An innovative miniature driver that can be retrofitted to a stepper motor's rear flange has been introduced by Astrosyn International Technology. This elegant device frees up space usually taken by conventional drive systems - it also reduces cabling.

Customers of motion control specialists Astrosyn International Technology can now buy almost 70 ex-stock products online, following the addition of an e-commerce function to the company's revamped web site. Products include stepper motors, drives and accessories, industrial dc motors, and special ac and dc motors.

The MY4304-01 three phase stepper motor from Astrosyn International is suitable for the pan and tilt control of stage and other entertainment lighting. Unlike the more common two or four phase stepper motors, the three phase design is capable of exceptionally quiet operation with a low level of vibration, making it ideal for this type of application.

A range of stepper motors with IP68 protection ratings has been introduced by Astrosyn International Technology. Intended for operation in harsh, wet environments, the F87 series have been tested underwater to a pressure of 1 bar - corresponding to a water depth of 10 m.