Biglia B750M
Image: bigliaspa.it, Biglia
Key Specifications
Max Spindle
Spindle Power
Max Turn Length
bar capacity
max turning diameter
swing over diameter
How much does the Biglia B750M cost?
Price estimate
We do not have a price for the Biglia B750M that we can stand behind, so we show no number. Configuration, options and installation move the final price a long way: a quote is the reliable figure.
Overview
Rotary tools and a C-axis are what the Biglia B750M adds to the B750 turning centre. Every station of the 16 or 12 position servo turret can carry a driven tool, the main spindle indexes as a C-axis with a minimum programmable value of 0.001°, and the CNC tailstock of the base machine stays in place.
Biglia gives the live tooling as 12/15 kW and 35/37 Nm, with a maximum speed of 6,000 / (10,000) rpm. The bracket matters. A footnote in the brochure says standard rotary tools limit the speed to 6000 rpm, so the higher figure needs holders made for it. The drive is a motor built into the tool plate that turns the tool directly, and Biglia calls this the main feature of the turret.
There is no Y-axis on this version. Milling is done with X, Z and C only, which suits cross holes, bolt circles and keyways on the centreline. Features that sit off-centre need the 140 mm of Y travel that the B750Y provides.
The turning side is unchanged. Travels are 305 mm on X and 860 mm on Z, machining length is 765 mm with a Ø 250 mm chuck, and there are three main spindles, from 70 mm bar at 4,500 rpm to 93/100 mm bar with 800-1,014 Nm. The servo tailstock positions over 910 mm, so a shaft can be turned between centres and then cross-drilled in the same clamping. Weight with swarf conveyor is 7,350 kg.
Full Specifications
| Parameter | Value |
|---|---|
| Bar Capacity | ASA 6" Ø70: 70 mm (2.8 in); ASA 8" Ø80: 80 mm (3.1 in); ASA 8" Ø93/100: 93/100 mm (3.7/3.9 in) |
| Max Turning Diameter | ASA 6" Ø70: 552/350 mm (21.7/13.8 in); ASA 8" Ø80: 552/450 mm (21.7/17.7 in); ASA 8" Ø93/100: 552 mm (21.7 in) |
| Max Turning Length | 765 mm (30.1 in) with Ø 250 mm chuck |
| Swing Over Diameter | 680/500 mm (26.8/19.7 in) |
| Max Spindle Speed | ASA 6" Ø70: 4,500 rpm; ASA 8" Ø80: 3,200 rpm; ASA 8" Ø93/100: 3,000 rpm |
| Spindle Nose | ASA 6" (Ø70 bar spindle) / ASA 8" (Ø80 and Ø93/100 bar spindles) |
| Spindle Bore | ASA 6" Ø70: 77.5 mm (3.1 in); ASA 8" Ø80: 91 mm (3.6 in); ASA 8" Ø93/100: 106/111 mm (4.2/4.4 in) |
| Spindle Bearing Inside Diameter | ASA 6" Ø70: 110 mm (4.3 in); ASA 8" Ø80: 130 mm (5.1 in); ASA 8" Ø93/100: 150 mm (5.9 in) |
| Chuck Size | ASA 6" Ø70: 250 mm (9.8 in); ASA 8" Ø80: 315 mm (12.4 in); ASA 8" Ø93/100: 400 mm (15.7 in) |
| Spindle Motor Power | ASA 6" Ø70: 30-40 kW (40.2-53.6 hp) (S1-S3); ASA 8" Ø80: 15-22 kW (20.1-29.5 hp) (S1-S3); ASA 8" Ø93/100: 30-38 kW (40.2-51.0 hp) (S1-S3) |
| Spindle Torque | ASA 6" Ø70: 286 Nm (211 lb-ft) (S1-S3); ASA 8" Ø80: 398-700 Nm (294-516 lb-ft) (S1-S3); ASA 8" Ø93/100: 800-1,014 Nm (590-748 lb-ft) (S1-S3) |
| Turret Stations | 16/12 |
| Tool Shank OD Turning | 25x25 mm (1.0x1.0 in) |
| Tool Shank ID Turning | 32-40 / 40-50 mm (1.3-1.6 / 1.6-2.0 in) |
| Turret Indexing Time | 0.3 sec (1 position) |
| Live Tool Stations | 16/12 |
| Live Tool Speed | 6,000 / (10,000) rpm |
| Live Tool Power | 12/15 kW (16.1/20.1 hp) |
| Live Tool Torque | 35/37 Nm (26/27 lb-ft) |
| C Axis Min Programmable Value | 0.001° |
| C Axis Rapid Traverse | 100 rpm |
| X Axis Travel | 305 mm (12.0 in) |
| Z Axis Travel | 860 mm (33.9 in) |
| Rapid Traverse X | 18 m/min (709 ipm) |
| Rapid Traverse Z | 24 m/min (945 ipm) |
| B Axis Tailstock Morse Taper | MT 4-5 |
| B Axis Tailstock Positioning Travel | 910 mm (35.8 in) |
| B Axis Tailstock Rapid Traverse | 15 m/min (591 ipm) |
| Coolant Tank Capacity | 300 L (79.3 gal) |
| Coolant Pump Flow | 60 L/min (15.9 gpm) |
| Coolant Pump Motor | 1.1 kW (1.5 hp) |
| Machine Dimensions | 528 x 203 x 248 cm (207.9 x 79.9 x 97.6 in), with swarf conveyor (last figure is the height) |
| Spindle Centre Height | 1,065 mm (41.9 in) |
| Machine Weight | 7,350 kg (16,204 lb) with swarf conveyor |
| CNC Control | FANUC i-HMI |
Specifications sourced from bigliaspa.it — verified 2026-10-05
Strengths & Limitations
Strengths
- Driven tools at 16 or 12 stations with 12/15 kW and 35/37 Nm available
- C-axis on the main spindle with 0.001° minimum programmable value and a 100 rpm rapid
- Keeps the B-axis CNC tailstock, with 910 mm of positioning and MT 4-5 centres
- Direct drive from a motor in the tool plate to the rotary tool, with no gear train in between according to Biglia
- Three spindle choices up to 93/100 mm bar and 30-38 kW
Limitations
- No Y-axis, so off-centre milling and true flats across a diameter are outside its range
- Standard rotary tools are limited to 6,000 rpm; the 10,000 rpm figure is printed in brackets
- No sub-spindle: back-face work means a second setup
- Live tool torque of 35/37 Nm is suited to drilling and light milling more than heavy slotting
Best For
Frequently Asked Questions
01
The B750M has rotary tools and a C-axis; the B750 has neither. Both keep the CNC automatic tailstock, the 305 mm and 860 mm travels and the same three main spindles. Biglia lists the B750M at 7,350 kg and the B750 at 7,250 kg, each with swarf conveyor.
02
The table prints 6,000 / (10,000) rpm. Biglia's footnote explains the bracket: maximum spindle speed is limited to 6000 rpm by standard rotary tools. Motor power is given as 12/15 kW and maximum torque as 35/37 Nm. Plan cutting data around 6,000 rpm unless higher-speed holders are specified with the machine.
03
Not with a linear axis. This version has X, Z and C but no Y travel. For off-centre work Biglia offers the B750Y, which adds 140 mm of Y travel at a rapid of 7.5 m/min and keeps the tailstock, and the B750YS, which pairs the Y-axis with a second spindle.
04
Biglia lists the servo turret with 16 or 12 stations, printed as 16/12, and the same number of live tool positions. Turning tools use 25x25 mm shanks and boring bars 32-40 / 40-50 mm. Indexing takes 0.3 sec for one position. A comprehensive tooling package is named among the standard features.