SeeweTek | Magnetic Field Generators, Magnetism Testing Solutions, Physical Property Testing Solutions, Superconducting Magnets

In fields such as materials research and biomagnetism, a stable magnetic field environment is the cornerstone of experimental success. Our 60-90mT large-bore solenoid addresses three core pain points with technological innovation.

Research on magnetocardiography and magnetoencephalography functional imaging at a quantum precision measurement laboratory in a top 985 university. The team independently developed a spin-exchange relaxation-free (SERF) atomic magnetometer with sensitivity reaching 10 fT/√Hz. However, geomagnetic field disturbances (~50 μT) and laboratory stray magnetic fields cause frequent depolarization of atomic spins, resulting in a signal loss rate of up to 40%, and weak magnetic anomaly signals are submerged in noise.

The head of a magnetoelectric functional materials team at a Double First-Class university stated: "Our chiral magnetic domain observation project requires a uniform magnetic field environment that can accommodate a complex optical path system, with temperature fluctuations less than ±0.5°C during 72 hours of continuous operation. After surveying the market, we found that either the magnet volume was insufficient or the thermal stability could not meet the requirements." The industry's "space-strength-stability" impossible triangle has found its solution in our delivered Φ150mm water-cooled horizontal electromagnet.

Our company can provide magnetic measurement and various scientific instruments for laboratories in universities, research institutes, and other institutions.

Hunan Shengwei Precision Instrument Technology Co., Ltd., based in Changsha, Hunan, is a professional provider of scientific instruments and testing solutions, integrating product R&D, design, manufacturing, and sales. Since its establishment, the company has focused on providing scientific testing instruments and systems, covering magnetic parameter measurement, magnetic material measurement, physical property measurement, low temperature, magnetic field generation and shielding, high-precision power supplies, etc. It also offers customized magnetic measurement solutions and magnetic application simulation. The company currently has a professional team capable of providing pre-sales consultation, technical support, after-sales service, and more. Team members graduated from well-known domestic universities in physics, automation, electronics, and instrumentation, with over ten years of experience in sales, development, and after-sales service of magnetic equipment. They have long served industries such as universities, research institutes, magnetic material manufacturing, industrial manufacturing, and national defense. The company is willing to exchange experiences, communicate applications, and cooperate with electromagnetic technology professionals in various industries. The company is committed to providing suitable scientific instruments and testing solutions for industry experts based on professional discipline foundations, high-quality products, and efficient after-sales service.

We provide various magnetic field generation devices including solenoids, Helmholtz coils, electromagnets, custom-shaped coils, and custom-shaped electromagnets, as well as superconducting magnets for ultra-high magnetic field requirements.