Winshare water cooling head customization

Winshare Thermal Alloy: Direct contact with heat source, efficient heat exchange, customized liquid cooling core.

What is Water Block?

We make water blocks to cool hot parts like CPUs, GPUs, IGBTs, or battery packs. The block sits tight on the heat source. Coolant flows inside special channels. Heat moves fast to the liquid.

Core Features:

Direct fit: Sits right on heat source. Fast heat move.

Smart channels: Pins or fins inside. More contact area.

Strong cooling: Liquid takes big heat loads.

Keeps parts cool: High-power devices stay in safe range.

Full custom: Any size, shape, or port you need.

Winshare water block product advantages and features

With its superior design and manufacturing process, Winshare water blocks offer several significant advantages for your liquid cooling system, making them an ideal choice for solving high heat density heat dissipation challenges.

Direct touch

Lowest heat resistance. Fast cooling.

High power ready

Handles CPUs, GPUs, EV batteries, servers.

Smart channels

Micro fins or pins boost heat pickup.

Copper or aluminum

Best heat transfer materials.

Compact size

Fits small spaces. No big fans.

Custom design

Any shape or flow path

Top quality

ISO 9001 & TS 16949 certified.

How Winshare Water Blocks Work

The core working principle of Winshare water blocks is based on efficient forced convection heat transfer. It achieves rapid heat absorption and transfer by introducing the coolant directly into the internal flow channel that fits closely with the heating device. The whole process is a continuous closed-loop loop

Heat Conduction

The heat generated by heat-generating devices (such as chips) is first efficiently conducted to the heat exchange surface inside the water block through the thermal interface material (TIM) and the bottom plate of the water block. This step is key to ensuring that heat can quickly enter the cooling system from the heat source.

Fluid entry and distribution

The coolant, typically deionized water, glycol aqueous solution, or specialized media, driven by an external water pump, enters the water block from the water inlet. Internally designed precision flow channels, such as microchannels, pin fins or high-density fins, ensure that the coolant flows evenly and efficiently through all heat exchange zones, avoiding local overheating.

Convection heat transfer

The coolant flows at high speed in the flow channel, and the inner wall of the water block conducts powerful convection heat transfer to quickly absorb heat. The design of the runner optimizes fluid distribution and turbulence, maximizes the heat transfer coefficient, and allows heat to be quickly carried away by the coolant.

Heat Exhaustion and Circulation

The coolant that absorbs heat rises in temperature, flowing out of the water block from the outlet and into other components of the liquid cooling circulation system (e.g., radiators, fans), where heat is dissipated into the environment. The cooled liquid is then driven by a water pump to recirculate back to the water block, forming a continuous, efficient closed loop of heat management.

This efficient heat transfer mechanism allows the water block to handle extremely high heat flux densities and maintain the heating device within a safe and stable operating temperature range, thereby significantly improving system performance, reliability, and service life.

What are the components of Winshare water blocks?

The Winshare water block is the result of the intricate design of multiple precision components working together to ensure efficient and reliable liquid cooling performance. Understanding these components helps you comprehend the operating mechanism and customization potential of your water block.

Base Plate

Materials: Typically high-purity copper (excellent thermal conductivity for scenarios where heat dissipation is critical) or aluminum alloys (lightweight and cost-effective for applications where weight and cost are a concern). Function: The substrate in which the water block is in direct contact with the heating device. Its surface must be precision machined to achieve extremely high flatness and low roughness to maximize the efficiency of heat transfer from the heat source to the water block.

Internal Fin/Channel Structure

Type: This is the core heat transfer area of the water block and includes various designs such as micro-channels, pin fins, straight fins or wavy fins (wavy fins). Function: These structures greatly increase the contact area between the coolant and the inner wall of the water block and optimize the fluid flow pattern, creating turbulence for efficient heat exchange. The design of the runner directly determines the heat dissipation performance and fluid pressure drop characteristics of the water block.

Top Cover (Cover/Lid)

Materials: The same high thermal conductivity metal as the base plate, or engineering plastics, transparent acrylic, etc. can be selected according to the design requirements (easy to observe the internal fluid flow and visual effect). Function: Combined with the base plate, it forms a completely enclosed coolant cavity, ensuring that the coolant circulates in the preset flow channel and prevents leakage.

Seals/O-rings

Materials: Usually use high-quality rubber (such as EPDM, Viton) or silicone materials that are corrosion-resistant, high-temperature, and pressure-resistant. Function: Provides a reliable seal between the base plate and the top cover, preventing coolant leakage and ensuring long-term stable operation of the liquid cooling system. Seals are selected based on the chemical compatibility of the coolant and the operating temperature.

Inlet/Outlet Ports

Type: Various standard interfaces (such as G1/4 thread, in-line barb fittings) or quick couplings can be customized to accommodate different pipe connection methods. Function: As the connection point between the water block and the external liquid cooling circulation system (pump, radiator, water tank, etc.), guide the coolant to enter and exit the water block efficiently.

Mounting Brackets & Screws

Function: Securely and stably mount the water block to the heating device and apply uniform and appropriate mounting pressure to ensure close contact between the base plate and the heat source, maximizing heat conduction efficiency. Customization: Precise customization can be made according to the size and mounting holes of different CPU/GPU sockets, IGBT modules, or other customized devices.

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Winshare Water Block: Core Product Parameters and Customization Capabilities

Winshare is committed to providing highly customized water block solutions to meet your demanding requirements for ultimate thermal performance, specific sizes, and fluid characteristics. Our design and manufacturing capabilities cover the following key parameters

Thermal Performance Thermal resistance as low as 0.01 °C/W

By optimizing the internal runner structure, material selection, and surface treatment, excellent heat transfer efficiency is achieved, ensuring that the temperature of the heating device is effectively controlled.

Size and shape customization Maximum size 600mm x 600mm

According to the package size, heat dissipation requirements and internal space constraints of different heating devices (such as CPUs, GPUs, IGBTs), complex customizations such as arbitrary shapes, openings, integrated mounting points, and multi-layer stacking can be carried out.

Pressure Drop It can be optimized according to the needs of the system

While ensuring efficient heat dissipation performance, the flow channel optimization design minimizes the resistance of coolant flowing through the water block, thereby reducing the power consumption and noise of the water pump and improving the overall energy efficiency of the system.

Flow Rate Customized design to meet system requirements

Accurately match the coolant flow required by your liquid cooling system design and total heat load to ensure that the coolant can effectively remove heat and avoid local overheating or undercooling.

Surface Flatness Better than 0.01 mm

Through high-precision CNC machining and fine grinding, the contact surface between the water block and the heating device is ensured to be extremely flat, minimizing the contact thermal resistance and improving the thermal conductivity efficiency.

Operating Pressure Up to 200 PSI

The robust structural design, reliable welding/brazing process, and strict seal testing ensure the safe and stable operation of the water block in the high-pressure liquid cooling system, eliminating the risk of leakage.

Winshare Water Block: Core Technology and Manufacturing Process

With deep expertise in the field of thermal management and advanced production equipment, Winshare employs diverse manufacturing processes to provide customers with high-performance, high-reliability customized water block to meet various demanding heat dissipation needs.

Main manufacturing processes

CNC Machining: This is the most common method used to manufacture high-precision water blocks. Intricate internal runner structures are milled directly from solid metal blocks through high-precision CNC machines, achieving extremely high dimensional accuracy and surface finish, ensuring optimal thermal contact. Brazing: A process in which a pre-machined fin structure, such as a high-density copper fin, is connected to a water block base plate by filling metal at high temperatures to create a sealed coolant runner. Brazing is suitable for manufacturing water blocks with complex fin arrays and multiple material combinations. Friction Stir Welding (FSW): An advanced solid-state joining technique that involves rubbing two pieces of metal, typically an aluminum alloy, through a high-speed rotating stir head to generate heat and mix them, creating a dense, defect-free connection. FSW is particularly suitable for manufacturing internal runners, providing superior structural integrity and pressure resistance. Skiving: Thin, dense fins are continuously shoveled from a metal block with a special tool, forming a structure that is integrated with the base. This process efficiently produces water blocks with high-density fins, reducing thermal resistance to the connection.

Internal runner structure technology

Micro-channels: Extremely fine channels in width and depth at the micron level are processed on the base plate of the water block. This design greatly increases the contact area between the coolant and the water block, resulting in heat dissipation at ultra-high heat flux densities (e.g., > 500 W/cm²), but often with higher pressure drops. Pin Fin Arrays: Densely arranged cylindrical or square pin fins on the base plate. These pins effectively disturb fluids and enhance turbulence, significantly improving heat transfer efficiency while balancing the pressure drop to some extent. High-Density Fins: Extremely thin, extremely dense parallel or wavy fins achieved by precision machining or brazing. This design maximizes heat transfer surface area and is suitable for high-power applications that require efficient heat dissipation over a large area.

Material selection and surface treatment

Core Material: Copper (C11000/T2): The best thermal conductivity is the preferred material for high-performance water blocks, especially suitable for scenarios with extreme requirements for heat dissipation efficiency. Aluminum Alloy (6061/6063): Lightweight, cost-effective, suitable for applications with weight and cost requirements, and good machinability. Surface Treatment: Nickel Plating: Forms a nickel coating on the surface of the copper water block, enhancing corrosion resistance, especially when the water block is connected to an aluminum radiator or pipeline, preventing electrochemical corrosion. Passivation: Chemical treatment of stainless steel water blocks to enhance their inherent corrosion resistance. Anodizing: Targeting aluminum, it forms an oxide film that provides protection, insulation, and aesthetic effects.

Winshare water block usage scenarios

With its superior heat dissipation performance and high customization capabilities, Winshare water blocks are widely used in high-power, high-heat flux density devices that require efficient thermal management. It is not only the key to solving cooling bottlenecks, but also an important guarantee to improve the overall performance and reliability of the system.

High-Performance Computing (HPC)

Server CPU, GPU, AI accelerator card, supercomputing cluster

New energy vehicles

Power battery thermal management, motor controller, on-board charger

Data Centers vs. Servers

High-density blade servers, liquid-cooled cabinets, edge computing

Industrial automation and lasers

Industrial control systems, laser equipment, medical imaging equipment

Power electronics and IGBTs

IGBT modules, frequency converters, inverters, high-power power supplies

Energy storage system

Large-scale battery energy storage and power conversion systems

Why choose Winshare Water Block?

Professional water block design and manufacturing capabilities

We have an experienced and skilled water block design and manufacturing team. They are proficient in the optimization of various internal runner structures (e.g., microchannels, pin fins) and the customization of complex shapes, enabling them to provide optimal liquid cooling solutions tailored to your unique needs, ensuring superior heat dissipation performance.

Advanced production equipment and technology

Winshare is equipped with industry-leading precision CNC machines, vacuum brazing furnaces, and friction stir welding (FSW) equipment. These advanced production tools and processes ensure extreme precision, efficiency, and reliability in the manufacturing process, meeting your needs for large-scale mass production while ensuring consistent product quality.

Strict quality control and testing

We strictly follow international quality management system standards such as ISO and IATF. Each water block is subjected to rigorous factory tests, including thermal resistance, pressure drop, flow rate, high-pressure air tightness, cleanliness, and long-term reliability testing, to ensure consistent performance and excellent quality in every product delivered.

Comprehensive customization services

From the initial selection of the water block, detailed structural design, prototype sample production to the final mass production and delivery, we provide one-stop, all-round customization services. Winshare's team of engineers will work closely with you to ensure that the product design perfectly aligns with your unique application needs and enables efficient conversion.

Winshare Water Block: Frequently Asked Questions (FAQs)

Q Why is pressure drop important in liquid cooling systems?

A Commonly used capillary structures for vapor chambers include sintered (formed porous structures by sintering metal powder with strong capillary strength and excellent performance), multi-layer wire mesh (compressed from multiple layers of precision wire mesh, cost-effective), and composite (combining multiple structures to optimize performance). The choice of type depends on the specific heat transfer requirements and cost considerations.
Q What is the typical customization cycle for water blocks?

A The customization cycle for a water block depends on the complexity of the design, the chosen materials, the manufacturing process, and the order volume. Typically, it takes 2-4 weeks from design confirmation to prototype sample delivery. Once the prototype has passed rigorous testing and is confirmed by you, the cycle time for mass production depends on the specific quantity and process. Winshare communicates closely with you, provides a clear delivery timeline, and strives to optimize the production process to meet your project schedule needs and achieve on-time delivery.
Q What are the types of internal runner structures of water blocks, and what are the characteristics of each?

A Heat pipes are primarily used to transfer heat from one point to another in a linear manner. Vapor chambers can be understood as two-dimensional planarized heat pipes that quickly diffuse and homogenize heat across the entire surface. Vapor chambers are better at handling hot spots with high heat flux density and achieving surface uniformity, but they are usually more expensive and require more stringent manufacturing processes.
Q What impact does the material selection of a water block have on its performance?

A Winshare is capable of manufacturing vapor chambers as thin as 0.3mm. The specific thickness limit depends on the size of the vapor chamber, the type of internal capillary structure, and the desired heat transfer properties. Ultra-thin vapor chambers are primarily used in compact electronic devices with extreme space requirements.

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