Brushless DC motor – pushing it to the limit

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When prototyping for applications with extreme requirements for brushless DC motors, fast condition monitoring is critical.

Motor applications with limited space available and comparatively large power requirements can push a motor very close to burning out. In theory, it is possible to use temperature calculations for the motor winding with the help of thermal resistance rating from the motor data sheets, ambient temperatures, heat sinking details and housing characteristics. This is always considered first and then tolerances and safety margins are considered. Following this thermal modelling software and imaging can be evaluated. However some applications push a motor so close to the edge, that only real product prototype testing can be relied upon. Simply installing motors and testing how hard you can push them can also be a costly exercise and does not give enough reliable data. Actual winding temperature sensing on the motor is a solution maxon motor offer for these extreme cases. By inserting sensors through ports in the magnetic return stack and in direct contact with the winding, maxon motor can give customers a device that monitors winding temperatures without the thermal time constant delays experienced when measuring winding resistance and using housing thermal time constants.

For more information please contact maxon motor Australia tel. +61 2 9457 7477.

Play foosball against a robot!

Play foosball against robot

A robot operates the opposing player rods on a Foosball table and has won against human players.

The Swiss Federal Institute of Technology (EPFL) has developed a foosball table with autonomously operated robotic rods. The table has a transparent playing surface with a camera that locates the ball by taking up to 300 images per second. These images are immediately evaluated and sent to control the rods, which are powered by maxon EC-4 pole DC brushless motors with gearheads and motor controllers. The rods stop the ball and aim for the goals. The students aim to make the robot even more intelligent by programming the robot to analyse opponents players, find gaps in the defence and predict the ball’s trajectory.

For more information on DC motor technology please contact maxon motor Australia on tel. 61 2 9457 7477.

Maxon motor posts record revenues

 

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Throughout 2016 maxon invested significantly in expanding its facilities, bringing a large number of new technologies & innovations to market and expanded on their market leading position.

Sachseln/Switzerland – The maxon motor group further increased its revenues in 2016. Compared with the previous year, revenues grew by 5% to a new record level of CHF 422.5 million (from CHF 402.5 million in the previous year). The number of employees rose to 2,500 and for the first time in company history, maxon employs more people abroad than in Switzerland. The highest revenues were achieved in medical technology (43% market share), followed by industrial automation & robotics (26%) and aerospace industries (6.5%). Investment in R&D rose to CHF 28.5 million in 2016 (up from 27.1 million).

Maxon is increasingly becoming a specialist in mechatronics and systems, launching the first fully sterilisable drive system this year. Drive combination units consisting of brushless DC motor, gearhead and sensor are designed to withstand 1000 autoclave cycles. Maxon’s new DC motor controllers also stand up to extreme ambient conditions. The electronics are protected against contaminants and corrosion by a polymer coating. In addition, the device is highly resistant against vibrations and shocks.

For the e-bike market, maxon motor developed a new S-Peledec motor with a 500 Wh battery and intuitive operation for urban applications. The bike reaches speeds of up to 45 km/h and the device stands out because it can convert any regular bicycle into an e-bike. maxon is also active in the field of autonomous delivery robots. This is a market where the energy-efficient and lightweight drive systems by maxon are in particularly high demand.

For more information on DC motors and accessories please contact maxon motor Australia tel +61 2 9457 7477.

Maxon building a new site focusing on innovation and DC motors for medical devices

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An investment of CHF 30 million will see a new center for innovation, R&D and production of maxon’s smallest DC motors and drives for use in medical applications.

At their headquarters in Sachseln, Switzerland, maxon motor are building a new site with construction commencing February 2017 and due for completion by the European Summer of 2018. Keeping in line with maxon’s environmental policy, the new build will have solar installation generating 180 MW hours of electricity per year and a habitat for local plants and animals.

With a focus on the medical industry, to meet future demand projections the maxon medical division will double in size. Producing the successful micro-motor (4mm in diameter) as seen in surgical robots, insulin pumps and medication delivery systems, the demand for this field has grown enormously with the advancements in technology. To meet the strict medical quality mandate, the production area will be equipped with clean rooms including a biocompatible room.

The new facility will also house research & development, complete drive systems in mechatronics and Industry 4.0 networking of production. “The new Innovation Center is a move to strengthen our Swiss headquarters in order to become stronger internationally”, says maxon CEO Eugen Elmiger.

For more information on maxon DC motors in medical applications or for any assistance with your application contact maxon motor Australia on tel. +61 2 9457 7477.