SymCool™ Axisymmetric Free-Piston Stirling Cryocooler Design
Featuring an axisymmetric design, the SymCool™ Free-Piston Stirling Cryocooler enables cylindrical modular integration with optical lenses, achieving significant space optimization and streamlined manufacturing.
OrthoCool™ Orthogonal Hybrid Pulse Tube Cryocooler Design (Phase-Shifting Displacers at ambient temperature)​
The orthogonal hybrid pulse tube architecture of the "OrthoCool"™ is an innovative high-frequency pulse tube cryocooler techonogy oriengnally developed by Lihan Cryogenics. This architecture is suitable for the design of refrigerators operating within the temperature range of 20K to 200K and with a cooling capacity ranging from 10W to 1000W.
GyroCool™ Free-Piston Stirling Cryocooler with Rotatable Core
GyroCool™ is a free-piston Stirling cryocooler featuring an axisymmetric design with a fixed stator and a rotatable core assembly. The cryocooler core assembly can rotate independently, making it suitable for compact superconducting motors.
CalmCool™ Ultra-Low-Vibration Pulse Tube Cryocooler
CalmCool™ is a long-life, ultra-low-vibration pulse tube cryocooler driven by opposed linear motors, designed for vibration-sensitive optical and scientific instruments.
TurboCool™ Reverse-Brayton Cryocooler
TurboCool™ is a highly integrated reverse-Brayton cryocooler based on centrifugal compression and turboexpansion technologies. It supports multiple cooling capacity configurations for different application requirements and is suitable for mobile gas liquefaction, superconducting magnet cooling, and scientific cryogenic applications.
TurboCool™ Reverse-Brayton Cryocooler
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Join Lihan and explore more possibilities of low-temperature technology with us

Sales Engineer

Job Responsibilities

1. Develop target customers at home and abroad, explore potential customer demands, and expand new application scenarios and markets.

2. Achieve annual sales targets in accordance with the company’s strategic plan.

3. Monitor industry trends, competitor strategies and changes in customer requirements, and provide relevant feedback to corresponding departments.

4. Lead customer requirement analysis, quotation, contract negotiation, and collection of payments/accounts receivable.


Job Requirements

1. Bachelor’s degree or above in science and engineering disciplines.

2. Minimum 1 year of sales experience.

3. Excellent interpersonal, communication and coordination skills; ability to work under pressure; willing to take short-term business trips.

4. Fluent spoken English; capable of independently handling international business emails and video conferencing.


Application System Engineer

Job Responsibilities

1. Responsible for scheme demonstration, structural design and component selection of high-end non-standard equipment such as cryogenic systems and Dewars; familiar with the selection of cryogenic valves, vacuum valves, radiators, vacuum pump units and other components, as well as vacuum system design and thermal insulation design.

2. Lead the formulation and acceptance review of system test plans, participate in integrated system commissioning, and provide root-cause analysis and permanent solutions for complex issues including mechanical design defects, thermodynamic anomalies and piping leakage.


Job Requirements

1. Full-time bachelor’s degree or above, major in Chemical Machinery, Refrigeration and Cryogenic Engineering, Energy and Power Engineering or related disciplines.

2. At least 3 years of hands-on design experience in pressure vessels, cryogenic systems or heat dissipation systems. Candidates with complete project delivery experience in cryogenic Dewars and vacuum-insulated vessels are preferred.

3. Familiar with precision metal machining, specialized welding and high-precision assembly processes. Prior knowledge of domestic and international design codes for cryogenic equipment and piping is preferred.

4. Proficient in 3D design software; familiar with mainstream brands and suppliers of cryogenic valves and pipe fittings; strong logical thinking and multi-party communication and coordination skills; capable of independently managing end-to-end complex non-standard projects.


Senior Mechanical R&D Engineer

Job Responsibilities

1. Conduct structural design, optimization and improvement of high-speed rotating machinery to ensure product performance and reliability.

2. Participate in the whole process of product trial production, testing and verification, provide technical guidance, and resolve structural issues during trial production.

3. Formulate product design specifications, prepare technical documents (e.g. design guidelines, DFMEA, test reports), and promote standardization processes.

4. Keep track of cutting-edge industry technologies and carry out research on innovative structures to improve product competitiveness.


Job Requirements

1. Full-time master's degree or above, major in Mechanical Engineering, Power Machinery and Engineering Thermophysics, Fluid Machinery or related fields. Candidates with both bachelor's and master's degrees from 985/211 universities are preferred.

2. At least 2 years of experience in structural design of high-speed rotating machinery or precision machinery; familiarity with common materials, machining processes and mechanics/structural analysis.

3. Strong logical thinking and independent problem-solving skills, genuine interest in mechanical design.

4. Good teamwork spirit and communication skills.

5. Candidates who do not fully meet the above requirements but are passionate about structural design with relevant fundamentals are welcome to apply for the Structural Design Engineer position.


R&D Technician

Job Responsibilities

1. Responsible for precision assembly of new products, assisting engineers in testing, and recording test data in detail.

2. Report issues encountered during assembly and testing, participate in problem discussions and structural design reviews.

3. Take part in Quality Control Circle (QCC) improvement projects.


Job Requirements

1. Bachelor’s degree or above, major in Mechanical Design and Manufacturing or related fields.

2. Prior experience in precision machinery product assembly is preferred; outstanding fresh graduates are also welcome.

3. Skills and Competencies:

a. Basic knowledge of machining and assembly; capable of independently assembling, testing, troubleshooting and repairing products according to engineering drawings.

b. Familiar with common machining equipment, processes, precision/accuracy requirements and measurement methods.

c. Proactive, honest and trustworthy, meticulous and responsible, with strong teamwork spirit.


Embedded Hardware Engineer

Job Responsibilities

1. Design technical solutions for frequency converter/VFD products.

2. Conduct hardware design and debugging for frequency converter/VFD products.

3. Maintain and optimize the hardware of existing products.


Job Requirements

1. Bachelor’s degree or above, major in Power Electronics, Automatic Control or related disciplines. 

2. At least 1 year of experience in embedded hardware design within the industrial control field.

3. Solid fundamentals in analog circuits, digital circuits and automatic control.

4. Familiar with common processors including MCU, DSP and ARM, as well as relevant electronic circuit design and testing methods.

5. Familiar with common PCB design software such as PADS; hands-on experience in hardware circuit debugging.

6. Able to proficiently read English technical documents.