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Tin-Can Step Motors (also known as Can-Stack Step Motors) are 2-coil permanent magnet motors. When poles are magnetized by electric pulses applied to the coils, they attract the permanent magnet rotor core in reverse polarities, thereby starting rotation. Rotation can be continued by alternately switching the direction of applied electric pulses to change polarities. Rotating in proportion to the number of pulses sent to the motor, the tin-can stepper motor is frequency synchronized and can change speed depending on the frequency of the pulse signal. When supply of pulses to the coils is stopped, the poles are magnetized by the rotor core and the rotor stops rotating at the position where the poles and the rotor core are attracted to each other. There are two types of coil arrangements in tin-can step motors: bipolar and unipolar.
Tin Can Rotary Stepper Motors from Haydon Kerk
Haydon Kerk's tin-can rotary motors are built to provide exceptionally high torque to size ratios. By utilizing a patented enlarged rotor with low inductance coils, the motors provide superior torque and continuous, reliable high performance. Some typical applications for Haydon Kerk rotary motors include medical equipment, bar code scanning devices, printing equipment, laboratory instrumentation and other high torque, small space mechanisms. Click on the following link to view the datasheet on Haydon Kerk's family of Tin-Can Rotary Stepper Motors
The foundation of Nippon Pulse Motor, the tin-can stepper motor (PF Series) is their most recognizable product. An innovator in the motion control industry, Nippon Pulse has been manufacturing the rotary tin-can stepper motors since 1965. A conventional, magnet-driven rotary stepper motor, the PF series offers a high-performance yet cost efficient solution. Click on the following link to view the datasheet on Nippon Pulse's family of Tin-Can Rotary Stepper Motors
Nippon Pulse's family of Tin-Can Rotary Stepper Motors includes: