Product category:
Linear Drives and Motors
News Release from: Copley Controls Corp | Subject: ServoTube
Edited by the Engineeringtalk Editorial
Team on 05 July 2005
Linear motor claims many productivity
advantages
The ServoTube linear motor is the new workhorse from Copley Controls, offering compelling productivity advantages over ballscrews, belt drives and pneumatic positioners.
The ServoTube linear motor is the new workhorse from Copley Controls, offering compelling productivity advantages over ballscrews, belt drives and pneumatic positioners Linear motors are used in pick-and-place and other applications that require linear travel
This article was originally published on Engineeringtalk on 10 Aug 2005 at 8.00am (UK)
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Linear actuator produces more power
Producing 1860N peak force the ServoTube 38 extends linear motor-based actuation to heavier duty applications.
High-rigidity actuator copes with radial loads
The latest version of the ServoTube actuator can support a radial load of up to 10kg in a single standard part.
The new ServoTube motor replaces delicate, costly, and difficult-to-align optical encoders with integral Hall position sensors.
ServoTube motors consist of two basic components - the thrust rod and forcer - and are intrinsically very robust mechanisms.
Eliminating the encoder - the weak link - re-establishes the motor's natural ruggedness, and enables it to meet international IP67 environmental specifications.
The motor's restored simplicity permits use with standard industrial fittings, removes installation difficulties, and paves the way for widespread integration into automation systems.
Owing to the motor's symmetrical configuration, its electrically powered forcer is surrounded by cooling air, permitting quiet operation without need for water or forced air cooling.
ServoTube motors are also free from the deep crud-accumulating channels of conventional U-channel linear motors, and can be washed down regularly.
ServoTube motor users can double or triple drive force by using two or three forcers on a single thrust tube.
More subtle: the two forcers can be controlled independently for different productivity enhancing functions.
(Forcer A loads, forcer B unloads, for example).
Eight ServoTube motor models span a wide range of force, acceleration and travel.
All motors are highly responsive to feedback control.
Specifications for four versions with 25mm diameter thrust rods include 51-102N continuous force and 311-778N peak force.
Dynamic specification are 8.7m/s maximum velocity and 256m/s2 peak acceleration.
Maximum travel is 1186mm.
All 25mm models provide 12um repeatability and resolution, and 250um accuracy.
Four larger models, with 38mm diameter thrust rods, are roughly three times as powerful.
ServoTube motors enable packaging, assembly, fabrication, and other automation systems to achieve new levels of productivity and uptime.
The motor's combination of simplicity, dependability, integration ease, high speed, and rapid acceleration, provide compelling reasons for equipment builders to make the transition from traditional pneumatic, ballscrew and belt drive positioning mechanisms.
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