Biglia B1250YS
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 B1250YS cost?
Price estimate
We do not have a price for the Biglia B1250YS 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
The Biglia B1250YS is the largest and most complete machine in Biglia's universal range. It has the long bed with 1,310 mm (51.6 in) of Z travel, 140 mm of Y travel, a sub-spindle, driven tools and a C-axis on both spindles, and at 8,400 kg (18,519 lb) with swarf conveyor it is also the heaviest.
Its sub-spindle positions over 1,130 mm on the B-axis at 24 m/min. That long stroke, together with the Y-axis, is what separates it from the B750YS, whose second spindle positions over 895 mm on a bed with 860 mm of Z travel. The extra length is useful in two ways. Long parts fit between the spindles, and short parts leave generous clearance for tools reaching in from the turret.
Power is split unevenly between the two ends. The main spindle is one of two ASA 8" units, the larger rated 30-38 kW and 800-1,014 Nm at 3,000 rpm with a 400 mm chuck. The sub-spindle is an ASA 6" unit with 30 - 40 kW, 286 Nm and 4,500 rpm. A sensible process puts the heavy stock removal on the main side and the lighter, faster cuts on the second.
No tailstock is listed for this version, and the quill and B-axis tailstock rows are blank in its column. The turret holds 16 or 12 tools on 25x25 mm shanks, any of them live at 12/15 kW. The machine is 562 cm long, 219 cm deep and 249 cm high.
Full Specifications
| Parameter | Value |
|---|---|
| Bar Capacity | ASA 8" Ø80 (spindle option): 80 mm (3.1 in); ASA 8" Ø93/100: 93/100 mm (3.7/3.9 in) |
| Max Turning Diameter | ASA 8" Ø80 (spindle option): 553/450 mm (21.8/17.7 in); ASA 8" Ø93/100: 552 mm (21.7 in) |
| Max Turning Length | 1,195 mm (47.0 in) with Ø 315 mm chuck |
| Swing Over Diameter | 680/500 mm (26.8/19.7 in) |
| Max Spindle Speed | ASA 8" Ø80 (spindle option): 3,200 rpm; ASA 8" Ø93/100: 3,000 rpm |
| Spindle Nose | ASA 8" for both main spindle options |
| Spindle Bore | ASA 8" Ø80 (spindle option): 91 mm (3.6 in); ASA 8" Ø93/100: 106/111 mm (4.2/4.4 in) |
| Spindle Bearing Inside Diameter | ASA 8" Ø80 (spindle option): 130 mm (5.1 in); ASA 8" Ø93/100: 150 mm (5.9 in) |
| Chuck Size | ASA 8" Ø80 (spindle option): 315 mm (12.4 in); ASA 8" Ø93/100: 400 mm (15.7 in) |
| Spindle Motor Power | ASA 8" Ø80 (spindle option): 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 8" Ø80 (spindle option): 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 | 1,130 mm (44.5 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 | 1,310 mm (51.6 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 | 562 x 219 x 249 cm (221.3 x 86.2 x 98.0 in), with swarf conveyor (last figure is the height) |
| Spindle Centre Height | 1,065 mm (41.9 in) |
| Machine Weight | 8,400 kg (18,519 lb) with swarf conveyor |
| CNC Control | FANUC i-HMI |
Specifications sourced from bigliaspa.it — verified 2026-10-05
Strengths & Limitations
Strengths
- Y-axis, sub-spindle and live tooling on a bed with 1,310 mm of Z travel
- Sub-spindle positioning of 1,130 mm, against 895 mm on the B750YS
- Main spindle torque of 800-1,014 Nm with a 4,500 rpm sub-spindle for the second side
- C-axis with a 0.001° minimum programmable value on each spindle
- Automatic part transfer between the spindles for complete machining on both sides
Limitations
- No tailstock rows for this version, so unsupported shaft length is limited by the part's stiffness
- Heaviest machine of the series at 8,400 kg and 562 cm long
- One turret with 16 or 12 stations for all operations on both spindles
- Y rapid of 7.5 m/min and main spindle speeds of 3,000 or 3,200 rpm
Best For
Frequently Asked Questions
01
The Y-axis. The B1250YS has a 140 mm Y-axis stroke with a 7.5 m/min rapid; the B1250SM has none. Both carry the same sub-spindle with 1,130 mm of B-axis positioning. Biglia lists the B1250YS at 8,400 kg and the B1250SM at 8,250 kg.
02
03
Two ASA 8" spindles. One is for 93/100 mm bar with a 106/111 mm bore, a 400 mm chuck, 3,000 rpm, 30-38 kW and 800-1,014 Nm. The other, marked as a spindle option, is for 80 mm bar with a 91 mm bore, a 315 mm chuck, 3,200 rpm, 15-22 kW and 398-700 Nm.
04
Turret indexing is listed at 0.3 sec for one position. The turret has 16/12 stations for tools with 25x25 mm shanks and 32-40 / 40-50 mm boring bars, and the same number of live positions. Rapids are 18 m/min on X and 24 m/min on Z.
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