Machine shop of PJSC Betonmash, equipped with modern metal-working machinery, includes a heat-treatment area, refurbishment area, machine-assembly area, experimental area (including spring winding area), tool shop.
Lathe machines allow treating details with up to 1000 mm diameter over the machine body and up to 650 mm diameter over the support having up to 5000 mm length. Programmable lathe machines treat details with up to 7th accuracy class with roughness up to Ra 2.5 with up to 630 mm max. diameters and 1400 mm center-to-center.
Available vertical turning lathes allow treating details with up to 8th accuracy class having 3200 mm max. diameters and 1600 mm height (rotary table max. diameter 2800 mm)
Boring machines with digital indication treat details with 7th accuracy class and have their limits – spindle 160 mm, lengthwise travel 1250 mm, heads (vertical) 2000 mm, table size 2500x2500 mm (plate 4500x4200), table travel 1000 mm, column cross travel 3150 mm, detail max. weight 16 tons.
Max. detail dimensions to be treated by milling machines – length 3100 mm, width 1000 mm, height 850 mm, max. detail dimensions to be treated by planning machines – 4000x1050x1120 mm, by slotting machines with rotary table - size 630 mm, max. external surface treatment height - 500 mm, internal – 250 mm.
To manufacture toothing PJSC Betonmash has gear-hobbing machines, which treat straight or oblique outer teeth up to the modulus 24 mm with max. workpiece diameter 3000 mm with 8-8-8B accuracy. Besides there are gear-shaping machines for internal teeth having max. module 12 mm, diameter 800 mm and form cutter travel 200 mm. The area is equipped for manufacturing heavy duty toothed gears with barrel teeth up to modulus 10, as well as with a gear tooth grinding machines, which grind teeth up to the modulus 6 mm, diameter 320 mm and gear ring width up to 180 mm (accuracy class 7-7-7C and roughness up to Ra 1,25). At its disposal PJSC Betonmash also has spline-hobbing machines for splining up to m=6 at the length up to 925 mm.
Grinding machines are: surface grinder for details max. 630х2000х500мм or with a circular table having 1000 mm diameter; circular grinder with max. grinding diameters 400 mm at the length of 2000 mm; internal grinder – diameter 200 mm with depth 200 mm.
Thermal treatment area of the machine shop has the following equipment:
- box furnaces with internal chamber dimensions 600x1100x500 and max. temperature 900°С;
- drawing furnace 700x1200 mm, temperature 700°С;
- carburizing furnace 750x1300 mm, temperature 1000°С;
- PEO-1-1216 programmable bogie furnace, smelting chamber 1400х740х800, temperature 1250°С;
- VCG M unit (high frequency generator) with annular inductor to temper details with high-frequency current (HFC).
Spring winding area consists of two production lines:
- workpiece gas heating line – bar diameter up to 50 mm, stretched length of the spring 300 mm with height less than 380 mm.
- workpiece electrocontact heating line – bar diameter up to 33 mm, bar length up to 4200 mm, height up to 380 mm.