Ceramic Plungers

Product Details

Bruin Instruments offers ceramic coated plungers for increased corrosion and wear resistance. The coating consists of sub-micron ceramic particles bonded to a stainless steel plunger. The chemical bond, particulate hardness and polished surface finish of the dense ceramic result in unrivalled wear resistance with improved protection from the harshest of chemical environments.


The coating increases surface hardness and improves the component life significantly. An extremely fine grain structure reduces friction and gives the plungers extraordinary wear resistance. The solid, porosity free coating creates an anti-fouling barrier and increases plunger life in the most corrosive environments.

  • Low Friction, Increased Packing Life
  • Extreme Wear Resistance
  • Increased Corrosion Resistance
  • Improved Anti-Galling Surface


The coating process produces no exposed porosity and completely protects plunger from corrosive chemical damage.


Composite Hardness: 1000 – 1800 Vickers
In comparison to standard plungers:

  • 17-4 Stainless Steel plungers: ~286 Vickers
  • 316 Stainless Steel plungers: ~150 Vickers

Ceramic Plunger Part Numbers

Plunger Size
3/16” 1/4″ 3/8″ 1/2″ 3/4″ 1” 1¼”
BR1200, BR4300 BB-1613 BB-1615 BB-1617 BB-1619 BB-1688 BB-1689 N/A
BR2400 N/A BA-6736 BA-6737 BA-6738 BA-6739 BA-6740 BA-6741
BR5000 N/A BA-6335 BA-6337 BA-6339 BA-6341 BA-6343 BA-6345
BR5100 BA-6286 BA-6288 BA-6290 BA-6292 N/A N/A N/A
BR6000 N/A BE-0036-01C N/A BE-0036-02C N/A N/A N/A
BRX3 BA-6687 BA-6688 BA-6689 BA-6690 N/A N/A N/A