SPIRA® sta­tors for drill motors 

Spi­ra® sta­tors offer many advan­tages over con­ven­tion­al sta­tors. In par­tic­u­lar, the high­er torque for the same sta­tor length, the uni­form swelling in aggres­sive drilling flu­id media and the uni­form ther­mal expan­sion ensure sig­nif­i­cant­ly high­er effi­cien­cy and longer durability. 

Spi­ra® sta­tors there­fore drill to the required depth even in dif­fi­cult appli­ca­tions with­out hav­ing to be replaced in between, thus sav­ing a lot of time and mon­ey. The avail­abil­i­ty of dif­fer­ent elas­tomers such as NBR, NBR-HR, HNBR and FKM for our sta­tors offers opti­mal adap­ta­tion pos­si­bil­i­ties for your applications.