2-Axis Multi-Spindle Rotary System

Hardinge's two-axis multi-spindle rotary system eliminates the need for sine plates and other expensive fixtures for angular milling when used on a three-axis VMC. The rotary system features dual-bearing spindles and a bearing pillow block for accurate positioning, the company says.

Hardinge's two-axis multi-spindle rotary system eliminates the need for sine plates and other expensive fixtures for angular milling when used on a three-axis VMC. The rotary system features dual-bearing spindles and a bearing pillow block for accurate positioning, the company says. The tilting fifth axis features the 16C(2) rotary unit, while the rotating fourth axis can be configured with either dual, triple or quad 5C threaded-nose spindles.

The rotary unit has a 360-degree tilt (± 180-degree from the 12-o'clock position). Optional adjustable hardware limit switches and programmable software limits are available to limit travel for protection when large workholding fixtures and parts are being machined. These safety features are available to reduce the risk of possible crashes when machining oversized parts. Pneumatic spindle clamps, located in the 16C(2) spindle and the end support bearing, eliminate slippage when performing high-force machining operations. The 5C(2) rotary configuration is precision aligned to the spindle center within ± 0.0005" (0.0127 mm).

The fourth-axis 5C(2) rotary unit indexes at 360-degrees per second with a maximum runout (TIR) of 0.0002" (0.005 mm). The 5C threaded-nose spindles accept collets, step chucks, manual chucks, expanding collets and face or fixture plates. Multi-spindle systems are available in dual, triple and quad configurations. Choose from pneumatic fail-safe, thru-hole collet closers. The fail-safe design ensures that parts will remain clamped if loss of air should occur.