Roller centralizerThis company produces roller centralizer,it links to sucker rod , the card does not occur anywhere in the sucker rod,resolving the long-standing unresolved wells in Zhongyuan Oilfield partial abrasion, extend tube, rod, pump life and reduce the operating frequency, significantly reduce the cost of crude oil production, but also played the role of scraping wax. first,work principalOur roller centralizers rotate by taking advantage of donkey head of oil sucking machine. so that the location of the wear has not fixed on one point, thus prolong the body time of the wear, but also play a role in scraping wax.second,Performance IndexModelDimensionsRated operating load(kN)Suit to oil pipe inner diameter(mm)Operating temperature°Cfatigue life(time)external diameter of noumenon(W mm)Roller thickness(B mm)Majority external diameter(D mm)Basic dimensionExtremity deviationAxial tension Vertical compress FZ46×¾GL-A(B) 26546±0.13300.450≤140107FZ46×15/16GL-A(B) 327500.7FZ46×11/16GL-A(B) 389801.1FZ58×15/16GL-A(B) 32758±0.15500.762FZ58×11/16GL-A(B) 389801.1FZ58×11/16GL-A(B) 41111001.4FZ70×15/16GL-A(B) 32770±0.15500.776FZ70×11/16GL-A(B) 389801.1FZ70×13/16GL-A(B) 41111001.4FZ70×13/8GL-A(B) 51131201.7FZ70×11/16GL-A(B) 56151602.3