With exceptional development capabilities, MOONS' provides high-performance hybrid stepper linear motors combined with high-quality leadscrews and nuts, opening up new avenues for designers of equipment requiring high performance and superior durability. Thanks to their special stator geometry and optimized magnet materials, the MOONS' actuators generate more force than comparable actuators. For simple designs with lower performance requirements, our proven permanent magnet linear actuators are ideal. Linear stepping motor can be divided into: external drive linear stepping motor (including lead screw and ball screw), straight shaft linear stepping motor, push rod linear stepping motor, permanent magnet linear stepping motor.
MOONS' offers two types of PM linear stepper motors: Permanent Magnet (PM) Stepper Motor Non-Captive and Captive, with push/pull force ratings of 24N(86.3oz) to 50N(179.9oz).
What is the positioning accuracy and repeatability of a linear stepper motor?
Positioning accuracy:error on the estimated position of a receiver related to the true position. Ball Screw Positioning Accuracy：±0.052mm/300mm Lead Screw Positioning Accuracy：±0.21mm/300mm Repeatability：the closeness of the agreement between the results of successive measurements of the same measure, when carried out under the same conditions of measurement. Ball Screw Repeatability：±0.01mm Lead Screw with Standard Nut Repeatability：±0.05mm Lead Screw with Anti-BacklashBlack Nut Repeatability：±0.02mm
Comparison chart of positioning accuracy and repeatability
What is the maximum speed of a linear stepper motor?
As the speed of a linear stepping motor increases, the torque will decrease, so when selecting a linear stepping motor, you need to refer to the speed-thrust table for selection. (see example following)
How to calculate the linear travel / step of a linear stepper motor?
travel/step refers to the displacement of the slider in the axial direction every time the motor rotates by a step angle. Travel/Step=Leads/( 360°/Step Angle ) Lead is the linear travel the nut makes per one screw revolution Pitch is the distance between screw grooves and is commonly used with inch sized products and specified as threads per inch. The pitch and lead are equal with single start screws. For multiple start screws the lead is the pitch multiplied by the number of starts.
How to solve the noise problem of linear stepping motor?
Check if the stepper motor is running in the low speed resonance area. When the stepper motor runs within 200pps, it is prone to low frequency resonance, and it is necessary to avoid this working range as much as possible. When the thrust is greater than the load, the drive current can be reduced to reduce noise Use MOONS' recommended grease to greatly reduce noise and increase nut life For stepper-servo motors, check if the PID parameters are reasonable If you are using a MOONS' driver, you can enable anti-resonance, torque ripple smoothing, microstep emulation, etc. to reduce noise