The Hardinge 5C2 quad-spindle indexing system is suited for small- to medium-sized parts of virtually all shapes. Each spindle can accommodate a 50-lb (23-kg) part with an axial thrust of 1,000-lbs (4,448 N). The system sits on a base plate that measures less than 23"- (583-mm) long.
The high-load, tapered, dual roller bearings support heavy radial and axial loads. A hardened and ground steel worm drive shaft and cross-axis helical gear provide high accuracy with minimal wear, the company says, adding that double eccentrics provide fine gear mesh.
The curved front castings and extended noses provide spindle clearance and optimum tool access, the company says. The 5C threaded-nose spindles are 5" (127 mm) on center and accept collets, step chucks, expanding collets, manual chucks and fixture plates for gripping round, square, hex and odd-shaped parts without the use of an adapter. Closer options include a pneumatic collet closer with a through-hole or a high-force closer with adjustable grip force. Individual manual drawbars are also available as an alternative. All spindles are synchronized for aligned part orientation within 0.0002" (0.005 mm) and will index as fast as 360-degrees per second.
The unit can be run with an all-digital servo control that features multiple-line LCD display or via true fourth axis. The control can store as many as 50 programs with 1,000 steps in each program. Infrared sensing capabilities allow upload and download of programs from a Windows-based pocket PC.
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Damiano Casafina serves on the company’s executive board.