Mitsubishi Electric SV12P

$100,000 - $170,000 Updated 2026-03-17

Key Specifications

X Travel

350 mm

Y Travel

250 mm

Z Travel

300 mm

Table Size

600 mm × 450 mm

max workpiece weight

500 kg

generator amperage

60 A peak (production transistor generator)

Overview

The Mitsubishi Electric SV12P is a production-oriented CNC sinker EDM machine from Mitsubishi Electric's SV series, designed specifically for high-throughput die-sinking in tool rooms, stamping die shops, and production mold facilities where cycle time and machine utilization are prioritized alongside surface finish quality. The SV series positions itself as a productivity-focused complement to the precision-focused EA-ADV line, sharing core generator technology while optimizing machine geometry and control workflows for repetitive production sinker EDM work.

The SV12P is equipped with Mitsubishi Electric's high-efficiency transistor generator system, rated to 60 A peak, with adaptive gap control that maintains productive discharge conditions during continuous production runs. The generator's duty cycle management is optimized for sustained high-utilization operation, ensuring consistent material removal rates during long production shifts without thermal performance degradation. For stamping die shops burning large volumes of punching die sets and for mold shops running repeat cavity programs, the SV12P's generator durability and cycle-to-cycle consistency directly reduce per-part erosion cost.

The SV12P's CNC system incorporates Mitsubishi Electric's production-focused operator interface with simplified parameter selection guided by the company's technology database. The SV series control prioritizes rapid program loading, quick electrode setup routines, and streamlined cycle start sequences that reduce non-cutting time between parts in high-volume production environments. ISO programming is fully supported, and the machine accepts DNC file transfer for shops managing programs centrally across multiple sinker EDM machines.

Surface finish performance on the SV12P covers the range from aggressive roughing at full generator current to finishing sequences achieving Ra 0.4 µm with appropriate electrode material and multi-pass strategies. While the SV12P does not offer the ultra-fine Ra 0.1–0.2 µm finishing performance of the EA-ADV series, its surface finish capability is fully adequate for the majority of stamping punch and die applications, automotive tooling components, and production mold inserts where consistency and throughput matter more than the finest achievable finish.

The SV12P occupies a strategic price-performance position in Mitsubishi Electric's sinker EDM lineup, offering the brand's generator reliability and service infrastructure at a lower capital cost than the EA-ADV series. For production-oriented shops that run predictable workloads and prioritize machine uptime and service accessibility, the SV12P is a practical choice backed by Mitsubishi Electric's global direct service organization.

Full Specifications

Parameter	Value
X-Axis Travel	350 mm
Y-Axis Travel	250 mm
Z-Axis Travel	300 mm
Table Size	600 mm × 450 mm
Max Workpiece Weight	500 kg
Generator Amperage	60 A peak (production transistor generator)
Surface Finish	Ra 0.4 µm (fine-finish mode)
Dielectric	Dielectric oil
CNC Control	Mitsubishi Electric SV-CNC (production-optimized M800 variant)
Machine Weight	Approx. 4,000 kg
Power Pack	80.0 a
Table Size W	21.65 in

Specifications sourced from machinetools.com — verified 2026-03-28

Strengths & Limitations

Strengths

Production-optimized generator and CNC workflows minimize non-cutting time in high-volume sinker EDM environments
Consistent cycle-to-cycle performance across sustained high-utilization production shifts
Lower capital cost than EA-ADV series while sharing core Mitsubishi Electric generator reliability
Mitsubishi Electric direct service network provides rapid support across North America, Europe, and Asia
500 kg workpiece capacity and 350×250×300 mm travels cover majority of stamping die and mold insert work

Limitations

Ra 0.4 µm fine-finish limit falls short of EA-ADV series Ra 0.2 µm for applications requiring finer surfaces
Simplified production CNC lacks some of the advanced parameter controls available on EA-ADV series
Not optimized for low-volume high-complexity precision work where EA-ADV generator sophistication is advantageous

Best For

Stamping die shops burning high volumes of punching dies and blanking dies in production campaigns Automotive tooling suppliers producing repeat cavity sets in hardened D2, H13, and M2 tool steel Production mold facilities requiring predictable throughput on repetitive mold insert work Job shops with predictable EDM workloads where cycle time and machine uptime drive profitability

Frequently Asked Questions

01 How does the SV12P differ from the EA12 ADV?

The SV12P uses a production-optimized generator and control focused on throughput and rapid setup in repeat-part environments, while the EA12 ADV carries the full MGF/SG advanced generator technology targeting precision surface finish and complex cavity geometry. The SV12P is the better value for volume production; the EA12 ADV is preferred for precision and fine-finish requirements.

02 What surface finish does the SV12P achieve?

The SV12P achieves Ra 0.4 µm in fine-finish mode with appropriate electrode material and multi-pass sequences. This is adequate for most stamping die and production mold insert work. Applications requiring Ra 0.2 µm or finer — such as optical mold surfaces or precision medical tooling — should use the EA12 ADV or EA28V-ADV instead.

03 Is the SV12P suitable for carbide erosion?

Yes. The SV12P can erode tungsten carbide with copper-tungsten electrodes using appropriate low-energy generator settings. Carbide erosion is slower than steel due to its high melting point and thermal conductivity, and carbide-capable generator conditions should be selected from Mitsubishi Electric's technology database.

04 Does the SV12P support automatic electrode changing?

Yes. The SV12P is compatible with Mitsubishi Electric's automatic electrode changer accessories, enabling unattended multi-electrode programs. For production stamping die applications where a fixed sequence of roughing and finishing electrodes is used repeatedly, AEC integration is a straightforward way to extend unattended run times.

05 What is the SV12P's dielectric system configuration?

The SV12P uses conventional dielectric oil in a standard filtration and circulation system appropriate for its work tank dimensions. Immersion erosion is the standard operating mode. Oil filtration and disposal should be managed according to local environmental regulations, which Mitsubishi Electric service teams can advise on during installation.