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Conventional lathes

ST 16k25 (B/S)

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Made in Russia

Lathes ST 16k25 series produced by StankoMashStroy are modern and upgraded analogues of Soviet lathe 16k25. The machines are rigid, accurate and reliable. Powerful spindle drive allows processing the workpiece of maximum length 2000 mm and diameter up to 500 mm." >
Made in Russia

Lathes ST 16k25 series produced by StankoMashStroy are modern and upgraded analogues of Soviet lathe 16k25. The machines are rigid, accurate and reliable. Powerful spindle drive allows processing the workpiece of maximum length 2000 mm and diameter up to 500 mm.
Parameters ST 16К25 ST 16К25B ST 16К25S
Maximum swing over bed mm Ø500 Ø500 Ø500
Maximum swing over cross-slide mm Ø300 Ø300 Ø300
Maximum length of the workpiece mm 1000/1500 1000/1500/2000 1000/1500/2000
Maximum turning length per one set mm 820/1320 820/1320/1820 820/1320/1820
Bore diameter mm Ø52 Ø82 Ø105
Spindle taper МТ. №6 Ø90 1:20 Ø113 1:20
Spindle nose ISO 702/III № 6
bayonet ring fixing type
ISO 702/II № 8
cam-lock type
ISO 702/II № 8
cam-lock type
Spindle speed rpm 9-1600 9-1600 36-1600
Number of speeds 24 24 24
Maximum spindle torque Nm 1400 1400 1400
Number and range of longitude feeds:
Standard mm/rev
(inch/rev)
0.063-2.52 (0.0023-0.0937) 0.063-2.52 (0.0023-0.0937) 0.063-2.52 (0.0023-0.0937)
Decreased mm/rev
(inch/rev)
0.028-0.056 (0.0010-0.0021) 0.028-0.056 (0.0010-0.0021) 0.028-0.056 (0.0010-0.0021)
Increased mm/rev
(inch/rev)
2.86-6.43 (0.1064-0.2392) 2.86-6.43 (0.1064-0.2392) 2.86-6.43 (0.1064-0.2392)
Number and range of cross feeds:
Standard mm/rev
(inch/rev)
0.027-1.07 (0.0011-0.0404) 0.027-1.07 (0.0011-0.0404) 0.027-1.07 (0.0011-0.0404)
Decreased mm/rev
(inch/rev)
0.012-0.026 (0.0004-0.0010) 0.012-0.026 (0.0004-0.0010) 0.012-0.026 (0.0004-0.0010)
Increased mm/rev
(inch/rev)
1.21-2.73 (0.0457-0.1032) 1.21-2.73 (0.0457-0.1032) 1.21-2.73 (0.0457-0.1032)
Number and range of threads:
Metric thread mm 0.5-224 0.5-224 1-14
Inch thread 72-1/8 tpi 72-1/8 tpi 28-2
Module thread 0.5-112 0.5-112 0.5-7
Worm thread 56-1/4 DP 56-1/4 DP 56-1/4 DP
Longitude rapid traverse rpm 4.5 4.5 4.5
Cross rapid traverse m/min 1.9 1.9 1.9
Thread pitch of the lead screw mm 12 12 12
Distance from the spindle to the tool base mm 28 28 28
Recommended size of the tool cross section mm 25х25 25х25 25х25
Compound rest angle ° ±90 ±90 ±90
Maximum travel of the longitude slide mm 145 145 145
Maximum travel of the carriage mm 320 320 320
Maximum cutting force H 12000 12000 12000
Maximum feeding force H 3500 3500 3500
Tailstock quill diameter mm Ø75 Ø75 Ø75
Tailstock quill taper МТ№5 МТ№5 МТ№5
Maximum travel of the tailstock quill mm 150 150 150
Cross travel of the tailstock mm ±15 ±15 ±15
Type of the main motor type 5АМХ132S4У3 5АМХ132S4У3 Y132M
Power of the main motor kW 7.5 7.5 7.5
Speed of the main motor rpm 1450 1450 1450
Type of the slide motor 2AOS 2AOS 2AOS
Power of the slide motor kW 0.250 0.250 0.250
Speed of the slide motor rpm 1360 1360 1360
Type of the coolant pump centrifugal centrifugal centrifugal
Type of the coolant pump motor АИР56 А2у2 АИР56 А2у2 АИР56 А2у2
Power of the coolant pump motor kW 0.180 0.180 0.180
Liquid flow at the end of the coolant pump l/min 25/32/50 25/32/50 25/32/50
V-belt В-series В-series В-series
Machine dimensions (LхWхH) mm 2560/3060х1020х1350 2560/3060/3560х1020х1350 2560/3060/3560х1020х1350
Machine net weight kg 2900/3200 3000/3300/3800 3000/3300/3800


Parameters ST 16К25 (with gap) ST 16К25B (with gap) ST 16К25S (with gap)
Maximum swing over gap bed mm Ø710 Ø710 Ø710
Operating area of gap bed mm 240 240 240

The machines are modern versions of 16k20 and 16k25 machines and can be applied in different branches of industry for various machining operations and different materials: outer and inner diameter machining; outer, inner, metric, inch, modular, worm threading; drilling, boring, reaming. Strong structure of the cast bed and its hardened precision-ground guideways provide professional machining and reliable stable work. Due to high-precision spindle bearings, the structure of the spindle unit and the whole machine is especially rigid. This allows heavy-duty machining, fully using the motor power. The machines are manufactured using advanced technology, they are easy to operate and keep precision for a long time. Hardened and precision-ground helical gears of the main spindle improve performance, insure quiet operation and long operating life of the machine and smoothness of gear shifting.

Gear Box

Gear Box

The gear box is used for reducing the speed of spindle rotation. It has 24 speed steps in the range from 9 to 1600 rpm. All the gears are heat-hardened, which increases their wear resistance. The lubrication system insures good cooling and fiction reduction, stabilizing errors caused by thermal deformation of the headstock during cutting.

Feed Gear Box

Feed Gear Box

Ensures the travel of the slide and tool on the machine guide ways with the set speed. This part is used to set the constant feeding rate while cutting or tapping.

Tailstock

Tailstock

Used for clamping rotary cutting tool and as an additional support, applied with dead or live centers, while hard cutting.

Slide

Slide

This is a part of the machine, used for tool holding, and enabling longitudinal and cross traverse of the tool. This unit of the machine is highly rigid, which reduces occurrence of errors caused by elastic strain of the slide system during cutting.

Steady Rest

Steady Rest

Used as an additional support while cutting long work pieces to reduce elastic strain.

DRO

DRO

DRO is applied on ST16k25 Series, as an option for the precision control of the longitudinal and cross tool travel. Thus, the operator can perform works with accuracy equals of DRO resolution.

    Standard accessories:
  • Coolant supply system with a pump 25 l/min;
  • Foot brake of spindle;
  • Halogen light;
  • Chuck safety guard;
  • Splash guard;
  • Installed drive belts, a set of 4 pcs;
  • Lead screw protection and drive shaft protection, a set of 2 pcs;
  • Tailstock;
  • Adapter sleeve into spindle bore;
  • Follow rest D20…80;
  • Steady rest D20…125;
  • Chuck adapter D250;
  • 3-jaw chuck D250;
  • Z axis adjustable stop;
  • Dead center МТ5, for tailstock;
  • Dead center МТ5, for adapter sleeve;
  • Live center МТ5;
  • 4-position tool holder;
  • Hook spanner 45-52;
  • Hook spanner 115-130;
  • Hook spanner 150-160;
  • Tool holder wrench;
  • Adapter wrench;
  • Operation manual (passport);
  • Grease gun;
  • Vibration mount ОВ-31М.
    Optional accessories:
  • Coolant supply system with a pump 32 l/min;
  • Coolant supply system with a pump 50 l/min;
  • DRO for 2 axes with the screen, a set;
  • Steady rest of a bigger diameter D120…220;
  • Chuck adapter D315;
  • Chuck adapter D400;
  • Center chuck D250;
  • 3-jaw chuck D315;
  • 4-jaw chuck D400;
  • Tool holder safety guard;
  • Taper attachment ±10°;
  • A set of soft solid jaws for 3-jaw chuck D250;
  • A set of inside hard jaws for 3-jaw chuck D250;
  • A set of outside hard jaws for 3-jaw chuck D250;
  • A set of soft solid jaws for 3-jaw chuck D315;
  • A set of inside hard jaws for 3-jaw chuck D315;
  • A set of outside hard jaws for 3-jaw chuck D315;
  • A set of universal jaws for 4-jaw chuck D400;
  • Holder ECLNL 2525M12 or analogue;
  • Insert СNMG 120408M-IW for holder ECLNL 2525M12 (divisible by 10);
  • Insert СNMG 120404N-UZ for holder ECLNL 2525M12 (divisible by 10);
  • Holder ECLNR 2525M12 or analogue;
  • Insert СNMG 120408M-IW for holder ECLNR 2525M12 (divisible by 10);
  • Insert СNMG 120404N-UZ for holder ECLNR 2525M12 (divisible by 10);
  • Holder ETJNL 2525M16 or analogue;
  • Insert TNMG 160408N-IW for holder ETJNL 2525M16 (divisible by 10);
  • Insert TNMG 160404N-IW for holder ETJNL 2525M16 (divisible by 10);
  • Holder ETJNR 2525M16 or analogue;
  • Insert TNMG 160408N-IW for holder ETJNR 2525M16 (divisible by 10);
  • Insert TNMG 160404N-IW for holder ETJNR 2525M16 (divisible by 10);
  • Holder EWLNL 2525M08 or analogue;
  • Insert WNMG 080408N-IW for holder EWLNL 2525M08 (divisible by 10);
  • Holder EWLNR 2525M08 or analogue;
  • Insert WNMG 080408N-IW for holder EWLNR 2525M08 (divisible by 10);
  • Additional set of drive belts, 4 pcs.