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The machine was designed from POREBA as a machine for special application for producing a barrel type roll  for steel plant.

That is the reason why it was equipped  by producer with HEIT  electrical template.

That  electrical  template can be easy disassembled .

Technische Daten:

Capacities:

Height of centres over the flat way:              625 mm

Height of centres over the flat floor:            1225 mm

Swing over bed:                                             1250 mm

Swing over carriage:                                       940 mm

Diameter of four-jaw chuck:                         1250 mm

Workholding range of the chuck min/max.: 230/1050 mm

Distance between centres:                           5000 mm

Headstock:

Spindle bore:                                                   105 mm

Spindle seat:                                                    cyl. 105

Diameter of the spindle in the front bearing:  320 mm

Number of spindle speeds:                                24

Overall range of spindle speeds:                  1,6 - 315 rpm

Spindle drive motor rating:                            kW 75

Maximum torque of the spindle:                   63000 Nm

Carriage:

Width of the bed:                                          1100 mm

Length of the saddle:                                    1320 mm

Width of the cross slide:                               550 mm

Travel of cross slide:                                     800 mm

Travel of tool slide:                                       600 mm

Number of feed rates for each range:             20

Overall range of longitudinal feed rates:          0.18 - 160 mm/rev

Range of longitudinal feed rates at:

- high range of spindle speeds:                      0.18 - 5 mm/rev

- middle range of spindle speeds:                  0.18 - 40 mm/rev

- low range of spindle speeds:                       0.72 - 160 mm/rev

Overall renge of metric threads:                    1-192 mm

Overall range of inch threads:                       30 - 1/8 tpi

Overall range of mm per min feed rates:       11.2 - 320 mm/min.

Longitudinal rapid traverse:                           4000 mm/min

Rapid traverse motor rating:                          4 kW

Tailstock:

Diameter of tailstock quill:                                   280 mm

Diameter of tailstock spindle in front bearing:    170 mm

Seat ( taper ) of tailstock centre:                          Cyl. 70

Travel of tailstock quill:                                       200 mm

Rapid traverse of tailstock quill:                         300 mm/min

Rapid traverse of tailstock along the bed:          1500 mm/min

Overall dimensions and weight:

Length of the machine:                                     10700 mm

Width of the lathe:                                            2200 mm

Height of the lathe:                                           1930 mm

Load carrying capacity in the chuck

while the distance of gravity centre

from the face of the chuck is equal to 350 mm:    4 t

Load carrying capacity between centres

- without steadies                                              30 t

- with one steadt                                                35 t

- with two steadies                                            40 t

Weight of the machins:                                     38 t