The Dry Cryostat System is a high-performance refrigeration device designed for advanced cryogenic scientific research and material testing. This product series utilizes Gifford-McMahon (G-M) closed-cycle refrigeration technology combined with an efficient Variable Temperature Insert (VTI), delivering a stable and controllable temperature environment from 3 K to room temperature. By operating entirely on high-purity helium gas circulating in a closed loop without the need for consumable cryogens like liquid helium, the system provides an economical, efficient, and sustainable cryogenic solution.