GN 722.4-A4 Spring indexing plungers with ring or lever

Fixing by means of welding, AISI 316 stainless steel

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Technical specifications

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Main specifications

Versions

  • Type A: square body, mounted, with pull ring, without rest position.
  • Type AU: square body, unmounted, with pull ring, without rest position.
  • Type R: circular body, mounted, with pull ring, without rest position.
  • Type RU: circular body, unmounted, with pull ring, without rest position.
  • Type C: square body, mounted (riveted), with pull ring, with rest position.
  • Type CU: square body, unmounted, with pull ring, with rest position.
  • Type T: circular body, mounted (riveted), with pull ring, with rest position.
  • Type TU: circular body, unmounted, with pull ring, with rest position.
  • Type E: square body, mounted (riveted), with pull lever, with stop position.
  • Type EU: square body, unmounted, with pull lever, with stop position.
  • Type V: circular body, mounted (riveted), with pull lever, with stop position.
  • Type VU: circular body, unmounted, with pull lever, with stop position.

Guide / Pull ring

AISI 316 Stainless steel precision casting, weldable     A4

Lever

AISI 316 stainless steel precision casting

Plunger

AISI 316 stainless steel

Spring

AISI 316Ti stainless Steel

Grub screw

Stainless Steel A4

General information

Features and applications

In the GN 722.4-A4 spring indexing plungers the plunger pin is actuated by the pull ring or lever. This operation is performed manually, with a cable or by means of a pulling hook in the versions with pull ring. AISI 316 stainless steel is suitable for use in particularly aggressive environments.

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 AU 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 spring latch is assembled only after the surface treatment of the welded guide.

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