Seibu MM75UP
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 MM75UP cost?
Price estimate
We do not have a price for the Seibu MM75UP 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 MM75UP is an ultra-precision, water-specification wire EDM with an axis travel range of 750 × 500 × 310 mm (29.5 × 19.7 × 12.2 in). It carries the heaviest workpiece in Seibu's wire EDM tables, 1,000 kg (2,205 lb), and accepts work up to 900 × 850 × 300 mm (35.4 × 33.5 × 11.8 in).
Height is the point of this size. The third axis and the 300 mm (11.8 in) workpiece height let it cut tall die blocks and stacked plates, and the ±10° taper rating applies at a work thickness of 300 mm. The larger SuperMM80B has longer strokes at 800 × 600 × 230 mm (31.5 × 23.6 × 9.1 in) but stops at a 150 mm (5.9 in) workpiece height and 600 kg (1,323 lb). Tall or heavy work belongs here. Wide, thin plates belong there.
Wire choice is broad. Φ0.2 mm is standard and the listed range is Φ0.05 to Φ0.30 mm, so one machine can cut a thick section and still run fine wire for small inside corners. That bottom figure is what separates it from the M75HP, which shares every other row of the table and starts at Φ0.07 mm. A ±45° taper at 40 mm (1.6 in) is an option, on U-V axes that travel ±60 × ±60 mm (±2.4 × ±2.4 in).
Seibu lists the control as Smart NC, the power supply as MPSC-20 and the filtration device as MF75-01. The machine measures 2,280 × 2,410 × 2,100 mm (89.8 × 94.9 × 82.7 in) and weighs 5,600 kg (12,346 lb), so check floor loading and the route into the shop before ordering.
Full Specifications
| Parameter | Value |
|---|---|
| Max Workpiece Dimensions | 900 × 850 × 300 mm (35.4 × 33.5 × 11.8 in) |
| Max Workpiece Weight | 1,000 kg (2,205 lb) |
| Axis Travel Range | 750 × 500 × 310 mm (29.5 × 19.7 × 12.2 in) |
| Uv Axis Travel | ±60 × ±60 mm (±2.4 × ±2.4 in) |
| Max Taper Angle | ±10° / work thickness 300 mm (11.8 in); ±45° / 40 mm (1.6 in) as an option |
| Machine Dimensions | 2,280 × 2,410 × 2,100 mm (89.8 × 94.9 × 82.7 in) |
| Machine Weight | 5,600 kg (12,346 lb) |
| Wire Diameter | Φ0.2 mm is standard; Φ0.05 to Φ0.30 mm |
| CNC Control | Smart NC |
| Power Supply | MPSC-20 |
| Filtration Device | MF75-01 |
Specifications sourced from seibudenki.com — verified 2026-10-05
Strengths & Limitations
Strengths
- 1,000 kg (2,205 lb) maximum workpiece weight, the highest in Seibu's wire EDM tables
- Workpieces up to 300 mm (11.8 in) tall, with the ±10° taper rating given at that thickness
- Wire range of Φ0.05 to Φ0.30 mm covers fine-corner work and thick sections on one machine
- 750 × 500 × 310 mm (29.5 × 19.7 × 12.2 in) axis travel range
- ±45° taper at 40 mm (1.6 in) is available as an option
Limitations
- The 5,600 kg (12,346 lb) machine weight needs a suitable floor and rigging plan
- The ±45° taper is an option, not part of the standard machine
- No automatic wire feeding row appears in this model's table, unlike the SuperMM80B, whose table lists AWF-4 as standard
- Seibu's product page gives no accuracy or surface-finish figure specific to this model
Best For
Frequently Asked Questions
01
On Seibu's product page the two tables match except for one row. The MM75UP runs wire from Φ0.05 to Φ0.30 mm and the M75HP from Φ0.07 mm. Seibu also classes the MM75UP as an ultra-precision machine and the M75HP as a precision machine, but the page gives no accuracy figures that put a number on that difference.
02
The maximum workpiece weight is 1,000 kg (2,205 lb) and the maximum workpiece size is 900 × 850 × 300 mm (35.4 × 33.5 × 11.8 in). No other wire EDM on Seibu's product page lists a higher weight; the larger SuperMM80B is limited to 600 kg (1,323 lb).
03
Seibu rates it at ±10° for a work thickness of 300 mm (11.8 in). A ±45° taper at 40 mm (1.6 in) is listed as an option. The U-V axes that tilt the wire travel ±60 × ±60 mm (±2.4 × ±2.4 in).
04
The table names the control device as Smart NC and the power supply as MPSC-20, the same pair listed for every wire EDM on Seibu's product page. The filtration device for this size is the MF75-01.
05
The listed dimensions are 2,280 × 2,410 × 2,100 mm (89.8 × 94.9 × 82.7 in) and the weight is 5,600 kg (12,346 lb). Seibu's page does not state service clearances or utility requirements, so ask for the installation drawing before preparing the floor.
