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Sophistication: a collection of products.
Selective Catalytic Reductant
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Selective Catalytic Reduction (SCR) is a highly efficient emissions control technology designed to reduce nitrogen oxides (NOₓ) from diesel engine exhaust. As a core component of modern diesel aftertreatment systems, it plays a pivotal role in meeting strict global emission standards and mitigating air pollution.
The SCR system operates by injecting a urea-based reductant—commonly known as Diesel Exhaust Fluid (DEF) or AdBlue—into the exhaust stream. At an optimal temperature range of 200-400°C, the reductant vaporizes and reacts with NOₓ on the surface of a specialized catalyst (supported by cordierite or silicon carbide substrates). This selective chemical reaction converts harmful NOₓ into harmless nitrogen (N₂) and water (H₂O), with minimal impact on other exhaust components.
Widely adopted in diesel-powered trucks, buses, construction machinery, generators, marine vessels, and industrial engines, SCR systems typically integrate with DOC (Diesel Oxidation Catalyst) and DPF (Diesel Particulate Filter) for comprehensive pollutant control. Together, these devices ensure compliance with standards such as Euro 4/5/6, EPA, and China VI, achieving NOₓ conversion efficiencies of 90% or higher while enabling efficient engine operation.
Diesel Particulate Filter
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A Diesel Particulate Filter (DPF) is a key emissions control device engineered to capture and eliminate particulate matter (PM, soot) from diesel engine exhaust. As a core part of diesel aftertreatment systems, it plays a critical role in reducing air pollutants and meeting strict global emission standards.
The DPF features a porous filter substrate—commonly made of cordierite or silicon carbide (SiC)—housed in a sealed outer casing. It works by physically trapping soot particles as exhaust gases pass through the substrate’s tiny channels. To prevent clogging and restore filtration capacity, accumulated soot is removed via regeneration: passive regeneration uses natural exhaust heat, while active regeneration relies on engine adjustments or dedicated injectors to raise exhaust temperature.
Widely used in diesel-powered vehicles (trucks, buses, passenger cars), construction machinery, generators, and marine vessels, DPFs typically operate alongside DOC (Diesel Oxidation Catalyst) and SCR (Selective Catalytic Reduction) systems. Together, they achieve comprehensive emissions control, ensuring compliance with standards like Euro 5/6, EPA, and China VI while reducing harmful soot and fine particle emissions.
Diesel Oxidation Catalyst
PD6976472251106000009
A Diesel Oxidation Catalyst (DOC) is a critical emissions control device designed for diesel engines, focusing on reducing harmful pollutants in exhaust gases. It operates as a core component of diesel aftertreatment systems, leveraging catalytic reactions to convert toxic substances into environmentally friendly compounds.
The DOC consists of a catalyst-coated substrate (typically cordierite, silicon carbide, or metal) and an outer sealing casing. The catalyst—usually platinum (Pt), palladium (Pd), or a combination—triggers oxidation reactions at optimal temperatures (200-400°C), converting carbon monoxide (CO) to carbon dioxide (CO₂), unburned hydrocarbons (HC) to CO₂ and water (H₂O), and oxidizing some particulate matter (PM) precursors.
Widely used in diesel-powered vehicles (cars, trucks, buses), construction machinery, generators, and marine vessels, DOCs play a key role in meeting global emission standards such as Euro 4/5/6, EPA, and China VI. They often work in tandem with other aftertreatment devices like DPF (Diesel Particulate Filter) or SCR (Selective Catalytic Reduction) for comprehensive pollutant control, ensuring efficient and compliant operation of diesel engines.
cordierite substrate
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Cordierite substrates are ceramic carriers made from cordierite (2MgO·2Al₂O₃·5SiO₂), a material celebrated for its ultra-low thermal expansion coefficient, good thermal shock resistance, and cost-effectiveness. They stand out as reliable choices for temperature-fluctuation-prone applications.
With a thermal expansion coefficient as low as 1-2 ppm/°C (25-800°C), these substrates resist cracking even under rapid heating and cooling. They also offer moderate mechanical strength and chemical stability, suitable for both industrial and automotive scenarios.
Widely used as catalyst supports in automotive exhaust systems (three-way catalysts, diesel particulate filters), industrial catalytic reactors, and high-temperature gas filtration equipment, cordierite substrates can be customized into honeycomb structures, specific sizes, or porous formats to enhance surface area and reaction efficiency.
silicon carbide substrate
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Silicon Carbide (SiC) substrates are high-performance ceramic materials renowned for exceptional thermal conductivity, superior electrical insulation, and extreme environmental resilience. As a advanced functional carrier, they outperform traditional ceramic and metal substrates in demanding scenarios.
Available in single-crystal (4H-SiC, 6H-SiC) and sintered grades, SiC substrates boast thermal conductivity ranging from 120-400 W/(m·K), withstand temperatures up to 1200°C+, and exhibit strong corrosion resistance. These traits make them ideal for high-power, high-temperature, and high-voltage applications.
Key applications span power electronics (EV inverters, renewable energy converters), semiconductor devices (SiC MOSFETs/IGBTs), aerospace components, and industrial heating equipment. They can be customized via precision cutting, drilling, polishing, or metallization to meet specific project requirements, enabling more efficient and compact system designs.
metal substrate
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Metal substrates are base materials crafted from metals or metal alloys, valued for their excellent thermal conductivity, high mechanical strength, and strong processability. They serve as critical components for thermal management, structural support, and functional carrier applications across industries.
Common types include aluminum, copper, steel, titanium, and specialized alloys like aluminum-magnesium or copper-nickel. Each type caters to distinct needs—aluminum and copper excel at heat dissipation, steel offers robust structural performance, while titanium provides superior corrosion resistance.
Widely used in power electronics (such as insulated metal substrates/IMS), LED heatsinks, automotive components, aerospace structures, and printed circuit boards (PCBs), metal substrates thrive in vibration-prone, heavy-load, or high-heat environments. They can be customized via surface treatments (anodizing, plating, passivation), cutting, drilling, or grooving to meet specific project requirements.
flange
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A flange is a versatile disc-shaped mechanical component designed for connecting, securing, and sealing pipes, valves, pumps, or industrial equipment. It enables detachable joints—facilitating easy maintenance and disassembly—while ensuring leak-proof performance in piping systems.
Flanges come in various types (weld neck, slip-on, blind, threaded, etc.) and materials (carbon steel, stainless steel, alloy steel, plastic, etc.), tailored to different operating conditions. They adhere to global standards like ASME B16.5, EN 1092, and GB/T 9112, which define dimensions, pressure ratings (Class/PN), and compatibility requirements. Sealing is achieved via gaskets (rubber, graphite, PTFE, metal spiral wound) placed between mating flanges, with bolts tightened uniformly to create a secure seal.
Widely used across oil and gas, chemical processing, water treatment, power generation, HVAC, and marine engineering, flanges accommodate diverse pressure (-20°C to 800°C+) and temperature ranges. Their adaptability to high-pressure, corrosive, or general-purpose environments makes them a fundamental component in industrial piping systems worldwide.
vermiculite liner
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Vermiculite liners are pads made from vermiculite, a mineral known for its exceptional thermal insulation, fire resistance, and sound absorption properties. These liners feature high-temperature resistance (up to 1000°C+), low thermal conductivity, and light weight, making them ideal for multiple applications.
Commonly used in industrial kilns to reduce heat loss and protect equipment, as fireproof partitions in buildings to slow down fire spread, and as soundproofing layers in vehicles and machinery rooms, vermiculite liners offer reliable performance in harsh conditions. Their porous structure also aids in sound absorption, adding to their versatility. Whether for thermal insulation, fire protection, or soundproofing, vermiculite liners provide an efficient and durable solution.
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Innovative diesel generator emission control systems for a sustainable future.
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