Problems needing attention in choosing spring collet chuck

Standard claw chucks are often more effective for hot rolled steel, forgings and die parts because all such parts have inherent diameter variations. On the other hand, cold roll material parts often have good dimensional consistency, so Spring Collet Chuck is suitable for selection. However, the lack of consistent diameter measurements does not necessarily constitute an obstacle to the use of Spring Collet chucks. They can provide chucks designed for non-circular cross-section to hold moulded bars of the desired shape for customers.

The maximum allowable weight of the spindle of a lathe is based on the load capacity of the bearing. If the weight of the chuck and the workpiece combination is too large, the bearing may be overloaded. For those processing tasks that are dangerous beyond the limit, this danger may determine the choice of workpiece fixture. Claw chuck is often heavier than the same spring COLLET CHUCK. Therefore, spring Collet Chuck is the appropriate choice when weight control is needed.

Workpiece size spring chuck is very suitable for workpiece with diameter less than 3 inches. Spring chucks restrict the length of the workpiece. In particular, spring chucks restrict the axial (Z-axis) travel range of the machine tool because they are longer than chucks. When the processing length of the workpiece almost needs the whole available travel of the machine tool, it is probably necessary to use the claw chuck.

It is also important to consider the third option when choosing the most suitable workpiece clamping device between the claw chuck and the spring chuck. With permission, two fixtures are retained, from one replacement to the other, which may be the most cost-effective solution. Change from claw chuck to spring chuck or vice versa, usually no more than 20 minutes. Claw chuck can be retained on the machine to deal with uncertain parts. However, when machine tools process large quantities of workpieces, or several batches of parts of the same size, the productivity gains by using spring chucks greatly exceeds the productivity loss caused by the time spent in replacing fixtures.