GN 724.4


  • Type C1: Chamfer, top
  • Type C2: Chamfer, bottom
  • Type C3: Chamfer, right
  • Type C4: Chamfer, left
  • Type CU: Unmounted


  • Steel precision casting ST

Weldable, blackened

  • Stainless steel precision casting AISI CF-8 NI


Pull ring

  • Steel precision casting

Zinc plated, blue passivated (for ST)

  • Stainless steel precision casting AISI CF-8 (for NI)

Plunger pin

  • Steel, hardened

Zinc plated, blue passivated (for ST)

  • Stainless steel AISI 431, hardened (for NI)

Socket button head screw DIN 7985

  • Steel, zinc plated (for ST)
  • Stainless steel AISI 304 (for NI)

Compression spring

Stainless steel AISI 316Ti

Indexing plungers GN 724.4 have a plunger pin with square cross-section, a latching surface on one side and a chamfer on the other. When the object to be secured moves towards the chamfer, the plunger pin is pushed back into the guide, allowing grooves and edges to pass over the pin. The plunger pin engages automatically in the direction of the latching surface.

The latching can be released by pulling the pull ring by hand or with a cable or pull rod using a hook. The types with rest position are used when the plunger pin should temporarily not protrude. For this purpose, the pull ring is turned sideways after the plunger pin has been retracted. The ring is held in this position by the catch recess at the top of the guide.

The dimensional tolerances between plunger pin and guide are selected so that the functional reliability is guaranteed even after welding, applying a corrosion protection layer or in case of contamination.

For fastening by welding, the unmounted type CU is particularly recommended to avoid changes to the microstructure of the material due to heating of the spring and plunger pin. In this case, the indexing plunger is assembled only after the surface treatment of the welded guide.

  • Range of Indexing Plungers 
  • Stainless Steel Characteristics 


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