Boxborough, Massachusetts – Dover Motion has launched a new product, the XMG Miniature Linear Stage. This new stage is a high-performance version of Dover Motion’s Miniature Moving Magnet Stage (MMG) and offers higher force density compared to competitive offerings.
In order improve the force density; the XMG model features an ironless motor that delivers cogging-free smooth linear motion with minimized force ripple and force variations. The novel motor design ensures that force variation along the motor’s electrical cycle is minimal compared to a typical linear motor stage. With a sinusoidal back EMF, the XMG stage ensures that the force ripple is also negligible.
These features are advantageous for applications that require a stable velocity or consistent force to move and settle quickly. The high-power direct drive motor generates less heat for the same motion profile compared to less powerful motors, resulting in more accurate motion.
The XMG Miniature Linear Stage allows larger payloads and faster step and settle, for improved throughput, making it suitable for high throughput systems where a higher rate of acceleration is needed. In the case of vertical applications, the XMG stages will self-support larger loads without any counterbalance due to the more powerful motor. The benefit is a simpler installation and lower costs for purchasing and adjusting extra components such as magnetic or air counterbalance hardware. The stage also is useful for applications where excessive motor heat will negatively affect the working environment or positioning performance.
Source: Dover Motion