The Sigma 20, a high-speed sliding headstock turning center, is designed with the flexibility required in a job shop environment. This machine can turn simple to moderately complex parts. The counterspindle is as powerful as the main spindle, allowing operators to perform simultaneous machining to minimize cycle times, the company says. The machine is capable of turning parts as large as 1" in diameter. It offers a total of 22 tool positions and three double live spindles for a total of six axes for cross milling front or back.
The turning center has Swiss stability evident in its one-piece core motor direct-drive spindles, 5/8" tool shanks, 7-hp drive, synchronous rotary guide bushing and the rigid one-piece cast iron base with built-in, pre-cast cooling channels. Tool versatility (eight to 16 front tools and eight backworking tools can be used in any combination), simultaneous machining on front and back spindles and optimized ergonomics allow easy machine operation, the company says.