B1250

The B1250 series represents the state of the art in multifunction turning centers.
At the heart of this lathe series is the new turret with integrated motor and direct drive to the driven tools.
Available in several versions, the B1250 series offers a wide range of production capabilities:
from universal turning to complete machining of complex components using the CNC automatic tailstock, as well as shaft machining with a travelling steady rest and hydraulic tailstock.

✓
Higher precision
✓
Higher productivity

B1250

The B1250 series represents the state of the art in multifunction turning centers.
At the heart of this lathe series is the new turret with integrated motor and direct drive to the driven tools.
Available in several versions, the B1250 series offers a wide range of production capabilities:
from universal turning to complete machining of complex components using the CNC automatic tailstock, as well as shaft machining with a travelling steady rest and hydraulic tailstock.

✓
Higher precision
✓
Higher productivity
0
Available versions
0
mm
Max. machining length
0
mm
Max. swing diameter
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mm
Max. bar capacity

Biglia servo turret with direct drive

The fast (0.3 sec.) and robust 16-position BIGLIA servo turret, with hydraulic clamping by means of a large-diameter HIRTH coupling (230 mm), can accommodate up to 34 tools simultaneously.

The main innovation is the drive system, through which rotary motion is transmitted directly from the integrated motor to the rotating tool holder.

Biglia servo turret with direct drive

The fast (0.3 sec.) and robust 16-position BIGLIA servo turret, with hydraulic clamping by means of a large-diameter HIRTH coupling (230 mm), can accommodate up to 34 tools simultaneously.

The main innovation is the drive system, through which rotary motion is transmitted directly from the integrated motor to the rotating tool holder.

This new turret equipped with a cooled direct drive built-in spindle motor (10-17,5 kW - max. 10000* rpm) to drive the rotary tools represents the main feature of the new B750/B1250 series.

Live tools

B1250

ASA 8" Ø82mm

B1250

ASA 8" Ø95 / 102.5mm

B1250

Sub-spindle

B1250

The work-piece is automatically transferred from the main to the sub-spindle to allow the complete machining process on both sides.
The sub-spindle is equipped with B-axis load detection system and pneumatic ejector to check presence of the component (option) which allows you to perform safe machining operations.

CNC automatic tailstock (B-axis)

B1250

Both B750 and B1250 range of machines are equipped with the tailstock body that slides on flat slide-ways. Positioning is fully automatic.
The tailstock is operated by a servo motor and ballscrew (B-axis). This solution improves operating flexibility since position and thrust are CNC-controlled. It can also be used to perform simultaneously both drilling and turning.

Hydraulic tailstock

B1250

The tailstock is positioned by the turret-holding carriage (Z-axis). The stroke of the 115 mm diameter hydraulic quill is 150 mm. A rotating tailstock integrated to the quill is offered as an option on both B750/B1250.

Spindles

The spindles of the 1250 series, all liquid-cooled motor spindles and available with 95 mm and 102 mm bar capacity, are driven by very high-performance motors delivering up to 38 kW and 1014 Nm of torque at low spindle speeds.

They are built with a combination of cylindrical roller bearings and ball bearings, allowing high material removal rates while achieving excellent surface finish and roundness.

PREPARATION for travelling steady rest

The B1250 series can be prepared for a travelling steady rest, consisting of a CNC-programmable carriage with movement synchronized with or independent of the Z axis.
Movement is provided by an axis motor, rack and pinion, and geared motor.
A wide range of steady rests can be fitted, with a clamping range from 8 mm up to 235 mm.

Spindles

The spindles of the 1250 series, all liquid-cooled motor spindles and available with 95 mm and 102 mm bar capacity, are driven by very high-performance motors delivering up to 38 kW and 1014 Nm of torque at low spindle speeds.

They are built with a combination of cylindrical roller bearings and ball bearings, allowing high material removal rates while achieving excellent surface finish and roundness.

PREPARATION for travelling steady rest

The B1250 series can be prepared for a travelling steady rest, consisting of a CNC-programmable carriage with movement synchronized with or independent of the Z axis.
Movement is provided by an axis motor, rack and pinion, and geared motor.
A wide range of steady rests can be fitted, with a clamping range from 8 mm up to 235 mm.

AVAILABLE VERSIONS

B1250
Basic machine with CNC automatic tailstock

B1250M
12/16-position turret with driven tools
C axis
CNC automatic tailstock

B1250SM
12/16-position turret with driven tools
Main-spindle C axis
Sub-spindle with C axis

B1250Y
12/16-position turret with driven tools
C axis
Y axis
CNC automatic tailstock

B1250YS
12/16-position turret with driven tools
Main-spindle C axis
Y axis
Sub-spindle with C axis

B1250 ASA 8” 82mm

ø80
Max. bar machining diameter

552/450mm
Max. chucking diameter

1195mm
Max. machining length

680/500mm
Max. swing diameter

398-700 Nm, 15-22 kW, 3.200 rpm
MAIN SPINDLE

286 Nm, 30-40 kW, 4.500 rpm
SUB-SPINDLE

16/12, 32-56 Nm, 10-17.5 kW, 6.000 rpm
DRIVEN TOOLS

Robot
✓

Tailstock – Sub-spindle C axis
✓

B1250 ASA 8” 95-102.5mm

ø93-100
Max. bar machining diameter

552mm
Max. chucking diameter

1195mm
Max. machining length

680/500mm
Max. swing diameter

800-1014 Nm, 30-38 kW, 3.000 rpm
MAIN SPINDLE

286 Nm, 30-40 kW, 4.500 rpm
SUB-SPINDLE

16/12, 32-56 Nm, 10-17.5 kW, 6.000 rpm
DRIVEN TOOLS

Robot
✓

Tailstock – Sub-spindle C axis
✓

B1250 ASA 8” 102.5mm

ø100
Max. bar machining diameter

552mm
Max. chucking diameter

1195mm
Max. machining length

680/500mm
Max. swing diameter

566-772 Nm, 22-30 kW, 2.800 rpm
MAIN SPINDLE

286 Nm, 30-40 kW, 4.500 rpm
SUB-SPINDLE

16/12, 32-56 Nm, 10-17.5 kW, 6.000 rpm
DRIVEN TOOLS

Robot
✓

Tailstock – Sub-spindle C axis
✓

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