With 18 years of deep expertise in industrial chiller units, GRAT guide vane motors have consistently partnered with leading manufacturers in the industry. Renowned for exceptional reliability, our products have earned global customer trust and become the core power component ensuring stable cooling performance.
Having undergone over a decade of rigorous market validation, more than 200,000 GRAT guide vane motors have been deployed worldwide. Our motors offer broad compatibility, supporting all types of centrifugal chillers—including single-stage compression, double-stage compression, variable frequency, and magnetic levitation models. They continuously protect the unit’s “heart” (compressor), ensuring trouble-free operation and establishing a stable temperature safety line for industrial processes.
Core Patent Technology
- DDS Switching Debugging: Based on independent patented technology, this feature allows non-specialists to perform rapid calibration, significantly shortening installation and maintenance cycles.
- PPD Positioning: Precisely compensates for errors and maintains millimeter-level positioning accuracy. Combined with high-quality imported potentiometers, it guarantees long-term operational stability.
Protection in Complex Environments
- Robust Housing: Constructed from aluminum alloy die-casting with an IP68 protection rating.
- High-Quality Components: Utilizes imported servo units and resin-encapsulated circuit boards.
- Anti-Interference: Excellent resistance to electromagnetic interference, making it suitable for challenging industrial environments such as those with high humidity and strong radiation.
18 Years of Reputation: The Choice of Global Customers
The GRAT guide vane motor is the preferred choice for many world-renowned manufacturers, including:
- Dunham-Bush (Central Air Conditioning)
- Johnson Controls Hitachi
- Ebara
- Hisense Hitachi
- Grundfos Pumps
- CNOOC, Sinopec, CNPC
- China Shipbuilding Industry Corporation
With over 200,000 units deployed, our motors serve critical cooling applications across the electronics, chemical, and pharmaceutical industries worldwide.
Looking Ahead
GRAT remains committed to continuous product optimization through technological innovation. We aim to provide even more stable and efficient guide vane drive solutions for industrial chiller units, partnering with customers to create a new future in refrigeration.