High-Efficiency Rotary Heat Exchangers for Commercial & Civil Building Ventilation, Full OEM Customization Available

CSTHEATEXCHANGER is a professional manufacturer of rotary air-to-air heat exchangers specially designed for building ventilation systems, supplying enthalpy wheels and sensible heat recovery rotors for central air handling units (AHU), ERV/HRV fresh air equipment across global construction projects. We provide complete OEM & ODM customization services for HVAC brands, engineering contractors and building system integrators.

Rotary heat exchanger (thermal wheel / enthalpy wheel) is the core energy recovery component of modern building ventilation. The aluminum honeycomb rotor rotates alternately between exhaust stale air and fresh supply air, recycling waste heat and moisture inside buildings to pre-treat outdoor air, drastically cutting heating & cooling power consumption while meeting fresh air ventilation standards ASHRAE 62.1, EU ErP and Eurovent norms.

Two mainstream types for construction ventilation:

Sensible Heat Wheel (Aluminum Standard Wheel)

Only recovers temperature, low cross-contamination, suitable for offices, shopping malls, schools, factory buildings. Recovery efficiency: 70%–88%.

Enthalpy Desiccant Wheel (Silica Gel / Molecular Sieve Coating)

Recovers both heat and humidity, realizes full enthalpy recovery, perfect for hotels, hospitals, residential complexes, humid coastal areas. Total efficiency up to 90%.

Our Custom & OEM Service for Building Ventilation Rotors

We support full private label and technical customization to match various building ventilation project demands:

Size Custom: Wheel diameter 500mm–3800mm, airflow 100–190,000 Nm³/h, matching small residential ERV and large commercial AHU

Material Custom: Bare aluminum, anti-corrosion epoxy aluminum, desiccant coated rotor for all-climate buildings

Structure Custom: Integrated casing wheel / segmented split rotor (easy transport for high-rise construction sites), low-leakage purge seal for cleanroom & medical buildings

Drive & Control OEM: Fixed/variable speed motor, Modbus intelligent controller compatible with building automatic control (BAC)

Brand OEM: Custom laser logo, customized technical manuals, neutral packaging for resale

Drawing Support: Free 2D/3D CAD drawings, project thermal calculation reports for construction tender

Core Advantages for Building Ventilation Projects

Energy-saving & low operation cost: Reduce HVAC energy load by 30%–50%, help buildings reach LEED, BREEAM green building certification

Stable performance in extreme climate: Built-in anti-freeze rotary design, works steadily from -20°C cold northern areas to tropical high-humidity regions

Low air leakage sealing system: Avoid cross mixing of supply & exhaust air, guarantee indoor air quality for public buildings

Long service life: Anti-rust aluminum matrix, 15+ years service cycle, easy water washing maintenance

ISO 9001, CE, Eurovent certified, fully compliant with global building ventilation energy efficiency regulations

Flexible MOQ, fast mass production delivery for large construction batches

Main Building Application Scenarios

Civil buildings: High-rise residential apartments, villas, community fresh air systems

Commercial buildings: Office towers, shopping malls, hotels, exhibition centers, airports, subway stations

Public facilities: Hospitals, schools, gymnasiums, libraries, clean laboratories

Industrial construction: Factory workshops, data center ventilation & cooling systems