Linear Servo - Linear Shaft Motor
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Linear Shaft Motor Linear Shaft Motor Linear Shaft Motor - The Next Generation Actuator Nippon Pulse's family of Linear Shaft Motors are the next generation linear brushless motor. When reliability, zero maintenance, zero cogging, and precision are paramount, the Linear Shaft Motors from Nippon Pulse are an ideal component choice, offering the user uncompromised performance, ease of use, compact package size, and high value. What is a Linear Shaft Motor? The Linear Shaft Motor is a high precision direct drive linear servomotor consisting of a shaft of rare Earth-Iron-Boron Permanent...

Linear Shaft Motor The Next Generation of Linear Motors Force Magnetic Flux Shaft Gap U W V U W V N S S N N S S N N S S N U W V U W V Motor Coil (Forcer) Stainless Steel Shaft High Energy Magnet Basic Structure of a Linear Shaft Motor The magnetic structure of the Shaft is built in such a manner that there is no space between each magnet and is fully supported within itself. The magnetic structure is then inserted into a protective stainless steel tube. This process is protected by numerous patents throughout the world. This patented process used produces a very strong magnetic field which...

Linear Shaft Motor vs. Other Linear Technologies Linear Shaft Motor Linear Shaft Motor Traditionally, linear electric motors have been designed by “opening out flat” their rotary counterparts. For every rotary motor there is a linear motion counterpart, although the opposite of this statement may not always be true. Thus, corresponding to the DC motor and AC induction, stepper and synchronous motor, we have the Linear DC Motor (DCLM), Linear Induction Motor (LIM), Linear Pulse Motor (LPM), and Linear Synchronous Motor (LSM), respectively. Although this does provide a solution, a number of...

Linear Shaft Motor vs. Other Linear Technologies Coreless Design with Ultra-High Stiffness Platen style linear motors rightly boast high levels of stiffness due to their iron core. This iron also results in the creation of eddy currents which generate large amounts of heat while allowing moderate amounts of heat dissipation. The iron core also introduces large amounts of absorption forces, between the stator and armature, and cogging into the linear motion. U-shaped linear motors on the other hand use epoxy as their core which does not create eddy currents or any absorption force. This type...

Linear Shaft Motor vs. Rotary-to-Linear Technologies Linear Shaft Motors provide direct thrust for the positioning of the payload. It eliminates the need for a rotary-to-linear conversion mechanism. Example: ball-screw, rack and pinion, toothed belt. No Lubrication/ Adjustment Maintenance Necessary The Linear Shaft Motor requires no greasing, as is necessary with a ball-screw, and has no performance degradation because of wear/aging as with ball-screw and belt drive systems. Because the Linear Shaft Motor is maintenance-free, there is significant cost reduction throughout its life-span. The...

Linear Shaft Motor vs. Rotary-to-Linear Technologies 1 Extremely High Precision /Low Speed Uniformity/High Repeatability The Linear Shaft Motor enables a level of precision not achievable in ball-screws, and allows you to drastically improve the yield of high precision process, which is limited by other linear mechanisms. Realizes High Speed Motions while Retaining High Precision The Linear Shaft Motor’s high precision in high-speed operation shortens the travel time required by ball-screws. Good Resistance Against Environmental Changes such as Temperature For precision operation, other...

Linear Shaft Motor Features and Applications A wide range of applications are possible by utilizing one or more of the features of the Linear Shaft Motor listed on these two pages. Friction free and quiet High thrust The Linear Shaft Motor's moving parts are all non-contact. All sources of noise and friction are eliminated, allowing use in quiet and clean room surroundings, such as test laboratories or medical facilities. Environmental compatibility Peak thrust of up to 100,000 Newtons is achievable. Can be used for precisely conveying heavy loads such as clinical equipment or transfer...

Linear Shaft Motor Features and Applications The Linear Shaft Motor can be mixed and matched to achieve the desired load thrust, based upon the complexity of the application. Single Drive System This is a basic drive system. The X and Y shafts can be used to create an X-Y stage. No speed fluctuation Multi-Drive System Ideal for constant speed drug dispensing which may be difficult to achieve with lead-screws or ball-screws. Multiple forcers can be used with a single shaft to support complex movements required by of some applications. Tandem Drive System Two or more forcers can be used on...

Linear Shaft Motor Real Life Applications Linear Slider In this application, a single Linear Shaft Motor was used with a servo driver, motion controller, linear encoder, and linear guide (bearing). • • • • Linear Shaft Motor: S160T Stroke: 300mm Thrust: 15N Resolution: 0.082μ to 5μ (settable in eight levels within this range) • Maximum operating speed: 7.2 meters per second A Linear Shaft Motor was selected because of it’s high speed and acceleration along with high precision. Linear Station In this application, two Linear Shaft Motors were used in blood testing equipment. A single Linear...

Linear Shaft Motor Real Life Applications High Precision Stage In this application, a single Linear Shaft Motor was used for a high precision granite stage. • • • • • • • Linear Shaft Motor: S320D Stroke: 40mm Thrust: 56N Resolution: 0.14nm Controller: UMAC made by Delta-Tau Data Systems, Inc. Servo driver: SVDH5-A made by Servoland Linear Encoder: Laser scale P/N BS55A made by Sony Manufacturing System (±0.04 micrometers on 40 mm effective length) • Interpolator: BD95-T12 by Sony Manufacturing System (Resolution is 0.14nm) • Linear guide: Air slider The Linear Shaft Motor was selected...