HaydonKerk Motion Solutions offers 21000 series (Size 8) linear actuators which occupy a minimal 21mm square space and include numerous patented innovations that provide customers high performance and endurance in a very small package. The 21000 series is available in three designs – captive, non-captive and external linear versions. They are available in a wide variety of resolutions ranging from 0.0015mm to 0.04mm per step and deliver thrust of up to 4.5kg without compromising long life or accuracy. These models can also be micro stepped for even finer resolution. The use of proprietary manufacturing processes which incorporate engineering thermoplastics in the rotor drive nut and a stainless steel acme lead screw allows the motor to be highly efficient and durable. Typical applications include medical equipment, semiconductor handling, valve control, X-Y tables, hand held instruments, and many more.