Biglia B620 ASA 6"
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 B620 ASA 6" cost?
Price estimate
We do not have a price for the Biglia B620 ASA 6" 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
With the ASA 6" spindle the Biglia B620 takes 70 mm (2.8 in) bar and machines up to 360 mm (14.2 in) in diameter over a 620 mm (24.4 in) length. Of the three spindle sizes in Biglia's B620 table this one carries the most motor power, 30 - 40 kW (40.2 - 53.6 hp), and it turns at up to 4,500 rpm.
That combination is why the middle column is the general-purpose choice. The B620 ASA 5" is quicker at 5,000 rpm but stops at 51 mm bar, a 250 mm diameter and 17 - 25 kW. The B620 ASA 8" has more torque, 398 - 700 Nm against 286 Nm here, yet its motor is rated 15 - 22 kW and it tops out at 3,200 rpm. For a shop cutting a mix of steel bar and chucked castings, 286 Nm with 40 kW behind it covers both roughing and finishing speeds without choosing one over the other.
The spindle bore is 77.5 mm, the front bearings measure 110 mm inside, and Biglia lists 210 / 250 mm chucks. If the machine is ordered with the sub-spindle, note that the second spindle is smaller than the main one: ASA 5" nose, 5,000 rpm, 17 - 25 kW, 108 - 159 Nm and 140 / 165 mm chucks, with a 50 mm drawtube. Second-operation cuts have to be planned around that lower rating.
Around the spindle the machine is the same as its siblings: 180 mm of X, 620 mm of Z, a 15-station turret, 300 L of coolant and a spindle centre height of 1,080 mm. Weight with swarf conveyor is 6,650 kg (14,660 lb).
Full Specifications
| Parameter | Value |
|---|---|
| Bar Capacity | 70 mm (2.8 in) |
| Max Turning Diameter | 360 mm (14.2 in) |
| Max Turning Length | 620 mm (24.4 in) |
| Swing Over Diameter | 700 mm (27.6 in) |
| Max Spindle Speed | 4,500 rpm |
| Spindle Nose | ASA 6" |
| Spindle Bore | 77.5 mm (3.1 in) |
| Spindle Bearing Inside Diameter | 110 mm (4.3 in) |
| Chuck Size | 210 / 250 mm (8.3 / 9.8 in) |
| Spindle Motor Power | 30 - 40 kW (40.2 - 53.6 hp) |
| Spindle Torque | 286 Nm (211 lb-ft) |
| Sub Spindle Speed | 5,000 rpm |
| Sub Spindle Nose | ASA 5" |
| Sub Spindle Bore | 59.5 mm (2.3 in) |
| Sub Spindle Drawtube Inside Diameter | 50 mm (2.0 in) |
| Sub Spindle Bearing Inside Diameter | 90 mm (3.5 in) |
| Sub Spindle Chuck Size | 140 / 165 mm (5.5 / 6.5 in) |
| Sub Spindle Power | 17 - 25 kW (22.8 - 33.5 hp) |
| Sub Spindle Torque | 108 - 159 Nm (80 - 117 lb-ft) |
| Turret Stations | 15 |
| Tool Shank OD ID Turning | 20x20 - 25x25 - Ø32 mm (0.8x0.8 - 1.0x1.0 - Ø1.3 in) |
| Turret Indexing Time | 0.15 sec (1 position) |
| Live Tool Stations | 15 |
| Live Tool Speed | 6,000 - 10,000 rpm |
| Live Tool Power | 11 - 12.5 kW (14.8 - 16.8 hp) |
| Live Tool Torque | 30 - 34.5 Nm (22 - 25 lb-ft) |
| C Axis Min Programmable Value | 0.001° |
| C Axis Rapid Traverse | 100 rpm |
| X Axis Travel | 180 mm (7.1 in) |
| Z Axis Travel | 620 mm (24.4 in) |
| Y Axis Travel | +45 / -45 mm (+1.8 / -1.8 in) |
| B Axis Travel | 620 mm (24.4 in) |
| Rapid Traverse X | 18 m/min (709 ipm) |
| Rapid Traverse Z | 30 m/min (1,181 ipm) |
| Rapid Traverse Y | 18 m/min (709 ipm) |
| Rapid Traverse B | 30 m/min (1,181 ipm) |
| Tailstock Morse Taper | MT 5 and 4 |
| Tailstock B Axis Rapid Traverse | 18 m/min (709 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 | 455.1 x 206.5 x 204.2 cm (179.2 x 81.3 x 80.4 in), with swarf conveyor (last figure is the height) |
| Spindle Centre Height | 1,080 mm (42.5 in) |
| Machine Weight | 6,650 kg (14,660 lb) with swarf conveyor |
| CNC Control | FANUC i-HMI |
Specifications sourced from bigliaspa.it — verified 2026-10-05
Strengths & Limitations
Strengths
- Highest spindle power in the B620 table: 30 - 40 kW (40.2 - 53.6 hp) with 286 Nm (211 lb-ft)
- 70 mm bar capacity and a 360 mm machining diameter while still reaching 4,500 rpm
- 77.5 mm spindle bore and a choice of 210 / 250 mm chucks
- Biglia states the cast-iron bed was reinforced by 20% over the previous design, with roller guideways on Z and box-type guideways on X and Y
- Coolant tank of 300 L with a 60 L/min pump as listed equipment
Limitations
- The sub-spindle is a size smaller than the main spindle: 17 - 25 kW and 108 - 159 Nm, with 140 / 165 mm chucks
- X travel is 180 mm (7.1 in), so the 360 mm machining diameter leaves little room for long boring bars at full diameter
- Less low-speed torque than the B620 ASA 8", which lists 398 - 700 Nm
- The table gives one weight and one set of dimensions per spindle size, not per version, so check the figures for a sub-spindle or Y-axis machine
Best For
Frequently Asked Questions
01
It sits between them on capacity and above both on power. The B620 ASA 5" has 51 mm bar capacity, 5,000 rpm and 17 - 25 kW. The B620 ASA 8" has 80 mm bar capacity, 3,200 rpm, 15 - 22 kW and 398 - 700 Nm. The ASA 6" column lists 70 mm bar, 4,500 rpm, 30 - 40 kW and 286 Nm. All three share the 620 mm machining length and 700 mm swing.
02
No. Biglia's table gives a single sub-spindle for every B620: ASA 5" nose, 59.5 mm bore, 50 mm drawtube inside diameter, 5,000 rpm, 17 - 25 kW and 108 - 159 Nm, with 140 / 165 mm chucks. On this machine the main spindle is rated 30 - 40 kW and 286 Nm, so the heavier cuts belong on the first operation.
03
X is 180 mm and Z is 620 mm, with rapids of 18 m/min and 30 m/min. Versions with a Y-axis have +45 / -45 mm of Y at 18 m/min. The B-axis row gives 620 mm of stroke; the table prints 30 m/min for it under the axes heading and 18 m/min under the tailstock heading, so ask Biglia which applies to the tailstock and which to the sub-spindle.
04
The brochure's standard features include a rigid cast-iron bed, synchronous integral spindle motors, the 15 position servo turret with direct drive to the driven tools, rigid tapping, a CNC automatic tailstock, a parts catcher and bar-feeder interface, a chip conveyor with medium-pressure coolant and filter, an air-conditioned electrical cabinet and a CNC with 15" touch screen. Which of these apply depends on the version.
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