Small water tank chiller RKS-GM series (water-cooled)

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Orion Machinery

last updated：Oct 30, 2025

TOEI KAISHA, LTD.

Orion Machine/Chiller. Mid-range model. Water-cooled type. Functions condensed and evolved for ease of use.

■ Achieves temperature control accuracy of ±0.1℃ with electronic expansion valve control. ■ Standard equipped with a high-lift pump (over 30m) *RKS750G will be 20m at 50Hz. ■ Compact ■ Easy operation Operating the chiller is as simple as pressing the operation switch. The circuit breaker is conveniently located on the front for easy ON/OFF of the main power. When an alarm occurs, it can be reset by pressing the reset switch. The alarm content is displayed with an error code when an alarm occurs, ensuring peace of mind. Additionally, it remembers the alarm occurrence history for up to six times, which helps in troubleshooting. The pump can also operate independently, allowing for water circulation even if the refrigeration unit fails. Settings for manual or remote operation are possible. ■ Metal exterior Durable sheet metal exterior designed to withstand long-term use. ■ Adoption of frame structure Robust structure with rigidity provided by the frame. ■ Large capacity water tank The water tank has a large capacity of 10L and is designed to be resistant to changes in liquid temperature. ■ Operable and checkable via computer Items that can be operated via computer: individually operate and stop the chiller unit, individually control the chiller's water supply pump, individually set the chiller's liquid temperature.

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basic information

■RKS750G-MVW Cooling capacity (50/60Hz): 2.2/2.5kW Heating capacity (50/60Hz): 0.6/0.7kW Operating ambient temperature range: 5–40℃ Operating temperature range (liquid temperature): 5–35℃ Cooling water operating pressure (50/60Hz): 0.05–0.2/0.3MPa Control accuracy: ±0.1℃ ■RKS1500G-MVW Cooling capacity (50/60Hz): 4.9/5.3kW Heating capacity (50/60Hz): 1.2/1.4kW Operating ambient temperature range: 5–40℃ Operating temperature range (liquid temperature): 5–35℃ Cooling water operating pressure: 0.5MPa Control accuracy: ±0.1℃

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Applications/Examples of results

Laser processing machines, printers, cutting machines, welding machines, cleaning machines, packaging machines, medical devices, scientific instruments, machine tools, laser markers, electron microscopes, MRI, linear motors, agricultural-related equipment, X-ray devices, concentration devices, shrink fitting devices, micronization devices, ultrasonic inspection devices, semiconductor devices, analytical instruments, high-frequency devices, UV curing devices, surface treatment devices, cleaning tanks, gas cylinder cabinets, reagent cooling devices, resin molding, mold cooling, jacket cooling, grinders, cooling of vacuum pumps, temperature control of paints, chamber electrode temperature control, replacement from tap water, replacement from cooling towers, etc., contribute to the cooling of various heat-generating parts and various temperature adjustments.