Parker: Brushless Torque Motors (145ST Series)

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Parker: Brushless Torque Motor in Complete Form (145ST Series)

Direct Drive Servomotors

Direct Drive technology has recently become more and more commonplace in machine and factory automation. Parker‘s Electromechanical Division has been well known for many years as a specialist in direct drive technology. Parker offers various kinds of torque motor, in "ready to run“ and kit form, as well as linear motors. These motors are ideal for solutions in printing machines, bending machines or machine tools which require extremely smooth rotation, especially at very low speed, and very high accuracy. Frequently there is also a requirement for a hollow shaft.

Designed with the aim of addressing new industrial needs, Parker has developed the ST range of low inertia motors for Direct Drive providing acceleration rates up to 20 000 rad/s2. The ST range is available in three diameters, 145 mm, 190 mm and 300 mm, with either hollow or solid shafts of 60 mm till 75 mm diameter respectively. Rated torques range from 15 Nm to 235 Nm in natural convection, with peak torques from 55 Nm to 1161 Nm. The motors can reach rated speeds of 200 min-1 till 1500 min-1 according to winding type and provide exceptional speed regulation at low speed.

The 145 mm, 190 mm and 300 mm ST ranges offer outstanding performance with a continuous torque-toweight ratio up to 3.7 Nm/kg and a peak torque-to-weight ratio up to 18 Nm/kg.

Parker has also expanded its product portfolio with a new range of Direct Drive frameless motors. Complementary to its ST range, these kit motors (stator + rotor) are designed to be integrated within machine tools such as rotary tables and grinding heads. These applications frequently require a large-diameter hollow shaft as well as high accuracy and speed regulation.

The new STK frameless motor range offers outstanding rated torque from 15 Nm to 2700 Nm in natural convection, and can reach 6100 Nm using fluid cooling. The peak torque is 3 times higher than the rated torque (up to 9000 Nm) and is available up to the rated speed.

The large-diameter hollow shaft provides an internal clearance between 56 mm and 630 mm.

Parker Direct Drive motors have been designed and industrialised with the aim of ensuring excellent performance as well as acceptable cost for users.

Compax3 - Servo Drives of the Third Generation- Modern digital control technology aids the realisation of highly productive and flexible automation solutions. It forms the basis of a stable control system and, most importantly, the precise positioning of linear actuators or other direct drive technologies. Without requiring any additional options, Compax3 supports diverse motor technologies including synchronous servo motors, linear servo motors and even torque motors.

Due to its inherently modular structure, the Compax3 intelligent servo drive can be employed in a wide range of industrial applications. Based on a standard version of the drive, Parker Hannifin is able to offer a large number of additional PLC- and advanced technology functions for the Compax3.

Designed with the aim of addressing new industrial applications, Parker has introduced the ST range of direct-drive low inertia motors offering very high acceleration rates. The ST range is available in three diameters, 145 mm, 190 mm and 300 mm, with either hollow or solid shafts of 60 mm till 75 mm diameter respectively. Rated torques range between 15 Nm and 235 Nm, based on natural convection, with peak torques from 55 Nm to 1161 Nm. The motors have rated speeds of 200, 500, 800, 1000 or 1500 min-1 according to the winding type and offer exceptionally smooth rotation at low speed.

The 145 mm,190 mm and 300 mm ST ranges provide an outstanding performance with a continuous torque-to-weight ratio up to 3.7 Nm/kg and a peak torque-to-weight ratio up to 18 Nm/kg.

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