Enclosed Vibration Motors :: Uni Vibe™ Range

Overview

Enclosed vibrator motors are designed without any external moving parts, and also include screw holes on the front most case plate.

This makes it particularly convenient to mount them on rigid surfaces such as bulkheads and ruggedised / industrial control panels or dashboards. 

Of course, they are also ideal for applications where standard eccentric rotating mass (ERM) vibration motors are unsuitable - for example in environments where there are often particles or debris.

Precision Microdrives currently stock 24mm enclosed vibration motors and 12mm enclosed vibration motors.

Typical applications for enclosed vibration motors include:

• Vibration alerting, especially for industrial control panels,
• Sorting machines,
• Mixing Powders and emulsifying liquids,
• Aiding the movement of material down chutes, hoppers or through a funnels,
• Other applications which require a vibration motor with protected moving parts.

Enclosed Vibrating Motor Design

Enclosed vibration motors have an lengthened case, allowing the eccentric mass to be fitted to the motor shaft within the case.

Similar to encapsulated vibration motors, the casing allows enclosed vibrating motors to be used in environments that are unsuitable for standard ERM motors, typically where the eccentric mass may be impeded from rotating. The internal motor design is the same as our standard DC vibration motors, so you can expect the same high performance.

An advantage to enclosing the motor, aside from having no external moving parts, is the increased resistance to dirt and and larger particles compared with regular DC vibration motor designs. 

Enclosed motors differ from encapsulated motors because they do not have sealed and water resistant casings. This means that they are not suitable for over-moulding. 

However, one of their biggest benefits is that their encasing includes mounting fixtures to easily screw and secure the motor in order to vibrate panels and housings such as a chutes, hoppers or containers.

Help Mounting Enclosed Vibration Motors

Each motor casing has at least two fastening points on the front face, symmetrically opposite about the central motor shaft. The holes are typically metric threads, e.g. M3 for 2.5mm diameter, and allow for easy attachment to flat surfaces particular metal sheeting.

Alternatively, the motors can be mounted in the same way as other cylindrical ERM vibration motors with collets or securing ribs. If care is taken not to allow ingression into the motor case, they can also be secured using strong adhesives, hot glues and epoxies. Please note that adhesives (or any other liquids) cannot be allowed to enter the motor casing under any circumstances.

Enclosed Motor Customisations Available

Our enclosed vibrating motors have small eyelet terminal connectors for easily soldering to flying leads. This allows our customers to freely choose how they want to connect the motor to their drive circuit. However, subject to minimum order quantities, we can produce motors with custom wiring harnesses upon request, including:

• Twisted leads (i.e. intertwining them into a helix shape),
• Alternate lead and strip lengths,
• Connectors (e.g. AVX, Kyocera, Molex, Tyco).

Minimum order quantities do apply for these customisations, but you can read up more about those and learn more about what we can offer in our vibration motor customisations guide.

Enclosed Vibration Motors Summary

Non-covered ERM vibration motors need space for the eccentric mass to move freely and generate vibration. If there is a chance that the offset mass can be obstructed, then enclosed motors are a great solution.

With screw holes in the casing, our enclosed vibrating motors can be mounted in ways that normal vibration motors cannot. They can easily be secured to rigid panels and housing, or they can be used in applications which require increased dust and dirt resistance.

Our enclosed motors are part of our Uni Vibe range, with a variety of customisations available upon request.