One-Stop DOC/DPF/SCR Exhaust Aftertreatment Solutions

Custom Emission Control Systems for 50kW–10,000kW

Diesel Generators & Marine Vessels | Worldwide Compliance

✅ EPA Tier 4 / EU Stage V / IMO Tier III Certified
✅ Complete DOC + DPF + SCR Integrated Systems
✅ OEM Manufacturing & Global Technical Support

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CleanGen

Our company is a professional manufacturer specializing in exhaust emission aftertreatment systems for diesel generators and marine vessels. We deliver integrated DOC/DPF/SCR solutions tailored for power units ranging from 50kW to 10,000kW, ensuring full compliance with EPA Tier 4, EU Stage V, IMO Tier III, and global regional environmental regulations.

Serving generator manufacturers, marine equipment dealers, and engineering integrators worldwide, we provide reliable, cost-effective complete emission control systems, supported by OEM mass production, factory inspection, and overseas technical docking services.

White cylindrical object with a perforated, grid-patterned top.

Ceramic honeycomb catalyst with a cylindrical shape and a grid-like structure.

Metallic honeycomb catalyst block with a grid-like structure on a white background.

Diesel Particulate Filter

Diesel Oxident Catalyst

SCR catalyst

Metal supported catalyst

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pain points with solutions: emission standards, system integration, technical support, and power ma

Custom diesel generator exhaust systems and marine vessel exhaust treatment options with power range

Smoke-Free Tech

Driven by a mission to bridge industrial productivity and environmental responsibility, we prioritize R&D to stay ahead of evolving market needs. With certified quality, competitive pricing, and responsive service, we empower global clients to achieve greener energy practices.

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Co-build a clean and beautiful home with fresh air.

Four panels highlighting global compliance, power range, DOC/DPF/SCR systems, and worldwide support

🏭 OEM Custom Matching

Custom DOC/DPF/SCR systems designed specifically for your generator or marine equipment product lines. Full technical integration support from initial specification to final installation.

📦 Bulk Supply & Distribution

Stable mass production capacity for global distributors and dealers. Competitive pricing with consistent quality assurance. Flexible MOQ options to support your business growth.

🔧 Engineering Project Partnership

Work with EPC contractors and system integrators for emission retrofitting and new construction projects worldwide. Full project management and on-site technical support.

🎧 Technical Consulting & Support

On-site factory inspection, overseas technical docking, regulatory compliance guidance for all global markets. Expert support for EPA Tier 4, EU Stage V, IMO Tier III certification.

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