December 28, 2021 Volume 17 Issue 48

Motion Control News & Products

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Brushless slotted flat motor weighs only 15 grams

The 20ECF brushless slotted flat motor is the latest motor to join Portescap's flat motor line. The motor's 19-mm rotor diameter is notably smaller than the 20-mm diameter of competitive solutions. At 15 grams, the 20ECF provides a mass savings of at least 30% when compared to competing motion solutions. The motor's design optimization also helps it achieve a 50% improved motor regulation factor relative to standard available solutions. Applications include surgical and service robotics, lab automation, premium tattoo machines, electric grippers, LiDar, and pumps.
Learn more.


Efficient, reliable and flexible robot gripper optimizes machine tending operations

To continuously deliver high-quality results to its customers, WEFAG AG not only invested in new CNC machines, but also deployed a collaborative application with the 3FG15 gripper from OnRobot to tend the CNC machines. This makes it possible for the Swiss family-owned company to meet extremely short delivery times and smaller batch sizes confidently, while also reducing the workload of employees, who can now focus on more demanding tasks.
Watch how the 3FG15 delivered an ROI in 2 months.
Learn more: How to automate machine tending.


Differences between types of multi-axis positioning stages -- parallel vs. stacked

According to the experts at PI (Physik Instrumente), stacking individual motorized stages is a fine approach for assemblies of just a few axes, but as applications become more complex a 6-axis stage design based on parallel kinematics could be the best option. Learn about stiffness, inconsistent dynamics, size and weight fragility, and even cabling considerations for multi-axis applications. Lots of good info here.
Read this informative PI blog.


Universal Robots' new UR20 Cobot makes its U.S. debut at IMTS 2022

Attendees at North America's leading machine tool show (IMTS) are experiencing how the all-new collaborative, industrial cobot from Universal Robots delivers the longest reach and payload in its class, offering the ability to automate even more hard-to-staff tasks in a market struggling to hire. Also learn about cobot grippers, machine tending, robo welding, and more.
Read the full article.


Miniature voice coil servo motor with 1-micron resolution

The miniature GVCM-016-019-01M Linear Voice Coil Servo Motor from Moticont is smaller in diameter than a dime and features a high force-to-size ratio of 1.5 N (5.3 oz) continuous force and 4.6 N (16.6 oz) of peak force. These brushless mini linear servo motors are clean, quiet, and feature high acceleration/deceleration, high speed, high reliability, and cog-free linear motion. An ideal choice for haptic feedback, pipetting in medical devices, machining and drilling, scanners, laser beam steering, sorting, assembly, and more. Can also be a low-cost replacement for pneumatic linear actuators.
Learn more.


MAHLE claims new EV motor is most durable -- can run indefinitely with high performance

Automotive supplier MAHLE says it has developed "the most durable electric motor available" for electric vehicle (EV) applications. Unique to the market, the traction motor -- with a continuous output of more than 90% of its peak output -- can run indefinitely with high performance thanks to a new cooling concept.
Read the full article.


What are Crossed Roller Bearings?

Learn all about HIWIN Crossed Roller Bearings that are three to four times more rigid than standard bearing solutions and are capable of handling loads in the axial, radial, and moment directions. They consist of an outer ring, an inner ring, and a plurality of rollers and spacers. The roller lies between the inner and outer ring with the spacers placed between the rollers to prevent the mutual friction between them, thereby decreasing the torque resistance for rotation. Many options are available depending on the level of rigidity needed.
Learn more.


Compact electrically controlled hydraulic actuator

Bosch Rexroth has expanded its range of standardized self-contained actuators by adding the CytroMotion system solution. With the help of the new compact actuator, linear movements involving forces up to 110 kN can be achieved in a range of machines and systems in smaller spaces -- more efficiently and more sustainably. These benefits can be seen over the entire life cycle. Thanks to fully electric control, CytroMotion makes engineering and commissioning easier. The efficient, power-on-demand drive and the maintenance-free, hermetically sealed design also minimize operating costs.
Learn more.


Belt-driven actuators for harsh environments

Rollon's newly enhanced Plus System lineup of belt-driven linear actuators can be integrated seamlessly with industrial machines. Combining sturdy construction, protective features (sealed), and high-performance characteristics for load, moment control, speed, and acceleration, the Plus System family features an anodized aluminum structure and steel reinforced driving belt. Three types available: Plus System ELM completely enclosed unit, Plus System ROBOT for multi-axis or SCARA robots, and Plus System SC for vertical motion in gantry applications.
Learn more.


Linear positioning and motion systems at IMTS 2022

SCHNEE-BERGER Linear Technology will spotlight its precision positioning and motion systems at IMTS 2022 in September. On display will be a fully functioning demo of a complete linear motion technology system featuring the company's leading and most innovative linear motion components. When linear tech components are designed to work together to create the most effective solution for machine movement, OEMs can accelerate design and manufacturing, reduce assembly time and labor, and achieve a lower TCO.
Learn more.


Micro-sized FlexPro servo drive

ADVANCED Motion Controls' new 60-A continuous FlexPro servo drive model FM060-60C-RM is the third "machine embedded" version in this power range, adding RS-485/232 communication to the previously released EtherCAT and CANopen versions. This drive can operate at its 60-A peak rating continuously with no need for current foldback -- impressive because the micro-package size means up to four units can fit within the footprint of a business card. Applications include cobots, AMRs, AGVs, portable devices, lab and warehouse automation, military equipment, and more.
Learn more.


NSK's new Active Casters help robots move effortlessly

NSK has developed new Active Caster technology for service robots and mobility drive applications. The compact, electric-powered turning unit provides both drive and steering functions based on the difference in rotation between two motors. The developers say it generates less vibration compared to an omnidirectional mobility unit using Mecanum wheels.
Read this informative NSK article.


Hybrid stepper motor with 8-pin integrated connector

Lin Engineering's NEMA 23 (57-mm) hybrid stepper motor can be ordered with an 8-pin integrated connector that allows for multiple connection options. Standard and customized windings and shaft options are available to match your performance requirements, as well as customizable leads and wire harness. This high-volume-availability motor may be the perfect drop-in replacement for your designs if you are experiencing supply chain issues.
Learn more.


IronHorse jet pump and stainless steel motors

Automation-Direct has added the new, economical IronHorse MTRJ series of jet pump motors to their AC motor lineup. They come in a TEFC enclosure with a 56J frame that has a threaded shaft for direct connection to a jet pump, and are available in 120/230 VAC from 1/3 to 2 hp and in 208-230/460 VAC from 1/3 to 3 hp at 3,600 rpm. AutomationDirect has also added the MTS series of IronHorse motors that offer premium efficiency (EISA compliant) and come with an IP69K-rated stainless steel construction that can survive the harshest of environments. They are available in sizes from 1/3 to 20 hp in 208-230/480 VAC 3-phase and in speeds of 1,200, 1,800, and 3,600 rpm.
Learn more.


Machine learning eliminates cogging for linear motors

The highly dynamic AL8000 linear motors from Beckhoff now meet even greater requirements for accuracy and synchronization with the new TwinCAT Cogging Compensation software, which compensates for cogging forces. Cogging forces in linear motors are caused by the magnetic attraction between the iron core in the primary part and the permanent magnets in the secondary part. AL8000 linear motors are particularly suitable for high-precision applications such as milling machines or laser cutting machines.
Learn more.


Robot density in manufacturing nearly doubled globally in last 5 years -- where do you think U.S. ranks?

The use of industrial robots in factories around the world is accelerating at a high rate: 126 robots per 10,000 employees is the new average of global robot density in the manufacturing industries -- nearly double the number five years ago (2015 = 66 units). This is according to the 2021 World Robot Statistics report, issued by the International Federation of Robotics (IFR) Dec. 14, 2021.

By regions, the average robot density in Asia/Australia is 134 units, in Europe 123 units, and in the Americas 111 units. The Top 5 most automated countries in the world are: South Korea, Singapore, Japan, Germany, and Sweden.

"Robot density is the barometer to track the degree of automation adoption in the manufacturing industry around the world," said Milton Guerry, president of the International Federation of Robotics.

Asia
The development of robot density in China is the most dynamic worldwide: Due to the significant growth of robot installations, the density rate rose from 49 units in 2015 to 246 units in 2020. Today, China's robot density ranks 9th globally compared to 25th just five years ago.

Asia is also the home of the country with the world's highest robot density in the manufacturing industry: The Republic of Korea has held this position since 2010. The country's robot density exceeds the global average seven-fold (932 units per 10,000 workers). Robot density had been increasing by 10% on average each year since 2015 in Korea. With its globally recognized electronics industry and a distinct automotive industry, the Korean economy is based on the two largest areas for industrial robots.

Singapore takes second place with a rate of 605 robots per 10,000 employees in 2020. Singapore's robot density had been growing by 27% on average each year since 2015.

Japan ranked third in the world: In 2020, 390 robots were installed per 10,000 employees in the manufacturing industry. Japan is also the world´s predominant industrial robot manufacturer: The production capacity of Japanese suppliers reached 174,000 units in 2020. Today, Japan's manufacturers deliver 45% of the global robot supply.


VIDEO: Worldwide facts about industrial robots, 2021. [Credit: International Federation of Robotics]

North America
Robot density in the United States rose from 176 units in 2015 to 255 units in 2020. The country ranks 7th in the world -- ahead of Chinese Taipei (248 units) and China (246 units). The modernization of domestic production facilities has boosted robot sales in the United States. The use of industrial robots can also aid in achieving decarbonization targets (e.g., in the cost-efficient production of solar panels and in the continued transition toward electric vehicles). Several car manufacturers have announced investments to further equip their factories for new electric-drive car models or to increase capacity for battery production. These major projects will create demand for industrial robots in the next few years.

Europe
Europe's most automated country is Germany, which ranks 4th worldwide with 371 units. The annual supply had a share of 33% of total robot sales in Europe in 2020 -- 38% of Europe's operational stock is in Germany. The German robotics industry is recovering, mainly driven by strong overseas business rather than by the domestic or European market. Robot demand in Germany is expected to grow slowly, mainly supported by demand for low-cost robots in the general industries and outside traditional manufacturing.

France has a robot density of 194 units and ranks 16th in the world, which is well above the global average of 126 robots and relatively similar compared to other EU countries like Spain (203 units), Austria (205 units), or The Netherlands (209 units). EU members like Sweden (289 units), Denmark (246 units), and Italy (224 units) have a significantly higher degree of automation in the manufacturing segment.

As the only G7 country, the UK has a robot density below the world average of 126 units with 101 units, which ranks it 24th. Five years ago, the UK's robot density was 71 units. The exodus of foreign labor after Brexit increased the demand for robots in 2020. This situation is expected to prevail in the near future, with the modernization of the UK manufacturing industry also projected to be boosted by massive tax incentives called the "super-deduction." From April 2021 until March 2023, companies can claim 130% of capital allowances as a tax relief for plant and machinery investments in the UK.

Source: International Federation of Robotics

Published December 2021

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