ROMI GL 300
Image: romi.com, Romi
Key Specifications
Max Spindle
Spindle Power
max turning diameter
swing over z axis cover
swing over x table
swing over y table
How much does the ROMI GL 300 cost?
Price estimate
We do not have a price for the ROMI GL 300 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
Romi builds the GL 300 on the same 600 mm (23.6 in) Z travel and the same swing figures as the GL 250, then fits a larger spindle and turret. The ROMI GL 300 turns 330 mm (13 in) in the T version and 300 mm (11.8 in) in the M, Y and S versions, with a built-in motor rated 25.2 hp / 18.5 kW.
The headstock choice is A2-6” or A2-8”. The first runs to 4,500 rpm with a 73 mm (2.9 in) bore and 51 or 64 mm (2 or 2.5 in) of bar capacity. The second gives up speed, 3,500 rpm, for an 85 mm (3.35 in) bore that passes 64 or 76 mm (2.5 or 3 in) bar and carries a 254 mm (10 in) chuck. For a shop whose bar stock runs past 64 mm, that A2-8” spindle is the reason to pick this size over the GL 250.
Tooling steps up too. The turret still has 12 stations but takes 25 x 25 mm (1” x 1”) square shanks and Ø 40 mm (1 1/2”) boring bars. The M version uses a VDI 40 disc with ER-32 collets, the Y version a BMT-55 disc. Driven tools turn at 0 ~ 4,000 rpm from a motor Romi rates at a minimum of 30 Nm (22.1 lb-ft), so the live tooling is geared to larger cutters than on the GL 250.
An S version exists, as on the GL 250, with the same A2-5” second headstock: 6,000 rpm, 51 mm (2 in) of bar capacity, 19.4 hp / 14.3 kW. Note that the second spindle is smaller than either main spindle, so the second operation is limited by its chuck. The tailstock of the other versions pushes with up to 500 kgf. The machine weighs 5,200 kg (11,464 lb) without chip conveyor.
Full Specifications
| Parameter | Value |
|---|---|
| Max Turning Diameter | 330 mm (13 in) T version; 300 mm (11.8 in) M, Y and S versions |
| Swing Over Z Axis Cover | 530 mm (20.8 in) |
| Swing Over X Table | 420 mm (16.5 in) |
| Swing Over Y Table | 400 mm (15.7 in) |
| X Axis Travel | 185 mm (7.3 in) T, Y and S versions; 230 mm (9 in) M version |
| Z Axis Travel | 600 mm (23.6 in) |
| Y Axis Travel | ± 50 mm (1.97 in) |
| Tailstock or Second Headstock Travel | 540 mm (21.2 in) |
| Headstock Type | Built-in motor |
| Spindle Nose | ASA A2-6” or A2-8” |
| Spindle Bore | 73 mm (2.9 in) / 85 mm (3.35 in) |
| Chuck Size | 210 or 254 mm (8.3 or 10 in) with A2-6”; 254 mm (10 in) with A2-8” |
| Bar Capacity | 51 or 64 mm (2 or 2.5 in) with A2-6”; 64 or 76 mm (2.5 or 3 in) with A2-8” |
| Max Spindle Speed | 4,500 rpm with A2-6”; 3,500 rpm with A2-8” |
| Sub Spindle | S versions: built-in motor, ASA A2-5” |
| Sub Spindle Bore | 61 mm |
| Sub Spindle Chuck Size | 165, 175 or 210 mm (6.5, 6.9 or 8.3 in) |
| Sub Spindle Bar Capacity | 51 mm (2 in) |
| Sub Spindle Speed | 6,000 rpm |
| Rapid Traverse X | 30 m/min (1,181 in/min) |
| Rapid Traverse Z | 30 m/min (1,181 in/min) |
| Rapid Traverse Y | 18 m/min (708 in/min) |
| Rapid Traverse W | 10 m/min (393 in/min) T, M and Y versions; 18 m/min (708 in/min) S versions |
| Turret Stations | 12 |
| Turret Tool Section | 25 x 25 mm (1” x 1”) |
| Turret Fixed Tool Holder | Romi disc (T versions) |
| Turret Boring Bar Diameter | Ø 40 mm (1 1/2”) |
| Turret Driven Tool Holder | M: VDI 40 / Y: BMT-55 |
| Driven Tool Collet | M: ER-32 (Ø2 - Ø20mm); Y: ER-25 (Ø1 - Ø16mm) |
| Driven Tool Speed | 0 ~ 4,000 rpm |
| Driven Tool Motor Torque | 30 Nm (22.1 lb-ft) |
| Tailstock Taper | MT-4 |
| Tailstock Axial Force | 500 kgf |
| Spindle Motor Power | 25.2 hp / 18.5 kW (intermittent regime) |
| Sub Spindle Power | 19.4 hp / 14.3 kW (intermittent regime, S versions) |
| Power Requirement | 40 kVA (T, M and Y versions); 50 kVA (S versions) |
| Machine Weight | 5,200 kg (11,464 lb) without chip conveyor |
| Machine Height | 2,009 mm (79 in) T and M versions; 2,235 mm (88 in) Y and S versions |
| Floor Space | 2,927 x 2,019 mm (115 x 79 in) T and M versions; 3,901 x 2,268 mm (153 x 89 in) Y and S versions (without chip conveyor) |
| CNC Control | Fanuc 0i-TF Plus i-HMI (T, M and Y versions); Fanuc 32i-B Plus i-HMI (S versions) |
Specifications sourced from romi.com — verified 2026-10-04
Strengths & Limitations
Strengths
- A2-8” headstock option with an 85 mm (3.35 in) bore and 64 or 76 mm (2.5 or 3 in) bar capacity
- 25.2 hp / 18.5 kW built-in motor spindle
- 12-station turret for 25 x 25 mm (1” x 1”) tools, with VDI 40 or BMT-55 driven-tool discs
- X travel of 230 mm (9 in) on the M version
- S version with second headstock for work on both ends of the part
Limitations
- Z travel is 600 mm (23.6 in), no longer than on the smaller GL 250
- The second headstock of S versions is an A2-5” unit with 51 mm (2 in) bar capacity, smaller than the main spindle
- Driven tools stop at 4,000 rpm
- S versions need 50 kVA of installed power, against 40 kVA for T, M and Y
Best For
Frequently Asked Questions
01
The envelope is close: both have 600 mm (23.6 in) of Z travel. The GL 300 has a 25.2 hp / 18.5 kW spindle where the GL 250 has 19.4 hp / 14.3 kW, a larger headstock choice (A2-6” or A2-8”), a turret for 25 x 25 mm (1” x 1”) tools and 5,200 kg (11,464 lb) of weight.
02
It is 330 mm (13 in) on the T version, which carries fixed tools only, and 300 mm (11.8 in) on the M, Y and S versions. Swing over the Z axis cover is 530 mm (20.8 in) and over the X table 420 mm (16.5 in).
03
The Y version does. Y travel is ± 50 mm (1.97 in) and the Y axis moves at 18 m/min (708 in/min) in rapid. The Y version uses a BMT-55 turret with ER-25 driven tool holders. On the S version the same Y turret works with the second headstock.
04
On T, M and Y versions it is a servodriven tailstock on linear guides with an MT-4 taper and a maximum axial force of 500 kgf, positioned and loaded from the CNC. Its travel is 540 mm (21.2 in) and it moves at 10 m/min (393 in/min).
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