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The KP-55 and KP-55B handpieces from KUPA's KP series, as well as several Medicool models (20K, 35K), can be replaced with this coil spring.

KP-55 Spring 520K20

by Ovation Spas
$4.00 - $4.00
$4.00
$4.00 - $4.00
$4.00

This is a coil spring designed as a replacement part for KUPA’s KP-series handpieces, particularly the KP-55 and KP-55B, as well as some Medicool models (20K, 35K). It helps maintain internal tension and alignment among components exposed to axial forces inside the tool.

Features

  • Restores correct preload/tension within the handpiece’s internal assembly, helping reduce internal play or looseness.

  • Contributes to consistent alignment of rotor/spindle parts under load, improving stability at high RPMs.

  • A worn or fatigued spring can degrade tool performance (more vibration, noise, reduced precision), so replacing it is part of proactive maintenance.

  • Cost-effective replacement: replacing a small part like this is far cheaper than dealing with damaged bearings, shafts, or housings.

Installation Tips

  • Confirm the existing spring matches the dimensions above (especially length and diameter).

  • Ensure that you're replacing the correct spring in the correct location — there may be multiple springs or versions inside.

  • When installing, seat the spring properly (not bent, not misaligned) so it exerts uniform pressure as designed.