Tubed Liquid Cold Plates represent a time-tested, economical approach to liquid cooling. These
cold plates feature copper or aluminum tubes mechanically bonded or epoxied into machined
grooves in aluminum base plates. The simple yet effective construction provides reliable thermal
performance at a lower cost point than more complex cold plate designs. Tubed cold plates excel
in applications requiring moderate to high heat removal where space allows for their typically
thicker profiles.
How It Works
Tubed liquid cold plates transfer heat through a straightforward thermal path: component heat
conducts into the aluminum base plate, which spreads thermal energy laterally. The embedded
copper or aluminum tubes are positioned in direct contact with the base plate through machined
channels. Heat conducts from the base plate into the tube walls and then into the flowing
coolant inside the tubes. The tube routing—typically serpentine or parallel paths—is designed to
balance temperature uniformity versus pressure drop. Coolant enters through an inlet fitting,
flows through the tube network absorbing heat, and exits through an outlet fitting to return to
a cooling system or heat exchanger. The mechanical bond or thermal epoxy interface between tubes
and base plate maintains excellent thermal contact despite thermal cycling and vibration.
Key Features
Proven Reliability:Decades of field experience demonstrate
long-term durability
Cost-Effective Design:Simple construction reduces
manufacturing costs
Robust Construction: Mechanical bonding withstands
vibration and thermal cycling
Good Thermal Performance:Effective heat transfer for many
industrial applications
Tube Material Options: Copper tubes for maximum conductivity
or aluminum for weight reduction
Flexible Configurations:Various tube routing patterns and
base plate sizes
Standard and Custom: Off-the-shelf solutions or designs
tailored to requirements
Easy Maintenance:Simple design facilitates inspection and
servicing
Technical Specifications
Base Material: Aluminum 6061-T6 or 5052
Tube Material:Copper (C122) or aluminum (6063)
Tube Diameter: 6mm to 12mm (1/4" to 1/2") standard
Tube Bonding: Mechanical swaging, epoxy bond, or
solder bond
Base Thickness:8mm to 25mm (application dependent)
Operating Temperature: -40°C to +120°C
Pressure Rating:8 bar to 15 bar (design dependent)
Thermal Resistance:0.1°C/W to 0.5°C/W (size and
design dependent)
Flow Rate:2-15 LPM (application dependent)
Port Types: Compression fittings, NPT threads, or
barb connections
Standard Sizes:100mm to 500mm length/width (custom
available)