Royal Quick-Grip™ QG-80 S-Type Master Collet
S-30 Collet Pad Model (3" Capacity)

Accepts S-30 collet pads (3″ capacity).
*Please note – normal thru-capacity is reduced when using S-type master collets and pads.
**S-type pads not included with master collet. Order pads separately through your local tooling supplier.


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Occasionally, customers express interest in using S-type collet pads to grip their parts. Although this outdated technology is typically not the best choice for most workholding applications, S-type collet pads can be utilized with Royal Quick-Grip™ CNC Collet Chucks via our Quick-Grip™ S-Type Master Collets. These master collets are available for Royal QG-65 and QG-80 chuck models, and are capable of accepting S-20, S-26, and S-30 collet pads.

  • It is important to note that the master collet must be installed in the chuck prior to pad installation, thereby mitigating the system’s quick-change advantage.
  • Royal QG-80 master collets contain four segments instead of our traditional six, requiring the use of a special four-segment changing tool (sold separately). The model 65 utilizes the same installation tool as our standard QG-65 collets.
  • Due to the stacking of tolerances and complex geometry, the use of S-type collet pads will result in a significant reduction in accuracy. Most S-pad manufacturers will not guarantee their pads to run better than 0.001" – 0.0025" TIR. By contrast, Royal hardened and ground Quick-Grip™ collets are guaranteed accurate to 0.0002" TIR.
  • The use of S-type pads reduces overall Quick-Grip™ chucking capacity.

The Bottom Line

Using S-Type Collet Pads in a Royal Quick-Grip™ Collet Chuck may come in handy for some jobs, but their use will eliminate the quick-change feature and cause a reduction in both gripping capacity and overall system accuracy.For the highest accuracy, best performance, and full Quick-Grip™ functionality, it is always best to utilize hardened and ground Royal Quick-Grip™ Collets.

Fits Chuck ModelQG-80
S-Type Pad ModelS-30
Maximum Pad Capacity3.00

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