WE-HTS-5T
High-Temperature Superconducting (HTS) Solenoid Magnet System
YBCO Tape-Wound Solenoid for Continuous High-Field Applications
The Woodruff Engineering WE-HTS-5T is a cryocooled, high-temperature superconducting (HTS) solenoid magnet system delivering 5 T in the bore and 8.2 T peak field on the conductor, within a 60 mm free bore suitable for in-vessel machine mounting. The system is built on YBCO (YBa₂Cu₃O₇) second-generation HTS tape, selected for its record engineering current density of over 1,000 A/mm² at 20 K, 20 T, as demonstrated in large-volume commercial production (Molodyk et al., Scientific Reports, 2021). Coils are housed in a stainless steel or aluminum vacuum jacket operating at ≤10⁻³ Torr (UHV-compatible to 10⁻⁶ Torr), insulated with multi-layer super insulation, and cooled to 20 K by a closed-loop two-stage cryocooler thermally coupled via OFHC copper—eliminating the need for liquid cryogens. Dual-technology cryogenic temperature sensors provide redundant monitoring; a resistive heating system enables controlled warm-up and in-vessel adjustment. Current feedthroughs are thermally optimized across the ambient-to-20 K gradient. A waveform-controlled high-current power supply is available on request. Delivered as a complete, factory-tested system pair including vacuum jacket, cryocooler, and power supply.
Technical Specifications
5 Tesla
In-Bore Field Strength
60 mm
Bore Diameter
20 K
Operating Temperature
8.2 Tesla
On-Coil Field Strength
The WE-HTS-5T is designed from the ground up for cutting-edge scientific and industrial applications. This robust solenoid is built to withstand long-term operation. Powerful cryocooling allows stable and uniform field generation over long time scales. UHV-compatible variants can withstand the intense conditions found in quantum computing and fusion energy research. Customizable geometry and power ratings give you full command over field characteristics. View our comprehensive spec sheet below or send us a message to find out how we can magnetize your project.
Key Features
YBCO Pancake Coil Architecture
12 mm YBCO 2G HTS tape wound in pancake coils and stacked into a solenoid, mechanically restrained against magnetic forces and bonded for structural integrity.
No Liquid Cryogens Required
Closed-loop two-stage cryocooler (>60 W @ 25 K) replaces liquid helium or nitrogen, eliminating cryogen logistics and enabling long-duration unattended operation.
Record Engineering Current Density
YBCO conductor with Y₂O₃ nanoparticle vortex pinning delivers Jᴇ > 1,000 A/mm² at 20 K, 20 T in high-volume commercial production — exceeding SPARC fusion targets.
UHV-Compatible Construction
Metal-jacketed vacuum system rated to ≤10⁻⁶ Torr with ASTM E595-compliant fasteners, MLI super insulation, and flexible mounts for thermal expansion management.
Dual-Technology Temperature Sensing
Two independent cryogenic sensor technologies provide fully redundant temperature monitoring, with resistive heaters for precise temperature control and fast warm-up.
Waveform-Controlled PSU Option
Factory-matched waveform-controlled high-current power supply with programmable ramp, flat-top, and ramp-down profiles available on request (ref: 842010V06).
Why Choose THE WE-HTS-5T?
CUSTOM-MADE • At Woodruff Engineering, we work with you to design a coil perfectly suited to your needs.
READY TO USE • This solenoid comes with everything you need, including an integrated cryocooler and optional paired power supply.
RELIABLE PERFORMANCE • Our water-cooled coil arrays are built to last. Even after thousands of thermal cycles, your array will continue to generate a precise, uniform field.
LARGE-VOLUME WORKING FIELD • Ideal for testing full-scale components that smaller systems simply can’t accommodate.
Target Applications
Quantum Computing Research
Used inside dilution refrigerators to apply strong fields to qubits under test – for example, in quantum annealing hardware or flux qubit tuning.
Fusion Research
High-field solenoid magnets for magnetized plasma confinement, magnetized liner inertial fusion, and compact tokamak / spherical torus experiment inserts.
Beam Physics & Accelerators
Solenoid focusing and beam steering magnets for particle accelerators, free-electron lasers, and charged-particle transport lines requiring sustained high fields.
High-Field Science & Industry
NMR spectroscopy, MRI research magnets, materials characterization in high field, and industrial process applications requiring cryogen-free superconducting solenoids.