maxon motor have developed the Exoskeleton Drive GEN.1 for use in hip and knee exoskeletons.
The global Exoskeleton market is growing in both market share and technological developments at a rapid rate each year. Maxon motor have several global customers we have worked with to develop brushless DC motor solutions for use in robotic limbs.
Available from the beginning of October 2017 is a complete joint actuation unit consisting of a pancake brushless DC motor (EC90 flat) with inertia optimised rotor, Internal high resolution 4096 MILE Encoder, planetary gearhead with absolute encoder and EPOS4 position controller with CAN and RS232 interface. Fitting the 17bit SSI absolute encoder directly at the joint rotation to a degree will negate the effect of gearhead backlash giving designers increased positioning accuracy. The unit will deliver 54Nm of continuous torque and 120Nm on a 20% duty cycle. The system can be operated on supplies between 10 and 50V DC and the actuation speed is up to 22rpm. Drawings and pricing are now available contact maxon motor Australia for further information.
There are many different benchmarks in the marketplace for the sterilisation capabilities of devices. maxon motor explain the cycle and testing process for Autoclavable brushless DC motors.
maxon motor develop brushless DC motors that can be sterilised for medical and dental applications. Recently released is the new ECX range of motors with sterilisation capability on 13,16,19 and 22mm diameter versions. The new range of motors complement the existing 4 pole sterilisable 30mm brushless 150W motor and offer high speed capability up to 120,000rpm. maxon motor test the brushless motors to either 1000 autoclave cycles or 2000 cycles depending on the product. For motors with hall sensors fitted the motor is typically cycled through 1000 autoclave cycles and without hall sensors 2000 cycles. Gearheads are available with additional shaft seals. With the additional seal they are tested to 2000 cycles and without, 1000 cycles. Another new product that offers a completely sterilisable positioning system for the first time is an encoder rated and tested for 1000 cycles.
The maxon motor internal autoclave testing is carried out with the autoclave with a vacuum phase. The motors are unpacked and mounted without any additional protection. Three vacuum cycles are made at the beginning to ensure the internals of the motor become damp. The sterilisation atmosphere is built up with steam which remains constant for 18 minutes at 134˚C, 100% humidity and 2.3 bar of pressure. The unit is then cooled to 70˚C and dried. Each individual autoclave cycles takes approximately 1 hour. After 100 cycles the motors are removed from the autoclave and visually checked and motor operation is checked. Following this the motor is then removed after 250 cycles and visually checked in addition to data acquisition of the running data, motor noise, vibration and electrical strength test at up to 500V DC. Typical batch test cycles are conducted with 10 pcs and the tests are repeated with design changes. Internal testing of the motors to 2000 cycles takes approximately six months.
Contact maxon motor Australia for assistance with Autoclavable brushless DC motor options Tel. +61 2 9457 7477.
maxon motor Australia have configured a combination of brushed DC motor, planetary gearhead and digital incremental encoder with completely customised features for a prominent medical manufacturer and have produced it in 11 working days.
An interactive 3D model of the entire assembled combination showing all modifications and final production part numbers can now be generated within an hour of specification request along with data sheets showing the working points of the application. The new process eliminates large amounts of traditional internal procedures, with the robotic production line and parts procurement all linked together with the new design tool. The new motor pictured below shows a unique stepped planetary gearhead that uses a 26mm diameter on the high speed input stage and a 32mm on the high torque output stage. Focusing the wear and strength attributes by placing components specific to their role also increases the motors power density. In order to allow for the full use of shaft length that is tailored for the application, a new process of laser welding the inner race of the output bearing directly to the shaft material has been used over the traditional methods of c-clips and shaft collars. This is also naturally stronger than glue and press fit methods. The motor is capable of producing over 10,000rpm and the gearhead up to 12Nm with ratios to 1526:1. Zero cogging and linear characteristics combined with new encoder resolutions up to a staggering 65,536cpt open new position control possibilities for automation, tool and robotics applications.
Contact maxon motor Australia for assistance. Ph: +61 2 9457 7477.
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.
With the introduction of the ECX 19 SPEED brushless DC motors, maxon are phasing out the EC 19 and Planetary Gearhead GP 19.
The EC 19 and the GP 19 M were officially introduced in 2014. They will be replaced with brushless DC motors – the ECX SPEED 19 series. Final orders will be received up to December 22, 2017 with last delivery scheduled for March 30, 2018.
The alternative is the brushless ECX range of DC motors. Configurable online, these brushless DC motors are sterilisable, have ceramic bearings and are available with or without hall sensors. With an ironless winding these DC motors have an exceptionally large speed range, high power, excellent control characteristics and are highly durable. Choose from matching gearheads and with the option to configure the electrical connection.
For more information on an alternative DC motor or for application assistance, please call maxon motor Australia on tel. +61 2 9457 7477.
Dutch company Preceyes developed a world first robotic system for retina disorders, using haptic feedback and maxon DC motors.
Detached retina surgery requires precision to an nth degree where the stability of human hands are no match compared to robotic systems. This is why Dutch company, Preceyes, developed a completely new robotic system for eye surgery. Especially designed for the treatment of retina disorders, the robotic device improves precision up to 20 times more than a Surgeons hand, making operations once deemed impossible due to lack of precision now being successfully performed.
Surgeons operate via a joystick while looking through a microscope. The joystick controls a robotic arm, controlled by maxon DC motors, assisting surgery in millimeter increments. A haptic feedback function allows the surgeon to see and feel their actions and the robotic system supports quick retooling. This is an important factor because it reduces operation time bringing a multitude of benefits to the patient.
For more information on DC motors and drive systems in robotic medical applications, please contact maxon motor Australia tel. +61 2 9457 7477.
High-tech machines analyse human blood samples and detect coagulation disorders. Maxon motor France supplies the DC drives as well as builds entire conveyor modules especially for a customer.
Analysis devices in laboratories and hospitals run 24/7, autonomously pipetting samples to deliver quick results. Such industrial automation equipment must work with high accuracy and reliability. This in turn places high demands on all components of the machines.
Stago is a French company that specialises in analysis instruments for haemostasis diagnostics (for testing blood clotting). Maxon DC motors are found in Stago’s StarMax machine. A fully automated analysis system, the StarMax is equipped with a three-axes robot with space for 215 samples and 1,000 test containers. Working autonomously the machine checks results, compares them and monitors the processes.
There are several varieties of maxon’s brushed A-max DC motor combined with planetary gearheads, that are used for the movements of the rack. With varying diameters between 16 and 26mm, these DC motors were selected for being highly dynamic and easy to control. The DC motors have an ironless rotor and are manufactured autonomously giving them an attractive price-performance ratio.
For more information on applications involving mechatronics and automation please contact maxon motor Australia tel. +61 2 9457 7477.
maxon motor have released the digital edition of the new 2017 / 2018 catalogue. Answering the how to’s of motor control it contains valuable motor and motor control reference material.
Containing 480 pages of motor, gearhead and controller information and useful educational material including a technology breakdown, calculation examples and conversion tables the manual is available now for downloading or online reading. New technology listed includes the customisable stainless steel DC motors in 6mm and 8mm. Information on the new very high speed 13mm BLDC brushless DC motor technology that can be sterilised for medical applications. Ultra-small diameter planetary gearing and high speed gearbox designs and the very latest in motion control, explaining modular decentralised DC motor position controllers and high power density DC servo amplifiers.
Maxon now offer more sizes in their sterilisable range of brushless DC motors, gearheads and an all new encoder.
Now available in a 13mm diameter is the brushless DC motor (ECX SPEED range) with accompanying planetary gearheads (GPX 13 SPEED) and the first of its kind sterilisable Encoder (ENX 13 EASY INT). All fully configurable, sterilisable and optimised for high speeds and low vibration output, making them perfect for demanding speed and positioning control tasks in surgical applications.
A stand-out feature of the sterilisable encoder is the chip used for generating the commutation signals in the Hall sensor version. When coupled with the brushless DC motor ECX SPEED 13 it facilitates extremely precise commutation and reduces heat. The encoder can be integrated within the motor to optimise costs and assists in applications with tight space restrictions. The DC motor combination can be configured online and ready to ship in 11 working days.
For more information please contact maxon motor Australia tel. +61 2 9457 7477.
For applications requiring a DC micro motor that is robust, powerful and delivers high performance.
maxon have released two new brushed DC micro motors available in 6mm and 8mm diameter as part of their DCX range. The DC motors have a robust design with maximum power density from the high-performance neodymium magnets.
Also available are matching gearheads, the planetary gearhead 6mm and planetary gearhead 8mm, as well as two motor controllers, the ENX 6/8 OPT (optical) and ENX 6/8 MAG (magnetic). The matching planetary gearheads are welded directly to the motor and offer reduction ratios of up to 1000:1. Both are able to transmit short-term torques of 60 and 150 mNm respectively. The motor encoders are available in two versions for each diameter and work with voltages as low as 3V, therefore making them highly suitable for medical devices. The encoders come in a magnetic version and for magnetically sensitive applications, the optical encoder is available.
These micro motors are configurable online and available for dispatch in 11 working days from date order placed.
For more information please contact maxon motor Australia on tel. +61 2 9457 7477.