T20 – 130/155/180 CNC EN


Short Description

The lathe series logo_new_solution owing to application of innovative mechanical solutions combined with the advanced control and programming systems guarantees efficient roughing and finish-machining. Design of the lathe is supported on rigid bed provided with hardened guideways fully supported on foundation and a rear chips spout. The design of the referred massive lathes features solutions ensuring favorable vibration damping and outstanding rigidity. The effect covers high accuracy, repeatability and excellent finish of surfaces treated providing reliability. The wide range of accessories enables further increase of machining efficiency.

Main technical data

Four-guideway bed

Maximal spindle torque                                                                                      25000 Nm

Maximal work piece weight in centres                                                               20 000 kg

Turning length                                                                                                   3-20 m

Max. chips cross section for steel Rm=55 kG/mm2                                            25 mm2


For more information on the machine please download technical specification in PDF file. Attention: the manufacturer reserves the right to change technical specifications.



1 General features of the machine

1.1           four-guideway bed cast of cast iron of advanced mechanical properties, standardized, suitably ribbed, supported on foundation along the entire length (on the leveling wedges);

1.2           longitudinal carriage travelling along two guideways ensuring perfect precise guidance and collision-free operation with steadies and a tailstock;

1.3           guideways of the bed and of the carriage hardened to hardness of minimum 45 HRC;

1.4           travel of longitudinal and transversal carriage provided with anti-friction materials and aided with central lubrication;

1.5           body of a headstock cast of cast iron of advanced mechanical properties;

1.6           spindle supported on bearings of advanced accuracy class;

1.7           all shafts and gear wheels are carburized, hardened and grinded

2 Standard execution

2.1           swing over bed – Ø 1300 (T20-130 CNC);

2.2           spindle bore – Ø 140 mm / 4-710 rpm;

2.3           turning length 3-4m (Z axes travels provide from ball screw);

2.4           X axes travels provide from ball screw;

2.5           main motor power – 55 kW (continuous operation);

2.6           SIEMENS SINUMERIK 840D sl Operate numerical control system with basic turning function. Basic equipment: OP10C – 10,4” TFT color display, TCU, MCP 483C PN, electronic hand wheel;

2.7           Voltage supply: 3x400V/50 Hz;

2.8           automatic 4-post tool head – vertical axis;

2.9           automatic change of a range of headstock rotational speeds;

2.10        central lubrication controlled by CNC;

2.11        chip conveyor;

2.12        cooling system for tools – 4 bars 100 l/min;

2.13        installations for connecting lighting on the carriage;

2.14        tailstock including Ø 240 quill provided with a rotary spindle, an indicator of clamping force and compensation of workpiece elongation, including automatic quill slide out and sliding travel along the bed;

2.15        dead centre Morse’a No. 6 – 1 piece for tailstock;

2.16        shields of working area;

2.17        control panel movable along with a carriage;

2.18        bolts for levelling and anchoring on foundation;

2.19        CE certificate of conformity;

2.20        User manual.

3 Optional execution

3.1           swing over bed – Ø 1550 (T20-155 CNC);

3.2           swing over bed – Ø 1800 (T20-180 CNC);

3.3           turning length: 5-20 m, every 1m including drive in Z axis provided from racks backlash less transmission and partial shields of the working area;

3.4           additional carriage;

3.5           Proposed options for – 2.6:

3.5.1       ShopTurn (machining step programming) (P17)

3.5.2       additional languages (N00)(English, French, German, Italian, Spanish, Chinese- standard)

3.5.3       simultaneous recording (real-time simulation of the curr. machining) (P22)

3.5.4       additional HMI user memory on CF card of the NCU (P12)

3.5.5       residual material identification and machining (P13)

3.5.6       mini HHU (handheld unit) with hand wheel

3.5.7       other options on request

3.6           tailstock 2.14 – including automatic quill clamping, clamping to the bed;

3.7           1-way change tool post;

3.8           automatic 8-post tool head including driven tools (CNC drive) and controlled C axis provided from main motor – horizontal axis;

3.9           automatic 8-post tool turret for driven tools (CNC drive), Y axis (CNC drive) and controlled C axis provided from main motor – horizontal axis;

3.10        automatic 8- positions turret head – horizontal axis;

3.11        linear readout system with Z and X axis;

3.12        measurement system purposed for a tool and a workpiece;

3.13        tank for chips instead of chip conveyor;

3.14        air-conditioned control cabinet;

3.15        other execution complying with arrangements with a customer.

4 Special equipment

4.1           stationary steady of roller type Ø 50-450mm

4.1.1       slide cap

4.2           stationary steady of roller type Ø 450-750mm

4.2.1       slide cap

4.3           stationary steady of roller type Ø 450-950mm

4.3.1       slide cap

4.4           3-jaw iron lathe self-centring chucks, full jaws – Ø 630;

4.5           4-jaw iron lathe independent chucks, full jaws – Ø 630;

4.6           other chucks depending on customer’s requirements;

4.7           boring attachment Ø 130/1000;

4.8           boring attachment Ø 160/1250;

4.9           boring attachment Ø 200/1500;

4.10        reduction sleeve of Ø 140 spindle/Morse’a No. 6;

4.11        dead centre Morse’a No. 6;

4.12        tool holders up to customer’s requirements;

4.13        levelling bridge to check the bed;

4.14        test mandrel of the spindle.

5 Technical Data

T20-130 CNC T20-155 CNC T20-180 CNC
Swing over bed Ø mm 1300 1550 1800
Swing over carriage Ø mm 1100 1300 1550
Centre distance (every 1 m) mm 3000-20000
Max. load capacity carried between centres kg 20000
Max. load capacity carried with one steady kg 24000
Max. load capacity carried with two steadies kg 28000
Max. load capacity carried in the chuck kg 2000
5.1        Headstock
Spindle bore Ø mm 140
Spindle taper size A1-15
Range of revolutions (infinitely variable adjustment) rpm 4-710
Number of speed ranges number 4
Main motor power kW 55
Maximal torque at the spindle Nm 25000
5.2        Carriage
Rapid traverse X axis mm/min 4000
Rapid traverse Z axis mm/min 5000
Longitudinal travel mm 3200 for 3000 mm turning + every 1m
Transversal travel mm 700
Diameter of X ball screw Ø mm 63×10
Diameter of Z (3 – 4 m) ball screw Ø mm 80×16
Drive of Z axis for 5-20m length racks backlash less transmission
Tooling system 4-post automatic head / other
5.3        Tailstock
Quill diameter Ø mm 240
Quill travel mm 200
Internal taper Morse’a No. 6
5.4       Overall dimensions and other data of the lathe
Length mm 2900+turning length
Width mm 3300
Height mm 2500
Mass of the lathe for 3000 mm turning kg 17000 17800 18600
Additional mass per 1000 mm kg ~1900
Control system SIEMENS SINUMERIK 840D sl

6 Stationary steady of roller type

General features:

  • installed on bed;
  • manually fixed to bed;
  • manually set quill

Types according point 4.1. – 4.4. offered as a special equipment:

  • Stationary steady of roller type Ø 50-450mm
  • Stationary steady of roller type Ø 450-750mm
  • Stationary steady of roller type Ø 450-950mm