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OEM Vacuum Brazed Aluminum Cooling Block

Metalli's cold plate technologies include vacuum or controlled atomsphere brazed cold plate, Friction Stir Welded (FSW) performance-fin cold plates, flat tube cold plates, press copper tubed cold plates, copper cold plates.

Metalli's cold paltes are widely used in power electronics, ev battery, data center, medical equipment, lasers and wind turbines.

100% customized as your requirements. Support OEM/ODM. 100% meets the standards of GB, SGS, CE.

Product name : OEM vacuum brazed aluminum cooling block water gpu water cooling plate

                                                     PRODUCT DESCRIPTION






Aluminum alloy 3003, 6063,6061


Dimension (L*W*T)

Up to 500*500*15 mm


Cooling Capacity

500 to 1500 W


Working Pressure

3 to 4 bars



0.15 mm


Surface roughness

3.2 um


Flow rate

5 to 10 L/min


Manufacturing Method

CNC machining Plus vacuum brazing


Joining Method

Vacuum Brazing


Cooling Method

Liquid cooling


Surface Finish

Mill finish or anodization



Deionized Water,Inhibited Glycol and   Water,Dielectric fluid


Warranty time

1 year


Place of Region

Jiangsu province of China


Reference Standard

GB/T 3190-2008,GB/T 14846-2008,ISO 2768

OEM-vacuum-brazed-aluminum-cooling-block-water-gpu-water-cooling-plateOEM-vacuum-brazed-aluminum-cooling-block-water-gpu-water-cooling-plate (1)

Metalli's advanced cooling technologies present a variety of choices for top-notch cooling solutions. Vacuum brazed or controlled atmosphere brazed and CNC machined performance-fin cold plates and chassis ensure efficient heat transfer and long-lasting durability. Friction Stir Welded (FSW) performance-fin cold plates and chassis go a step further in performance and can be tailored to meet specific needs.

For applications with lower power requirements, flat tube cold plates offer a cost-effective solution. On the other hand, press lock copper tubed cold plates deliver exceptional thermal performance at a lower price compared to other copper options. Vacuum brazed and CNC machined copper cold plates excel in thermal conductivity, making them perfect for high-power applications.

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Stamped and vacuum brazed cold plates are versatile and suitable for various applications. Meanwhile, custom cold plates can be personalized to meet specific requirements. Custom channeled cold plates with a ladder configuration provide even higher performance and can be customized to cater to specific cooling demands.

Inner-Finned Brazed Cold Plates are designed for high-performance cooling of high-power electronics. Aluminum extruded and welded or brazed cold plates are lightweight and cost-effective, while aluminum die casting and welded or brazed cold plates offer high thermal conductivity and durability.

Aluminum Cooling Block Vacuum Aluminum Brazing battery cooling plate

▲ Stamped and vacuum brazed cold plate

EV Car Battery Cooling Liquid Cold Plate Water_yyth (9)

▲ Copper tubed cold plate

We also supply value added components as below

●    Fittings and connectors

●    Hoses and tubes

●    Heat exchangers or radiators

●    Pumps and reservoirs

●    Fans

●    Other accessories

Product Applications

cold plate applications & more cold plates

Overview of Cold Plate Technologies:

Selecting an appropriate cold plate technology and design relies heavily on performance requirements, which also impact the cost of the cold plate. Typically, better performance results in higher costs. There are several types of cold plate technologies, including Press-Lock tubed, gun-drilled, channeled, and brazed with internal fin. These technologies are ranked in order of increasing efficiency and cost.

Press-Lock Tubed Cold Plates: These cold plates involve copper or stainless steel tubes pressed into a channeled aluminum extrusion. Custom designs can be created with a fluid path customized for optimal thermal performance, along with additions such as coatings and machining.

Gun-Drilled Cold Plates: These cold plates use aluminum plates that are drilled, and copper or stainless steel tubing is inserted and expanded as necessary. They can be dual-sided and have tighter tolerances than tubed cold plates, making them a good choice for flatness requirements.

Cold Plates with Channels: Created by extruding with multiple channels or other types of channels, these cold plates can be made in various lengths and combined in a ladder-like structure or attached to a base plate to achieve large-scale cooling. Unique designs have been developed to meet specific needs for impedance, pressure drop, and flow.

Cold Plates with Internal Fins: These cold plates are composed of two plates that are bonded together through metallurgical means, with internal fins integrated. These fins, which can be vacuum-brazed with different densities and shapes, enhance the surface area for heat transfer and promote flow turbulence. By offering excellent design flexibility, brazed cold plates are highly versatile.

Contact Us

Contact Us

    NO. 12 East mozhou road, Jiangning development zone, Nanjing, China
    Tel : +8625-86136265
    Fax :  +8625-86136302
// :  +86-136-2610-7044
    E-mail : info@njmetalli.com
    Skype : fly20091116

Zip Code: 211111
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