Focus on 
Purification Treatment
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 Exhaust Treatment 
System Parts
Catalytic Converter · Veefit Clamp
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Catalytic Converter · Veefit Clap

Customized Products

Denitrification Of Industrial Waste Gas

Those products are used in generator set, factory waste gas, backup power supply, etc., which aim to remove the nitrogen oxides.

Emission Systems (DPF) For Commercial Vehicles

This DPF(Diesel Particulate Filter) was used for DAF truck.

Diesel Aftertreatment For Mining Systems

With close to 15 years of experience in canning & housing, Hoonpai supports OEMs with robust and flexible canning to meet a variety of packaging and space requirements. This catalytic converter was used in the area of mining systems, customized product.

Emission Systems for DOC In Off-Road

This DOC Catalytic Converter system used in CAT D18 dozer.

Diesel Particulate Filter(DPF) & DOC

DPF or Diesel Particulate Filter is a honeycomb configured, ceramic filter installed inline in the exhaust stream and are used to reduce/eliminate the visible particulate matter (PM) or soot, from the exhaust of diesel engines.
A DOC (Diesel Oxidation Catalyst) is similar in size/shape/location to the DPF and it reduces the N20 (Nitrous Oxide) in the exhaust, as well as an EGR (Exhaust Gas Recirculation) loop which pulls raw, untreated, exhaust directly from the exhaust manifold and plumbs it back into the intake of the engine.

Digital Showroom

If you want to learn more about our manufacturing capabilities, you can click on the avatar in the scene, or accept my invitation!


Road Vehicles

Supply For OEM Truck Manufacturers
• National IV and National V catalysts, the main products are V-SCR, ASC
• National VI catalysts, including DOC, Cu-SCR/Fe-SCR, CDPF, ASC

Off Road Vehicles

Off-road Market
• Off-road vehicles are equipped with exhaust gas purification devices. The main products are DOC and CDPF, and some vehicles use V-SCR and Cu-SCR
• Construction Machinery
• Agricultural Machinery

Industrial Denitration

• Industrial denitrification equipment, the main products are V-SCR, Cu-SCR
• Waste incineration plant
• Stationary sources, power plants
• Boiler denitrification

Production Exhibition

05/ 19/ 2024
Purification Treatment For Industrial Equipments& Generator set

From April 24 to 27, we attended the INTERMAT in Paris.It was a great pleasure to meet you at the exhibition. 

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05/ 21/ 2024
Warmly Welcome Indian Client Visited And Discussed Cooperation !

Last week, we were pleased to meet the Clients of India. During the visit, our team introduced the production of advanced exhaust catalytic converter technologies at our modern facility. In addition to this, they also visited the catalyst plant, and witness the coating process of the catalyst.

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05/ 20/ 2024
We Visited The Clients in Spain

We visited our client in Spain last week and received a warm reception. During the two-hour conversation, we delved into the details of our cooperation and gained a clearer understanding of each other's needs.

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