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COMPANY RESEARCH / 6302.T

Sumitomo Heavy Industries

4 K pulse-tube cryocoolers and helium compressors

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Where it fits in a quantum computer

Its Advanced Technologies unit (formerly the SHI Cryogenics Group) sells RP-series 4 K pulse-tube cryocoolers with F-series water-cooled helium compressors; the RP-222B3S, launched Sept 3, 2026, gives 2.0 W at 4.2 K and 55 W at 45 K and ships with an F-100 compressor, buffer tanks and gas lines. SHI says its pulse tubes pre-cool dilution refrigerators, which ‘play an important role in emerging quantum computing technology’, and claims the largest installed base of cryocoolers worldwide.

What the evidence establishes

Quantum-computing evidence

Disclosed: SHI’s product pages say its pulse tubes pre-cool dilution refrigerators used in quantum computing, and its Sept 2026 release gives the RP-222B3S specification.

An explicit quantum-computing product, design-in, supply role, program or partnership, such as a part sold for quantum computers or a named quantum-computer customer. For a maker, it means the company’s own quantum computers or processors. This does not establish revenue, market share, volumes or future sourcing.

Component role4 K pulse-tube cryocoolers and helium compressors
EvidenceDisclosed: SHI’s product pages say its pulse tubes pre-cool dilution refrigerators used in quantum computing, and its Sept 2026 release gives the RP-222B3S specification.
How we knowDisclosed The company’s own filing, release, annual report, product page or investor record describes the quantum-computing role. Where customers are unnamed, the listing says so.
Primary sourceSumitomo Heavy Industries — supporting disclosure
Company or official disclosure; vendor claims are attributed to their source.
Checked. This is the research review date, not the source publication or quote time.

Keep in perspective

SHI names no quantum-computer customer, and cryocoolers are not broken out of its Mechatronics segment, where its Q2 FY2026 presentation tied recent cryocooler growth to semiconductor demand. Some pulse-tube models need a Japanese export license.

Diversified business exposure. This describes the breadth or role of the business; it is not an investment rating. A quantum-computing product, design-in or partnership does not by itself establish material quantum revenue, market share, or future returns.

Connections to the assembly

These links explain the technology relationship. The model is illustrative and does not represent an actual manufacturer’s bill of materials.

Pulse-tube cold head

The cold head: a rotary valve that switches the helium flow, regenerators packed with fine metal or rare-earth material, and thin pulse tubes, with a first stage at about 40 kelvin and a second at about 3 kelvin.

Scope of the company links: SHI sells RP-series 4 K pulse tubes (up to 2.0 W at 4.2 K) and says they pre-cool dilution refrigerators; ULVAC makes the pulse tubes for its own dilution refrigerators. The other main maker, Cryomech, has belonged to private Bluefors since Mar 28, 2023, and its PT310-RM is built into Bluefors refrigerators. QuantumCTek uses an unnamed Chinese-made pulse tube, and IHI’s turbo refrigerator for a 10,000-qubit-class system is still in development, so neither is mapped here.

Helium compressor

A water-cooled compressor package that supplies the cold head with high-pressure helium through flexible lines and cleans the gas with an oil adsorber.

Scope of the company links: SHI’s F-70 and F-100 water-cooled helium compressors drive its pulse tubes (the F-70 draws 6.7–8.5 kW with a pulse tube and needs 6–9 L/min of cooling water), and ULVAC Cryogenics lists compressor units in its cryogenic-equipment range. Cryomech compressors are sold by private Bluefors. The scroll capsule inside each compressor package is not documented in our sources.

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