Machine Comparison
Mitsui Seiki H6D vs Toshiba BTD-200QH
Mitsui Seiki vs Shibaura Machine · CNC Boring Machines
Summary
The Mitsui Seiki H6D and the Toshiba BTD-200QH are both horizontal boring machines with BT50 spindles, but they are different size classes and serve different jobs. The H6D is a precision machine with 600 mm (23.6 in) of X travel; the BTD-200QH is a large table-type borer with 1,500 mm (59.1 in) of X travel and a W-axis quill for deep bores.
The Toshiba covers 1,500 x 1,200 x 700 mm of travel against 600 x 700 x 500 mm, has a 1,000 x 1,200 mm table against 630 x 500 mm and delivers 30 kW (40 hp) against 15 kW (20 HP) continuous. It weighs 18,000 kg (39,600 lb) against 9,000 kg (19,842 lb). The H6D spins faster, 6,000 rpm against 3,000 RPM standard or 5,000 RPM with the high-speed option, and runs a Fanuc 31i-B against the TOSNUC 999 CNC.
Specifications Comparison
| Specification | Mitsui Seiki H6D | Toshiba BTD-200QH |
|---|---|---|
| X-Axis Travel | 600 mm (23.6 in) | 1,500 mm (59.1 in) ▲ |
| Y-Axis Travel | 700 mm (27.6 in) | 1,200 mm (47.2 in) ▲ |
| Z-Axis Travel | 500 mm (19.7 in) | 700 mm (27.6 in) ▲ |
| Table Size | 630 x 500 mm (24.8 x 19.7 in) | 1,000 x 1,200 mm (39.4 x 47.2 in) |
| Max Spindle Speed | 6,000 rpm ▲ | 3,000 RPM (standard) / 5,000 RPM (high-speed option) |
| Spindle Power | 15 kW (20 HP) continuous | 30 kW (40 hp) ▲ |
| Spindle Taper / Nose | BT50 | #50 (BT50) |
| Control | Fanuc 31i-B | TOSNUC 999 CNC |
| Machine Weight | 9,000 kg (19,842 lb) | 18,000 kg (39,600 lb) |
Advantages
Mitsui Seiki H6D
- 6,000 rpm spindle against 3,000 RPM standard (5,000 RPM optional)
- Fanuc 31i-B control
- Built for precision multi-face boring of manifolds, valve bodies and pump housings
Toshiba BTD-200QH
- 1,500 x 1,200 x 700 mm of travel against 600 x 700 x 500 mm
- 30 kW (40 hp) spindle against 15 kW (20 HP) continuous
- 1,000 x 1,200 mm table against 630 x 500 mm
- W-axis quill for features beyond Z-axis reach
Verdict
These machines serve different jobs. The Toshiba BTD-200QH is for large mold bases, gearbox and turbine housings and heavy weldments that need 1,500 mm of X travel, a 1,000 x 1,200 mm table and 30 kW at the spindle. The Mitsui Seiki H6D is for smaller precision parts, such as hydraulic manifolds and valve housings, where tight bore relationships across several faces matter more than size.