Product category:
Position, speed and torque measurement
News Release from: Parker Hannifin | Subject: 400XR series
Edited by the Processingtalk Editorial
Team on 10 September 2003
Low cost linear positioning table
Parker Hannifin has launched a cost-engineered version of its highly popular 400XR series of linear positioning tables, aimed specifically at factory automation applications
The Electromechanical Division of Parker Hannifin has launched a cost-engineered version of its highly popular 400XR series of linear positioning tables, aimed specifically at factory automation applications that do not require ultra high positioning accuracy on every axis The new 404XE series tables feature the same rugged construction as other 400XR series products, but at significantly reduced cost; for example, a 404XE table costs 20-35% less than a comparable travel 404XR
This article was originally published on Processingtalk on 19 Jun 2008 at 8.00am (UK)
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System designers and machine builders are now able to mix and match the most appropriate positioning technology on a per axis basis, for maximum control flexibility and cost-effectiveness.
404XE linear positioning tables are available in 'short carriage' and 'long carriage' configurations, to best suit the payload requirements.
The short carriage versions can accommodate normal loads up to 61kg and offer a choice of 14 different travel lengths, spanning 25 to 700mm.
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The long carriage versions can handle loads up to 122kg and offer 12 different travel lengths, from 33 to 633mm.
Both are capable of repeatable bi-directional positioning to an accuracy of +/-20 microns, reducing to +/-30 microns for longer travel models.
All 404XE tables are equipped with recirculating square rail bearings and high efficiency rolled ballscrew drives, and are rated for 100% duty cycle operation.
The ballscrew drive is available with a choice of 5, 10 or 20mm pitch, enabling users to easily satisfy any desired resolution/velocity ratio.
Depending upon the chosen travel length and drive pitch, many of the tables can handle positioning speeds up to 1500mm/sec, and all the long carriage versions can accommodate acceleration rates as high as 20,000mm/sec/sec.
In common with other 400XR series tables, the 404XE has a robust extruded aluminium body, with T slots along its length to accommodate any mounting requirements.
The 404XE is compatible with the mounting arrangements of the Parker precision 400XR series ballscrew tables and LXR linear motor tables, enabling designers to configure mixed technology multi-axis motion control systems easily.
The carriage assembly features precision dowel holes to facilitate accurate registration of the payload, and ensure highly repeatable mounting.
Multi-axis XY and XYZ systems can be supplied ready-pinned by Parker, in order that factory orthogonality may be reproduced at customers' premises without further machining; this significantly reduces assembly costs and eliminates the risk of contaminating any of the units.
404XE series tables accept industry-standard stepper or servo motors, which can be mounted in-line or in parallel with the drive shaft, the latter configuration being ideal for applications where physical length is an issue.
Parker offers a wide variety of Oldham and bellows type couplers to transfer torque from the motor, together with a comprehensive range of motor mounting flanges and adaptor plates.
Further options include fully-adjustable travel limit and home sensors, and an electromagnetic brake assembly for preventing vertical carriage movement in the event of power loss.
For applications demanding relatively high positioning accuracy, 404XE tables can be fitted with a rotary encoder or a linear position feedback device.
The 1250 lines/rev rotary encoder attaches directly to the table's drive shaft, and is particularly useful for minimising any mechanical error when using a parallel mounted motor.
The magnetic linear position feedback device mounts directly on the table carriage and has a 5 micron resolution.
The 404XE low cost linear positioning table forms the latest addition to Parker's renowned 400XR family.
This linear positioner family is one of the most extensive in the industry, offering more than two million product configuration options. Request a free brochure from Parker Hannifin ...
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