Steel Ball Skew Rolling Production Line

The working principle of spiral groove oblique rolling is shown in the figure. Two rolling rolls with spiral grooves intersect with each other, and the rolling rolls rotate in the same direction to drive the circular rolling piece to rotate and move forward. Under the action of the spiral groove, the rolling piece forms a rotating steel ball

The process of hot rolling steel balls

When hot rolling steel balls, first use an induction heating device to heat the round steel blank with a diameter about 4% smaller than the diameter of the rolled ball to 850-1100 ℃. The heated bar material is fed into the inclined rolling mill for rolling.

The axis of the rolling mill is inclined at a certain angle to the rolling line. There are spiral hole patterns on the rolling mill. The rolled piece spirals forward. Under the action of the spiral hole, the round steel gradually turns into a spherical shape, and the connecting neck between the spherical shapes becomes thinner and thinner, and finally breaks to obtain a steel ball. The rolled steel ball is further heat-treated to obtain the finished steel ball.

1. After inspection, round steel bars are cut into steel ball blanks (usually 5000mm-6000mm) according to a fixed length.

2. The steel ball billet is heated to a suitable temperature in an induction heating furnace before rolling.

3. After being fed into the steel ball rolling mill, the red hot steel billet rotates and advances between two rolls with special spiral hole patterns, and is continuously rolled into steel balls. Each steel ball rolling mill can produce 30-200 steel balls per minute.   

4. When the red hot steel balls are cooled to the quenching temperature after rolling, they immediately enter the drum quenching machine for quenching. The steel balls are collected and cooled in a collection box, and tempered in an offline trolley type resistance furnace to obtain high and uniform hardness.

5. The products that have passed the inspection are sent to the finished product warehouse, packaged, and then sent to the customer.

After thorough research by our company's engineering and technical personnel on the steel ball rolling production line, combined with the domestic and international steel ball market demand, we have developed and manufactured a new generation of steel ball rolling production line. We have also developed a series of automated complete sets of equipment for heating, rolling, and heat treatment, which are used to produce various specifications of steel balls with diameters ranging from 20mm to 125mm.

1. Technical after-sales service with professional engineers for overseas equipment.

2. On site technical service guidance and training for operators to proficiently operate the entire equipment.

3. The warranty period is 12 months and online permanent service is provided.