Posted to News on 25th Nov 2021, 00:00
Maxon adds dynamism to robotic drives
Maxon presents a new frameless BLDC motor with matching encoder that it says really comes into its own in dynamic applications. At the same time, the drive specialist is presenting a new series of ECX flat motors for a wide range of robotics applications. This heralds the arrival on the market of several solutions for design engineers grappling with tight spaces.
The EC frameless DT50 is the precursor of a new product family developed specifically for dynamic movements. The brushless motor with its frameless concept can be easily integrated into a wide range of applications by design engineers. It comes into its own in applications where speeds can change in an instant, such as in collaborative robots or exoskeletons. When installed, the EC frameless DT50 reaches a nominal torque of over 500 mNm at a nominal speed of 4,000 rpm. This is despite a stator outside diameter of only 50 mm. At the same time, the new winding technology enables a very short motor length with a very large hollow shaft of 28 mm.
The TSX-MAG encoder completes the EC frameless DT50. It is a new through-shaft encoder that is not installed directly on the motor axis (off-axis installation). This gives engineers great freedom when it comes to design. The encoder can generate both Hall signals and incremental signals, which allows field-oriented commutation of the motor. More versions of the TSX-MAG and additional drive combinations will follow soon.
Also new is the ECX flat product family. These external-rotor motors can be configured online and are optimised for maximum performance thanks to the special winding technology as well as segmented magnets. Maxon says the ratio of torque to weight and size makes the motors perfect for applications such as UAVs (unmanned aerial vehicles) and robotics. The iron-wound motors will be available with diameters of 22 mm, 32 mm, and 42 mm, each in a short version and a long version. The short versions are just 14 mm, 16 mm or 21 mm in length. The BLDC motors are thus perfectly tailored to compact drive solutions, which need a high torque. In addition, all variants will also be available with integrated encoders or with integrated speed controllers as a drive system.
