CNC Swiss Machining

As a supplier to the medical and other industries that demand accuracy for these complex parts, Screwmatics of South Carolina stays ahead of the competition with Swiss-style machines, experienced operators, and our commitment to outstanding quality. Originally developed to create small parts for watches, Swiss machines are crucial in machining small or intricate products for a variety of industries where precision in smaller parts is required such as the medical, automotive, and electronics industries. Contact Screwmatics for more information about our Swiss-style machining capabilities.

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Precision Inspection

robotic handling
Citizen A20 CNC
Swiss style cnc

 

Swiss Style Sliding Head Stock Cincom Citizen 5 and 7 axis 20mm with live tooling and magazine load bar feed
Cincom Citizen 5 and 7 axis 25mm with live tooling and magazine load bar feed
2012 Tsugami BW 12 twin spindle, 7 axis, 12mm with live tooling and magazine load automatic bar feed

What is Swiss-Style Machining?

A Swiss-style lathe is a specific design of lathe providing extreme accuracy (sometimes holding tolerances as small as a few tenths of a thousandth of an inch—a few microns). A Swiss-style lathe holds the workpiece with both a collet and a guide bushing. The collet sits behind the guide bushing, and the tools sit in front of the guide bushing, holding stationary on the Z axis. To cut lengthwise along the part, the tools will move in and the material itself will move back and forth along the Z axis. This allows all the work to be done on the material near the guide bushing where it is more rigid, making them ideal for working on slender workpieces as the part is held firmly with little chance of deflection or vibration occurring. This style of lathe is commonly used under CNC control.

Most CNC Swiss-style lathes today use one or two main spindles plus one or two back spindles (secondary spindles). The main spindle is used with the guide bushing for the main machining operations. The secondary spindle is located behind the part, aligned on the Z axis. In simple operation it picks up the part as it is cut off, and accepts it for second operations, then ejects it into a bin, eliminating the need to have an operator manually change each part, as is often the case with standard CNC turning centers. This makes them very efficient, as these machines are capable of fast cycle times, producing simple parts in one cycle (i.e., no need for a second machine to finish the part with second operations), in as little as 10–15 seconds. This makes them ideal for large production runs of small-diameter parts.