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[CN 201680071022.4] forming machine, especially forging hammer
[CN 201680071022.4] Forming Machine, Especially Forging Hammer Title: Forming Machine, Especially Forging Hammer Application Number: CN 201680071022.4 Applicant: Langenstein and Sherman Co., Ltd. Application Date: 2016-9-12 Patent Type: Invention Application The present invention particularly relates to a forming machine (1) with an electromagnetic linear motor (9), which has a linear mover (11) and multiple coil units (36), the coil units each have a predetermined coil pole pitch (S) measured in the direction of the movement axis. The linear mover (11) has, in an alternating arrangement along its longitudinal axis (L), a first permanent magnet magnetized transversely to the longitudinal axis and a second permanent magnet magnetized in the direction of the longitudinal axis (L), the first permanent magnet having a predetermined first magnetic spacing (T1) and the second permanent magnet having a predetermined second magnetic spacing (T2), wherein the ratio of the coil width (S) to the first magnetic spacing (T1) is 3:1, and wherein the ratio of the first magnetic spacing (T1) to the second magnetic spacing (T2) is 2:1.
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