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New, Compact HRT 160SP Rotary Table


The compact design of the new Haas HRT-160-SP allows fitting of multiple units to multi-spindle machining centers with a spindle distance of 11” (or more), as well as to single-spindle machining centers. To increase productivity and efficiency, more than one HRT-160-SP can be run on single-spindle VMCs to machine multiple parts with fewer tool changes.


Designed with a narrow footprint, specifically for use with multi-spindle mills and pallet systems, the HRT-160-SP accommodates parts on a 6.3” (160 mm) platter. The rotary table's six standard T-slots easily accommodate six-inch chucks. The table mounts in the horizontal position, and allows feeding of parts through a 1.5" diameter thru-hole to a depth of approximately 6" from the face of the platter. 


Rotary tables decrease cycle times by providing versatility and flexibility in workpiece positioning. For example, a rotary table can rotate a part into position for each machining operation, eliminating the need to refixture, and the extra handling required for repositioning. The HRT-160-SP provides true simultaneous 4th-axis cutting (the A axis is fully interpolated with xyz axes) when mounted on Haas vertical or horizontal machining centers. Mounted on non-Haas machines, the HRT-160-SP allows non-interpolated rotation (semi 4th-axis) by using an M function to initiate positioning.


Accuracy and reliability of the rotary table are guaranteed by such features as a 0.5-hp DC servo motor with 63:1 worm gear ratio, a hardened and CNC-ground worm shaft with pre-loaded angular contact bearings, and a hardened precision-ground table. Backlash is reduced through use of a CNC-hobbed "deep-tooth engagement" worm gear. The HRT-160-SP provides accuracy of ±15 arc seconds with repeatability of 10 arc seconds. Resolution is 0.001 degree and maximum feed rate is 80 degrees per second.