A rolling mill stand is the machine in which steel is formed between two rotating rolls. It holds the rolls in position and absorbs the large rolling forces.
Design and function
Two housings form the frame. In their windows sit the chocks with the roll bearings. The screw-down, mechanical or hydraulic, sets the gap between the rolls and thus the thickness of the rolled stock.
Depending on the number of rolls, stands are called two-high, three-high and four-high. Four-high stands have thin work rolls supported by thick back-up rolls. In wire rod and bar mills many stands follow one another, alternately horizontal and vertical.
Where it is used
Mill stands work in hot and cold rolling mills for plate, strip, bars, wire rod, sections and tubes. Guides before and after the stand steer the stock precisely into the pass.
Typical spare and wear parts
- Roll bearings and chocks
- Screws, nuts and cylinders of the screw-down
- Roll guides: entry and delivery guides, guide rollers
- Wear plates of the housing windows
- Seals and hoses for cooling water and lubrication
What helps with a request
- Manufacturer and type of the machine or plant
- Designation, part number or drawing of the part
- Dimensions, material and a photo of the part or nameplate
- Quantity and required date
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