Since 2005 · 160+ Heat-Exchange Patents
CNDOI designs and manufactures plate, rotary, heat-pipe and combined heat-recovery equipment for HVAC, data centers, industrial drying and cleanrooms — engineered, OEM-ready, and built to your specification.
Up to 75% sensible efficiency for HVAC & data centers. Compact, serviceable aluminum and stainless-steel cores.
Explore →Energy-recovery wheels up to 85% for large AHU and industrial ventilation. Sensible & enthalpy media.
Explore →Passive, contamination-free recovery for kitchens, mines and hygienic environments. No moving parts.
Explore →Integrated HRV/ERV air-handling and fresh-air systems with filtration and BMS-ready controls.
Explore →A provincial High-Tech Enterprise and Specialized & Innovative SME with deep thermal-engineering IP.
Core geometry, materials and controls tailored to your airflow, temperature and space limits.
Private-label manufacturing for HVAC and AHU brands worldwide.
Quality system aligned with ISO 9001; CE marking available per destination market.
Aluminum, stainless steel 316L, titanium and hydrophilic foil for corrosive duty.
Manufacturing heat exchangers in Zibo, Shandong since 2005, serving 40+ countries.
Office towers, malls, schools and hospitals.
Fresh-air pre-conditioning and free cooling.
Pharma, herbal and agricultural drying heat recovery.
Pharmaceutical and lab supply-air recovery.
Hygienic heat recovery where airstreams must not mix.
Residential and commercial ERV/HRV ventilation.
As commercial buildings strive to meet increasingly stringent energy efficiency regulations and indoor air quality standards, heat exchanger...
Read →Drying is one of the most energy-intensive processes in industries such as food processing, agriculture, textiles, paper, wood,...
Read →Introduction In today's digital economy, data centers and electrical infrastructure face unprecedented thermal challenges. With the rapid expansion...
Read →Send us your airflow, temperature and space requirements — we return a sized solution within 2 business days.
Request a Quote →Or email: kuns913@gmail.com | WhatsApp: +86 157 5335 5505