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[CN 201821418425.4] hydraulic press ejection cylinder
[CN 201821418425.4] Title of a hydraulic press ejection cylinder: Application number of a hydraulic press ejection cylinder: CN 201821418425.4 Applicant: Jiangsu Guoli Forging Machine Tool Co., Ltd. Application Date: 2018-8-31 Patent Type: Utility Model The utility model relates to a hydraulic press ejection cylinder, including a cylinder body, a cylinder bottom and a piston. The middle outer wall of the cylinder body is screwed with a large lock nut, and the cylinder body is a hot rolled seamless steel pipe with openings at both ends, A gland is installed in the lower inner cavity of the cylinder body, the outer step of the gland abuts against the inner step of the lower port of the cylinder body, and the outer periphery of the gland is embedded with a Glazing ring; the bottom of the cylinder abuts against the lower part of the gland and is screwed into the lower port of the cylinder body; a guide sleeve is embedded in the inner cavity of the upper port of the cylinder body, and the upper end of the piston rod passes through the inner hole, the inner and outer sides of the guide sleeve are sealed. The upper part of the piston rod is suit with a fastening cap. The lower end surface of the fastening cap is pressed on the top surface of the guide sleeve. The lower end of the outer edge of the fastening cap is screwed to the upper end of the cylinder. A set screw is screwed on the lower circumference of the set screw, and the inner end of the set screw is pressed on the upper end of the cylinder. The ejector cylinder has reliable sealing, convenient processing, low manufacturing cost and short production cycle.
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