
Chongqing Duchin Temperature Instrument has officially released its newly developed Type R Vacuum Feedthrough Assembly (Model: ZJR1AR-K3ACAC) , specifically designed for high and ultra-high vacuum applications. This innovative product ensures electrical isolation and stable temperature signal transmission between the vacuum chamber and the external atmosphere, offering a professional high-temperature measurement solution for industries such as vacuum furnaces, semiconductor equipment, aerospace, and material science research.
Engineered with a premium vacuum sealing structure, the Type R Vacuum Feedthrough Assembly achieves an ultra-low leakage rate of ≤1×10⁻¹⁰ Pa·m³/s, effectively preventing air leakage and signal interference. This ensures long-term, stable operation in demanding high and ultra-high vacuum environments. The assembly comes equipped with a standard green thermocouple connector, supporting plug-and-play installation and standardized thermoelectric signal output. This design minimizes signal attenuation and connection issues, delivering more accurate and reliable temperature transmission.
The product features a metal flange and an integrated stainless steel housing, providing high mechanical strength, vibration resistance, and corrosion resistance-making it ideal for harsh industrial conditions. Backed by Duchin in-house mineral insulated cable production line, the company ensures full-process quality control, from raw material selection to precision machining, guaranteeing product consistency and a long service life. The standard overall length is L=125+100mm, with custom lengths available based on customer vacuum chamber depth and on-site installation requirements for maximum compatibility.
Key specifications include:
- Insulation resistance: ≥100 MΩ (at room temperature, 500V DC)
- Mounting type: Flange mounting
- Connection: Standard thermocouple plug for easy installation and broad adaptability
This vacuum feedthrough assembly is widely used for high-precision temperature monitoring and data acquisition in:
- Vacuum furnaces
- Continuous heat treatment furnaces
- Semiconductor vacuum annealing furnaces
- Aerospace testing equipment
- Industrial high-temperature kilns
- Material science laboratory equipment
Duchin Instrument remains dedicated to the industrial temperature measurement sector, continuously upgrading its vacuum temperature measurement solutions. By offering reliable quality and customized services, we provide cost-effective, integrated vacuum temperature measurement solutions to industrial customers worldwide.
For more information or to request a quote, please contact us today.

