• Backlash-free guidance of the bar in rolling bearings, with diameter-specific plastic sleeves
• Top machining results in terms of surface and tolerances – even with shaped material
• Precise alignment of the bar stock to the spindle center
• Fast bar change through intelligent process flow and fast axis movements
• Automated measurement of bar length

The INDEX MBL65 is available in  two different sizes. The MBL65 version 3200 (weight approx. 2200 kg) is suitable for a bar length of 1500 mm to 3200 mm and requires a footprint of approx. 4245 mm in the longitudinal direction. The larger version 4200 (bar length 1700 mm to 4200 mm, weight approx. 2700 kg) requires approx. 5300 mm footprint in the longitudinal direction.

The bar loading magazine MBL65 can hold round bar stock from 10 mm to 65 mm diameter. For hexagon bars a width of 55 mm, for square bars a width of 46 mm is the upper limit. The servo motor for the bar feed unit has a feed force of 1500 N. Traversing speeds are up to 50 m/min in rapid traverse and up to 30 m/min path velocity on initial insertion of the bar stock. 

If a material change with a new diameter is required, the manual conversion work is kept to a minimum. All the operator has to do is to replace the plastic bushings (improved gripping properties) in the six bearing plates and to change, if necessary, the bar pusher rod or its bar-specific head. INDEX provides three bar pusher rod diameters for a broad range of bars up to 65 mm in diameter.

In total, the setup process of the bar loader – due to improved accessibility, less change parts and a semi-automated approach – will take less than 7 minutes, including setting up the spindle reduction and the spindle collet.