"Shaft motor" - A cylindrical linear motor that achieves high precision and high efficiency.
Would you like to take a step forward with high precision and high efficiency using a shaft motor?
The shaft motor is… ■ A linear (direct drive) motor. ■ Shaft type (cylindrical type). ■ Coreless motor. ■ Servo motor. It has a structure where magnets loaded on the shaft are surrounded by coils in a 360-degree manner. There is an air gap between the shaft and the coil (slider, movable part), and they do not make contact. Position recognition is done using an encoder. The higher the resolution of the encoder, the greater the positioning accuracy. When the shaft is fixed, the slider moves, and conversely, when the slider is fixed, the shaft is driven. It is supported by linear guides. Features include… ■ No cogging (no speed fluctuations) and good uniformity. ■ High repeat positioning accuracy, allowing for precise positioning. ■ High responsiveness in operation, capable of moving quickly and stopping swiftly. ■ Capable of high-speed drive while remaining quiet. ■ Maintenance-free with a long lifespan. And more. It is used in a wide range of industries, including manufacturing equipment and measurement/inspection equipment. We offer a wide lineup and customization to meet customer requests.
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basic information
A magnet mounted on the shaft is surrounded by a slider (coil) in a 360-degree manner, achieving high precision with high efficiency and high rigidity. 【Series】 S Series: Standard L Series: A series with a larger gap (space) between the slider and the shaft motor (for long lengths) SX Series: High thrust type (compact); high thrust types are also available for medium to large sizes through customization. 【Configuration】 ■ The shaft containing the magnet has a diameter starting from Φ4mm, and as it increases to 6mm, 8mm, 10mm, etc., it generates strong magnetic force. ■ The slider (coil) receiving the magnetic force has sets of UVW, with D (2 sets), T (3 sets), and Q (4 sets) stored, and as the number of sets increases, the number of coils increases, resulting in greater thrust. ■ Various thrust profile combinations are possible depending on the combination of the shaft diameter and the size of the slider. ■ For example, with the S250Q-300st, the diameter of the shaft in the S series (standard type) is 25Φ, the slider (movable part) is of type Q, and it is a shaft motor with a stroke of 300mm.
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Applications/Examples of results
There are proven implementations in a wide range of industries, including manufacturing equipment and measurement/inspection devices! In addition to standard specifications, we can also accommodate customizations based on customer requests. - Devices that require constant speed (e.g., electrical discharge machines, laser devices, coating devices, inspection devices, image processing devices, etc.) - Devices that require high-speed startup or high-speed movement (e.g., die bonders, chip bonders, mounting devices, etc.) - Devices that require step feeding (e.g., various processing devices, etc.) - Devices that require pressure control (load control) (e.g., electrical inspection devices, 3D assembly devices, solder inspection devices, etc.) - Devices with a gantry structure (e.g., various gantry devices, etc.) - Devices that mount multiple sliders on a single axis (e.g., AOI, laser devices, etc.)
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Company information
As a mass production manufacturer of our unique next-generation cylindrical linear motor, the "shaft motor," which is incorporated into our self-developed manufacturing equipment, we have been widely utilized by equipment manufacturers, measurement and inspection equipment manufacturers, and processing equipment manufacturers for about 30 years since proposing the product to the market, focusing on high precision, high performance, and high added value. In the spring of 2023, we carried out the second factory expansion of our headquarters factory located in the Mogami region of Yamagata Prefecture, where our company originated, and together with our factory in Dalian, China, we are advancing the development of products and manufacturing systems to better meet our customers' needs. As the demand for high precision, high added value, and diversification of all products continues to grow, we hope to see the "shaft motor" utilized in even more opportunities.