Hebei Xinggong Machinery Manufacturing Co., Ltd.

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Building the Xinggong brand through quality.

Thread Rolling Machine Series

Reducing Machine Series

Rock Bolt Drilling Rig Series

Thread-rolling machine series

Product Center

SJ-16 Type Diameter Reducer

SJ-16 Type Diameter Reducer

This machine tool is a non‑cutting machining device, offering advantages such as high production efficiency, simple processes, ease of operation, material savings, and stable product quality.

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SJ-36 Type Diameter Reducing Machine

SJ-36 Type Diameter Reducing Machine

The SJ-36 diameter‑reducing machine is a non‑cutting machining device that offers high production efficiency, a simple process, ease of operation, material savings, and stable quality. It employs hydraulic technology to cold‑press and form the portion of round steel requiring diameter reduction by feeding it into a dedicated die cavity. This process significantly increases the density of the compressed section, thereby enhancing the material’s tensile strength, while maintaining its ductility and impact toughness. As a result, the strength of the threaded portion and the shank are uniform, eliminating the drawbacks associated with reduced tensile strength and impact toughness caused by lathe‑turned surface removal.

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SJ-46 Type Diameter Reducing Machine

SJ-46 Type Diameter Reducing Machine

The SJ-46 diameter‑reducing machine is a non‑cutting machining device that offers high production efficiency, a simple process, ease of operation, material savings, and stable quality. It employs hydraulic technology to cold‑shrink and form the portion of round steel requiring diameter reduction by feeding it into a dedicated die cavity. This process significantly increases the density of the reduced section, thereby enhancing the material’s tensile strength, while maintaining its ductility and impact toughness. As a result, the strength of the threaded portion and the shank are uniform, eliminating the drawbacks associated with reduced tensile strength and impact toughness caused by lathe‑turned surface removal.

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SJ-60 Type Diameter Reducing Machine

SJ-60 Type Diameter Reducing Machine

A diameter‑reducing machine is a non‑cutting machining device that offers high production efficiency, simple processes, convenient operation, material savings, and stable quality. It employs hydraulic technology to feed round steel, threaded steel, and similar workpieces into specialized dies for cold extrusion. This process significantly increases the density of the steel in the extruded parts, thereby enhancing their tensile strength—without compromising ductility or impact toughness. As a result, the strength of the screw shank and the rod section becomes uniform, addressing the drawback of lathe‑turned peeling, which typically reduces both tensile strength and impact toughness. The diameter‑reducing machine is an ideal solution for manufacturing anchor bolts, foundation screws, and long‑rod screws used in mining applications. 1. The diameter‑reducing machine is equipped with a lifting pile, on which wire ropes of appropriate length and diameter can be suspended.
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