magnetic rotary table free sample

Our direct drive rotary tables provide high torque and are easy to integrate. They contain high-energy magnets in a simplified mechanical design and drive loads directly without the need for a transmission mechanism or gearbox. It allows customers to build them right into a drive system for flexible placement and integration with cooling pipes and cables, for example.

We supply a wide range of frameless motors, and our adjustable motors include an optical encoder, scale, bearing and housing. Given our selection, it can be challenging to choose the best direct drive motor for your project. Our engineers prefer to help you find the right rotary table for your requirements.

Our most popular rotary motor, the AXD series is characterized by a slim, compact "pancake" design with high peak and continuous torque despite the motor"s quite small form factor.Direct drive and brushless motor

The ACD series is a set of ironless rotary tables. This motor is cogging-free and features high-resolution optical encoder feedback and low speed variability. This permanent magnet motor is equally suited for either low or high speed applications.Zero cogging coreless motor

The chuck is a specialized clamp-type used to hold objects with radial symmetry like drills or perforators. By fixing magnetic rotary table on the front part of your rotary tools, you will be able to fix various tools and parts such as screws, nuts, drills, and cutters. Having a chuck in your toolkit will allow you to finish your jobs quickly thanks to its versatility and practicality.

magnetic rotary table can also be used to fix a workpiece. This small tool facilitates the transition between different activities, like going from drilling to screwing. Furthermore, you can also use it as a rotating element in drawn glass manufacturing. Some chucks are composed of retractable keys, which give you more freedom in your work and improved performance.

You will find various types of wholesale magnetic rotary table in our online collection. The jawed chucks are one of the popular types, and they often have three jaws. They are ideal for gripping circular or hexagonal cross-sections. The four-jawed chucks are also available, and they are generally suitable for gripping square or octagonal material.

We also have other modern types of magnetic rotary table. For example, the collet chuck is perfect for small-sized bar stocks, and you can operate it by hand or by power. Another modern type is the magnetic chuck, which is perfect for holding ferromagnetic workpieces. Without forgetting to mention the vacuum chucks that you can use to hold non-ferrous materials such as plastic, aluminum, and stone.

The basic version, M-035.50 rotating table, is equipped with a micrometer drive and a zero-backlash magnetic coupling. The micrometer provides a positioning range of ±9.5 degrees.

M-036 high performance series of closed-loop servo motor driven precision rotation tables provide the highest resolution, excellent repeatability and minimum wobble. The stages are equipped with double rotational ball bearings for minimum backlash and high load capacity. Both the rotation platform and the scale ring (graduated in 2-degree increments) can be independently coarse positioned over 360 degrees and then be locked by screws.

Linear Motors can be used in cleanroom environments. In fact, many front-end semiconductor applications have linear motors in use. In wafer manufacturing plants, high-precision lithography machines, for example, use linear motors in XY positioning tables with very high accuracy (nanometer resolution) and submicron accuracy in cleanroom classes according to ISO 2.

After about 100mm, the magnetic field is weaker than the geomagnetic field. If the magnetic trajectories are still shielded by iron, for example at the torque engines, virtually no magnetic field can be measured outside the housing.

Linear Motors can be used in cleanroom environments. In fact, many front-end semiconductor applications have linear motors in use. In wafer manufacturing plants, high-precision lithography machines, for example, use linear motors in XY positioning tables with very high accuracy (nanometer resolution) and submicron accuracy in cleanroom classes according to ISO 2.

After about 100mm, the magnetic field is weaker than the geomagnetic field. If the magnetic trajectories are still shielded by iron, for example at the torque engines, virtually no magnetic field can be measured outside the housing.

The mill rotary table is one of the main accessories of milling machine. As a precision work positioning device, it is widely used for indexing drilling, milling, circumferential cutting, boring, etc. The rotary turn table for milling machine is made from HT200 casting with high quality. It has already passed the ISO9001 quality system certification. They are are very popular on the market for their superior performance, excellent design and reasonable cost.

Both vertical and horizontal with two functions. Circle cutting, indexing drilling, milling and more complicated work are possible when the vertical position of the table is used together with the tail part.

Yes, encoders can be used to determine payload positions on Velmex slides and tables. We offer inductive and magnetic encoders for UniSlide® and BiSlide® linear stages and rotary encoders for the Rotary Tables and the compact XSlide™. You would also need a readout like the VRO™ to interpret the data being transmitted by the Encoder.

The design of the XSlide™ does not allow the use of a linear encoder. The carriage of the XSlide rides on the outside of the ways. A linear encoder would inhibit the movement of the carriage. Therefore, a rotary encoder fixed to the lead screw at the end of the XSlide is a better solution. They measure lead screw rotation with a typical resolution of 0.001" or 0.01 mm.

Yes, Velmex offers an number of options, in addition to the linear and rotary encoders, to measure travel. In most cases, these options would be used with manually-operated stages. They include:

Boasting a 1300 mm footprint, the TO1300 suddenly makes larger scale applications possible that previously seemed out of reach− as current direct-drive tables are relatively small and limited to a diameter of 750 mm. Additionally the TO1300’s high-tech drive operates predominantly without mechanics or gearboxes.

For challenging tasks of this nature, a mechanical heavy duty table is typically the logical choice. Due to their gearing ratio, however, these tables don’t fare well in service life calculations for use at such high speeds as the needle bearings simply suffer from too much wear.

The correct alternative is a direct drive; which inspired the development of the TO1300. With a direct drive, only one bearing is under load which is virtually free of backlash. The table is low-wear and easily capable of delivering the desired dynamic performance requirements.

Unique to the TO1300 is that customers can customize it to their individual requirements. For example; they can make a modular selection between bearings, encoder and motor, and thereby alter the following table characteristics:

A specialist in automation, WEISS also offers many sizes for the TO series direct-drive rotary indexing tables; ranging from small to very large. Optimal solutions for specific application challenges can be achieved from the series wide range of options. Each TO model is also available in a version with a cleanroom certificate.

Corporate Profile: An integral part of the Weiss global network, Weiss North America (ISO-9001 Certified) leverages over 45 years of reliable world-wide expertise to comprise an integrative, customer-specific approach to its vast array of electromechanical products. Our 100% vertical range of manufacturing ranges from rotary indexing tables, handling systems, and linear assembly systems−providing flexible technology for turnkey solutions that incorporate electronics, mechanical systems, software, and comprehensive engineering support. This enables us to provide pre-installed, intelligent, and highly convenient solutions for the entire field of kinematics.

The advantages of no friction, high precision, and cleanliness make magnetic levitation technology attractive in high-precision industrial applications, such as semiconductor lithography, mechanical micromachining, and so on. Nowadays, considering that mechanism manufacturing requires precision translational and rotational motion, different types of magnetically levitated positioning systems have been developed [1,2,3]. The magnetically levitated rotary table (MLRT) is a typical motion control equipment using a magnetically levitated (maglev) actuator, which is suitable to produce the accurate multiaxis motion for micro-machining [4]. However, the magnetic force and torque characteristics are difficult to be described accurately [5,6], and the unmodeled dynamics in the system, such as the non-uniform winding of the coils, the inaccurate magnetizing of the permanent magnet and the measuring noise in the sensing system, inevitably exist in the system design. These adverse factors degrade the motion performance of the maglev positioning system. It is necessary to improve the active disturbance rejection ability for a certain maglev rotary table.

In the past few years, a variety of control strategies have been proposed for the maglev system. Some researchers employ the classical control to design the controllers. Lu et al., employ the PID controller to realize the motion control of the maglev motor [7] and rotary table [4]. Li et al., in [8], use the specified PD control for stabilizing the unstable maglev system and the integral control for eliminating the steady-state error. Kim et al., obtain the full state of the maglev positioning stage via the position sensors, and then employ the state feedback control to realize the precision positioning [9]. Silva-Rivas et al., design a planar maglev system [10], where the Kalman filter is employed for the state estimation and the linear quadratic regulator for the optimal control. Fallaha et al., use the sliding mode control in the maglev system to inherent the measuring noise of the sensors [11]. These controllers are convenient for implementation with acceptable dynamic performance. However, suffering from the model mismatch and external disturbance, the classical control methods cannot realize the satisfactory motion profile. In order to improve the tracking performance of the maglev system, researchers have attempted the advanced control methods. Zhang et al. and Chen et al., propose the adaptive sliding mode controller to deal with uncertainties and improve the robustness for the planar maglev system in [12] and [13], respectively. Basovich et al. in [14], compensate the identified disturbance via an iterative output feedback control strategy to improve the payload capability of the maglev system. Intelligent control algorithms such as neural network and data-driven control can also improve the disturbance rejection ability in a systematic fashion as discussed in [15,16,17]. Even if the various advanced control methods develop continuously, many of them need enough computation resources to promise the real-time solution for the implementation of the controller. Considering the simplicity structure, proportion-integral-derivative (PID) is still the most popular control algorithm in practical engineering with good robustness and high reliability [18]. It is meaningful to study the PID-based MLRT, which improves the practicality of the magnetically levitated technology for industrial application.

In practice, the disturbances and uncertainties resulting from the measuring noise, external contact, varied payload and so on, affect the motion performance of the maglev positioning system for mechanism manufacturing equipment. Obviously, classical PID controller lacks the sufficient disturbance rejection capacity, so the control loop should take some reforms to overcome the shortcomings. It is noted that industrial machines often perform the repetitive trajectory for planar contouring [19,20], such that the iterative learning control (ILC) scheme is an effective feed-forward compensator [21,22,23] for this type of motion task. Additionally, ILC is able to optimize the control signal independent of the accurate system model, which is suitable for the maglev system because the accurate dynamics of the maglev system are hard to model. Therefore, the ILC is employed in the controller to improve the tracking performance for the repetitive trajectory. On the other hand, the disturbance observer has been used successfully for the active disturbance rejection in the industrial applications [16,24], as the influences from the external disturbance and system uncertainties are decreased with the control input signals compensated by the estimated disturbance. Thus, the estimated disturbance is inserted into in the feedback loop of the MLRT controller to inhibit the external disturbance in this work.

The rest of the paper is organized as follows. The dynamic model of the maglev rotary table is introduced in Section 2. Section 3 describes the proposed iterative learning PID control method with disturbance compensation. In Section 4, the comparative experiments are carried out to highlight the superiority of the proposed control method. Section 5 gives the conclusions.