Seibu M25LP
Image: seibudenki.com, Seibu
Key Specifications
max workpiece dimensions
max workpiece weight
axis travel range
uv axis travel
max taper angle
machine dimensions
How much does the Seibu M25LP cost?
Price estimate
We do not have a price for the Seibu M25LP 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 Seibu M25LP is an oil-specification ultra-precision wire EDM with 250 × 250 × 200 mm (9.8 × 9.8 × 7.9 in) of axis travel. Seibu says the M25LP is ideal for the manufacturing of lead frames, carbide machining, and small electronic and medical components.
The table fits that description. Workpieces are limited to 270 × 270 × 100 mm (10.6 × 10.6 × 3.9 in) and 150 kg (331 lb), barely larger in plan than the stroke itself. This is a machine for parts and inserts that are cut all over, not for large plates with a few features. Wire runs from Φ0.05 to Φ0.20 mm, and the standard Φ0.2 mm wire is also the thickest it takes.
Taper capability is ±10° at 100 mm (3.9 in), which is the whole permitted workpiece height. The U-V axes travel ±35 × ±35 mm (±1.4 × ±1.4 in). No steeper taper option is listed for this model.
Within the oil lineup it sits above the MEX15, whose travel is 150 × 150 × 120 mm (5.9 × 5.9 × 4.7 in) with a 12 kg (26 lb) workpiece limit and Φ0.1 mm standard wire. The M25LP is the choice when a part needs oil but is too big or too heavy for that machine.
It weighs 3,100 kg (6,834 lb) and measures 1,770 × 2,040 × 2,018 mm (69.7 × 80.3 × 79.4 in). The control is Smart NC, with the MPSC-20 power supply and the MF330 filtration device.
Full Specifications
| Parameter | Value |
|---|---|
| Max Workpiece Dimensions | 270 × 270 × 100 mm (10.6 × 10.6 × 3.9 in) |
| Max Workpiece Weight | 150 kg (331 lb) |
| Axis Travel Range | 250 × 250 × 200 mm (9.8 × 9.8 × 7.9 in) |
| Uv Axis Travel | ±35 × ±35 mm (±1.4 × ±1.4 in) |
| Max Taper Angle | ±10° / 100 mm (3.9 in) |
| Machine Dimensions | 1,770 × 2,040 × 2,018 mm (69.7 × 80.3 × 79.4 in) |
| Machine Weight | 3,100 kg (6,834 lb) |
| Wire Diameter | Φ0.2 mm is standard; Φ0.05 to Φ0.20 mm |
| CNC Control | Smart NC |
| Power Supply | MPSC-20 |
| Filtration Device | MF330 |
Specifications sourced from seibudenki.com — verified 2026-10-05
Strengths & Limitations
Strengths
- Oil-specification machine that Seibu describes as ideal for lead frames, carbide machining, small electronic and medical components
- 250 × 250 × 200 mm (9.8 × 9.8 × 7.9 in) travel covers almost the whole 270 × 270 mm permitted workpiece
- Wire range of Φ0.05 to Φ0.20 mm
- ±10° taper across the full 100 mm (3.9 in) workpiece height
- 150 kg (331 lb) workpiece limit, well above the 12 kg (26 lb) of the MEX15
Limitations
- Workpiece height is limited to 100 mm (3.9 in)
- Wire thicker than Φ0.20 mm is not listed
- U-V travel is ±35 × ±35 mm (±1.4 × ±1.4 in) and no steeper taper option appears in the table
- At 3,100 kg (6,834 lb) it is heavier than the 2,700 kg (5,952 lb) MM35UP, a machine with longer travel
Best For
Frequently Asked Questions
01
Seibu states that it developed the oil type ultra precision wire EDM M25LP to bring EDM manufacturing to a wider range of products, and that the M25LP is ideal for the manufacturing of lead frames, carbide machining, small electronic and medical components.
02
Axis travel is 250 × 250 × 200 mm (9.8 × 9.8 × 7.9 in). The maximum workpiece is 270 × 270 × 100 mm (10.6 × 10.6 × 3.9 in) at up to 150 kg (331 lb). Because the workpiece limit is close to the stroke, nearly the whole part is reachable in one setup.
03
Seibu lists Φ0.2 mm as standard and a range of Φ0.05 to Φ0.20 mm. The standard wire is therefore the upper limit, and the machine is set up to go finer from there. For wire below Φ0.05 mm, the MEX15 is listed from Φ0.03 mm.
04
The MEX15 is the smaller machine: 150 × 150 × 120 mm (5.9 × 5.9 × 4.7 in) of travel, a 12 kg (26 lb) workpiece limit and Φ0.03 to Φ0.15 mm wire. The M25LP has 250 × 250 × 200 mm (9.8 × 9.8 × 7.9 in) of travel, takes 150 kg (331 lb) and runs Φ0.05 to Φ0.20 mm wire.
05
The table lists Smart NC as the control device, MPSC-20 as the power supply and MF330 as the filtration device. Seibu's public page does not go further into the oil system, so tank capacity and fire protection details should be requested from the maker.
