Application / Black and bright bar


Product information

Here you can find documents related to our products:

Download catalog
About Black and bright bar

  • Offline inspection: For final quality check after straightening, peeling or polishing using conveyor system
  • Continuous drawing lines: Inline inspection of bars, Ø up to 42 mm (1.65 in)
  • Peeling machines, etc.
  • Bar characteristics: All metals; black and bright bar;  Ø 2-120 mm (0.084¾ in)
  • Inspection equipment: Rotating system for the detection of longitudinal flaws in combination with encircling coil for transverse defects
PRÜFTECHNIK's comprehensive inspection system has proven invaluable to manufacturers of black and bright bar for reliable quality control. The dual inspection strategy provides excellent identification of both longitudinal and transverse defects. The robust rotating system is extremely sensitive to longitudinal cracks and tears while an encircling coil is used to catch transverse flaws.PRÜFTECHNIK offers a series of rotating systems (RS35HSRS65RS130) that cover a wide range of tube diameters.They can be used in conjunction with several of our eddy current inspection systems, depending on individual requirements.

Reated Projects

Butt weld detection

Butt weld detection

Butt welds cannot be identified by simple detectors such as the light barrier or proximity switch. The EDDYSENSOR locates the butt weld using eddy current t

Seamless tubing

  • Inspection: Encircling coil for full-body inspection. For a more thorough inspection, a rotating system is used simultaneously for identifying longitudinal grooves.
  • Production typ

Hot rolled ferritic rod

  • Quality control: Detection of defective areas in test material and assignment of test piece to a quality category 
  • Process control: Identification of defective rolling element

Sensitive bar testing

Application fields

  • Production type: very high quality bars and seamless tubes
  • Materials: round black or bright steel (ferromagnetic); rolled, straightened or sand blasted
  • Diamet