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Nuriplan subsidiary, Korea's leading seismic isolation device manufacturer

Successfully commercialized seismic force attenuation device using purely domestic technology

Applied its own seismic isolation technology to LG CNS data center, etc.

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Jinsook Park

Approved 24.10.02 16:21

 

As the construction permit for the Shinhanul Nuclear Power Plant Units 3&4 and the construction order for the Czech Nuclear Power Plant become visible, expectations for domestic suppliers of nuclear power plant-related parts are growing within the industry. Given that seismic design is crucial for ensuring the safety of nuclear power plants, companies that manufacture seismic isolation products—key devices for seismic design—are attracting attention.

 

According to the industry on the 2nd, UnisonHKR, a subsidiary of KOSDAQ listed company Nuriplan, is a leading domestic seismic isolation manufacturing company that established its own technology research center in 1998 and successfully commercialized ‘seismic force damping devices’ with purely domestic technology.

 

A strong seismic design against natural disasters such as earthquakes is essential for nuclear power plants, and seismic isolation absorbs seismic energy and reduces vibrations transmitted to the structure. The core technology of seismic isolation devices is the ‘lead seismic isolation body’ composed of laminated rubber and lead, which is a ‘seismic force damping device’ called the ‘Lead Rubber Bearing (LRB)’.

 

LRB, which is a special mixture of natural rubber and lead, is installed at each pillar of a building and must have an insulation function that reduces seismic vibration transmitted to the superstructure, a support function that supports the superstructure, a damping function that attenuates seismic input loads, and a restoration function that returns the structure to its original position after an earthquake. Compared to general earthquake-resistant structures, it has excellent performance in reducing earthquake damage and is applied to major national facilities, data centers, airport control towers, and nuclear power plants.

 

Unison HKR has a factory site of approximately 100,000㎡ at its Cheonan headquarters, and with differentiated technology, it can manufacture seismic isolation products of various sizes from 256 to 1,500mm in diameter. It also has the largest seismic isolation bearing tester in Korea, with a capacity of 30,000kN (kilonewton).

 

UnisonHKR's seismic isolation structure has been applied to domestic data centers and security facilities such as LG CNS Data Center, IBK Hanam Data Center, NH Integrated IT Center, BNK Financial Group IT Center, KDB Industrial Bank Data Center, KB Kookmin Bank Integrated IT Center, Ulju Radiation Emergency Command Center, and Gimpo Gochon Hyundai Hillstate. In addition, UnisonHKR's seismic isolation devices are also supplied to Doosan Energy, etc.

 

In addition to seismic isolation devices, UnisonHKR produces pipe supports used in combined thermal power plants, nuclear power plants, petrochemical plants, LNG ships, etc., and is the No. 1 company in Korea with a 25% market share, exporting to over 30 countries around the world.

 

Its main products are expansion joints and spring hangers that absorb the shrinkage and expansion of pipes due to changes in fluid temperature and pressure to protect plant pipes. It has been supplied to global shipbuilders such as Hanwha Ocean and Mitsubishi Heavy Industries, and has secured many excellent domestic and international customers.

 

In particular, it holds KEPIC (Korea Electric Power Industry Code) certification, which is essential for winning domestic and international nuclear power projects, and ASME (American Society of Mechanical Engineers) certification.

 

The industry expects that if UnisonHKR wins orders for Shin Hanul Units 3 and 4 and the Czech large-scale nuclear power plant project based on its differentiated technology and quality related to nuclear power generation, and partnerships with major domestic and international clients, it will catch two birds with one stone: growth and profitability.

 

A UnisonHKR official emphasized, “The nuclear power business environment is improving due to the resumption of construction of Shin Hanul Units 3 and 4 and expectations for additional exports due to the Czech nuclear power alliance,” and “We will actively pursue orders related to nuclear power projects to create a safe nuclear power ecosystem.”​