How Is The Accuracy Level of Flat Bed CNC Lathe Divided?

The accuracy level classification of Flat Bed CNC Lathe is mainly based on the following standards:

According to the national standard GB/T 17421

Ordinary level: The positioning accuracy is generally within ± 0.03mm - ± 0.05mm, and the repeated positioning accuracy is within ± 0.015mm - ± 0.025mm. Suitable for mechanical processing with general precision requirements, such as rough machining and semi precision machining of ordinary mechanical parts, it can meet the production needs of most conventional industrial products.

Precision level: The positioning accuracy can usually reach ± 0.01mm - ± 0.03mm, and the repeated positioning accuracy is within ± 0.005mm - ± 0.015mm. It can be used for machining parts with high precision requirements, such as automotive parts, precision molds, etc., ensuring that the dimensional accuracy and form and position tolerances of the parts are within a small range.

Ultra precision level: The positioning accuracy is less than ± 0.01mm, and the repeated positioning accuracy is below ± 0.005mm. Mainly used in aerospace, defense, optics and other fields that require high precision, for processing key components such as aircraft engine blades, precision optical lenses, electronic chips, etc.

According to the international standard ISO 230

ISO 230-1 Geometric Accuracy: including straightness, flatness, perpendicularity, parallelism, etc. If the straightness is within each meter of travel, the ordinary grade may be between 0.05mm-0.1mm, the precision grade may be between 0.02mm-0.05mm, and the ultra precision grade may be less than 0.02mm.

ISO 230-2 positioning accuracy and repeatability accuracy: The positioning accuracy is around ± 0.05mm for ordinary level, ± 0.02mm - ± 0.03mm for precision level, and within ± 0.01mm for ultra precision level; The repeatability accuracy is around ± 0.03mm for ordinary level, ± 0.01mm - ± 0.015mm for precision level, and within ± 0.005mm for ultra precision level.