Archive | April 2018

Tailor made brushless DC servomotor and planetary gearbox.

This small brushless DC motor displays the advanced miniature and micro motor manufacturing techniques of maxon motor. So small are the details it is hard to capture the modifications and quality. The example pictured is a 10mm diameter DC motor and planetary gearbox fitted with an encoder for speed and position control.

What’s new? Sure there are a lot of small DC motors available now days however it’s in the detail that defines the difference between motors. Pictured is maxon motors newest planetary gearhead range that has been selected because of its stainless steel construction. The body and flange of the gearbox are one piece allowing the design engineers to not only create a mounting flange specific to the mounting footprint available in the application, it also allows maxon motor to orientate the gearhead flange with the motor cable exit. Enabling a shorter cable and neater cable looms. Laser welding of the motor flange is also a technology that is used to affix a customer specific drive pinion to the shaft. This gives the strongest possible power transmission coupling in these miniature sizes. maxon motor provide its customers with complete drawings and models for appraisal before samples are manufactured even for non-standard DC motor and gearhead assemblies like the shown example.

The new 10mm gearhead can supply torque levels up to 200mNm and can operate with input speeds up to 15,000rpm. Standard supply is with stainless steel ball bearings, it has efficiencies as high as 90% and weight as low as 6.7g.

Contact maxon motor Australia for further assistance Ph:+61 2 9457 7477.

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Maxon release new product: flat BLDC motor with cables.

Driven by customer demand, maxon release modifications to their flat / pancake motors.

maxon motor have altered the EC45 and EC90 flat BLDC motors. Now with the option to add cables with a pre-mounted connector by default and in combination with the integrated MILE encoder. The motors offered are the EC 45 flat in 50 & 70 W versions or 30 W by request. The EC 90 flat 160 W and 260 W is now available in cable version. The cable versions feature a much smaller footprint by eliminating excess PCB overhang from the side of the motor.

The flat design of the brushless DC flat motors makes them ideal for many applications, particularly robotics and industrial automation. Offering internal or external rotor motors, the flat BLDC motors are perfect for when space is limited being small and lightweight but with powerful torque. The simple and considered design means that production is largely automated, keeping prices as low as possible.

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

New powerhouse DC motor positioning controller.

Maxon motor have developed their most powerful DC motor positioning controller to date.

With a maximum power output of 2.1kW maxon are pleased to announce the release of the EPOS4 70/15 DC motor positioning controller. The CANopen controller with an EtherCAT option is presented in a robust metal housing. Suitable for both brushless and brushed DC motors the positioning controller is a cut above the rest due to its ease of operation and broad operative scope. The various digital and analogue connections can be configured and the unit is suitable for use with a wide variety of feedback systems. It can also be integrated into various master systems. This new product and many more will be showcased at the Hannover Messe in Germany from 23-27 April. For more information please contact maxon motor Australia tel. +61 2 9457 7477.

Brushless DC motor with gear and holding brake.

This brushless DC motor is an example of the new small part combinations from maxon motor Australia that provide increased levels of power density. The unique assembly provides a blend of high speed, zero motor cogging and holding power.

The servo mechanism consists of a stainless steel high power BLDC (brushless DC) 120W 36V 22mm motor which is capable of maximum speeds up to 25,000 rpm and a stall torque rating of over 1Nm. It is fitted with a 22mm ceramic planetary gearhead that further increases the torque and brings the speed down to the application engineers required levels. For holding overhung loads or maintaining position in power cycles the rear of the motor has been re-engineered to accommodate a 0.1Nm holding brake. The brake force multiplied with the gearhead ratio gives holding forces well beyond nominal gearhead ratings. The brake opening reaction time is ≤6ms. This fast response allows the brake to be sequenced in dynamic positioning systems making the new combination particularly suitable for robotic rotary and linear actuators.

To facilitate the customisation of new products like this brushless servomechanism, maxon motor project engineers are now split into dedicated aerospace, medical, industrial and transportation teams. For assistance developing a customised application solution please contact maxon motor Australia on +61 2 9457 7477.

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