Parker-Origa introduces electric linear drives

Parker-Origa has introduced the Origa Drive System (ODS) range that encompasses screw, belt and linear motor driven systems.

Much of the design focus for the ODS has been on increasing repeatability, accuracy force and speed across the range, with the various models offering higher performance than previous generations.

As an example, the ballscrew driven ODS-SB version offers a repeatability 2.5-times more precise than the previous generation, and provides action forces up to 66 per cent higher.

Conventionally, users turn to linear motors for high speed, highly dynamic positioning, toothed belt drives for fast moving, medium loads, and screw drives for lower speed, precision positioning of medium to high loads.

By boosting the performance in all these areas across the whole ODS range, users have more freedom to choose the technology that best suits their needs.

One of the keys to the increased performance is a new guide system, with options for a plain bearing guide, roller guide or recirculating ball bearing guide.

The guide takes all of the load to allow much higher performance ratings over longer rail lengths.

The ODS is available in a basic profile version for supported lengths and also as a reinforced profile version for unsupported lengths, allowing the profile to be used in free-standing applications without the need for additional profiles or specially manufactured supports to reinforce the drive.

A standard bore pattern simplifies mounting of the drive, but individually tailored bore patterns can also be provided to meet individual application requirements or to make it easier to align combinations of axes.

Further, an alternative fixing system using T-slots in the body profile provides an almost unlimited range of assembly options.

The ODS is available either with covers or as an open version.

The uncovered version provides IP20 protection class, but the covered version provides IP54 ingress protection.

Parker-Origa's option of a specially-designed cover provides reliable protection in real-world application environments throughout the operating life of the drive.

All additional fittings can be located beneath the covers to avoid the damage that could occur in harsh or damp environments if they were mounted externally.

Attention to design has also delivered an improved external lubrication facility for the IP54 drives, allowing lubrication to be carried out from a central unit through external nipples without the need to remove the protective covers.

The modular design also offers a free choice of mounting position for limit switches, allowing users to set both end position and reference position sensing points.

Both reed contact and electronic switching versions are terminated at plug connectors located in the actuator end cap.

For applications involving high speeds or heavy loads, the end of travel limit switches can be combined with integrated shock absorbers for impact protection.

Where precise positioning throughout the length of the drive is required, Parker-Origa offers the option of a contactless, electromagnetic incremental distance measuring system, combining ease of fitting with high precision and integration into the underlying control system.

For applications where the drive has to be stopped and held under load, pneumatic or electric brakes are available.

The holding brakes are suitable for use with the drives in both horizontal and vertical mounting arrangements, accurately holding the driver or the workpiece being carried at precise positions.

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