Mitsui Seiki HU100A
This model was not found in Mitsui Seiki's current lineup when we checked on 2026-10-03 . It may be a superseded or older model; the specifications below are as we last recorded them.
Key Specifications
X Travel
Y Travel
Z Travel
Spindle Taper
Tool Capacity
Rapid Traverse
How much does the Mitsui Seiki HU100A cost?
Estimated price range
Our best estimate for a horizontal machining centers (hmc) in this class — not a quote from Mitsui Seiki. Configuration moves it a long way.
Overview
The Mitsui Seiki HU100A is listed as a large horizontal machining center with a 1,000 mm x 1,000 mm (39.4 x 39.4 in) pallet, travels of 1,400 x 1,200 x 1,200 mm (55.1 x 47.2 x 47.2 in) and a machine weight of 65,000 kg (143,300 lb). Mitsui Seiki's current lineup does not show it, so it may be an older model, and the listed figures should be confirmed on the machine.
The weight is the figure to dwell on. The largest workpiece is 4,000 kg (8,818 lb), 1,400 mm (55.1 in) in diameter and 1,600 mm (63.0 in) high, yet the machine is listed at 65,000 kg (143,300 lb) on a stress-relieved Meehanite cast iron base. That ratio of machine mass to part mass marks a machine built to hold geometry under heavy cuts, and it makes the foundation the first item in any installation plan.
The spindle matches. A No. 50 taper (CAT50, BT50 or HSK-A100) carries 37 kW (50 hp) continuous, 45 kW (60 hp) on the 30-min rating, and 2,500 Nm (1,844 ft-lb) of peak torque. Standard speed is 6,000 RPM, with 8,000 RPM as an option. Tooling can be large: up to 250 mm in diameter with clearance, 125 mm with adjacent pockets occupied, 600 mm long and 25 kg. The magazine holds 60 tools as standard or 120 as an option.
Positioning accuracy is listed at ±0.002 mm (±0.00008 in) over full stroke, with ±0.001 mm (±0.00004 in) repeatability and 0.001° rotary table resolution. Rapids are 36 m/min (1,417 ipm) on all axes. The 2-station APC is standard, with a 35 sec pallet change and a 5.0 sec chip-to-chip tool change, both in keeping with the mass being moved.
Full Specifications
| Parameter | Value |
|---|---|
| Pallet Size | 1,000 mm x 1,000 mm (39.4 x 39.4 in) |
| X-Axis Travel | 1,400 mm (55.1 in) |
| Y-Axis Travel | 1,200 mm (47.2 in) |
| Z-Axis Travel | 1,200 mm (47.2 in) |
| Max Workpiece Diameter | 1,400 mm (55.1 in) |
| Max Workpiece Height | 1,600 mm (63.0 in) |
| Max Workpiece Weight | 4,000 kg (8,818 lb) |
| Spindle Taper | No. 50 (CAT50 / BT50 / HSK-A100) |
| Spindle Speed | 6,000 RPM (standard) / 8,000 RPM (option) |
| Spindle Motor Power | 37 kW (50 hp) continuous / 45 kW (60 hp) 30-min |
| Spindle Torque | 2,500 Nm (1,844 ft-lb) peak |
| Rapid Traverse Rate | 36 m/min (1,417 ipm) all axes |
| Feed Rate | 1–10,000 mm/min |
| Positioning Accuracy | ±0.002 mm (±0.00008 in) full stroke |
| Repeatability | ±0.001 mm (±0.00004 in) |
| Rotary Table Resolution | 0.001° |
| Tool Capacity | 60 (standard) / 120 (optional) |
| Tool Change Time | 5.0 sec (chip-to-chip) |
| Max Tool Diameter (full magazine) | 250 mm (clearance); 125 mm (adjacent pockets occupied) |
| Max Tool Length | 600 mm |
| Max Tool Weight | 25 kg |
| Pallet Changer | 2-station APC (standard) |
| Pallet Change Time | 35 sec |
| Base Material | Meehanite cast iron, stress-relieved |
| CNC Control | FANUC 31i-B5 |
| Machine Weight | 65,000 kg (143,300 lb) |
Specifications compiled from manufacturer literature and industry references. Not independently verified against a published spec sheet — confirm with the manufacturer or an authorised dealer before making a purchasing decision.
Strengths & Limitations
Strengths
- 2,500 Nm (1,844 ft-lb) of peak spindle torque with 37 kW (50 hp) continuous
- Workpieces up to 4,000 kg (8,818 lb), 1,400 mm (55.1 in) in diameter and 1,600 mm (63.0 in) high
- 65,000 kg (143,300 lb) machine on a stress-relieved Meehanite cast iron base
- Tools up to 600 mm long and 25 kg, and 250 mm in diameter with clearance
- ±0.002 mm (±0.00008 in) positioning accuracy listed over full stroke
- A 2-station APC is listed as standard equipment
Limitations
- Pallet change takes 35 sec and tool change 5.0 sec chip-to-chip, slow for short-cycle parts
- Standard spindle speed is 6,000 RPM; 8,000 RPM is an option
- Cutting feed tops out at 10,000 mm/min
- A 65,000 kg (143,300 lb) machine needs an engineered foundation and a heavy rigging plan
- Tool diameter drops to 125 mm when adjacent pockets are occupied
Best For
Frequently Asked Questions
01
Travels are listed at 1,400 mm (55.1 in) in X and 1,200 mm (47.2 in) in both Y and Z. The pallet is 1,000 mm x 1,000 mm (39.4 x 39.4 in), and the largest workpiece is 1,400 mm (55.1 in) in diameter, 1,600 mm (63.0 in) high and 4,000 kg (8,818 lb).
02
37 kW (50 hp) continuous and 45 kW (60 hp) on the 30-min rating, with 2,500 Nm (1,844 ft-lb) of peak torque. The spindle is a No. 50 taper at 6,000 RPM as standard; 8,000 RPM is listed as an option.
03
Maximum tool diameter is 250 mm with clearance or 125 mm with adjacent pockets occupied. Maximum tool length is 600 mm and maximum tool weight is 25 kg. The magazine holds 60 tools as standard, with 120 optional.
04
The listed machine weight is 65,000 kg (143,300 lb). For scale, the HS6A is listed at 22,000 kg (48,500 lb). A foundation design and a rigging plan should be settled before a machine of this mass is purchased.
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