• Trapezoidal lifting screws made of highly resistant rolled steel, short pitch designed for selfbraking carriages.
• 4 sliding rollers per carriage plus 4 sliding shoes guarantee a perfect adhesion and flowability.
• Mechanical stop device when the load bearing nut gets excessively worn.
• Oversized motor with thermal protection.
• Operating device composed by a microchip (PLC) for the regulation of synchronism and the automatic re-alignment as well as working modalities management.
• Latching emergency switch on every column.
• Supplied with greaser.