Explore our engineering-grade components designed for maximum heat rejection, durability, and strict OEM compliance.
Established in 2007, Zhejiang Rock Auto Co., Ltd. has grown to become an internationally recognized leader, manufacturer, and supplier of high-efficiency cooling components. Our specialized facility utilizes advanced design modeling to craft high-grade radiator tubes, intercooler tubes, oil cooler tubes, along with complete structural configurations of radiators, intercoolers, and oil coolers.
With more than 15 years of industry experience, we have earned a distinguished status as a pioneer in the engineering and fabrication of aluminum-based cooling products. We work side-by-side with global partners to provide resilient, cost-effective, and customized options. Today, our engineering components serve high-stress operations in the automotive, marine, aerospace, industrial packaging, mold production, and sugar refining sectors.
Maximum heat transfer coefficient, optimal pressure drops, and elevated structural safety profiles.
We supply advanced microchannel extruded aluminum tubing, yielding a high thermal performance-to-weight ratio. These designs minimize boundaries in internal airflows, optimizing cooling recovery while maintaining system pressures.
For marine and high-vibration applications, our metric-precision knurled tubing offers unmatched mechanical interlocking during assembly, avoiding thermal fatigue failures common in harsh chemical environments.
Utilizing high-end Nocolok brazing furnaces, we create metallurgically bonded core assemblies. This process ensures high joint integrity, zero void zones, and optimal heat conduction paths across the radiator fins.
Operating in Zhejiang, China’s industrial manufacturing hub, grants Zhejiang Rock Auto Co., Ltd. strategic access to specialized metallurgical raw materials and high-precision tooling ecosystems. This local availability cuts lead times for raw materials down to days rather than weeks.
By integrating the entire supply chain—from high-purity aluminum extrusion to custom fin manufacturing and automated assembly—we eliminate external delays. Our proximity to the ports of Ningbo and Shanghai guarantees swift global delivery, offering a reliable flow of premium cooling systems directly to our international clients.
Engineered for compliance across major international markets, ensuring smooth integration and certification.
Our quality management systems meet strict IATF 16949 standards, ensuring consistency and continuous improvement across all production batches.
We use non-toxic, eco-friendly manufacturing methods that comply with European REACH and RoHS standards, easing regional import procedures.
We provide comprehensive engineering support, customized CAD modeling, and thermal performance validation tailored to your local climate conditions.
Innovations driving efficiency in next-generation cooling systems.
The rise of electric and hybrid powertrains requires sophisticated thermal management. Our microchannel tubes and high-efficiency plate coolers are designed to meet the strict temperature limits of traction batteries and power electronics.
Operating in marine and industrial settings requires robust protection against corrosion. We utilize specialized marine alloys and customized protective coatings to extend the service life of our intercooler tubes under harsh conditions.
With regulations moving away from high-GWP fluids, our products are engineered to support newer refrigerants like R1234yf and CO2, operating reliably under higher pressures.
Answers to common questions regarding engineering specifications, order placement, and supply chain logistics.
Examine our full lineup of cooling components, designed for light vehicles, heavy trucks, and marine propulsion systems.
Rock Auto