Mechanical assembly operations



  • Turret lathe and turning works:
    - parts production, such as, screws , nuts, washers, bushes, wheels, spindles, shafts etc., with diameter up to 4000 mm, length up to 25000 mm and weight up to 300 t.
  • Vertical turning works:
    - machining of the parts with diameter from 500 up to 13000 mm, height up to до 5000 mm, and weight up to 220 t.
  • Grinding works:
    - cylindrical grinding with minimum grinding diameter - 5 mm, maximum diameter - 2300 mm, maximum grinding length - 18000 mm, minimum radial runout - 0,002 micron per 600 mm diameter, roughness Ra - 0,1 micron;
    - internal grinding of the holes with diameter from 40 up to 300 mm, depth up to    1200 mm, accuracy according to 7th quality class.
  • Honing works:
    - honing of the parts with diameter from 60..to 700 mm, minimum honing length    90 mm and maximum honing length 5000 mm.
  • Super finish grinding and fine diamond grinding of rotary bodies external surfaces with provided accuracy of Ra 0,05 micron.
  • Deep hole drilling and boring works :
    - deep hole drilling of rotary bodies with workpiece length  - 600...25000 mm (length - 25000 mm with drilling diameter - 20...250 mm), drilling diameter - 40...250 mm and maximum weight of the blank — 250 t;
    - deep hole boring works with bore hole diameter - 250...2200 mm and workpiece length  up to 25000 mm (L=25000 mm with bore hole diameter 80...1000 mm, L=22000 mm with diameter 1000...2200 mm);
    - drilling-and-boring works for box-shaped and flange-like parts  with weight up to 100 t, minimum hole diameter - 5 mm and maximum hole diameter - 1100 mm.
    - gun drilling  of the holes with diameter from 10 up to 36 mm and maximum depth -1300 and 2300 mm correspondently, in box-shaped parts  with weight up to 40 tonnes.
  • Multitask geometrically-complex machining of box-shaped parts   according to CNC  control data by means of «machining center» units.
  • Gear-cutting works:
    - cutting of straight, spiral and herring-bone spur gears  from 1 to 75 mm module and part diameter up to 10000 mm, diameter up to 2000 мм according to 7th accuracy grade;
    - cutting of gear bushings with barrel tooth М=1...20 mm and  part diameter up to 2000 mm;
    - cutting of hourglass worms and hourglass worm wheels (rings) М=5...36 mm with parts diameter  up to 2700 mm and center-to-center spacing up to 1500 mm;
    - cutting of ring gears, holders, disks with  internal engagement М=1...36 mm and diameter 4500 mm;
    - cutting of pinion shafts with diameter up to 1600 mm, length up to 5800 mm and maximum module: hob gear -30 mm, disk cutter - 45 mm, end-mill type cutter -75 mm.
  • Vertical turning and grinding works:
    - machining of rotary bodies complex shapes with diameter 200...3200 mm and height up to 2000 mm according to CNC  control data.
  • EDM works:
    - high-performance EDM machining of tough and hard-tempered parts by vertical turning lathe within diameter range from 500 to 3800 mm and height up to 850 mm.
  • Assembly and metal works:
    - assembly and testing of hydraulic systems, individual cylinders and other vessels under pressure up to 1000 atmospheres  and different types of gearboxes with load up to 100 kNm.