Hardware AtlasSupplier reference Explore in 3D

SPACE / Structure & thermal / REVIEWED 2026-09-11

F03Heat pipes & thermal straps

Move heat from equipment to radiators.

Manufacturers & products

Two-phase heat pipes transport heat using a working fluid; solid straps use conductive metal or graphite. Source the transport element and its end interfaces as a defined assembly, including flexibility and thermal-vacuum requirements.

These are sourcing candidates, not a confirmed Starlink supply chain.

manufacturer

Advanced Cooling Technologies

CCHP, VCHP, loop and space copper-water heat pipes

Space heat-transport hardware across several working-fluid and control architectures, with integration into thermal panels. [1]

Custom program inquiry

Request a configuration-specific quotation, drawing and current availability from the manufacturer using the linked product information.

Product scope & qualifications

Fluid, temperature and transport capacity must be tied to one design.

View product & inquiry route

manufacturer

ARQUIMEA

Axial, arterial and diode heat pipes

Off-the-shelf profiles and custom heat pipes for satellite thermal control, including bent aluminum extrusions and stainless-steel arterial constructions. [2]

Manufacturer inquiry

Request a configuration-specific quotation, drawing and current availability from the manufacturer using the linked product information.

Product scope & qualifications

Published family endpoints are not a jointly achievable specification.

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manufacturer

EHP

Heat pipes and loop heat pipe systems

Extruded aluminum/ammonia heat pipes plus other envelope/fluid options and custom thermal buses. [3][4]

Company location: Nivelles, Belgium

Manufacturer inquiry

Request a configuration-specific quotation, drawing and current availability from the manufacturer using the linked product information.

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manufacturer

Eaton / Boyd Thermal

Space heat pipes and thermal straps

Space heat-pipe heritage and conductive copper, aluminum or graphite links for transferring heat between equipment and sinks. [5][7][6]

Custom program inquiry

Request a configuration-specific quotation, drawing and current availability from the manufacturer using the linked product information.

Product scope & qualifications

Former Boyd Thermal and Eaton thermal offerings are consolidated in this listing.

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manufacturer

ThermAvant

Oscillating heat pipe assemblies

Embedded oscillating heat pipes and integrated thermal constructions that transport equipment heat to radiator surfaces. [8]

Custom program inquiry

Request a configuration-specific quotation, drawing and current availability from the manufacturer using the linked product information.

Product scope & qualifications

Request model-specific capacity and qualification status.

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manufacturer

Thermal Management Technologies

Flexible thermal straps

Standard and custom copper braid, copper foil and aluminum foil straps with specified end blocks and geometry. [9]

Manufacturer inquiry

Request a configuration-specific quotation, drawing and current availability from the manufacturer using the linked product information.

Product scope & qualifications

Published custom examples do not define every standard strap.

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manufacturer

Technology Applications, Inc.

Copper, graphite and hybrid straps

Flexible thermal links supplied as standard or custom spacecraft assemblies with several conductive material options. [10]

Company location: Boulder, Colorado, USA

Manufacturer inquiry

Request a configuration-specific quotation, drawing and current availability from the manufacturer using the linked product information.

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manufacturer

Thermotive

Metal-foil and graphite thermal straps

Custom copper, aluminum and pyrolytic-graphite thermal links for space and other thermal applications. [11]

Manufacturer inquiry

Request a configuration-specific quotation, drawing and current availability from the manufacturer using the linked product information.

Product scope & qualifications

Ask which contamination controls and acceptance tests apply to the offered flight configuration.

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manufacturer

Space Dynamics Laboratory

Solderless thermal straps

Engineered flexible thermal straps including graphite constructions, with fabrication and thermal-characterization capability. [12]

Custom program inquiry

Request a configuration-specific quotation, drawing and current availability from the manufacturer using the linked product information.

Product scope & qualifications

Custom engineered hardware; delivery scope must be agreed directly.

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manufacturer

Airbus

HiPeR Flexlinks

Flexible conductive thermal links offered within Airbus's spacecraft thermal-equipment portfolio. [13]

Manufacturer inquiry

Request a configuration-specific quotation, drawing and current availability from the manufacturer using the linked product information.

Product scope & qualifications

This listing is for thermal straps, not a complete radiator panel.

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manufacturer

Thermal Space

ThermalLyNX straps

Graphene-based conductive thermal straps offered for hardware thermal integration. [14]

Manufacturer inquiry

Request a configuration-specific quotation, drawing and current availability from the manufacturer using the linked product information.

Product scope & qualifications

Request measured conductance, attachment design and space acceptance evidence for the exact configuration.

View product & inquiry route

What remains unverified

Most published pages describe configurable families rather than stocked part numbers with fixed thermal curves.
Manufacturing site and unit-level traceability are not publicly established for every supplier.

Where it comes from

A company address is shown separately from a published factory location. Request the manufacturing site and lot traceability for the exact part when sourcing.

What to compare

Transport capacity at operating point · W
Specify fluid temperature, length and orientation for a heat pipe, rather than comparing unconstrained maximum watts.
End-to-end conductance · W/K
Include contact resistance and mounting interfaces, not only the material conductivity.
Operating & survival temperatures · °C / K
Match working-fluid limits, freeze/thaw behavior and strap-material properties to the mission.
Length, bends & routing · mm / m
Use the actual geometry; bends and evaporator/condenser lengths can change performance.
Heat input density · W/cm²
Check local evaporator or strap-interface load and hot spots.
Flexibility & transmitted load
For precision payloads, compare stiffness, vibration transmission and motion cycles.
Mass & interfaces · g
Include end blocks, fasteners, surface treatment and any containment.
Cleanliness & containment
Review particles, outgassing, leak testing and fluid/material compatibility.
Ground versus orbit performance
Document gravity-sensitive test orientation and how ground results support the flight case.

Selection & integration notes

Do not compare a graphite strap's bulk conductivity directly with a complete heat pipe's heat-transport rating.
Heat-pipe family size and temperature ranges describe design options, not every combination of them.
For optical payloads, end-block cleanliness and mechanical isolation can be as important as conductance.

Published product examples

2 REFERENCES

Specifications belong to the named product and configuration.

ARQUIMEA axial-grooved heat pipe profilesARQUIMEA

Outer-diameter options: 6–20 mm[2]Profile family; select a particular bore and wall geometry.
Envelope material: Aluminum 6063[2]Axial-grooved family.
Maximum listed length: Up to 6 m[2]Custom configuration; does not establish heat transport at this length.

Single- and dual-bore profiles are offered. Request the working-fluid, temperature and capacity curves for the chosen part.

Example sources [2]

TMT large custom thermal strap exampleThermal Management Technologies

Approximate length: 50 cm[9]Published custom chamber heat-spreader example.
Application temperature: 90 K[9]Cryogenic chamber context.
Thermal conductance: 1.5 W/K[9]For the cited custom example, not a family-wide rating.

The page separately mentions a smaller 0.6 W/K example; that number is not combined with this configuration.

Example sources [9]

Sources & references

REVIEWED 2026-09-11

Manufacturer pages and technical documents support the linked claims. A review date is not a publication date or stock check.

Spacecraft thermal control Advanced Cooling Technologies · Publication date not stated
Space heat pipes and structural/thermal integration after Canyon Composites acquisition.
Accessed 2026-09-10
Heat pipes for satellite and space applications ARQUIMEA · Publication date not stated
Axially grooved and arterial heat pipe profiles, materials and configuration-dependent ranges.
Accessed 2026-09-10
Heat pipes EHP · Publication date not stated
Extruded aluminum/ammonia heat pipes and custom alternative materials/fluids.
Accessed 2026-09-10
Products and services EHP · Publication date not stated
Thermal products and Nivelles company location.
Accessed 2026-09-10
Space and flight heritage highlights Eaton · Publication date not stated
DART radiator panels and PACE loop heat pipes from the former Boyd thermal business.
Accessed 2026-09-10
Completion of Boyd Thermal acquisition Eaton · Published 2026-03-12
Boyd Thermal acquisition closed March 12, 2026; avoid counting Boyd and Eaton as separate thermal suppliers.
Accessed 2026-09-10
Thermal straps and busses Eaton · Publication date not stated
Copper, aluminum and graphite conductive links for aerospace and orbital applications.
Accessed 2026-09-10
Oscillating heat pipe radiators ThermAvant · Publication date not stated
Custom OHP radiator construction and structural integration.
Accessed 2026-09-10
Thermal components Thermal Management Technologies · Publication date not stated
Standard/custom copper and aluminum straps; distinct custom conductance examples.
Accessed 2026-09-10
Space thermal straps Technology Applications, Inc. · Publication date not stated
Copper, graphite and hybrid thermal straps; Boulder company location.
Accessed 2026-09-10
Thermal straps Thermotive · Publication date not stated
Custom metal-foil and graphite thermal straps.
Accessed 2026-09-10
Thermal straps and technologies Space Dynamics Laboratory · Publication date not stated
Solderless flexible straps and graphite thermal-link development.
Accessed 2026-09-10
Power and thermal management equipment Airbus · Publication date not stated
HiPeR Flexlinks conductive thermal straps, not complete radiator panels.
Accessed 2026-09-10
Thermal straps Thermal Space · Publication date not stated
ThermalLyNX graphene-based thermal straps.
Accessed 2026-09-10