Akira Seiki HV4.5A
Image: akiraseiki.com, Akira Seiki
Key Specifications
Max Spindle
Spindle Taper
Tool Capacity
Table Size
Spindle Power
Accuracy
How much does the Akira Seiki HV4.5A cost?
Price estimate
We do not have a price for the Akira Seiki HV4.5A 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 HV4.5A is the smallest of the maker's 50-taper vertical machining centers. It has 1,150 mm (45.3 in) of X travel, 640 mm (25 in) of Y and 660 mm (26 in) of Z, a 1,300 x 600 mm (51.1 x 23.6 in) table, and a BT50 / CAT50 spindle rated 42 HP (31.3 kW) peak and 35 HP (26.1 kW) for 30 minutes.
Spindle speed is 8,000 rpm, with 6,000 rpm listed as an option. Those are roughing speeds. Paired with an oil-chilled spindle and a tool changer that accepts 15 kg (33 lb) tools, 100 mm (3.9 in) in diameter with neighbours and 200 mm (7.9 in) without, the machine is set up for large face mills, long boring bars and big drills in steel and cast iron.
The envelope is the same as the V4.5XP, so the choice between them is a choice of spindle. Cutting feed here is 8 / 8 / 8 m/min (315 / 315 / 315 ipm), and a tool change takes 3.5 s. Neither figure is quick, and neither matters much when single cuts run for minutes.
The table takes 1,300 kg (2,866 lb) as standard and 1,560 kg (3,439 lb) at most. The machine weighs 8,033 kg (17,710 lb), measures 3,400 x 2,495 mm (134 x 98 in) and needs 35 kVA. Chips collect in a drawer; coolant capacity is 350 L (92.5 gal).
Full Specifications
| Parameter | Value |
|---|---|
| CNC Control | AKIRA Mi:845 (Fanuc G code compatible) |
| X Axis Travel | 1,150 mm (45.3 in) |
| Y Axis Travel | 640 mm (25 in) |
| Z Axis Travel | 660 mm (26 in) |
| Distance Spindle Nose to Table | 100~760 mm (4~30 in) |
| Spindle Center to Column Cover | 640 mm (25 in) |
| Table Size | 1,300 x 600 mm (51.1 x 23.6 in) |
| T-Slots | 18 mm x 100 mm pitch x 5 slots |
| Max Table Load | 1,560 kg (3,439 lb) |
| Standard Table Load | 1,300 kg (2,866 lb) |
| Spindle Motor Power | 42 HP (31.3 kW) |
| Spindle Power 30 Min | 35 HP (26.1 kW) (30 min) |
| Max Spindle Speed | 8,000 rpm / 6,000 rpm (OPT) |
| Spindle Taper | BT50 / CAT50 |
| Spindle Cooling | Oil chilling |
| Cutting Feed Rate | 8 / 8 / 8 m/min (315 / 315 / 315 ipm) |
| Positioning Accuracy | 0.01 mm (0.00039 in) |
| Repeatability | ±0.003 mm (±0.00012 in) |
| Tool Capacity | 28T |
| Max Tool Diameter (full magazine) | 100 mm (3.9 in) |
| Max Tool Diameter Without Adjacent Tools | 200 mm (7.9 in) |
| Max Tool Length | 350 mm (13.8 in) |
| Max Tool Weight | 15 kg (33 lb) |
| Tool Change Time | 3.5 s |
| Coolant Tank Capacity | 350 L (92.5 gal) |
| Chip Disposal | Drawer |
| Air Pressure Requirement | 0.5 MPa (72.5 psi) |
| Power Requirement | 35 kVA |
| Machine Dimensions | 3,400 x 2,495 mm (134 x 98 in) |
| Machine Weight | 8,033 kg (17,710 lb) |
Specifications sourced from akiraseiki.com — verified 2026-10-04
Strengths & Limitations
Strengths
- BT50 / CAT50 spindle with 42 HP (31.3 kW) peak in a 1,150 mm (45.3 in) machine
- Tools up to 15 kg (33 lb) and 350 mm (13.8 in) long
- 640 mm (25 in) of Y and 660 mm (26 in) of Z travel
- Oil-chilled spindle for long roughing cycles
- Table rated to 1,560 kg (3,439 lb) maximum
Limitations
- 8,000 rpm maximum limits small-tool and aluminium work
- Cutting feed of 8 / 8 / 8 m/min (315 / 315 / 315 ipm)
- 3.5 s tool change and a 28T magazine
- Chip disposal is a drawer; no conveyor is listed in the table
Best For
Frequently Asked Questions
01
A BT50 / CAT50 spindle with 42 HP (31.3 kW) peak power and 35 HP (26.1 kW) on the 30-minute rating. Maximum speed is 8,000 rpm, with 6,000 rpm as an option. The spindle is oil chilled.
02
Travels and table are the same. The V4.5XP has a BT40 spindle at up to 12,000 rpm and takes tools to 7 kg (15 lb). The HV4.5A has the 50-taper spindle, slower at 8,000 rpm, and takes 15 kg (33 lb) tools, so it is the roughing machine of the pair.
03
The 28T arm-type changer takes tools up to 100 mm (3.9 in) in diameter, or 200 mm (7.9 in) with the neighbouring pockets empty, 350 mm (13.8 in) long and 15 kg (33 lb). Tool change time is 3.5 s.
04
The machine weighs 8,033 kg (17,710 lb) and occupies 3,400 x 2,495 mm (134 x 98 in). The power requirement is 35 kVA and the air pressure requirement 0.5 MPa (72.5 psi).
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