Portescap in Motion

High Speed Linear Actuators

Posted by Sandeep Cg

Mar 29, 2017

An in-depth discussion on high-speed linear actuators that use disc magnet motor (DMM) technology, and their uses in low-load applications such as sensor movement, positioning a laser beam, pick-and-place of electronic components, movement of XY tables, and other applications. Quiet operation and lower operating and maintenance costs make electric DMM linear actuators a viable option for these high-speed, low-load applications.

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Topics: Others

MotionCompassTM – Selecting the “right” motor for your application

Posted by Vinicius Cabrera

Jun 15, 2016

 

Are you an original equipment maker [OEM] looking for a specific motion control solution for your end application? Portescap caters to miniature motor requirements of a wide range of medical, diagnostic and industrial applications. This ranges from medical and surgical tools, lab automation equipment, dental drills and textile yarn guides to humanoid robots, surveillance camera systems, aircraft seat actuation, tattoo machines, and more. We help OEMs select the “right” miniature motor to power their applications. Our solutions include miniature dc and bldc motors, miniature can stack steppers and disc magnet motors as well as linear actuators with gear composite. These are usually customized to varying degrees, to suit requirements of the end application.

Since our motors are exposed to diverse operating conditions, selecting the right motor can be a daunting task. Certain applications need motors that can operate at extreme temperature ranges, whereas in some cases, OEMs are looking for motors with ability to withstand shocks and vibrations. Parameters like “length”, “diameter”, “torque”, “speed”,  “power density” etc  play an important role in motor selection. Thus, we’ve provided our clients and prospects with an online platform - MotionCompassTM, that helps them select the best-suited motor for their application.

 

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Topics: Medical & Diagnostics, Automation, Others

Understanding Speed-Torque Characteristics of Miniature DC Motors (Part 2 of 3)

Posted by Sandeep Gandre

May 23, 2016

Read: Part I

[continued...]

Now we shall consider the motor speed against an application. We need a motor such that higher limit of its permissible speed should be higher than the operating point of the application. Maximum permissible limit corresponds to upper limit of operating range diagram. This speed limit can be found in our catalogue.

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Topics: Medical & Diagnostics, Automation, Others

Understanding Speed-Torque Characteristics of Miniature DC Motors (Part 1 of 3)

Posted by Sandeep Gandre

May 17, 2016

Portescap offers miniature motor technologies to solve the motion needs of end markets. Our typical markets can range from motors for medical devices to various industrial applications. We serve our customers through innovative product technologies encompassing brushless miniature DC motors, brush DC & can stack motors, disc magnet motors and stepper linear actuators, to optimize their application performance.

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Topics: Medical & Diagnostics, Automation, Others

Miniature Disc Magnet Motors for Textile Applications

Posted by Norbert Veignat

Mar 14, 2016

 

In the 80’s, Portescap was mainly involved in the watch industry providing small stepper motors to be used in watches and clocks. Using rare earth magnets, we then designed the first micro motor with a multipolar structure. Such a design avoids additional pole shoes on the rotor to create fewer steps per revolution. Later, Portescap expanded its expertise to include bigger motors for industrial applications [< 100 W].

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Topics: Automation, Others

Miniature Motors for Biopsy Systems and Radiation Treatment

Posted by Portescap

Feb 15, 2016

Miniature Motors for Biopsy Systems and Radiation Treatment

Precision electric motors are spinning the way to improved developments in cancer management.

“Oncology” is the field of study and treatment of tumors. By advancing treatments in biopsy, imaging, and radiation, miniature electric motors are helping to improve the detection and treatment of cancer. As oncology techniques continue to become less invasive, more accurate and effective, the use of miniature electric motors by medical OEMs will remain a driving force in evolution of cancer management.

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Topics: Medical & Diagnostics, Others

Miniature Motors for Valve Actuation

Posted by Anant Bhalerao

Jan 27, 2016

An expansion valve is a flow-restricting device present in a refrigeration system that causes a pressure drop of the working fluid. The valve needle remains open during steady-state of operation. The size of the opening or the position of the needle is related to pressure and temperature of the evaporator. When set and controlled properly, an expansion valve will keep the evaporator active throughout its operation.  There are two types of electric expansion valve technologies popular in the market place - pulse width modulated valves, and stepper motor driven valves.

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Topics: Aerospace & Defense, Instrumentation, Others

Stepper Linear Actuators Simplified

Posted by Portescap

Oct 27, 2015

What is a “linear actuator”? It is actually a simple stepper motor with a built-in leadscrew to directly convert rotary motion in form of discrete steps, into linear motion. Achieving linear motion internal to the motor eliminates the cost of designing a separate transmission mechanism in the system.

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Topics: Security & Surveillance, Medical & Diagnostics, Instrumentation, Automation, Others