Home Indexing and Positioning Elements Indexing plungers GN 724.4

GN 724.4

Indexing Plungers

Steel / Stainless Steel, with Chamfered Pin, for Welding

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Description

Specification

Types

Type C1: Chamfer, top

Type C2: Chamfer, bottom

Type C3: Chamfer, right

Type C4: Chamfer, left

Type CU: Unmounted

Guide

Steel precision casting ST

Weldable, blackened

Stainless steel precision casting AISI CF-8 NI

Weldable

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

Information

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 For this purpose, the pull ring is turned sideways after the plunger pin has been retracted.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.

Technical information

Range of Indexing Plungers

Stainless Steel Characteristics

GN 724.4-ST

	Color	b	s	a	d₁	d₂	l₁ ≈	l₂	l₃	l₄	l₅	Spring load in N≈ initial	Spring load in N≈ end
Code															Actions
GN 724.4-13-20-C1-ST	C1	13	20	6.5	34	6	68	10	35	1	41.5	14	35	149
GN 724.4-13-20-C2-ST	C2	13	20	6.5	34	6	68	10	35	1	41.5	14	35	149
GN 724.4-13-20-C3-ST	C3	13	20	6.5	34	6	68	10	35	1	41.5	14	35	149
GN 724.4-13-20-C4-ST	C4	13	20	6.5	34	6	68	10	35	1	41.5	14	35	149
GN 724.4-13-20-CU-ST	CU	13	20	6.5	34	6	68	10	35	1	41.5	14	35	149
GN 724.4-20-30-C1-ST	C1	20	30	10	48	9	102	15	54	1.5	60	22	70	515
GN 724.4-20-30-C2-ST	C2	20	30	10	48	9	102	15	54	1.5	60	22	70	515
GN 724.4-20-30-C3-ST	C3	20	30	10	48	9	102	15	54	1.5	60	22	70	515
GN 724.4-20-30-C4-ST	C4	20	30	10	48	9	102	15	54	1.5	60	22	70	515
GN 724.4-20-30-CU-ST	CU	20	30	10	48	9	102	15	54	1.5	60	22	70	515

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