Akira Seiki 5AX-AC650
Image: akiraseiki.com, Akira Seiki
Key Specifications
Max Spindle
Spindle Taper
Tool Capacity
Table Size
Spindle Power
x axis travel
How much does the Akira Seiki 5AX-AC650 cost?
Price estimate
We do not have a price for the Akira Seiki 5AX-AC650 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 Akira Seiki 5AX-AC650 is a five-axis simultaneous machining center of the trunnion type: the workpiece tilts on an A axis and rotates on a C axis under a vertical spindle. The table is ∅500 mm (∅19.7 in), and the maker gives the largest workpiece as ∅650 x 350 mm (∅25.6 x 13.8 in) at up to 200 kg (441 lb).
Linear travels are 690 mm (27.2 in) in X, 590 mm (23.2 in) in Y and 560 mm (22.05 in) in Z. The A axis swings +30°~ -120°, far enough past horizontal to reach undercuts, and both rotary axes index in 0.001° steps. Tilting speed is 25 rpm and rotary speed 33.3 rpm.
The spindle is belt driven and oil chilled, with 30 HP (22.4 kW) peak. Standard speed is 12,000 rpm; 15,000 rpm is an option. Taper is listed as BT40 / CAT40 / DIN40. A 28T magazine is standard and 36T optional, with a 2.2 s tool change.
Akira Seiki names mould, aerospace, medical, semiconductor and optical parts as the target work. A belt-drive 12,000 rpm spindle points more toward general multi-face machining than toward high-speed finishing, so the 15,000 rpm option deserves a look for mould work. The machine weighs 9,080 kg (20,018 lb), measures 4,300 x 2,500 mm (169.29 x 98.43 in) and needs 30 kVA.
Full Specifications
| Parameter | Value |
|---|---|
| X Axis Travel | 690 mm (27.2 in) |
| Y Axis Travel | 590 mm (23.2 in) |
| Z Axis Travel | 560 mm (22.05 in) |
| Distance Spindle Nose to Table | 75-635 mm (2.95-25 in) |
| Spindle Center to Column Cover | 665 mm (26.18 in) |
| Table Size | ∅500 mm (∅19.7 in) |
| Max Workpiece Size | ∅650 x 350 mm (∅25.6 x 13.8 in) |
| A Axis Range | +30°~ -120° |
| Max Table Load | 200 kg (441 lb) |
| T-Slots | 14 mm x 70 mm pitch x 8 slots |
| Tilting Rotary Indexing | 0.001° / 0.001° |
| Spindle Motor Power | 30 HP (22.4 kW) |
| Max Spindle Speed | 12,000 rpm / 15,000 rpm (OPT) |
| Spindle Drive | Belt Type |
| Spindle Taper | BT40 / CAT40 / DIN40 |
| Spindle Cooling | Oil Chilling |
| Tilting Rotary Repeatability | 4 sec / 4 sec |
| Tool Capacity | 28T / 36T (OPT) |
| Max Tool Diameter (full magazine) | 65 mm (2.56 in) |
| Max Tool Diameter Without Adjacent Tools | 130 mm (5.12 in) |
| Max Tool Length | 250 mm (9.84 in) |
| Max Tool Weight | 7 kg (15 lb) |
| Rapid Traverse Xyz | 36 / 36 / 30 m/min (1,417 / 1,417 / 1,181 ipm) |
| Cutting Feed Rate | 12 / 12 / 12 m/min (472 / 472 / 472 ipm) |
| Tilting Axis Speed | 25 rpm |
| Rotary Axis Speed | 33.3 rpm |
| Tool Change Time | 2.2 s |
| Coolant Tank Capacity | 450 L (118.9 gal) |
| Chip Disposal | Chip Screw |
| Air Pressure Requirement | 0.5 MPa (72.5 psi) |
| Power Requirement | 30 kVA |
| Machine Dimensions | 4,300 x 2,500 mm (169.29 x 98.43 in) |
| Machine Weight | 9,080 kg (20,018 lb) |
Specifications sourced from akiraseiki.com — verified 2026-10-04
Strengths & Limitations
Strengths
- A / C trunnion with an A axis swing of +30°~ -120°
- Workpieces up to ∅650 x 350 mm (∅25.6 x 13.8 in)
- 30 HP (22.4 kW) peak spindle, oil chilled
- Choice of BT40 / CAT40 / DIN40 taper
- Rotary and tilting axes index to 0.001°
Limitations
- Table load is limited to 200 kg (441 lb)
- Belt-type spindle at 12,000 rpm as standard; 15,000 rpm is an option
- The 36T magazine is optional, 28T is standard
- The maker's indexing-accuracy row is incomplete and is not shown here
Best For
Frequently Asked Questions
01
The maker lists a maximum workpiece dimension of ∅650 x 350 mm (∅25.6 x 13.8 in) and a maximum loading of 200 kg (441 lb) on a ∅500 mm (∅19.7 in) table with eight 14 mm T-slots.
02
The A axis swings +30°~ -120°. Tilting and rotary indexing are both 0.001°, tilting speed is 25 rpm and rotary speed is 33.3 rpm. The C axis range is not stated in the table.
03
A belt-type spindle with 30 HP (22.4 kW) peak and oil chilling. Speed is 12,000 rpm as standard with 15,000 rpm optional, and the taper can be BT40, CAT40 or DIN40.
04
The axis layout. The 5AX-BC650 tilts on a B axis over -50° ~ +110° with a ∅650 mm (∅25.6 in) table that takes 300 kg (661 lb), and its spindle is in-line direct drive with a BBT40 taper. The 5AX-AC650 has longer X, Y and Z travels.
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