Over the past few years NKMZ gathered essential experience in designing and reconstruction of cutting machines, section, small-section and rod mills.   There were reconstructed cross-cutting machines of cold steel strips at OJSC "Severstal" and length-cutting machines of hot steel strips at Engels pipe plant (Russia). It allowed increasing quality of output product.

  Cross-cutting machine APR 5-25x2350 was commissioned at Magnitogorsk Iron and Steel Plant in 2010.

CCM 5-25x2350 CROSS-CUTTING MACHINE

1. Charging car and decoiler
2. Unbender unit with straightening rollers
3. Thickness gauge
4. Guillotine shears
5. Centering rollers
6. Trimmimg and side-chopping shears
7. Sheet straightening machine (LPM N1)
8. Brush gear
9. Ultrasonic unit
10. Draw rollers
11. Flying guillotine shears
12. Centering guide bars
13. LPM №2
14. Sheet surface control system
15. Roller table
16. Marking machine
17. Sheet pilers

  The machine is designed for steel strips cutting cut-to-length with sheared edges; goods are packed.

  The machine technological plan assures performance of the following basic operations:

  - uncoiling;
  - coil flexion straightening;
  - strip thickness control intended for thick ends determination;
  - trimming of strip end and trimming if necessary billets for samples;
  - prestraightening of sheet straightening machine №1 strip;
  - trimming of edges on circular shears with subsequent edges cutting on scrap cutting shears and transportation of crops into containers: - strip
  - cut-to-sheet cutting;
  - straightening of sheets with the help of sheet straightening machine №2;
  - automatic noncontact ultrasonic quality control for surface and internal defects of the base metal and near edge zones in order of the consequent rejection of sheets with defects and their transfer to subquality production pocket;
  - automatic control of top and bottom sides of sheets for surface defects as well as control of strip saber, width and flatness;
  - automatic marking of each sheet;
  - sheet piling;
  - control of sheet piles weight;
  - mechanized cross-sectional binding of sheet piles in several places longwise.

The machine is equipped with the necessary hydraulic and lubrication equipment as well as with control process automation systems. It assures the following:

  - high efficiency;
  - specified values of cutting quality;
  - quality control of surface and sheets metal integrity;
  - sheet piled binding preventing their spreading during onward transporting and warehouse storage;
  - servicing accessibility of all the mechanisms by workshop crane.

Technical data of APR 5-25x2350