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MNA1MLSDM00EN, V2.01, 07.2009
PAS4•S 1 Introduction
Portal axes with ball screw drive 9
1 Introduction
1.1 Overview of product properties
The ball screw axes are based on specially developed and particularly
torsion-resistant aluminum profiles. They excel with the their ability to
position heavy loads at changing torques with high feed forces and high
accuracy.
1.1.1 Product family
The linear axes product family consists of the following sizes:
• PAS42Sx (axis body cross section 60x60 mm)
• PAS43Sx (axis body cross section 80x80 mm)
• PAS44Sx (axis body cross section 110x110 mm)
The sizes differ in terms of outer dimensions, drive data, payload capac-
ities and maximum stroke.
1.1.2 Features and options of the linear axis
The linear axis excels with the following features and options:
• High positioning accuracy even at great ballscrew lengths due to
several moving screw supports
• Simple integration into systems and machines due to axis bodies
with slots
• Stroke length available precise to the millimeter
• Mounting thread with counterbores for locating dowels at the car-
riage for reproducible mounting of the payload
• Grease nipples at the side of the carriage for external lubrication
• Distribution of the payload to up to 3 carriages
• Optional cover strip
• Motor mounting via compact coupling system
• Sensors adjustable in T slots
1.1.3 Features of the linear guide
Recirculating ball bearing guide • High acceleration
• High load capacity
• High accuracy
• Suitable for high torques
• Optimum absorption of forces by the axis body