Akira Seiki SL40MC
Key Specifications
Max Spindle
Spindle Power
Max Turn Length
control
axes configuration
swing over bed
How much does the Akira Seiki SL40MC cost?
Price estimate
We do not have a price for the Akira Seiki SL40MC 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
Akira Seiki's SL40MC is a geared-head mill-turn lathe. The headstock is that of the SL40: A2-11 nose, 2,500 rpm, 60 HP (44.7 kW) peak and 2,944 Nm (2,171 lb-ft) of peak torque through a gear box, with a 103 mm (4.1 in) draw tube bore and a 15" chuck (18" optional). To that the MC version adds a C axis and a driven-tool turret.
The turret is a different design from the smaller MC models. It is listed as BMT65, a bolt-on interface that holds live tools more rigidly than a VDI shank, and the driven tools have 3.7 kW (5.5 HP) at up to 4,000 rpm. Index time is 0.57 s for 12 stations.
Unusually, the live turret takes nothing away from turning diameter on this model. Maximum cutting diameter is 550 mm (21.7 in), equal to the two-axis SL40. Cutting length is 830 mm (32.7 in), with 900 mm (35.4 in) of Z travel and a tailstock that travels 900 mm (35.4 in) on an MT5 quill. X travel is 285 + 25 mm (11.2 + 1 in).
Rapid feed is 30 m/min (1,181 ipm) in X and 36 m/min (1,417 ipm) in Z. Listed weight is 6,700 kg (14,771 lb) and the power requirement 35 kVA. The maker's dimension row for the SL40MC has metric and inch figures that disagree, so no footprint is given on this page.
Full Specifications
| Parameter | Value |
|---|---|
| CNC Control | AKIRA Mi:845 (Fanuc G code compatible) |
| Axes Configuration | X+Z+C |
| Swing Over Bed | 750 mm (29.5 in) |
| Swing Over Cross Slide | 550 mm (21.7 in) |
| Max Turning Diameter | 550 mm (21.7 in) |
| Max Turning Length | 830 mm (32.7 in) |
| Chuck Size | 15" STD; 18" OPT |
| Draw Tube Bore | 103 mm (4.1 in) |
| Max Spindle Speed | 2,500 rpm |
| Spindle Motor Power | 60 HP (44.7 kW) |
| Spindle Torque | 2,944 Nm (2,171 lb-ft) (gear box) |
| Spindle Nose | A2-11 |
| X Axis Travel | 285 + 25 mm (11.2 + 1 in) |
| Z Axis Travel | 900 mm (35.4 in) |
| Rapid Traverse Xz | X 30 m/min (1,181 ipm), Z 36 m/min (1,417 ipm) |
| Cutting Feed Rate | 10 m/min (394 ipm) |
| Turret Stations | 12 |
| OD Tool Size | BMT65 |
| Live Tool Power | 3.7 kW (5.5 HP) |
| Live Tool Speed | 4,000 rpm |
| Turret Index Time | 0.57 s |
| Quill Travel | 100 mm (3.9 in) |
| Tailstock Travel | 900 mm (35.4 in) |
| Quill Taper | MT5 |
| Chip Disposal | Drawer (STD); Conveyor (OPT) |
| Power Requirement | 35 kVA |
| Machine Weight | 6,700 kg (14,771 lb) |
Specifications sourced from akiraseiki.com — verified 2026-10-04
Strengths & Limitations
Strengths
- 2,944 Nm (2,171 lb-ft) geared spindle with C axis and driven tools
- BMT65 turret with 3.7 kW (5.5 HP) power tooling at 4,000 rpm
- Full 550 mm (21.7 in) cutting diameter, the same as the SL40
- 103 mm (4.1 in) bore, 15" chuck with 18" option
- MT5 tailstock with 900 mm (35.4 in) of travel
Limitations
- 2,500 rpm maximum spindle speed
- No Y axis; the application row is X+Z+C
- Footprint could not be taken from the maker's page
- X rapid of 30 m/min (1,181 ipm)
Best For
Frequently Asked Questions
01
A 12-station turret listed as BMT65, with driven tools rated 3.7 kW (5.5 HP) at up to 4,000 rpm. Tool change time with a neighbouring tool is 0.57 s.
02
2,944 Nm (2,171 lb-ft) at peak, which the table marks as a gear box figure, with 60 HP (44.7 kW) of peak power and a maximum speed of 2,500 rpm.
03
Up to 550 mm (21.7 in) in cutting diameter and 830 mm (32.7 in) in cutting length, under a 750 mm (29.5 in) swing. The chuck is 15" standard or 18" optional.
04
Yes, the SL40LMC, with a cutting length of 1,380 mm (54.3 in), a Z travel of 1,450 mm (57.1 in) and a tailstock travel of 1,450 mm (57.1 in). Spindle and turret match the SL40MC.
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