Construction 1. Indicator Position indicator with NAMUR is convenient for mounting accessories such as Limit Switch box,Positioner and so on. ２.Ｐinion The pinion is high-precision and integrative ,made from nickelled-alloy steel,full conform to the lastest standards of ISO5211,DIN3337,NAMUR.The dimensions can be cuwtomized and the stainless steel is available. 3. Actuator Body According to the different requirements,the extruded aluminum alloy ASTM6005 Body can be treated with hard anodized,powder polyester painted (different colours is available such as blue ,orange,yellow etc.),PTFE or Nickel plated. 4.End caps Die-casting aouminum powder polyester painted in different colours,PTFE or Nickel plated. 5.Pistons The twin rack pistons are made from Die-casting aluminum treated with Hard anodized or made from Cast steel with galvanization. Symmetric mounting position,long cycle life and fast operation,reversing rotation by simply inverting the pistons. 6.Travel adjustment The two independent external travel stop adjustment bolts can adjust±5°at both open and close directins easily and precisely. 7.High performance springs Preloaded coating springs are made from the high quality material for resistant to corrosion and longer service life, which can be demounted safely and conveniently to quantity of springs. 8.Bearings ＆ Guides Made from low friction ,long-life compound material,to avoid the direct contact between metals.The maintenance and replacement are easy and convenient. 9.O-rings NBR rubber O-rings provide trouble-free operation at standard temperature ranges.For high and low temperature applications Viton or Silicone. | 
