DOOJIN | 두진

Company Name	DOOJIN
Booth Number	G115
Home Page	www.doojin.com
Main Phone	031-352-3001

Company Introduction

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Introduction of item

1. vacuum insulated pipe

Vacuum Insulated Pipe (VIP)

A vacuum insulated pipe is a specialized piping system designed for transporting various high-purity liquid gases (such as LN2, LO2, 
LAR) from storage tanks to end-use equipment. The pipe features an inner and outer pipe, with insulation material placed in between, 
and is then vacuum-sealed to provide thermal insulation. This advanced technology minimizes losses due to vaporization during the 
transport of liquid gases.

Doojin Co., Ltd. has successfully developed the first domestically-produced vacuum insulated pipe in Korea, achieving the localization 
of this technology, which was previously entirely dependent on imports. Additionally, as the official agent of CHART (USA), Doojin Co., 
Ltd. supplies world-class products and is recognized for its technical expertise in the field of cryogenics, backed by extensive 
experience.

2. cryogenic cooler

A cryogenic cooler is a device designed to maintain extremely low temperatures, commonly used in superconducting experiments, 
quantum computing, aerospace, and medical fields. This cooler plays a crucial role in maintaining or maximizing the performance of 
systems that require cryogenic cooling.

1) Stirling Cooler (Cooling capacity: approximately 50K)
Integrated compressor design allows for miniaturization, with relatively low noise and vibration. / Requires minimal maintenance.
2) G-M / Pulse Tube Cooler (Cooling capacity: approximately 4K)
Features either a one-stage or two-stage structure, offering high cooling performance. / Reliable and widely used.
3) 1K to mK Cooler
Sorption type cooler used in conjunction with other cryocoolers.
Utilized when cooling close to absolute zero is needed, and it has a small size.