What are the applications of single stand multi slot reducing mills in the mechanical industry

      Characteristics of single stand multi slot reducing mills equipment: Multiple rolling grooves are set on the single stand rolling mill, and the workpiece is reduced multiple times in the same stand in a reciprocating/sequential manner, without the need for multiple stands in series; Suitable for small and medium-sized batches, multiple specifications, rod and tube outer diameter compression. Compared with multi stand continuous rolling, it has low equipment investment and flexible specification change. Carbon steel, alloy steel, stainless steel, copper and aluminum can all be processed.

1、 Hydraulic, Hydraulic Cylinder and Construction Machinery Industry

1. Precision cylinder barrel and piston rod blank reduction for hydraulic cylinders

      Reduce hot-rolled scrap pipes and round bars to near the outer diameter of the finished product, improve roundness and straightness, and reduce subsequent turning allowances; Used for the processing of piston rod substrates for construction machinery oil cylinders, forklift oil cylinders, and metallurgical hydraulic oil cylinders, reducing machining costs and improving surface quality.

2. Construction machinery shaft and sleeve blanks

      Various types of hinge pin shafts, lining blanks, round steel reduced diameter forming, replacing some forging, suitable for small and medium-sized multi specification production.

2、 Automotive parts manufacturing

1. Drive shaft, half shaft, and shock absorber rod blanks

      Multi pass diameter reduction of round bars to obtain stepped shaft blanks, reducing the amount of lathe cutting; Adapt to the machining of chassis rods and shock absorber core shafts.

2. Pre treatment of cold heading raw materials and fastener rod materials

      Round steel is used for bolts, nuts, and high-strength fasteners. Through reducing diameter rolling, the outer diameter tolerance is stabilized and the surface quality is improved, providing high-quality billets for subsequent cold heading and reducing the risk of cold heading cracking.

3. Raw materials for gearbox gear shaft and small transmission shaft

      Gear steel, 40Cr, 42CrMo and other alloy steel rods are reduced in diameter to obtain high-precision rods.

3、 General Machinery, Motor and Pump Valve Industry

1. Precision rolling of motor shaft, fan shaft, and pump shaft rod material

      Reduce the outer diameter of the round rod, control its roundness and straightness, and directly use it as a semi-finished shaft product to reduce machining hours.

2. Seamless pipe fittings and valve stem blanks for pumps and valves

      Reduce the diameter of stainless steel and alloy steel pipes/bars, and process valve stems and small valve body fittings blanks.

3. Front rolling of spring bar material and spring steel wire

      Reduce the diameter of spring steel bars and supply them for subsequent wire drawing processes.

4、 Pipe processing and fluid heat exchange equipment (heaters, heat exchangers)

1. Reduction and sizing of heater core tubes and heat exchange tubes

      Seamless steel pipe raw pipe reduction, processing various types of fluid heaters, heat exchangers, and cooler core pipe blanks to ensure consistency in outer diameter, facilitating subsequent laser welding and tube plate assembly, and improving the welding assembly qualification rate.

2. Pre treatment of precision seamless small tubes and instrument tubes

      Small and medium-sized carbon steel pipes and stainless steel pipes are reduced in diameter through multi groove reciprocating reduction to improve ovality.

5、 Hardware, standard parts, textile machinery components

1. Raw materials for textile machinery roller shafts, guide rods, and tension rods

Various types of optical axes and guide rods are reduced and rolled to obtain semi-finished bar products with stable dimensions.

2. Hardware optical axis, piston rod, and guide column blank

Replace some peeling processes, improve surface smoothness, and reduce grinding allowance.

6、 Metallurgical supporting facilities, special metal processing

      1. Small batch precision machining of special steel and bearing steel bars

Bearing steel, tool steel, small and medium-sized batches, multi specification orders, flexible switching of hole types for single frame and multiple slots, without the need to modify the entire continuous rolling production line.

      2. Reducing the diameter of copper and aluminum non-ferrous metal rods and tubes

Copper rod, aluminum rod, and copper tube outer diameter compression are used as blanks for conductive parts and pipeline fittings.

7、 Construction machinery and scaffolding accessories

      Reducing and sizing the diameter of scaffolding circular pipes and building support circular pipes, adjusting the outer diameter of the pipes, improving roundness, suitable for small-scale production of non-standard specification pipes.

8、 Applicable scenarios at the equipment process level

      1. Multi specification and small to medium batch production scenarios: Multiple grooves on the same rolling mill, switching passes can change the pressure reduction without the need to replace the entire machine frame;

      2. With the goal of reducing machining allowance: the outer diameter of hot-rolled rod tubes fluctuates greatly, and after multi groove reduction, the tolerance is tightened to reduce turning and grinding;

      3. Due to limited funds, it is not suitable for small and medium-sized processing plants to purchase a complete set of multi stand continuous rolling lines.