What is the difference between Monopress and Multipress?

Monopress uses single-sided pressed-in tubes: one or more tubes are pressed into one side of the base body. Multipress extends this principle to at least two sides, allowing components to be thermally connected and uniformly cooled on multiple sides. Multipress is particularly suitable for geometrically complex assemblies.

When is Structureflow the better choice over Interpress?

Structureflow is the better choice when maximum cooling performance on a small area is required (e.g. hotspot cooling for IGBTs or laser drivers). Interpress is preferable when uniform temperature distribution across both sides of the base plate is more important than the absolute k-value.

Can a cold plate be designed for multiple coolant media?

The choice of material determines media compatibility. Aluminium coolers are suitable for water-glycol mixtures and many industrial cooling fluids. For aggressive media or pure water, stainless steel tubes or special coatings are used. COOLTEC advises you on media-appropriate material selection.

What connection types are available for coolant inlet and outlet?

COOLTEC manufactures connections according to customer requirements: press-fit, soldered, threaded connections (NPT, G-thread), quick couplings, or individual geometries. The connection position and type are defined as part of the individual design process.

Selecting a Cold Plate: Which Design Fits the Application?

Monopress, Multipress, Interpress, Structureflow or Embeddedflow: five different designs, one task. All five cool reliably, but under different conditions. Which fits depends on power density, installation space, coolant medium, and the required degree of functional integration.

These Factors Determine the Choice of Design

1
Heat Flux Density
High power dissipation on a small area requires a cooler with a high k-value. Structureflow and Interpress are suitable for very high power densities; Monopress and Multipress for medium to high power dissipation.
2
Coolant Path and Cooling Sides
Single-sided cooling? Monopress. Cooling from multiple sides of a component? Multipress. Uniform bilateral cooling via internal tube? Interpress. Maximum internal structure? Structureflow.
3
Installation Size, Weight and Shape
Flat aluminium coolers are lightweight and compact. Embeddedflow combines cooling and housing structure in one component, useful when form and function are to be unified.
4
Media Properties
For aggressive media, pure water, or extreme temperatures, stainless steel or copper tubes offer advantages over aluminium. The choice of material also depends on the coolant medium and the system environment.
5
Functional Integration
Embeddedflow combines cold plate and housing in a single assembly. Suitable for applications where the cooling system is also to serve as carrier or protective housing.

Cold Plate Designs at a Glance

	Design	Particularly Suited for
Monopress	Pressed-in tubes - single-sided	High power dissipation, wide media choice, standard applications
Multipress	Pressed-in tubes - multi-sided	Components that need to be cooled from multiple sides
Interpress	Internal tube - uniformly bilateral	Uniform temperature distribution on both sides of the base plate
Structureflow	Internally structured channels / pins	Maximum power density, hotspot cooling, highest k-value
Embeddedflow	Housing with integrated cooling circuit	Multifunctional assemblies with cooling + housing function

Frequently Asked Questions

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