Products and engineering services

Technologies to support stable plant operations

  • Total support from the basic design to O&M of power plants Total support from the basic design to O&M of power plants
    Total support from the basic design to O&M of power plants
  • Safe and secure plant design
  • Detailed design with our abundant knowledges
  • Advanced planning for construction and work
  • Technologies to support stable plant operations
  • We promote nuclear engineering business at worldwide locations for safe and secure energy for the future.
    We promote nuclear engineering business at worldwide locations for safe and secure energy for the future.

We provide maintenance services that contribute to long-term stable plant operations and improvements on the energy availability factor.

Identify a plant status and detect errors early.

Underwater inspection robot

Its small body allows it to inspect narrow regions.

Underwater inspection robot

Ultrasonic Vibrometer

The meter achieves high accurate diagnostics with ultrasonic waves.

Diagnostic device for motor-operated valves and valve stems

Diagnostic device for motor-operated valves and valve stems

Ultrasonic waves and electric current and voltage sensors detect the degraded performance of valves.

Monitoring/inspection technologies to fully understand the plant's operation status and identify abnormalities in their early stages

Repairing and reinforcing technologies

Underwater laser beam welding equipment

Underwater laser beam welding repairs reactor pressure vessels and nozzles, etc.

Underwater laser beam welding equipment

Articulated arm-type equipment

The equipment makes repairing tools accessible to the bottom sections.

Articulated arm-type access equipment

Preventive maintenance technologies for a long operation

Laser peening technology

The laser peening technology improves residual stresses on the material surfaces.

Laser peening technology

Overhaul in regular inspections

Planning outage maintenance in advance based on customer specifications and our proposal for improvements (removing FMCRD).

Overhaul at regular inspections

Improving performance for upgrade and replacement technologies

Turbine performance improvement

The plant output is improved by the replacement of the turbine.

Improving the performance of the turbine

Electrical generator repairing

Rewinding the stator coil makes the generator's performance secure, which achieves safe operations.

Overhaul in periodical inspections