Brother Speedio M300X3
Key Specifications
X Travel
Y Travel
Z Travel
Max Spindle
Spindle Taper
Tool Capacity
How much does the Brother Speedio M300X3 cost?
Estimated price range
Our best estimate for a mill-turn / multi-tasking machine in this class — not a quote from Brother Industries. Configuration moves it a long way.
Overview
The Speedio M300X3 is the larger of Brother's two X3-generation mill-turn machines and is no longer in production. X travel is 300 mm (11.8 in), with 440 mm (17.3 in) of Y and 305 mm (12.0 in) of Z, and the work sits on a Φ170 (Φ6.7) table that tilts on an A axis, indexes on C and turns at up to 1,500 rpm with 4.6 kW.
Its reason to exist is part size. Next to the Speedio M200X3, the M300X3 has 50% more X travel and carries 75 kg (165.3 lb) on the table side instead of 40 kg (88.2 lb), with a table-side inertia limit of 0.58 kg·m² (1982 lb·in²) against 0.29 kg·m² (991 lb·in²) on the Speedio M200X3. A bigger chuck and heavier blanks become possible. The price of that capacity is speed on the lathe side: the Speedio M200X3 turns at 2,000 rpm and the M300X3 at 1,500 rpm, so small diameters see lower surface speed here, while the 4.6 kW drive suits larger diameters.
The A axis is driven by a 1.35 kW motor and swings from 120° to -30°, indexing at 50 rpm; C indexes at 200 rpm. The tail side is rated 11 kg (24.3 lb). The milling spindle is BT30 at 10,000 rpm, or 16,000 rpm as an option, rated 10.1 kW for 10 minutes and 7.0 kW continuous, with tapping to 6,000 rpm.
Tool changes take 0.8 s tool to tool and 1.6 s chip to chip from a 22-tool magazine. Tools are limited to 200 mm (7.9 in) long, 80 mm (3.1 in) in diameter and 3 kg (6.6 lb).
This is a long machine at 1,520 × 3,862 mm (59.8 × 152.0 in), 2,653 mm (104.4 in) high and 2,880 kg (6,349 lb). The current-generation Speedio M300Xd1 keeps the width but is 2,667 mm (105 in) long and adds 380 mm (15.0 in) of Z.
Full Specifications
| Parameter | Value |
|---|---|
| CNC Control | Brother CNC-C00 |
| X-Axis Travel | 300 mm (11.8 in) |
| Y-Axis Travel | 440 mm (17.3 in) |
| Z-Axis Travel | 305 mm (12.0 in) |
| A Axis Range | 120 - -30° |
| C Axis Range | 360° |
| Table Size | Φ170 (Φ6.7) |
| Table Type | In compliance with table nose No.5 of ISO702 - 4 (JISB6109 - 2) |
| Max Table Load | Table side 75 kg (165.3 lb) / Tail side 11 kg (24.3 lb) |
| Max Table Load Inertia | Table side 0.58 kg·m² (1982 lb·in²) / Tail side 0.04 kg·m² (137 lb·in²) |
| Max Spindle Speed | 10,000 rpm (16,000 rpm optional) |
| Tapping Speed Max | 6,000 rpm |
| Spindle Taper | BT30 (7/24 taper No. 30) |
| Dual Contact Spindle | Optional |
| Coolant Through Spindle | Optional |
| Turning Spindle Speed | 1,500 rpm |
| Rapid Traverse Rate | 50 / 50 / 50 m/min (1,969 / 1,969 / 1,969 ipm) |
| Max Cutting Feedrate | 30,000 mm/min (1,181 ipm) |
| Rotary Indexing Speed | A axis: 50, C axis: 200 rpm |
| Tool Shank | MAS-BT30 |
| Pull Stud | MAS.P30T-2 |
| Tool Capacity | 22 tools |
| Max Tool Length | 200 mm (7.9 in) |
| Max Tool Diameter (full magazine) | 80 mm (3.1 in) |
| Max Tool Weight | 3 kg (6.6 lb) per tool |
| Tool Selection | Random shortcut method |
| Tool to Tool Time | 0.8 sec |
| Chip to Chip Time | 1.6 sec |
| Spindle Motor Power | 10.1 kW (10 min) / 7.0 kW continuous |
| Axis Feed Motor | X,Y axis 1.0, Z axis 1.8, A axis 1.35 kW |
| Turning Spindle Power | 4.6 kW |
| Power Supply | AC200V±10%、50/60Hz±1Hz |
| Power Capacity | 10,000min-1 specifications : 9.5 16,000min-1 specifications (Optional): 9.5 kVA |
| Air Pressure | 0.4 - 0.6 MPa |
| Air Flow | 165 L/min |
| Machine Height | 2,653 mm (104.4 in) |
| Floor Space Required | 1,520 × 3,862 mm (59.8 × 152.0 in) |
| Machine Weight | 2,880 kg (6,349 lb) |
| Positioning Accuracy | 0.006 - 0.020 mm (0.00024 - 0.00079 in) |
| Repeatability | < 0.004 mm (0.00016 in) |
Specifications sourced from machinetool.global.brother — verified 2026-10-03
Strengths & Limitations
Strengths
- Table side carries 75 kg (165.3 lb), enough for a larger chuck and heavier blanks
- 4.6 kW turning drive on a Φ170 (Φ6.7) table
- 300 mm (11.8 in) of X with A tilting from 120° to -30° and a 360° C axis
- Cutting feed up to 30,000 mm/min (1,181 ipm) with 50 m/min (1,969 ipm) rapids on all three axes
- Optional 16,000 rpm milling spindle for small tools
Limitations
- Turning speed tops out at 1,500 rpm, against 2,000 rpm on the Speedio M200X3
- Tail side is rated only 11 kg (24.3 lb)
- Tools limited to 200 mm (7.9 in) long and 80 mm (3.1 in) in diameter
- Needs a 3,862 mm (152.0 in) long floor space and 165 L/min of air
- Out of production; dual-contact spindle and through-spindle coolant were options
Best For
Frequently Asked Questions
01
The Speedio M200X3 has 200 mm (7.9 in) of X, a Φ140 (Φ5.5) table rated 40 kg (88.2 lb) and turns at 2,000 rpm with 3.6 kW. The M300X3 has 300 mm (11.8 in) of X, a Φ170 (Φ6.7) table rated 75 kg (165.3 lb) and turns at 1,500 rpm with 4.6 kW. Y and Z travel are the same.
02
The current-generation Speedio M300Xd1, which keeps 300 mm (11.8 in) of X and 440 mm (17.3 in) of Y, extends Z to 380 mm (15.0 in), takes 250 mm (9.8 in) tools, offers 28 tools as an option, rates the tail side at 19 kg (41.9 lb) and is 2,667 mm (105 in) long.
03
Up to 200 mm (7.9 in) long, 80 mm (3.1 in) in diameter and 3 kg (6.6 lb) each, in a 22-tool magazine on MAS-BT30 shanks. The 80 mm limit rules out larger face mills, so plan surfacing passes with smaller cutters.
04
An AC200V±10%, 50/60Hz±1Hz supply of 9.5 kVA for either the 10,000 rpm or the 16,000 rpm spindle, and 165 L/min of air at 0.4 - 0.6 MPa. The machine weighs 2,880 kg (6,349 lb).
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