신우개발주식회사

Ultrasonic test :
Status of steel material (heat treatment), Check for crack

• Scope of inspection

  - Tower crane turntable bolt, Mast connection bolt, Hook connection part
  - Construction lift pinion shaft, etc.
  - Construction machinery such as movable crane, Turntable ring gear bolt, etc.
  

Magnetic particles test (MT):
Inspection of steel and welded part crack

• Scope of inspection

  - Welded points at major structural parts of tower crane (Mast, Jib, Turntable, Cabin, etc.), Wall bracing welded part, Hook, etc.
  - Construction lift transport equipment, Mast, Wall tie, Erection crane, etc.
  - Construction machinery such as mobile crane, Jib, Vehicle body, Outrigger, Hook, etc.
  - Lifting box, etc. Welded part of boarding facility, etc.