-. Application : Air/Pneumatic cylinders

-. Material : AA6063 TD83

-. Range of product size:

• O.D : 25-170mm
• I.D : 20-160mm
• Innerface tolerance : RZ 3.2

-. Features :

• Roundness of I.D 
  Drawn tube for air cylinder has streight and equivalent round I.D. 
  Tubes have ± 5% of mean wall thickness and equivalent I.D prevent air leakage.
• Roughness 
  Roughnness is an important effect on life time of sealing. 
  We take hard anodizing process for more stable roughness.
• Anodic coating film 
  Thickness of anodic film to increase of roughness is over 25±5m and surface hardness of tubes are over 400Hv.