Deep machining Liquid Cold Plate

Kingka’s Deep Machining Liquid Cold Plates are precisely engineered to provide reliable and efficient cooling for applications that require stable thermal performance with simplified manufacturing and cost efficiency. This type of gun-drilled aluminum cold plate is an excellent solution when moderate cooling requirements must be met without sacrificing design precision or structural integrity.

Advanced Deep Machining Process

Our deep machining process involves drilling a series of deep, parallel holes into a solid aluminum block at carefully calculated angles and depths. These holes form internal liquid flow channels that enable efficient heat transfer throughout the cold plate.
The channels are sealed using external and intermediate plugs, creating a defined liquid path that guides coolant from the inlet to the outlet connectors with precision. This design ensures smooth and controlled fluid dynamics, improving system cooling uniformity and minimizing pressure loss.

One-Piece Aluminum Construction for High Precision

Each cold plate is manufactured from a single piece of aluminum, eliminating joints, welds, or thermal interfaces that could introduce mechanical stress or thermal resistance.
Because the base material is never subjected to thermal cycling, flatness and dimensional stability are easier to achieve — a key advantage in high-precision applications. The result is a robust and stable structure that maintains tighter tolerances and consistent performance compared to traditional tubed cold plate designs.

Performance and Design Advantages

• No thermal boundary issues — pure metal-to-metal conduction

• Simplified structure ensures high reliability and reduced leakage risk

• Easy customization for size, channel layout, and fitting options

• Ideal for cost-sensitive thermal management systems

• Compatible with various coolants and flow configurations

Although the thermal performance of deep-drilled cold plates is comparable to copper-tube-in-aluminum alternatives, their ease of manufacture, high flatness, and cost efficiency make them a preferred choice for a wide range of mid-power cooling systems.

Applications

Kingka’s deep machining liquid cold plates are ideal for:

• Power conversion and industrial electronics

• LED and lighting systems

• Battery cooling and low-power EV systems

• Telecommunication equipment

• Test instrumentation and measurement devices

Reliable, Cost-Effective Thermal Management by Kingka

With decades of engineering experience, Kingka delivers optimized thermal management solutions designed to balance cost, performance, and manufacturability. Our deep machining aluminum cold plates allow customers to achieve effective heat dissipation in compact, budget-conscious designs — maintaining component stability and extending operational life.