At Cooler Master, we believe great cooling is not about chasing benchmarks. It is about real-world reliability, thoughtful engineering and long-term performance. Our latest generation of liquid cooling features an advanced dual chamber pump design built on years of material science, structural innovation and endurance testing. This design delivers stable, efficient cooling for the long haul.
At Cooler Master, we believe great cooling is not about chasing benchmarks. It is about real-world reliability, thoughtful engineering and long-term performance. Our latest generation of liquid cooling features an advanced dual chamber pump design built on years of material science, structural innovation and endurance testing. This design delivers stable, efficient cooling for the long haul.
The Dual Chamber Advantage
Traditional AIO coolers rely on a single-chamber pump, where coolant flows through a shared internal space. Cooler Master’s dual chamber pump takes a different approach by separating the coolant flow into distinct paths within the housing. This separation prevents warm coolant from mixing with incoming, cooler liquid before it reaches the copper cold plate. This helps maintain optimal thermal transfer. A central flow channel directs coolant more efficiently, reducing thermal interference and supporting more consistent cooling performance.
By isolating the impeller from the motor stator, the dual chamber design also lowers heat exposure on sensitive components which contributes to overall pump longevity. These enhancements make the dual chamber pump especially effective for systems under continuous load, such as during gaming, rendering or professional workflows.
Engineering a Stronger Core
Durability starts with material selection. Our dual chamber pump uses PPS reinforced with 40 percent glass fiber, a material that offers excellent strength and heat resistance.
• Mechanical Strength: Tensile strength ranges from 180 to 200 MPa, while flexural strength reaches 250 to 280 MPa. These numbers reflect the dual chamber’s ability to maintain structure even under high internal pressure.
• Heat Resistance: The material can withstand continuous temperatures up to 240°C, and short-term spikes up to 270°C. This ensures stability during long gaming sessions, professional workloads or overclocking.
• Structural Design: The dual chamber includes internal ribbing around critical mounting areas to increase strength. A 3-millimeter thick outer wall and radial reinforcement ribs help resist deformation under thermal expansion.
Every detail of this structure is designed to hold its shape and integrity over time, even when operating at the edge of performance.
Materials That Withstand the Test of Time
We choose materials that last. Each part of the dual chamber pump and cooling system is optimized for its role and tested to perform under pressure.
• O-Rings: The seal rings use EPDM, a rubber compound with excellent chemical resistance and elasticity. It remains flexible from -40°C to 150°C, resists coolant degradation, and is widely used in automotive systems for long-term reliability.
• Pump Shaft and Bearings: The rotor shaft is ceramic, paired with a PPS+ short fiber bearing. This combination reduces wear over time and ensures long-term rotational precision, even under thermal cycling and chemical exposure.
• Impeller Magnets: We use molded ferrite plastic magnets that resist demagnetization, corrosion, and wear. These magnets maintain torque and rotational stability over years of operation without needing surface coatings or reinforcements.
Each of these parts is validated through real stress tests. We performed 2,000 hours of high-temperature testing at 88°C, followed by disassembly and inspection. No corrosion, deformation, or internal damage was found in any critical component.
High-Performance Tubing for the Real World
A cooling system is only as reliable as its tubing. That is why Cooler Master uses a hybrid compound made from EPDM and IIR. This combination delivers outstanding durability in the face of heat, moisture, and physical stress.
• Thermal and Aging Resistance: EPDM resists heat, ozone, and UV radiation. It does not degrade or become brittle over time, making it ideal for PC builds and servers.
• Sealing and Vapor Control: IIR provides exceptional sealing against vapor loss and coolant evaporation. This helps maintain internal pressure and reduces the need for regular refills.
• Flex Performance: The inner braided structure distributes stress during bending. The tube can handle thousands of flex cycles without cracking or leaking.
This tubing is designed to perform in tight installations, high-pressure environments, and systems that run nonstop.
Coolant That Protects Your Investment
Cooler Master’s coolant is an automotive-grade, alcohol-based formulation that complies with major global standards including ASTM D3306 and SAE J1043. It provides:
• Corrosion Protection: The formula prevents galvanic corrosion between mixed-metal parts, such as copper cold plates and aluminum radiators.
• Thermal Efficiency: Organic acid and inorganic salt additives promote heat transfer while resisting scale buildup and sediment formation.
• Lubricity Enhancers: The coolant includes agents that reduce wear inside the pump and improve overall longevity.
This coolant is chosen not only for performance but for reliability in shipping, storage, and varying temperature conditions across the globe.
Tested and Trusted
Cooler Master puts every part of the system through long-term validation. After 2,000 hours of high-heat testing, the results were clear. The aluminum radiator, PPS chamber, copper fins, seals, impeller, and tubing all showed no signs of degradation or damage. The system maintained structural integrity and function across every component.
This is more than just a checklist of performance specs. It’s a validation of Cooler Master’s commitment to reliability in real-world conditions.
Cooling Without Compromise
The dual chamber pump design is more than a specification. It is a statement of intent. Every design choice, material, and test reflects our commitment to building cooling solutions that last. From the reinforced pump housing to the chemically resistant seals and high-efficiency coolant, this system is built to serve creators, gamers, and builders who need more than basic performance.
Whether you are pushing frames in game, rendering video for hours, or running multi-core simulations, Cooler Master’s dual chamber pump design is made to keep up. No compromises, no marketing tricks, just dependable, proven cooling.
It’s time to Make It Yours.
