Vacuum motors produced with extra care

Servotechnic has announced the release of the Lin Engineering 1.8 degree, Nema 11 Vacuum Motors.

Servotechnic has announced the release of the Lin Engineering 1.8 degree, Nema 11 Vacuum Motors.

The 211 vacuum rated series motors are capable of up to 16 oz-in of holding torque depending on stack size and are ideal for commercial grade vacuums of 10 Torr to 10 Torr.

The Nema size 11, 1.8 degree motor measures a mere 1.1in square and is available in three lengths; the 211-13 is 1.24ins, the 211-18 is 1.75ins and the 211-20 is 1.99ins.

It is claimed to provide high torque in a small package.

The 211-13 produces 9.2 oz-in of holding torque; the 211-18 produces 13.7 oz-in of holding torque; and the 211-20 produces 16.6 oz-in of holding torque.

In order to make the motors vacuum rated, Lin Engineering said it ensures that all of the special handling and parts necessary are used in the manufacturing process.

First of all, all paint and oils are removed from the motor.

Next, high temperature windings are utilised as well as Teflon leads.

Lastly, depending on the rating of the vacuum environment, either no-lube stainless steel bearings or special-lube stainless steel bearings are use.

The company added that during all of the manufacturing process latex gloves are worn to insure that no residue from human touch is left behind on the motors.

All of the above special parts and handling ensure that limited outgassing and contamination will occur.

Applications include semiconductor, photonics, life sciences and specialist laboratory automation.

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