Is Your Workplace Safe? Use the Free Gotcha Stick to be SURE!

Free Gotcha Stick!

safety - Gotcha Stick

STI — Omron introduces the safety Gotcha Stick Safe Distance Scale. This safe distance stick accurately tests the allowable barrier opening size based on the distance from the point of operation. It features English measurements on one side, and Metric measurements on the other.

Although not officially adopted by OSHA, the safety “Gotcha Stick” is based on data from “A Review of Machine-Guarding Recommendations,” by Donald R. Vaillancourt and Stover H. Snook of the Liberty Mutual Research Center for Health & Safety. This data redefines the dimensions of the human arm for the purposes of machine guarding. The resulting new stick has been modified to include openings of less than 1/4 inch over the first 1/2 inch distance.

Guarding machinery by means of hard (fixed) barriers is one of the main ways of protecting personnel from point-of-operation hazards. The safety “Gotcha Stick” is the easiest means of verifying that openings in hard guarding will not allow the point-of-operation to be accessed by the operator.

With headquarters in the heart of Silicon Valley, STI was founded nearly 30 years ago and employs more than 350 people. STI has been selected twice by Forbes and three times by Business Week as one of the “world’s best small companies.” STI’s safety products are used to protect workers around machinery, automated equipment and industrial robots. Their products serve a wide variety of applications and markets, including semiconductor, automotive, electronics manufacturing, packaging and consumer markets.


To request the FREE safety “Gotcha Stick” click here.

Motion Control – Custom Linear Mechanisms – Aperture Stage

Motion Control – Custom Linear Mechanisms …

Welcome to Where Precision Is.  You Can Turn to Steinmeyer for Design and Assembly of Custom Linear Mechanisms for your Precision Positioning Systems
Modern mechatronic systems consist of numerous precision components that must be assembled in complex configurations. Here, every detail counts.Steinmeyer Mechatronik, a division of August Steinmeyer GmbH, offers design and assembly services for a variety of demanding applications.We have deep experience in medical devices, laboratory instrumentation, optical inspection & semiconductor positioning. Our engineers can implement your finished design or optimize your concept.

Motorized Aperture Stage

Highest precision and compact design

The aperture control is used to adjust a pass-through window for a power laser and makes it possible to confine a laser beam to any rectangular format. The pass-through window is formed by means of four individual apertures, which are positioned by two drives. The height and width of the window can be adjusted almost infinitely from fully closed up to a size of 25 x 25 mm (maximum open); the smallest adjustment step is 50 nm. The beam center is fixed and cannot be changed.

Driven by DC motor and precision spindle with belt deflection

Since the pairs of individual apertures must be moved synchronously to adjust the pass-through window, two individual apertures each are moved by one spindle. The aperture control is driven by a DC motor and a precision spindle with belt deflection – a design with advantages: Owing to right-hand and left-hand threads on one spindle, two counter-rotating movements can be generated with one motor. In addition, the flat design requires only a short installation length in the optical beam path. Since the pairs of individual apertures must be moved synchronously to adjust the pass-through window, two individual apertures each are moved by one spindle. In this process, the parallelism of the apertures that are arranged on opposite sides deviates only by a maximum of 10 µm.

Trust Steinmeyer With Linear Mechanism Solutions:

    • We can assemble custom linear mechanisms of all sizes – from miniature actuators using 3 mm linear rails, to 3 m long lifting mechanisms.
    • As an added value, our engineers will offer innovative ideas for optimizing your design.
    • We can quote a completely assembled module, including sourcing of key components!
    • We offer our customers the advantage of a close working relationship, enabling us to provide you with the best possible solution to meet your needs.

Contact Person for Custom Linear Modules

Bruce Gretz

Phone: 781-273-6220

Bruce Gretz   bruce.gretz@steinmeyer.com

About Steinmeyer

In the realm of linear motion control, Steinmeyer is synonymous with precision, innovation, and exacting standards of quality. We are the world’s longest continuously-operating manufacturer of commercial ball screws, our main product line. As an added value, we offer customized linear modules from our highly innovative and experienced Mechatronik division. Designed and manufactured in Germany, our products are used globally in precision positioning for medical devices, lab instruments, and other mechatronic applications. Steinmeyer engineers will work closely with you to customize our offering to deliver a solution that meets your technical requirements and budget.

For further information on Steinmeyer’s extensive product portfolio, call 1-781-273-6220 or visit Steinmeyer at: www.steinmeyer.com/en/steinmeyer

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Motion Control – Need help coupling two parallel shafts? We offer a full family of Power-On Clutches!

Motion Control – Power On Clutches
Motion Control - Power On Clutches

 

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Vaughan, Ontario, Canada — Motion Control Components — Power-on Clutches are used to couple two parallel shafts. The armature hub assembly is mounted to the same shaft as the rotor assembly. The armature hub accommodates a pulley, gear, sprocket, etc., to transmit torque to the second shaft. The field assembly is mounted on the shaft and retained by a loose-fitting pin or bracket through the anti-rotation tab.

Typical Applications of Clutches include:

  • Packaging Machinery
  • Medical Equipment
  • Conveyors
  • Postal Sorters/Readers
  • Document Feeders
  • Textile Equipment
  • Mobile Power Equipment
  • Copiers/Printers

Electromate offers a full family of Power-On Clutches, from Inertia Dynamics, for most applications. All Inertia Dynamics clutches are recognized by Underwriters Laboratories to both U.S. and Canadian safety requirements.

Information on the Power-On Clutches from Inertia Dynamics can be viewed at:https://www.electromate.com/products/power-transmission-mechanical-products/clutches/.

About Electromate:

Electromate’s Core Purpose is to help Manufacturers build better machines using differentiated automation technology. They specialize in Robotic and Mechatronic Solutions for the Industrial Automation marketplace. Respected by customers as a premiere source for High Performance Automation and Motion Control Components & Systems, Electromate® specializes in AC & DC Servo and Stepper Motors & Drives, Motion & Automation Controllers, Positioning Systems & Actuators, Feedback Devices, Gearing Products and HMI’s & Operator Displays, all supported via extensive product selection, just-in-timedelivery, dedicated customer service and technical engineering support.

More on Electromate can be found at

Website: http://www.electromate.com

LinkedIn: https://www.linkedin.com/company-beta/209277/

Twitter: https://twitter.com/Electromate

Facebook: https://www.facebook.com/electromateindustrial/

Blog: https://electromate.wordpress.com/

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To see all of Electromate’s Products and Application Stories featured on MotionShop.com, enter electromate in the Google custom search box (upper left, above)

For further information on this new product or others in our extensive product portfolio, call 1-877-SERVO99 (737-8699) or e-mail Warren Osak at sales@electromate.com or visit Electromate at: www.electromate.com

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Motion Control – Measure Very Small Angular Displacements of Very Small Components with Low Cost Digital Autocollimator!

Motion Control – Miniature Autocollimator

OLYMPUS DIGITAL CAMERA

 

Equipment Solutions

The AC201 2 axis high performance angular displacement Digital Autocollimator System from Equipment Solutions, Inc. is a very compact high precision instrument designed to measure very small angular displacements with high sensitivity over distances to 2.0 in. (5.06 cm). The AC201 Digital Autocollimator is therefore ideal for instrumentation, tooling, and OEM manufacturers with requirements for high precision alignment, flatness, squareness of surfaces in relation to each other, detection of angular movement, shaft straightness, motion control, and other orientation measurements. This rugged and compact 1.0 in. x 1.1 in. x 1.3 in. (2.5 cm x 2.8 cm x 3.3 cm), low cost digital autocollimator can interface with a PC.

 

The AC201 Digital Autocollimator has an optical angular range of ±344 arc sec (±100 mrad), and a sensitivity of 0.2 arc sec (1.0 µrad). The laser has a beam diameter of < 0.125 in. (<3 mm) and requiring only a slightly larger reflection surface. Electrical requirements are: +5.0 VDC @ 30 mA. The AC201 Digital Autocollimator can be factory configured with one of several different interfaces including Analog, USB, SPI, or quadrature encoder. The black anodized (per MIL-A-8625C) 6061-T6 Aluminum body has 2x 4-40 mounting holes and integral electronics and connections are via a Nano D9 or USB connector.

Supplied with a Windows® application software and more than 24 ASCII commands for control and operation, the AC201 Digital Autocollimators are able to perform complex data collection and analysis. They are ideal for: Vibration analysis, mechanical and optical alignments, servo control feedback, tip & tilt measurements, settling time and stage damping analysis, and measurements needed in the manufacturing and testing of miniature mirrors and lenses, linear and rotary stages, fiber optic components, robotic components, and medical analytical devices.

 

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Angular Range

Interface Drawings

Downloads

Equipment Solutions, Inc. (ESI) is a provider of engineering and manufacturing services. ESI specializes in the design and production of automation and instrumentation products including motion control components and sub systems. ESI’s products range from galvanometer amplifiers with an integrated arbitrary waveform generator, to high-resolution displacement sensors, voice coil and stepper motor stages, amplifiers and controllers.

For additional information contact Jeff Knirck at Equipment Solutions,Inc. Mailing Address – PO Box 159, Forestville, CA 95436; Shipping Address 6490 Front Street, Forestville, CA 95436; Tel: 408-245-7162, Fax: 408-245-7160, E-Mail: info@equipsolutions.com or visit the Website at http://www.equipsolutions.com

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Motion Control – Innovative End Cap Return Enables Quiet Screws!

Motion Control – Ball Screws!

motion control - ball screw end cap

 

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Question – Can Ball Screws be any quieter?

Answer – YES! The Steinmeyer, “Quiet Series”, Ball Screws featuring innovative end caps reduces noise by 50%!

Woburn, MA – Ball screws with high leads and high linear speeds are notoriously noisy. The loading and unloading of the balls against the return is the main source of noise. With steel balls and steel returns, this cycling can create a loud “whirling” sound at high speeds, especially when using preloaded ball nuts. Steinmeyer has been researching this issue, and recently announced some important results involving process improvements that may yield benefits across most of our product range.

Meanwhile, on the design side, the innovative plastic end caps provide a solution for small diameter screws. As shown in the 3D drawing below, the steel body (blue) has an integrated flange and “through the nut” ball recirculation. The plastic end caps (gray) provide quiet return, and may also include integrated combination wipers (not shown).

Quiet Series screws are designed typically for a lead/diameter ratio greater than 0.5. Due to the high lead, they are especially well-suited for use in high speed pick-and-place actuators. The screws are available in diameters from 5 to 20 mm and leads up to 32 mm! All feature dual start threads, P5 accuracy grade, and ball nuts with zero or minimum axial play. So, if you are running a high-speed application and your current ball screws are too noisy, contact Steinmeyer and ask about our Quiet Series. We may have an ideal solution that gets you running quiet.

To learn more go to: http://www.steinmeyer.com/en/products/drive-technology/

About Steinmeyer

Steinmeyer is the world’s longest continuously-operating manufacturer of commercial ball screws. In the realm of linear motion control, our company has become synonymous with precision, innovation, and exacting standards of quality.

Steinmeyer’s extensive product line is used widely in drive systems for industrial machines as well as precision positioning in optical instruments, medical devices, and other mechatronic applications.

Contact Steinmeyer for further information on their extensive product portfolio:

781-273-6220

infoUSA@steinmeyer.com

Visit Steinmeyer.com

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Motion Control White Paper – Unlocking the Linear Motion Specification Query

Motion Control White Paper

Understanding the specifications needed to properly size my motion control application –  

motion control company H2W Logo

Santa Clarita, CA —– Motion Control Tutorial – Every motion control problem begins with a need to move a certain payload over a certain distance. However, there are many types of moves possible, and determining the right motion control solution may require some calculations to match the specifications found on a given motors data sheet. Most sales engineers will ask you for three basic questions when directing you to the proper motor or motion control solution. What is the stroke or displacement required What is the force or thrust required? At what duty cycle do you plan on operating the motor? Travel Distance The travel distance is the first piece of information needed to unlock any specification, because a solution to move a few microns would utilize different motion technology from an application requiring several meters of travel. In addition to understanding the total travel required, it would be necessary to determine whether the travel is oscillatory, constant velocity, or the motion profile is defined by a pick-and-place application. Oscillatory systems typically will move back and forth at a specific frequency or range of frequencies. While constant velocity systems either need to operate for a known distance or time at a constant velocity, or they need to get a payload up to a velocity, in these cases the distance and time to accelerate up to the velocity needs to be understood and accounted for in the overall displacement. With this information you can determine the acceleration necessary to make the move. To learn more about calculating acceleration you can read our white paper about calculating acceleration for linear motion. Force

The next step is determining the amount of thrust or force required. Force is simply the amount of acceleration multiplied by the mass of the moving object. If the motion is horizontal, this equates to the mass of the payload added to the mass of the moving part of the linear motor or stage and multiplied by the amount of acceleration required by the motion. Vertical applications must add or subtract the acceleration due to gravity depending on the direction of motion.

motion control specification formula Duty Cycle

Finally, how long is power going to be applied to the motor? Many oscillatory systems will be operating continuously, and thus would have a duty cycle of 100%, while other applications will be short bursts of power, 1 second or less, while being off for several seconds, and will have a duty cycle of less than 10%. Duty cycle is defined as the time on divided by the total time per cycle (time on + time off). Depending on the linear motor selected, the amount of force available at a duty cycle of 10% can be as much as 3 times the continuous force rating. This last piece of the puzzle helps break down the necessary components required to properly size any motion control problem.

motion control specification formula - Duty Cycle

Once these three pieces are determined, any application can be sized and verified that it is sufficient based on the specifications found on any standard data sheet.   About H2W Technologies, Inc. H2W Technologies, Inc. is dedicated to the design and manufacture of linear and rotary motion products that are used in the motion control industry. The complete line of linear electric motors includes: Single and dual axis linear steppers, DC brush and brushless linear motors, voice coil actuators, and AC induction motors. Also offered is a complete line of ball screw, lead screw and belt driven positioning stages. Other motion control products include: Limited angle torque motors for compact, limited angular excursion rotary servo applications, 3 phase brushless rotary servo motors with matching digital servo amplifiers and permanent magnet linear brakes for fail-safe, zero power braking for baggage handling and people moving applications as well as amusement park rides. With over 75 years combined experience in the linear and rotary motion field, the H2W Technologies team of engineers offers the optimal solution to the most demanding motion control, requirements. For other Motion Control Components, Applications, and Technology from H2W Technologies visit: http://MotionShop.com For additional information contact Mark Wilson at H2W Technologies, 26380 Ferry Ct, Santa Clarita, CA 91350; Tel: 888-702-0540, Fax: 661-251-2067, E-Mail: info@h2wtech.com or visit the website at http://www.h2wtech.com  

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Motion Control – CERAMICSPEED Bearing Units Are FDA Compliant!

Motion Control – Ceramic Radial Bearings

motion control radial bearings

 

LM76

E. Longmeadow, MA – LM76 is continuing to expand its FDA compliant radial and linear bearing product lines. CERAMICSPEED Bearing Units are the latest additions. Bearings used in the food and beverage industry have to be reliable, easily cleaned, and require only minimal maintenance. CERAMICSPEED Bearing Units featuring FDA-approved Si3N4 (Silicon Nitride) balls have extremely long service life as Si3N4 balls are 2 times harder than steel balls and 4 times smoother. This means, CERAMICSPEED Bearing Units handle higher loads with less friction, resulting in longer life of the balls and the race. Balls made from Silicon Nitride do not change their shape under load and are not subject to spalling which can contaminate the foods or beverages being processed. They are also very tolerant of temperature extremes (-30OC to 100OC) and thermal shock.

CERAMICSPEED Bearing Units have also been designed with rounded surfaces and are then covered with polyurethane to create an smooth impenetrable surface where debris, bacteria, water and other liquids cannot collect. Available in standard styles and sizes, these low maintenance bearings are shipped lubricated with and FDA approved grease or with a proprietary SLT lubricant created to be extremely durable and maintenance free for extremely harsh environments.

About LM76

Founded in 1976, LM76 has been a leading designer/manufacturer of linear bearings, slides and linear motion systems. LM76 is renowned for its industry leading Minuteman PTFE Composite linear bearings. LM76 is a leading supplier of precision linear shafting: RC60, 300 Series Stainless Steel, and ceramic-coated aluminum shafting. LM76 also offers several FDA/USDA compliant linear bearings and slides for the food processing, pharmaceutical, medical, and packaging industries.

For additional information contact Mike Quinn at: LM76, 140 Industrial Dr., E. Longmeadow, MA 01028; Telephone: 413-525-4166, Fax: 413-525-3735 or E-Mail: mquinn@lm76.com or visit the website at http://www.lm76.com


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Motion Control ServoStep Integrated Stepper Motor in size NEMA 17, torque up to 0.8 Nm!

Motion Control Integrated Step Motors

motion control integrated stepper motor

Motion Control - Electromate-Logo

 

Vaughan, Ontario, Canada — Motion Control Components — JVL Industri Elektronik A/S, one of the world leaders in the field of integrated servo – and stepper motors introduces a new compact and slim stepper motor. The new ServoStep integrated stepper motor series MIS171 to MIS176 have a NEMA 17 42×42 mm flange and include controller with 6 different industrial Ethernet protocols, absolute multiturn encoder, closed loop and M12 connectors. This new motor family is based on the latest microprocessor and cooling technology and an advancement compared to previous designs.

All the necessary electronics in a stepper system are integrated in the motor itself and are similar to the concept used by other JVL motors, making it very easy to use in all kind of motion control stepper or servomotor applications. The motor contains everything needed to solve a modern control task, either as a stand-alone with own easy programmable motion controller or controlled from an external PLC or PC. 8 I/O points can be individually configured as digital input, digital output or analogue input. Modbus RTU or CANopen provide easy connections to a PLC or HMI. An ActiveX/OCX driver is available to make simple interface to LabView, Excel, VB or other Windows-programs. Up to 254 axis can be connected on the same RS485 bus.

Key features:
  • Industrial Ethernet. 6 Protocols 
  • Very high motor power and torque
  • Closed-loop operation with current control 
  • Absolute multiturn encoder
  • Safe Torque Off (STO) input
  • High resolution 409600 cnt/rev.
  • Speed 0-3000 in 0.01RPM steps
  • Wide supply range 7-72 VDC
  • Protection class up to IP67
  • M12 or M23 connectors
Motion Control Industrial Ethernet: 

Profinet, EtherCAT, Powerlink, EtherNet/IP, Modbus TCP or SERCOS III are available and for EtherCAT and SERCOS III synchronization and drive profiles are available. MACtalk can use Ethernet for commissioning the motor so no need for RS232/RS485 converter or additional cables. The motor has the ability to be upgraded with other protocols or newer versions of the same protocol at any time Because of the upgradeability, the JVL Industrial Ethernet module is also ‘future proof&#39; as newer versions of the protocols will always fit into the design. The motor is equipped with two Ethernet connectors and a built-in switch, enabling line topology without any extra expensive hardware. Several LEDs, enabling technicians and operators to get a quick status overview.

Motion Control Motor range:
  • MIS171 with 0,15 Nm, length 70,5 mm. 5mm shaft 
  • MIS173 with 0,26 Nm, length 83,5 mm. 5 or 6,35mm shaft
  • MIS176 with 0,80 Nm, length 104,3 mm. 8 mm shaft

The motors can be operated as stand-alone units or controlled from a PLC or PC. The 8 I/Os can be individually configured as digital input, digital output or analog input. As standard, it is possible to communicate with holistic systems via for example Modbus RTU or CANopen. The MAC motor standard protocol that is also supported makes it possible to connect up to 254 other JVL integrated motors. The MIS17 series allows connectivity to all industrial Ethernet interfaces such as Profinet, EtherCAT, Powerlink, EtherNet/IP, Modbus TCP and SERCOS III.

Motion Control Interface: 
  • Industrial Ethernets Profinet, EtherCAT, Powerlink, EtherNet/IP, Modbus TCP and SERCOS III
  • CANopen DSP402 and DS301
  • Pulse/Direction mode for electronic gear
  • High speed position capture
  • ActiveX/OCX driver as well as JVL MacTalk Protocol
  • Strong graphic programming with + – * / calculations and advanced features
  • SSI interface for external linear or rotary absolute encoders
  • External encoder for dual closed-loop. 
  • RS485 up to 921 kbit and Modbus RTU
  • RS422 and RS485 for encoder I/O and connection to external HMI, PLC or encoder
  • Point-to-point or multi-axis operation with up to 254 JVL motors on the same RS485 bus
  • Wireless Industrial Ethernet through Bluetooth or WLAN
Motion Control Motor specification: 
  • Built-in PLC with 8 DIO, 24V or 0-5V (12bit) analog input with advanced filtering
  • Speed-precision 0.01 RPM. Acceleration-precision 1 RPM / sec.
  • Absolute multi-turn encoder
  • Built-in encoder for closed loop and stall detection and control 
  • Wide supply range of 7-72 VDC provides high torque at high speeds
  • Dual supply maintain position values etc. in emergency situations
  • Motor current 0-4 Amp RMS and 5,6 Amp peak
  • Closed-Loop operation
  • Double shaft and brake option
  • All connections with M12 connectors in IP67
  • Top or rear-end mounted M12 or M23 hybrid connector

For further information on the JVL ServoStep Series Motors, call 1-877-SERVO99 (737-8699) or e-mail Warren Osak at sales@electromate.com or visit Electromate at: www.electromate.com

About Electromate:

Electromate’s Core Purpose is to help Manufacturers build better machines using differentiated automation technology. They specialize in Robotic and Mechatronic Solutions for the Industrial Automation marketplace. Respected by customers as a premiere source for High Performance Automation and Motion Control Components & Systems, Electromate® specializes in AC & DC Servo and Stepper Motors & Drives, Motion & Automation Controllers, Positioning Systems & Actuators, Feedback Devices, Gearing Products and HMI’s & Operator Displays, all supported via extensive product selection, just-in-timedelivery, dedicated customer service and technical engineering support.

More on Electromate can be found at

Website: http://www.electromate.com

LinkedIn: https://www.linkedin.com/company-beta/209277/

Twitter: https://twitter.com/Electromate

Facebook: https://www.facebook.com/electromateindustrial/

Google+: https://plus.google.com/104057418684128701566

Blog: https://electromate.wordpress.com/

Electromate Best Blace to Work

For more information on the “Best Place to Work”CLICK HERE!

To view Electromate’s new corporate video CLICK HERE

To see all of Electromate’s Products and Application Stories featured on MotionShop.com, enter electromate in the Google custom search box (upper left, above)

For further information on this new product or others in our extensive product portfolio, call 1-877-SERVO99 (737-8699) or e-mail Warren Osak at sales@electromate.com or visit Electromate at: www.electromate.com

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Motion Control – Exor’s eX700 series features Harsh Environment Operation!

Motion Control – Harsh Environment Displays

motion control - Exor Display

EXOR has taken the highly successful harsh environment eTOP500 series and updated it with the recently released eX700 series.

 

Servo2Go-Logo

Greenville, DE – Motion Control – This natural progression allows you to combine a high-performance sunlight readable display with state-of-the-art connectivity such as OPC UA. TeX700G Series combine high-performance sunlight-readable display with state-of-the-art connectivity features and top performance in a great design maintaining as a design commitment the fact that the product is likely to be used in environments where the safety of operators is at risk. EXOR has designed the product range as Industrial IoT edge devices combining a powerful controller with networking capability and outstanding communication options including client/server OPC UA. They are the ideal choice for all demanding IIoT edge applications in extreme environments such as marine and process industries.

As with all eX700 Series HMI products have been designed to run the JMobile software.

  • JMobile runtime included. Requires JMobile V2.8 or higher
  • Supports Corvina Cloud secure connectivity with full network separation
  • OPC UA Server and Client
  • Optional CODESYS V3 runtime with choice of EtherCAT, PROFINET, Ethernet/IP and POWERLINK

motion control - components - Exor harsh environment display

Information on the eX700 HMI’s from Exor can be viewed at:: https://servo2go.com/catalogsearch/result/?q=ex700

These and other Motion Control Products are available through www.Servo2Go.com

For further information on this new product or others in our extensive product portfolio, call 1- 877-378-0240 or e-mail Warren Osak at warren@servo2go.com or visit Servo2Go.com at: www.Servo2Go.com


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Motion Control – Case Study – Ball Screws used in Wearable Pumps!

Motion Control – Case Study: Wearable Pumps!

motion control ball screw application

 

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The Next Generation of Intelligent Balloon Catheters Depend on Novel Designs of Ball Screw Driven Pumps

Woburn, MA –Motion Control Components Ball Screws – Case Study –

Situation:

In the realm of cardiovascular assist devices, recent developments have focused on fully implantable pumps. Among the first was HeartMate, quickly followed by Impella and HeartWare. Fully implantable devices are very expensive to develop and produce. Plus they are limited to patients who can tolerate the highly invasive procedure.

A key development in cardiovascular assist devices would be to combine the less-invasive approach of implantable balloons and external pumps with the high portability and reliability of fully implantable systems. This advance would allow the treatment of a much wider range of patients and conditions. A Steinmeyer customer set out to develop an innovative pump to achieve this advance in an intra-aortic system

 

Challenge:

One of the main technical challenges to this approach is designing a wearable pump that can carefully control the balloon’s pressurization. The pump must meet a demanding combination of performance requirements, including:

  • Precise control of pressure
  • Reversible pressurization
  • Light weight
  • Compact size
  • Quiet operation
  • Continuous performance for at least one year

Meeting these requirements was a significant challenge for their engineers. They built and tested early prototypes using traditional designs such as diaphragm pumps. But this approach required separate chambers for positive and negative pressure. The resulting systems were far too large and heavy. So they were forced to find a new approach.

motion control ball screw medical application

Results:

Their main innovation was selecting a precision ground ball screw as the drive mechanism and pairing it with a custom engineered metal bellows as the pressure chamber. Ball screws deliver exceptional thrust density while enabling high linear acceleration in both the forward and reverse directions. Surrounded by the bellows, this results in an extremely compact and quiet design. Ball screws are also known for their high efficiency (>90%), smooth operation, and long life. Their efficiency enables the use of small motors and low power consumption, which in turn reduce the size and weight of the entire system.

The engineers turned to Steinmeyer to ensure the smoothest running, highest quality ball screw. And they also knew that Steinmeyer was extremely well-qualified to provide technical support through all stages of development. Their system is meeting all of its design requirements and will soon enter late stage clinical trials.

motion control application medical

To Download a PDF of this Case Study Go To – https://ballscrew-tech.com/2017/05/26/wearable-pumps-for-medical-devices-count-on-ball-screws/

 

motion control case study wearable pumps

Future:

There is an emerging trend in the development of balloon catheters to serve cardiovascular applications. Intelligent balloon catheters may one day be key to innovation. These devices will use flexible sensors and electronics along the catheter for data collection and therapeutics. They will also incorporate balloons to apply mechanical force in the heart and arteries. Ball screw driven pumps will support these future systems as well.

About Steinmeyer

Steinmeyer is the world’s longest continuously-operating manufacturer of commercial ball screws. In the realm of linear motion control, our company has become synonymous with precision, innovation, and exacting standards of quality.

Steinmeyer’s extensive product line is used widely in drive systems for industrial machines as well as precision positioning in optical instruments, medical devices, and other mechatronic applications.

Contact Steinmeyer for further information on their extensive product portfolio:

781-273-6220

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Steinmeyer Ball Screw Resource Center

 

Other Interesting Case Studies from Steinmeyer:

For the Case Study “Custom Linear Modules for Lithography Masking” CLICK HERE

For the Case Study “Pipetting” CLICK HERE


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