Exhaust Aftertreatment System
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Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Diesel Oxidation Catalyst (DOC) used in the Motor Vehicle Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.
A canonical Diesel Oxidation Catalyst (DOC) is characterized by the integration of Catalyst Substrate and Catalyst Washcoat. In industrial production environments, manufacturers listed on CNFX commonly emphasize Ceramic substrate (cordierite) construction to support stable, high-cycle operation across diverse manufacturing scenarios.
An exhaust aftertreatment device that oxidizes carbon monoxide (CO) and hydrocarbons (HC) in diesel exhaust gases to reduce emissions.
Technical details and manufacturing context for Diesel Oxidation Catalyst (DOC)
Commonly used trade names and technical identifiers for Diesel Oxidation Catalyst (DOC).
This component is essential for the following industrial systems and equipment:
| pressure: | Max 2 bar pressure drop across catalyst, system pressure up to 5 bar |
| flow rate: | 10-100,000 m³/h (based on engine size and application) |
| temperature: | 200-650°C (light-off: 200-250°C, max continuous: 650°C) |
| space velocity: | 20,000-100,000 h⁻¹ (typical for DOC applications) |
Verified manufacturers with capability to produce this product in China
✓ 94% Supplier Capability Match Found
Authentic performance reports from verified B2B procurement managers.
"Reliable performance in harsh Motor Vehicle Manufacturing environments. No issues with the Diesel Oxidation Catalyst (DOC) so far."
"Testing the Diesel Oxidation Catalyst (DOC) now; the technical reliability results are within 1% of the laboratory datasheet."
"Impressive build quality. Especially the technical reliability is very stable during long-term operation."
“Feedback is collected from verified sourcing managers during RFQ (Request for Quote) and factory evaluation processes on CNFX. These reports represent historical performance data and technical audit summaries from our B2B manufacturing network.”
The DOC oxidizes harmful carbon monoxide (CO) and unburned hydrocarbons (HC) in diesel exhaust into less harmful carbon dioxide (CO2) and water vapor, helping vehicles meet emission regulations.
Ceramic substrates (cordierite) offer excellent thermal shock resistance and lower cost, while metallic substrates (stainless steel) provide better mechanical durability, faster light-off, and compact designs for space-constrained applications.
Platinum and palladium act as active sites that facilitate oxidation reactions at lower temperatures, converting CO and HC efficiently while maintaining catalyst durability under high-temperature exhaust conditions.
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