Biglia B750YS
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 B750YS cost?
Price estimate
We do not have a price for the Biglia B750YS 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
At the top of the 750 line, the Biglia B750YS carries everything Biglia offers on this bed at once: Y-axis, driven tools, C-axis on both spindles and a sub-spindle. It is the version for parts that would otherwise visit a lathe twice and a machining centre once.
Start with the numbers that define the work zone. X travel is 305 mm, Y travel 140 mm and Z travel 860 mm. The sub-spindle moves 895 mm on the B-axis at 24 m/min to collect the part, and it is rated like a main spindle: ASA 6" nose, 4,500 rpm, 30-40 kW and 286 Nm with 210-250 mm chucks.
One turret does all of it. Its 16 or 12 stations take turning tools with 25x25 mm shanks or driven tools rated 12/15 kW and 35/37 Nm, and it serves the main spindle first and the sub-spindle second. Station count therefore deserves a hard look when planning a job: front-side turning, back-side turning and the milling tools for both ends all share the same disc.
As on the B750SM, there is no tailstock in the table, since the second spindle occupies the B-axis. The main spindle is a choice of three, from the ASA 6" unit for 70 mm bar to an ASA 8" unit for 93/100 mm bar with 30-38 kW. Biglia lists the B750YS at 7,600 kg with swarf conveyor, the heaviest B750, on the same 528 x 203 cm footprint as the others.
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) |
| Sub Spindle Speed | 4,500 rpm |
| Sub Spindle Nose | ASA 6" |
| Sub Spindle Bore | 77.5 mm (3.1 in) |
| Sub Spindle Drawtube Inside Diameter | 70 mm (2.8 in) |
| Sub Spindle Bearing Inside Diameter | 110 mm (4.3 in) |
| Sub Spindle Chuck Size | 210-250 mm (8.3-9.8 in) |
| Sub Spindle Power | 30-40 kW (40.2-53.6 hp) |
| Sub Spindle Torque | 286 Nm (211 lb-ft) |
| Sub Spindle B Axis Positioning Travel | 895 mm (35.2 in) |
| Sub Spindle B Axis Rapid Traverse | 24 m/min (945 ipm) |
| 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) |
| Y Axis Travel | 140 mm (5.5 in) |
| Z Axis Travel | 860 mm (33.9 in) |
| Rapid Traverse X | 18 m/min (709 ipm) |
| Rapid Traverse Y | 7.5 m/min (295 ipm) |
| Rapid Traverse Z | 24 m/min (945 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 | 7,600 kg (16,755 lb) with swarf conveyor |
| CNC Control | FANUC i-HMI |
Specifications sourced from bigliaspa.it — verified 2026-10-05
Strengths & Limitations
Strengths
- Y-axis (140 mm), sub-spindle and driven tools combined on one machine
- Sub-spindle with 30-40 kW, 286 Nm and 4,500 rpm for real cutting on the second side
- C-axis on both spindles, each with a 0.001° minimum programmable value
- Automatic transfer from main to sub-spindle, described by Biglia as allowing the complete process on both sides
- Same floor space as the two-axis B750: 528 x 203 cm
Limitations
- A single turret with 16 or 12 stations has to hold the tools for both spindles
- No tailstock rows in the table for this version
- Y rapid is limited to 7.5 m/min
- Heaviest version of the B750 at 7,600 kg, and the one with the most to program
Best For
Frequently Asked Questions
01
Biglia's configuration list gives the B750YS rotary tools at 12/16 positions, a C-axis on the main spindle, a Y-axis and a C-axis on the second spindle. In short, Y stands for the Y-axis and S for the sub-spindle. It is the most fully equipped of the five B750 versions.
02
The table lists no tailstock for the B750YS. The B-axis carries the sub-spindle, which positions over 895 mm. For shaft work that needs a centre, the B750Y has the Y-axis together with the servo tailstock and its 910 mm of positioning.
03
The turret is listed with 16/12 stations, all of which can be live. Turning tools use 25x25 mm shanks and boring bars 32-40 / 40-50 mm. One position indexes in 0.3 sec. Because the same turret works at both spindles, double holders are worth planning for when the tool list is long.
04
Live tooling is listed at 12/15 kW motor power and 35/37 Nm maximum torque. The speed row reads 6,000 / (10,000) rpm, and Biglia notes that standard rotary tools limit the maximum to 6000 rpm. The motor sits in the tool plate and drives the rotary tool directly.
05
The cooling system rows give a 300 L tank, a pump with a nominal displacement of 60 L/min and a 1.1 kW electropump motor. Medium-pressure coolant supply with a filter is a standard feature, and high pressure coolant is on the options list.