New VLM Servo Motors for value conscious applications!

motion control Kollmorgen Servo Motor

 

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Greenville, DE —-Motion Control Components – Kollmorgen has launched the VLM servo motor series to fill the gap between stepper and high-performance servo motors. The new VLM series synchronous servo motors offer OEMs, machine builders and end-users, an excellent price-performance proposition in the torque range of 0.5 to 4.5 Nm continuous and 16 Nm peak, with speeds of up to 6000 rpm. They also provide highly flexible configuration, proven quality and high reliability. Hence, they are a very useful solution for many applications where stepper or asynchronous motors are pushed to their limits but the expense and unused dynamics of high performance servo motors is not desirable.

The many standard design and configuration options built into the range allow engineers an optimal solution from the outset, to tailor their applications and machine requirements. Thus, installation time and cost is minimized and the price-performance ratio is further improved. The VLM series motors are available with standard frame sizes of 60 mm and 90-mm or NEMA 23 and 34 in each of the six most popular motor sizes and with a choice of twelve standard windings. The extensive possibilities for shaft and mounting facilitate seamless integration into virtually any system.

Feedback options include Digital Resolver (SFD), resolver, encoder and Hall sensors. VLM motors achieve continuous torque up to 4.5 Nm and peak torque to 16 Nm and can be used in power systems with 230 VAC. And of course, the new motors meet the ROHS Directives for CE and UL certification.

Information on the Kollmorgen VLM Brushless Servo Motors available from Servo2Go.com can be viewed at: https://www.servo2go.com/products/servo-motors-drives/servo-motors/ http://www.servo2go.com/product.php?ID=101027&cat=

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 atwarren@servo2go.com or visit Servo2Go.com at: www.Servo2Go.com

For other Motion Control Components, Applications, and Technology from OES (Optimal Engineering Systems) go to: http://MotionControlBuyersGuide.com

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Motion Control – 0.5 Inch Stroke Voice Coil Motor Features High Force to Size Ratio!

Motion Control Linear Actuator

 

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Van Nuys, CA – Motion Control Components – Moticont’s GVCM-051-025-01 Linear Voice Coil Motor features: High acceleration/deceleration, high speed, high reliability, zero backlash, high accuracy, high repeatability, and a 0.5 inch (12.7 mm) stroke length! Also referred to as an Electric Cylinder, this linear actuator is an ideal low cost, high accuracy replacement for hydraulic and pneumatic linear actuators. This clean, compact, voice coil motor has a high force to size ratio with 5.3 lbs (23.5 N) continuous force and 16.7 lb (74.4 N) of peak force at 10% duty cycle with a housing measuring just 2.00 in. (50.8 mm) dia. x 1.00 in. (25.4 mm) long.

The precision ground 0.1572 (3.993 mm) diameter shaft has an internal thread, and the housing has threaded mounting holes on each end for easy integration into current and future applications. This clean, quiet, efficient, low inertia, brushless actuator featuring an internal shaft and recirculating ball bearing is ideal for: Medical devices, antenna positioning, testing, sorting, assembly equipment, work holding and clamping, scanners and laser beam steering and filtering, laser machining and drilling, wafer handling, optical focusing, and dynamic vibration absorption,. The Moticont’s GVCM-051-025-01 linear voice coil motor can also be ordered as a complete plug-and-play system including a position sensor, and controller.

There are currently 7 series of Moticont’s GVCM motors based on diameter of the motor, and models based on length of stroke and/or force to select from with additional motors being added to select from. To find the right motor for you application go to: http://moticont.com/linear-motor-with-bearing.htm

About Moticont – Moticont is a manufacturer of motion control products. Their product line includes voice coil motors, three phase brushless motors and positioning stages and slides.

Moticont is committed to exceeding Our customers’ quality expectations and industry standards throughout the design, manufacturing, service and technical support phases. Our modern manufacturing facility, highly controlled processes, committed staff, and extensive testing complement our product design strengths. This enables us to supply our clients with specialized small orders to high volume just-in-time deliveries.

We offer an extensive line of standard products ready to be shipped immediately from stock, and when standard products are not quite right for an application, highly trained design engineers are always available to develop custom motion control products to fit the specific needs or our customers.

For additional information contact Sales Team at Moticont, 6901 Woodley Ave, Van Nuys, CA 91406; Toll Free: +1 (888) 785-1804, Tel: +1 (818) 785-1800, moticont@moticont.comor visit the website at http://www.moticont.com

For other Motion Control Components, Applications, and Technology from Moticont visit: http://Automation-Blogger.com

 

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Motion Control – Two Way 3-to-1 “Traction Drive” Speed Reducers Feature 98% Efficiency!

Rolling Motion Industries 2 Way Speed Reducer is 98 Percent Efficient

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Motion Control Speed Reducer

North Babylon, NY – Motion Control Components – Rolling Motion Industries (RMI) is changing the world of mechanical power transmission! New Two Way MAR-17-2-3:1 and the MAR-23-2-3:1 Speed Reducers using Traction Drive Technology leveraged engineering fluids and precision manufacturing with a simple design that features exceptional reliability and up 98% efficiency! The MAR17-2-3:1 Speed Reducer is designed for input speeds up to 3600 rpm with 10 to 20 in/lbs of torque, and the MAR-23-2-3:1 Speed Reducer is also rated for speeds to 3600 rpm but with an input of 20 to 30 in/lbs of torque.

The propriety engineered traction fluid with a coefficient of friction of just 0.1 to 0.12 transmits torque between the four driving and driven elements. The traction fluid continuously changes from liquid-to-solid-to-liquid in the microscopic spaces between the driving and driven elements. Even though there is no metal-to-metal contact there is no slippage! These compact speed reducers are quiet, generating up to 72% less heat even after weeks of continuous operation, and offer thousands of hours of trouble free operation, as the traction fluid cools and lubricates the traction drive speed reducers.

Having low vibration, and no torque losses from 10 to 3000 rpm, these 3:1 2 way speed reducers let motors operate at peak efficiency while having a damping effect on a motor’s torque ripple. The speed reducers are available with an optional overriding clutch to protect the components as they can not be back driven. Incorporating standard NEMA mounting dimensions, they can be easily integrated into new and existing applications.

Creating 38% lower dB at 3000 rpm than conventional gearboxes these people friendly speed reducers are ideal for use in medical equipment such as mobile hospital equipment and dialysis machines as well as pumps, blowers, fans, turbo and super chargers, conveyers, HVAC systems, and other power transmission and motion applications.

About Rolling Motion Industries (RMI)-

About Rolling Motion Industries (RMI): In 1993 John Pawloski and his brother Ray took over the family business, Jewelers Machinist Co. They realized they needed to switch from outdated conventional thread grinders to CNC thread grinders. As a result, Jewelers Machinist Co is recognized as the source of some of the most complex thread grinding in the industry. The concept for the RMI traction drive came from John in 2007. Working in that high precision industry aided John in the development of the RMI Traction Drive.

In the years that followed, the design of the individual components and formula of the engineered traction fluid were finalized, testing was completed, a patent granted, and production begun. The RMI Traction Drive is one of the most efficient ways to transmit power from one point to another. Utilizing rolling motion, RMI is able to transfer power at various ratios with minimal energy loss. Tested against V-belt, direct drive, chain, and gearbox setups, RMI Traction Drives offer energy saving benefits through true efficiency rating percentages up to 98%. The high efficiency of the traction drive allows electric motors to run at their peak efficiency ranges.

There are many applications where it can be used from automotive to industrial to medical. The RMI traction drive can be used in the electric vehicle market and precision applications. Offering benefits such as low backlash and no back driving, it set a new standard for “high efficiency”.

For additional information contact our sales team at Rolling Motion Industries, 400 Columbus Ave, North Babylon, NY 11703 Tel 860-846-0530, E-Mail info@RMIDrive.com or visit the website at http://www.RMIDrive.com


For other Motion Control Components, Applications, and Technology from Rolling Motion Industries (RMI) go to: http://motionshop.net
 

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Linear Motion – Custom Manufacturing Of Complete Systems & Components by LM76!

Linear Motion – LM76 Expands Custom Manufacturing Capabilities!

 

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LM76 has greatly expanded their capabilities for machining of shafting and the manufacturing of complete systems and custom components.

Linear Motion - LM76 Custom Manufacturing and Custom Machining Facility

To compliment the expanded manufacturing facility LM76 has developed a State-of-the-Art Inspection Lab as well.

Precision Shafting –

Specifiers can specify custom modifications to shafting …

Linear Motion - LM76 Custom Shafting

RC60, 440c, 300 series Stainless Steel, and Ceramic Coated Aluminum, and other exotic materials shafting can be custom drilled, and supplied with custom ends.

For additional information go to:  

http://lm76.com/linear_shafting.htm

 Components, and …

 

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For additional information go to:  http://www.lm76.com/General%20PDF%20For%20Web_opt(Autosaved)PDF2.pdf

… Complete Motion Control Systems!

 

Linear Motion - LM76's Custom Linear Motion Systems

Custom linear motion components and complete custom linear motion systems can be designed and fabricated to meet critical specifications for tooling from Aluminum or Stainless Steel.  Discuss you needs with LM76’s talented engineers for help with any linear motion problem including USDA/FDA applications.

 

For Additional information go to:

http://www.lm76.com/Linear%20Slide%20Catalog%202014.pdf

 

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 all of the LM76 Catalogs go to:

http://lm76.com/PDF%20Catalogs.htm

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 Application – Maxon Drives Power – Hull Cleaning Robot for Large Ships!

Motion Control Application – Specially designed robotic crawler navigates around the underwater portion of a ship to remove the biofilm layers that accumulate there. As a battery operated, autonomous vehicle, component selection made up a highly critical part of the design and manufacture.

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The HullBUG provides grooming of the biofilm that collects on the
underwater portion of ships. © 2011 SeaRobotics

Fall River, MA — Motion Control Components Application – Toxic paint is used on the bottoms of large ships to prevent fouling, which is when a biofilm layer develops, decreasing the ship’s efficiency in moving through the water. The toxic paint continually leeches copper and other heavy metals into the underwater environment as well, causing damage to the organisms that live there. To further complicate the matter, the paint must be blasted off and replaced every 5 to 10 years, at which time literally tons of toxic waste is produced and needs to be disposed of. A ship that operates with a clean underwater surface free from fouling—even thin biofilm layers—will operate so much more efficiently that potential savings can easily reach over five percent in fuel costs alone. Without the concern for fouling, a ship’s underwater coating can be engineered for corrosion protection and longevity rather than its need to eliminate the potential for biofouling. If realized on all the ships operating in the world today the energy savings would greatly reduce the presence of greenhouse gases, as well.

To eliminate the requirement for toxic paint and its cleaning waste, there needed to be a method to “groom” the biofilm from the underwater portion of a ship. The idea was to create important changes for the ships being built as well as for the environment. That is where the HullBUG (Hull Bioinspired Underwater Grooming) concept originated. “The most important feature of the HullBUG is its small size,” according to SeaRobotics Research Engineer, Dr. Kenneth Holappa. “It is only about half a meter in length. This was a necessary design feature, needed to allow the vehicle to maneuver over the curved surface of the hull while continually maintaining close contact with the surface.

This close-up of the HullBUG clearly shows its sensor alignment
system that helps it keep on course while cleaning a hull.

© 2011 SeaRobotics

Because there are hazards associated with operating such a device underwater and in a harbor environment occasionally a HullBUG might be lost or destroyed during operation. Keeping the size and cost of the system low definitely helped to eliminate damage as a major obstacle to implementation. So, from the very beginning of the project, small size and low cost have been identified as being critical to the satisfactory implementation of the HullBUG project. As can be expected, this need to maintain a particular size and weight filtered into the selection of every component of the design.

Motion Control Components

The selection of the motors to drive the HullBUG involved a number of critical engineering constraints and compromises. SeaRobotics decided to make two basic models, one with wheels and one with tracks, and offer several options for keeping track of the system’s progress, which will be discussed later. Sizing of the motors, for example, required a calculated estimate of the power, speed, and torque characteristics of the manufactured devices. Determining factors included the resistance caused from pushing the grooming tool across the surface of the ship, the hydrodynamic resistance of the vehicle itself as it moved through the water, friction losses in the shaft seals that were used to protect the motors from the saltwater, and track or wheel friction dependent on which version of the unit was used.

In this close-up you can see the max-on EC45 brushless motor and
interface boards about to be safely mounted inside the machine.
© 2011 SeaRobotics

maxon motors offers a full line of fractional horsepower moving coil DC motors and brushless motors ranging in size from 6mm to 90mm, and from 30 mW to 500 watts. They also offer gearheads, controllers, and accessories. “The breadth of their product line and quality of their service helped us to feel comfortable that we had selected the right partner,” Ken said. Flat motors manufactured by maxon Precision Motor provide long life along with their low profile package. The entire EC series of brushless motors are electronically commutated, which enables them to have extremely long motor life since there are no mechanical brushes to wear out. The motors incorporate ball bearings or ruby bearings that also add to the longevity of the motors, especially needed in such harsh conditions. The flat motors were designed specifically for robotics applications where size and weight are important selection criteria. The EC45 flat motors selected for the HullBUG are very efficient and weigh only 75 grams. Continuous output power is 30 watts, while the maximum speed is 10,000 rpm (much faster than what was needed for this application). The important specification for this application was torque. Even under the potentially harsh environments that the HullBUG would be engaged in, the EC45 offered a maximum continuous torque up to 56.2 mNm depending on the winding chosen by the user. The Maxon brushless motors are built to IP54 standards, which was important to the application. Furthermore, the motors were also available in the system voltage that SeaRobotics required for the HullBUG application.

According to Ken, “The large load capacity of the shafts of the GP42 gearhead allowed the wheels to directly mount to the gearhead shaft, greatly reducing the complexity of the overall design of the system.” Gearheads manufactured by maxon are available in a wide range of ratios to enhance speed reduction and/or torque multiplication dependent on the needs of the user’s application. Concentric input and output helped to facilitate simpler and more direct mounting arrangements, as well.

Given that the HullBUG vehicle was to be completely autonomous, it had to be designed in such a way as to operate for many hours on batteries (cables would simply get in the way of the grooming operation). In order to maximize battery life, the grooming of the biofilm had to be performed in the most efficient manner possible. Navigating in a random pattern may eventually get the job done, for instance, but not in a reasonable amount of time. Plus, a typical ship presents a very large underwater surface, often as upwards of three thousand square meters. To keep this amount of area groomed it is expected that a user would employ multiple HullBUG vehicles to operate at the same time and, consequently, require a method of acquiring sophisticated coordinated navigation.

Navigating the HallBUG

A toolset of navigation modes has been created to allow multiple HullBUGs to efficiently groom a ship by dividing the ship’s underwater surface into regions. Numerous algorithms have been incorporated to accurately groom the ship in steps down to the turn of the bilge. Additional algorithms and associated sensors are used to allow efficient grooming of the flat bottom of the ship. Miniature acoustic ranging sonar (MARS) is also an option for navigation control of the HullBUG. This is where a very small close range, pencil beam sonar was specifically developed to allow the vehicle to “see” an upcoming wall or cliff condition such as bilge keels and bow thrusters. Yet another mode of navigation uses a MEMS rate sensor for navigation information. Another feedback mode uses encoder based odometry. Hall sensor feedback from the motor is used as an encoder signal to establish an accurate estimate of odometry. Hall sensors were used instead of optical encoders because of size and cost. The Hall sensors provide better than 1mm accuracy in the measurement of odometry with the motor/gearhead combination chosen.

Ongoing Software Development

An autonomous vehicle is often software heavy in terms of engineering efforts once you’ve selected and implemented the proper motion control system. Getting smooth reliable navigation maneuvers that result in accurate positioning in a widely varying environment was one of the more difficult challenges for the design team. Multiple layers of software were necessary for handling the number and variety of possible events that can occur during grooming. And, the proper organization of the control logic to allow extensibility of navigation behavior was the most difficult part of this complex system. “Software development will continue to be an ongoing effort even after the years already put into it,” Ken said. “Though the vehicle is completely operational, there remains a considerable amount of on-ship testing to be done.” As the project moves forward and into the field, there will no doubt be additional issues that will crop up and need to be addressed, as well. Even now, the vehicle must be able to reliably accomplish its task in a hostile environment and in an unmapped terrain. Then it has to be able to return to the waterline of the ship for retrieval.

This operation must be done repeatedly for days, months, and years, and with multiple systems in the water at the same time. Although this sounds as though it is overly difficult, according to Ken, “A technician was recently trained to use the vehicle and was fully competent within a short period of time. The user interface was borrowed from SeaRobotics’ Unmanned Surface Vehicle (USV) product line and presented an intuitive graphics-driven interface that has hundreds of hours of use by many different customers.” The vehicle is operational and the navigation software is working. The next primary focus will be the structuring of the interface to improve ease of use and allow non-engineering personnel to manage operations.

maxon manufactures a wide variety of EC flat motors for different
kinds of applications. © 2011 maxon motor

Contact maxon for more details info@maxonmotorusa.com

Comprehensive documentation and software are included with every delivery, and are also available for you to download from our website at www.maxonmotor.com.

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For other Motion Control Components, Applications, and Technology from Maxon Motor go to: http://Automation-Blogger.com
 

FDA/USDA and 3A-Dairy Compliance Brochure features Linear Motion Components from LM76!

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E. Longmeadow, MA — Motion Control Components – Linear Motion – Food processing and beverage plants’ wash down areas are unique environments that undergo harsh treatment from high pressure washers, steam, and a multitude of caustic chemicals used in the cleaning and sanitizing production equipment. OEMs and maintenance departments need to select components that will not trap contaminating debris and can be thoroughly evacuated following Sanitation Standard Operating Procedures (SSOPs). SSOPs are detailed schedules and procedures specifying what to clean, how to clean, how often to clean, and the record keeping used for monitoring.

A helpful component selection guide from LM76, “Linear Bearings, 6 Simple Steps – FDA Compliance, Wash Down Compliance,” details the linear motion components available from LM76 that are FDA/UDSA/3A-Dairy compliant. Included are: Foodstream electrodeless nickel plated pillow blocks, PTFE lined stainless steel bearings, ceramic coated linear bearings, self-aligning corrosion resistant linear ball bearings, and Thomson® Super SmartTM corrosion resistant, self-aligning, high load linear ball bearings. Shafting to compliment the type of bearing selected includes: Class L Stainless 303/304/316, 440C case hardened stainless, Rc 60 case hardened steel with an Armoloy coating and also Rc78 Class L for enhanced hardness and wear resistance. End blocks and shaft supports that have a ceramic or electrodeless nickel coating are also available, as well as new ETX Scraper Seals that prevents intrusion of contaminates adding another line of defense.

LM76 also designs and custom builds linear slides from Stainless Steel and other FDA wash down compliant materials

Shafting options include: Solid and hollow Class L RC60, 300 series stainless steel in lengths to 12 feet. FDA/USDA/3A-Dairy compliant, shafting features: Excellent corrosion and chemical resistance, custom machining to print, pre-drilling and assembly.

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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