Water cooler VM Series

The Hitachi VM series is a magnetic-bearing centrifugal chiller that utilizes magnetic levitation technology to achieve a frictionless and non-contact levitation state. VM chillers utilize magnetic bearings to support the spinning rotor of the compressor and leverage centrifugal force to compress refrigerant gas. The compressed gas is used to cool air or water, making the VM series an efficient and reliable cooling solution. Magnetic-bearing chiller with High Efficiency The Hitachi magnetic-bearing centrifugal compressor is designed to maximize energy efficiency and reliability. One of the key features of this chiller compressor is its high-speed direct transmission design, which eliminates the need for speed-increasing gears and reduces transmission loss. Another important feature of the Hitachi magnetic bearing centrifugal compressor is its use of magnetic bearings instead of traditional mechanical bearings. This eliminates the need for lubricating oil, which reduces mechanical loss and maintenance requirements. Combined with Hitachi's high-efficiency closed-type two-stage impeller, the VM series centrifugal chiller achieves a high level of energy efficiency. In fact, under standard GB operating conditions, the chiller can achieve a full load COP as high as 7.0 and an IPLV as high as 9.5. High-efficiency oil-free chiller Magnetic bearing technology offers several advantages over traditional oil-lubricated bearing solutions. It uses magnetic fields to levitate the rotor, eliminating the need for physical contact between the rotor and stator.