As the global automotive industry pivots toward stricter environmental standards—such as Euro 6d, China VI, and US EPA Tier 3—the Oxygen Sensor (Lambda Sensor) has evolved from a simple monitoring tool into a sophisticated electronic component essential for real-time engine calibration. Oxygen sensors are the "eyes" of the Engine Control Unit (ECU), providing the feedback necessary to maintain the stoichiometric ratio (14.7:1 for gasoline engines), ensuring maximum fuel efficiency and minimum harmful emissions.
We specialize in both planar and conical zirconia sensor elements. Planar sensors offer faster "light-off" times, reaching operational temperature within seconds, which is crucial for reducing cold-start emissions—the period when vehicles produce the most pollutants.
Our OEM facility produces advanced 5-wire Wideband Air-Fuel Ratio (AFR) sensors capable of measuring exact ratios across a broad spectrum. Unlike narrowband sensors that only signal "rich" or "lean," our wideband technology allows for precise fuel mapping in high-performance and lean-burn engines.
To combat the harsh environment of exhaust manifolds—where temperatures exceed 800°C—our sensors utilize high-purity platinum electrodes and specialized ceramic filters to prevent silicon poisoning and carbon fouling, extending service life significantly beyond aftermarket standards.
Guangzhou Mayumi Auto Co., Ltd. is a professional manufacturer specializing in automotive parts and vehicle component solutions for global OEM, aftermarket, and commercial vehicle markets. Established in 2011, the company is located in Guangzhou, Guangdong Province, one of China's major automotive manufacturing centers. Operating from a modern production facility covering 25,000 square meters and supported by a workforce of more than 280 employees, Mayumi Auto has developed comprehensive capabilities in product development, precision manufacturing, quality control, and international supply chain management.
The company focuses on the production of suspension components, brake system parts, steering system components, engine-related parts, chassis assemblies, drivetrain components, and other automotive solutions designed for passenger vehicles, commercial vehicles, and specialty transportation applications.
Mayumi Auto provides flexible OEM and ODM manufacturing services, supporting customers with customized product development, private-label production, technical design optimization, and application-specific automotive solutions. Our engineering teams utilize CAD/CAM and thermal simulation to ensure sensor housing designs withstand extreme vibration and thermal shock.
Whether you need a small batch for niche commercial vehicles or mass production for passenger cars, our 25,000㎡ facility is equipped with automated assembly lines that ensure every sensor meets the same high-precision tolerance. Our engineering and production teams work closely with global partners to deliver efficient and scalable manufacturing support.
Quality assurance is integrated throughout the manufacturing process, from raw material inspection and precision machining to assembly verification and final performance testing. We follow stringent quality management procedures to ensure products meet international industry requirements, including ISO 9001 and TS16949 standards.
Located in Guangzhou, Mayumi Auto leverages one of the world's most mature automotive ecosystems. This proximity allows for "Just-In-Time" (JIT) manufacturing and rapid sourcing of high-grade raw materials. Our localized support ensures that we can mitigate global supply chain disruptions through robust inventory management and strategic logistics partnerships.
As the world moves toward hybridization and carbon neutrality, Mayumi Auto is investing in the next generation of sensing technology:
Optimized for stop-and-go traffic where low-temperature operation is frequent. Our sensors ensure catalyst efficiency is maintained even in heavy urban smog.
Engineered for long-haul trucks requiring 500,000+ mile durability. Resistance to high-sulfur fuel and vibration is a key design priority.
Corrosion-resistant housings for marine applications and continuous-run stationary generators where reliability is non-negotiable.
OEM sensors are designed specifically for the vehicle's ECU parameters, including specific heater resistance and connector types. Universal sensors often require wire splicing, which can introduce electrical resistance and lead to inaccurate readings.
We perform 100% end-of-line testing. Each sensor undergoes a thermal cycle test and a response-time test in a simulated exhaust environment before being packaged and shipped.
Yes, our ODM services include custom laser etching of part numbers/logos, specialized packaging design, and localized documentation to support your brand's market entry.
The primary causes are lead poisoning (from leaded fuels), silicon poisoning (from certain gasket sealants), and carbon soot buildup. Our sensors use a reinforced ceramic element to resist these contaminants.
Today, Guangzhou Mayumi Auto Co., Ltd. exports its products to North America, Europe, South America, the Middle East, Southeast Asia, and other international markets. By combining manufacturing expertise, engineering innovation, and customer-focused service, the company continues to provide dependable automotive component solutions.
Mayumi Auto
