The catalytic converter is coated with rare earth element and noble metals of PT, Pd, Rh. When the engine exhaust passing through the three-way catalytic converter the elements of CO would be oxidized into CO2, the HC is turned into H2O and CO2, while the NOX is deoxidized into nitrogen. The catalytic converter substrate is made of metal honeycomb with stainless steel crust and Fe-Cr-Al honeycomb body. It is a critical part of motorcycles and off-road engines to make the exhaust emission meet government standard. Along with the Europe III, IV emissions implementation, our factory has carried on the optimized design in the original formula foundation, developed a series of combustion initiation temperature to be lower, the transformed efficiency was higher.
| Shelll material |
Ferritic stainless steel SUS444, SUS441, SUS430 and austenitic stainless steel SUS304, SUS316.
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Core material
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Domestic FeCrAl (2073/216) and import FeCrAl (1.4725/1.4767).
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Dimension(mm)
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Diameter from 28mm to 550mm, length up to 300mm
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Cell density (CPSI)
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100, 200,250,300,400,500,600
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Foil thickness(mm)
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0.03,0.04, 0.05,0.06,0.08,0.10
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Light-off temperature
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T50(CO)≤230 T50(HC)≤260 T50(NOX)≤250
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| Shape | Round, oval, race track, rectangular |
| Engine compliance: | Petrol engines, diesel engines, and general engines |
Light off temperature |
CO≤210ºC HC≤230ºC NOX≤250ºC |
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Conversion efficiency
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CO≥85% HC≥80% CO≥85%
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Coating desquamate rate
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≤7%
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| Emission standard | Euro2, Euro3, Euro4, Euro5 |
| Active catalyst ingredients | Pt, Pd, Rh, and rare earth elements |
| Cell density | cpsi | Hole/m² | Tolerance Hole/m² |
| 100 | 15 | ±1 | |
| 200 | 31 | ±2 | |
| 300 | 46 | ±3 | |
| 400 | 62 | ±3 | |
| 600 | 93 | ±4 |
| Out diameter(mm) | 20-150 | ≤30 | ≤0.4 |
| 30-50 | ≤0.45 | ||
| >51 | ±1% | ||
| Height(mm) | 30-120 | 30-50 | ±0.5 |
| 20-80 | ±0.6 | ||
| 80-120 | ±0.7 | ||
| Distance from inner core to end face | 5 | ±0.5 | |
| Out diameter | Shell wall thickness | Tolerance | |
| 0-55 | 1.0 | +15% -10% | |
| 55-145 | 1.2 | ||
| >145 | 1.5 | ||
1.Excellent filter element
Composed of internal sound-absorbing materials to reduce sound intensity and noise.
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