In general, 2-position pneumatically operated rotary actuators rotate their payloads at rotating angles of 90 or 180 degrees, while 3-position and infinitely adjustable units are also available.
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- 通常,2个位置的气动旋转执行机构可以在90度或者180度的范围内旋转工作负载,不过也有3个位置和无级调速的气动旋转机构。