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Robot applications depend on the precision of their primary components. igus GmbH last week said it has developed a new double-shaft stepper motor for its drylin linear technology. The Cologne, Germany-based company said the double-shaft design allows for precise control over linear motion, enabling a range of automation, transfer-station, and format-adjustment applications.

“This design offers greater flexibility in the connection and drive of mechanical components,” explained Rene Erdmann, head of the drylin E business unit at igus, in a release. “We can now drive two mechanical loads, such as two parallel linear axes, with just one motor.”

igus, whose U.S. headquarters are in Rumford, R.I., said its new stepper motor provides an easy introduction to automation for developers, machine builders, and integrators.

igus supports precise, versatile robot applications

Stepper motors move to precise designated positions in millimeter increments, making them suitable for applications requiring accuracy and controlled motion, noted igus. The new double-shaft stepper motor can enhance versatility and performance, the company claimed.

Unlike traditional single-shaft versions, this innovative motor has dual output shafts, igus said. The twin-shaft mechanism enhances precision across an array of automation technologies, it added. It also expands possibilities for linear positioning systems such as drylin from igus.

This saves space and reduces costs because the motor is available at the same price as a single stepper motor, and the user does not have to purchase a second coupling, said igus. The company offers gantry and cartesian robots using drylin linear rails.

One motor for three functions

In conventional double-axis drives, the motor is installed at the side and can cause space problems, explained Michael Rielly, head of public relations and trade shows at igus Inc. By contrast, the double-shaft stepper motor is located between the axes, making optimum use of the available installation space, he said.

Another advantage of the double-shaft stepper motor is that it provides the option of mounting a hand wheel at the second shaft end, according to igus. This allows the motor to also be turned by hand so that users can manually set the zero point of a linear axis, it said.

In addition, users can adjust a self-locking lead screw axis manually by turning the hand wheel, such as in the event of a power failure. This is particularly important in areas such as entrances or doors.

Editor’s note: At the Robotics Summit & Expo, which will be held in Boston, igus will exhibit at Booth 414. The company will also participate in the panel on “Democratizing Automation” at 2:45 p.m. ET on Wednesday, May 1. Register now to attend.

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