2-K Pistons

Nordson EFD offers three styles of pistons for use with our Cartridge Systems – Solid Multi-Seal Pistons, Multi-Seal with Integral Center Bleed Plug Pistons, and the new AF (Air Free) Pistons. Pistons are inserted after the cartridge has been filled with two-component adhesives. Each design has its own unique way of removing the air between the piston and the adhesive which is critical to dispense accuracy.

When using our Solid Multi-Seal Piston, a shim is required to allow entrapped air to bleed past the pistons during insertion. Alternatively, our Multi-Seal Piston with Integral Bleed Plug is a revolutionary piston style which bleeds air from the cartridge during piston insertion without the need of a shim, making the process easier and more efficient. Please note that all 2-K pistons are available in nylon or polypropylene (PP) and can be assembled O-rings, such as EPDM, silicon upon request.

AF Pistons

Available for 50ml, 200ml, 300ml, 1:1 ratio cartridges
Bleeds air around the circumference of the piston
without the need of a shim or second operation of
pushing in a plug.

For more information about AF Pistons click here