Uses: Used in electro-hydraulic switch machine railway switch conversion system products, hydraulic drive mechanism hydraulic cylinder piston rod, hydraulic cylinder key components, similar to the general hydraulic cylinder piston rod; Features: It is a kind of high-precision shaft parts used for axial movement. Most of the rod parts need to be ground. Generally, both ends are equipped with threaded (external or internal thread) interfaces, and the oil seal groove with O-ring in the middle requires high surface roughness and straightness. Process requirements: blanks are generally made of steel bars or forgings. The main processes include: heat treatment-turning-grinding-electroplating-post-plating fine grinding and other processes; the main processing equipment includes CNC lathes, CNC cylindrical grinders, quenching equipment, and electroplating equipment. Key inspection items: surface roughness, coating thickness, appearance scratches, straightness, cylindricity and other items;

Uses: Used for electro-hydraulic switch machine railway switch conversion system products. The steel sleeve fixes the position and direction of the hydraulic cylinder and the action rod of the hydraulic drive mechanism, and hydraulic cylinder components are installed in the middle and at both ends to fix the cylinder body to connect the oil circuit. Features: It belongs to a kind of shell parts. The main processing parts are installation planes, holes, etc., and the hole position and coaxiality are required. Process requirements: blanks are generally cast iron, the main processes include: rough milling plane-fine milling plane-drilling, boring and other processes; the main processing equipment has machining center (3 axis, 4 axis) and other equipment. Key inspection items: surface roughness, hole position, coaxiality, flatness and other items;

Uses: Used in electro-hydraulic switch machine railway switch conversion system products, hydraulic drive mechanism hydraulic cylinder piston rod, hydraulic cylinder key components, similar to the general hydraulic cylinder piston rod; Features: It is a kind of high-precision shaft parts used for axial movement. Most of the rod parts need to be ground. Generally, both ends are equipped with threaded (external or internal thread) interfaces, and the oil seal groove with O-ring in the middle requires high surface roughness and straightness. Process requirements: blanks are generally made of steel bars or forgings. The main processes include: heat treatment-turning-grinding-electroplating-post-plating fine grinding and other processes; the main processing equipment includes CNC lathes, CNC cylindrical grinders, quenching equipment, and electroplating equipment. Key inspection items: surface roughness, coating thickness, appearance scratches, straightness, cylindricity and other items;

Uses: Used for electro-hydraulic switch machine railway switch conversion system products. The steel sleeve fixes the position and direction of the hydraulic cylinder and the action rod of the hydraulic drive mechanism, and hydraulic cylinder components are installed in the middle and at both ends to fix the cylinder body to connect the oil circuit. Features: It belongs to a kind of shell parts. The main processing parts are installation planes, holes, etc., and the hole position and coaxiality are required. Process requirements: blanks are generally cast iron, the main processes include: rough milling plane-fine milling plane-drilling, boring and other processes; the main processing equipment has machining center (3 axis, 4 axis) and other equipment. Key inspection items: surface roughness, hole position, coaxiality, flatness and other items;

Uses: Used for electro-hydraulic switch machine railway switch conversion system products, the action rod is connected to the hydraulic cylinder to provide power, and the end is connected to the switch conversion mechanism. Features: It is a high-precision shaft part for transmission. The middle and both ends of the rod are equipped with mounting interfaces, which require high surface roughness and straightness. Process requirements: The blank is generally made of steel bar stock. The main processes include: heat treatment-turning-milling-grinding-milling-drilling-local electroplating-fine grinding after plating and other processes; the main processing equipment are CNC lathes, CNC cylindrical grinding machines, machining centers, quenching equipment, electroplating equipment. Key inspection items: surface roughness, coating thickness, straightness, cylindricity position and other items; Key inspection equipment: large and medium-sized precision coordinate measuring machine;