MultiPierce Bulk-Feed Design Info

Operation

Bulk Pierce Nuts are fed into a Multipierce or Multimatic Head through plastic nut guide from a gravity or power feed device. Constant pressure from the feeder, transmitted through the nuts, keeps a nut under the plunger when in the "open" or "ready" position. The press, when lowered, forces the plunger to drive the nut into the part, supported by a die button. The die button forms the part material into and around the Pierce Nut undercuts and/or clinches the nut corners, securing the nut in position.

Die Design Information

Multipierce and Multimatic Bulk Feed Heads are designed into a die in the same manner as Multipierce and Multimatic Reel-Feed Heads; same access requirements exist. Refer to Multipierce and Multimatic sections for Head mounting dimensions.

Universal Pierce Nut
Ext		Shut Height		Open Height		Stroke		B
MM	In	MM	In	MM	In	MM	In	MM	In
12.7	0.50	130.2	5.125	161.9	6.375	31.8	1.25	25.4	1.00

38.1	1.50	155.6	6.125	212.7	8.375	57.2	2.25	50.8	2.00

57.2	2.25	174.6	.6.875	250.8	9.875	76.2	3.00	69.9	2.75

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