Swiss Turning Machines

What You Need To Know About Swiss Turning Machines

Also known as Swiss automatic lathes, Swiss screw machines or Swiss lathes, Swiss turning centers are a unique type of lathe whereby the collet or holding mechanism is recessed behind the guide bushing. Unlike the conventional lathe, the Swiss lathe features a different holding mechanism that is not directly exposed to the tooling and the lathe bed. As a result of this, the machine tool has proven to yield several machining benefits.

When compared to the conventional CNC turning tools, Swiss turning centers provides a unique experience. There is a need for alteration in the way and manner machinists and programmers think about the machining cycles. This should be done in many different ways. They include:

Deflection correction

When it comes to machining on the workpiece, it is important to maintain precision throughout the process while supporting the workpiece with a guide bushing. Naturally, there will be deflection on those physical objects that are subjected to any force. Cutting forces can cause a great deflection particularly when it comes to the conventional lathes.

In most cases, the accuracy associated with the cut will suffer. But when working with Swiss turning centers the deflection caused from cutting forces is actually zero because the workpiece will closely support the guide bushing to the necessary tools. This implies that heavier cuts can be employed by the operator even while ensuring that the precise dimension on these parts is maintained.

Outstanding machine cycles

When many users finish a part in a single cycle particularly one that requires multiple operations on multiple machines, they quickly change their mind on the benefits of these machines. While the Swiss-type lathes come with 7 or more axes, the conventional type lathes often feature 3-4 axes. Many shop personnel – particularly first time users – have been amazed by the amount or work the machine can perform in a smaller work zone.

Oil opposed to water

Most Swiss-type machines employ greater lubricity because they use oil for their cutting fluids. Unlike conventional lathes, there are certain benefits that come along with the Swiss-type lathe. These include freedom from the growth of odor-causing bacteria. Due to constant exposure to water-based coolants, the use of oil for cutting fluid helps to prevent the occurrence of prune-like hands.

But when it comes to dissipating heat, the oil doesn’t seem to be as effective as water which is a major downside. This means that the work zone area of the Swiss-type machine can easily become very hot. To this end, it becomes highly important to equip the machine with fire-suppression systems.

The guide bushing is key

When it comes to working with Swiss-type machines, it is important to understand the role of guide bushing. As a matter of fact, it is the central part of the machine and sizing is very essential. Several concentricity errors can occur if an incorrectly sized guide bushing is used for the job. Another important factor to consider is the potential interaction of the guide bushing with the workpiece material.


Swiss Turning Machines