Hardinge adds indexingand rotary flexibility to themill table

Hardinge is demonstrating a concept for large part positioning centered around the company's collet-ready A2-5 spindle indexing concept. The same accuracy, precision, and reliability built into the Hardinge lathe now extends to their large-capacity indexing/rotary table systems. A variety of standard 16C or 3J spindle tooling will mount directly in or on the spindle without the use of an adapter. Hardinge adds the 16C and 3J indexing/rotary table system to their 5C product offering to provide rapid parts positioning as well as linear, arc, and spiral milling for different part sizes, shapes and materials. Common spindle tooling can be shared from indexer to lathe.

Collets, expanding collets, step chucks, and 3-jaw power chucks will automatically center the part and afford superior grip force for heavy cutting. The collet spindle design means that gripping is in the spindle, closest to the spindle bearings, unlike surface-mounted adapters used on traditional rotary tables. A 6 in. (152.4mm) centerline to base is standard, with a 1.625 in. (41.27mm) 16C, or a 1.750 in. (44.45mm) 3J through-hole capacity for the ability to swallow longer parts is optional. A pneumatic collet closer provides 4560- pound (2068kg) draw bar pull. A .625 in. (15.87mm) stroke allows the use of "power" chucks. Removable eyehooks located on the top or on the face of the indexing/rotary table system allow for installation to a mill table or assembly operation. The compact brushless motor can be ordered for either left or right-hand setup. The spindle has a true rolling element design with dual angular contact spindle bearings to accommodate heavy part weights and high tailstock thrust Speeds can reach up to 50 RPM or 300-degrees per second.

The 16C model will accept round stock capacities up to 15/8 in. (41.27mm), hex capacities up to 1- 13/32 in. (35.71mm), and square capacities up to 1-9/64 in. (28.97mm) using standard collets. The 3J model will accept capacities of up to 1-3/4 in. (44.45mm), 117/32 in. (38.89mm) and 11/4 in. (31.75mm) respectively. Hardinge indexing/rotary table system's servo control will store up to 50 programs with up to 1000 steps in each program with a multiple line display, meaning all critical data can be viewed.

Hardinge Workholding Elmira, NY hardinge.com Booth #A-8032