Www American Machinist Com Content Site304 Articles 10 01 2006 38599newequip01 00000017738
Www American Machinist Com Content Site304 Articles 10 01 2006 38599newequip01 00000017738
Www American Machinist Com Content Site304 Articles 10 01 2006 38599newequip01 00000017738
Www American Machinist Com Content Site304 Articles 10 01 2006 38599newequip01 00000017738
Www American Machinist Com Content Site304 Articles 10 01 2006 38599newequip01 00000017738

Direct-Drive, Super-Precision Rotary Indexing Available

Oct. 19, 2006
Hardinge's Workholding Division (www.hardinge.com) has introduced two quick-change rotary indexing systems. The systems incorporate direct-drive, rare-earth permanent magnet torque motors with no mechanical gearing. The frameless motors wrap ...
Hardinge's Workholding Division (www.hardinge.com) has introduced two quick-change rotary indexing systems. The systems incorporate direct-drive, rare-earth permanent magnet torque motors with no mechanical gearing. The frameless motors wrap around the spindle eliminating the need for a separate motor extension and resulting in a smaller footprint. Liquid cooling wraps around the motor stator housing to increase continuous torque output by 38 percent to 100 percent.

The A2-5, 16C High-Torque system is designed for difficult, high-precision machining or jig grinding applications that require 4- or 5-axis interpolated machining or for parts that require extremely accurate angular positioning. A pneumatic collet closer is equipped with a dual cylinder resulting in 4,560 lbs. (2,068 kg) of adjustable draw bar pull. The motor has a maximum torque of 195 ft-lbs. (264.4 Nm), continuous air-cooled torque of 63 ft-lbs. (85.4 Nm) and continuous water-cooled torque of 87 ft-lbs. (117.9 Nm).

The A2-4, 5C High-Speed system is designed to position extremely fast with a high degree of accuracy and without backlash. 3,600 degrees-per-second indexing speed, 4 in. (101.6 mm) spindle centerline height and a fail-safe, through-hole collet closer is standard. The motor has a maximum torque of 56 ft-lbs. (76 Nm), continuous air-cooled torque of 7.6 ft-lbs. (10.4 Nm), and continuous water-cooled torque of 15.0 ft-lbs. (20.4 Nm).