4 MW in demanding environments such as hospitals, data centers, financial institutions, and drilling rigs.
The AT‑4 is compact, modular, and easy to install in engine rooms or containerized layouts. It includes flexible mounting options, integrated silencing up to 25 dB(A), and pressure loss that aligns with engine manufacturer requirements. The system is also retrofit ready and provides a complete solution for bringing existing engines into modern emissions compliance.
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