New Sodick Sinking EDM

AL series: AL40G / AL60G / AL80G

Hi-Precision Flat Linear Die-Sinker EDM

Sodick linear EDM AL40G sample
  • AL40G: XYZ travel = 400 × 300 × 270 mm 
    max workpiece weight = 550 kg
  • AL60GXYZ  travel = 600 × 420 × 370 mm
    max workpiece weight = 1500 kg
  • AL80GXYZ travel = 850 × 520 × 420 mm
    max workpiece weight = 3000 kg

More than 60 000 Sodick Flat Linear Motor EDM in operation throughout the World

Manufacturing of machine-tools
with flat linear motors since 1998

The first and the only manufacturer
of die-sinking EDMs
with linear motors

NANO-WEAR: less electrodes – more job

Sodick linear EDM AL40G C-axis head
Ceramic electrode plate (above)
and ceramic work table 
  • Programmable 3-sided rise / fall work tank
  • Wide open space allows easy workpiece set up

New Sodick Sinking EDM 
ALC Series Feature

  • X Y Z axis FLAT Linear Motors
    As all Sodick EDMs, the “AL series” machines are equipped with the in-house developed and manufactured rigid flat (planer) type core linear motors (since 1998). High-power and high torque motors demonstrates high-speed and super high response machining. 
    Z axis Twin Linear
    axis speed up to 600 mm/sec with acceleration of up to 2G
  • Linear motor cooling unit
  • “M4-LINK” – new Sodick Motion Control (SMC)
    New proprietary SMC “M4-LINK”  (developed by Sodick America Corporation, San Jose, California) replaced the more than successful K-SMC system.
    Response time is shortened to 0.4~1.0 μs. The system now precisely corrects the position of an electrode in the gap up to 1000 times per sec
  • X Y Z axis absolute linear scales 10 nano (0,01 micron) Heidenhain.
Sodick EDM Heidenhain 10 nanometer backloop linear scale
  • Ceramic Work-Zone Improvement in geometric accuracy by 3-4 times in comparison with metal-plastic working areas of non-Sodick EDMs.
    Sodick ceramics thermal expansion is merely 4.5×10-6/°С.

    Complete galvanic (electric) isolation of the Work-zone.
Sodick ALC ceramic-head-Z-axis
Sodick EDM ceramic work-zone parts
Lightweight ceramic quill + work table plate + electrode plate

The ceramic quill developed by Sodick featuring lightweight, high rigidity and no thermal deformation is driven on both sides by linear motors in a symmetrical manner (Sodick patent) and enables extremely accurate and smooth motion without causing deviation or distortion of the slideways.

  • Hand scraped contacting bearing surfaces of meehanite cast iron parts
  • All bearing construction parts of low thermal expansion meehanite cast iron (11×10-6/°С)
  • Symmetrical machine base design
  • THK SSR guideways (caged ball technology) designed for use primarily in precision measuring machines. The guideways can withstand movements 100 times more than the distance from the Earth to the Moon and back.


Newly Developed “SP Power Supply” Improves Machining Performance

The communication and throughput speed has improved in the newly developed “SP Power Supply” for the die-sinker EDM, which increased the motor control response speed by more than double. The adoption of the new “TMM4” and “BSN4” circuit improves the quality and speed of the overall electrical discharge machining range.

Copper-SteelEnhanced motor control response and the development of the BSN4 finishing circuit increases the machining speed

Copper Tungsten – WC

The new TMM4 circuit increases the machining speed for copper-tungsten/ carbide

Copper Graphite – WC

Improved control resolution of the SGF function
Added support for copper-graphite (Cu-Gr) increases the machining speed

Copper – Aluminum

SGF control adopted for aluminum to increase the machining speed

Sodick AL-G machining speed increase by 20%
искусственный интеллект в электроэрозии - Sodick AL60G
Sodick Inconel Rib Machining
  • Smallest Corner R Machining
  • Stainless St – Cu, depth 0.3 mm
  • Surface Finish – Ra 0.12 µm (Rz 0.5 µm)
  • Bottom Corner R – 4 µm
Sodick Multi-hole Machining by Intricate Electrode
  • Multi-hole Machining by Intricate Electrode
  • Stainless steel – Cu electrode, depth 5 mm
  • Surface Finish – Ra 0.072 µm (Rz 0.41 µm)
  • Electrode Wear – finishing 0.002 mm (bottom)
Sodick linear EDM AL40G sample
Sodick AL-G EDM CuW-WC sample

Machining WC workpiece CuW electrodes using “TPC4”. Total Machining Time reduced by 28% compared to a conventional

искусственный интеллект в электроэрозии - КЧПУ-генератор SP

The linear motor drive generates an ultra high-speed (up to 600 mm/sec) pumping effect efficiently removing chips, gas and carbon which exist between the electrode and the work piece. Therefore, machining can be performed without the need for flushing.

Ball-Screw EDM
flushing (non-Sodick)

Ball Screw SLOW JUMP with flushing

Uneven flow of flushing results in not only residual chips, gas, and tar, but also uneven concentration of dielectric fluid

Sodick Linear EDM
no flushing

Sodick Linear Rapid Jump without flushing

The rapid upward motion generates negative pressure between the electrode and the workpiece surface, where dielectric fluid rushes in together with chips, gas and tar.

Ball Screw SLOW DOWN with flushing

The residual chips, gas, and tar cause secondary discharge, leading to unstable gap conditions, discharge spots or excessive discharge.

Sodick Linear Rapid Down without flushing

The chips, gas and tar existing between the electrode and the workpiece are efficiently ejected together with the dielectric fluid.

Long Pin Gate Machining

Mirror and Matte Finishing

Sodick AL-G EDM sample - long pin gate

No Flush EDM process using the pump effect of fast moving electrode  (600 mm/min)

Workpiece Steel (HR50-53) – Cu Electrodes
Machining Depth = 30mm (tapered 1°/side)
Pilot Hole – 0.80 × 27 mm + 0.30 × 3 mm
Outlet Diameters = 0.50 mm
No. of Electrodes: Roughing (mirror and matte finish): 1 Semi-Finishing
(Mirror and matte finish): 1 Finishing
(Mirror finish): 1 (Total 3 / hole) (Matte finish): 1 (Total 3 / hole)
Electrode undersize = 0.05 mm/side

Surface Finish (mirror) = Ra 0.08 µm
Machining Time mirror = 2h 25 min

Surface Finish (matte) = Ra 0.15 µm
Machining Time (matte) = 1h39 min

BSN4 Machining Time improved by 21%.
High-speed finishing with uniform surface quality

Copper electrode – steel workpiece (SKD-11)
Electrode size – discharge area approx 10 mm dia
Machining depth = 1 mm // undersize = 0.20 mm/side
Surface finish (roughness) = Ra 0.11 µm (Rz 1.0 µm)
All cutting conditions generated by LN Professional (Artificial Intellect)

  • Dielectric fluid cooling unit
  • SVC circuit
  • “SGF4” Nano-Wear Discharge Unit
  • TMM4
  • BSN4 finishing circuit
  • SP controller
  • 19″ TFT colour screen
  • Intelligent Q³vic EDM
  • LN Professional AI software for optimum condition search
  • No-Flush Machining
  • Remote controller
  • 3-side rise and fall work tank
  • Clamping chuck
  • LAN interface
  • USB port
  • Totalising hour metre
  • Work light
  • C-axis SEC10 (20 rpm)
  • ATC Unit (4, 12, 16, 32-station)
  • SCF72P High-precision rotary head (2000 rpm)
  • 40A Booster
  • Table Down 50 mm (Factory option)
  • Table Down 100 mm (Factory option)
  • Oscilloscope
  • Active Power Restart (UPS)
  • Automation system
  • 8-axis simultaneous control SP-E (Factory option)
  • Custom Colour
ЭЭ станок AL40G - LED индикация

LED lights on both machine sides and head

on stand-by


during operation
& program running

program stopped

ЭЭ станок AL40G - LED индикация
Sodick Green EDM
Sodick 10 years positioning accuracy guarantee

Technical Specification


XY axis travel400 x 300 mm
Z axis travel270 mm
C axis head angle indexing (2 options)SEC-10: 0,001º (3,6″)
or SCR72P: 1/720000°
C axis head rotation speed  (2 options)SEC-10: 2 – 20 rpm
or  SCR72P: up to 2000 rpm
Work table dimensions (Sodick Ceramics)600 × 400 mm
Work tank dimensions (W x D xH)750 x 620 x 350 mm
Work Tank Fluid Level (Min to Max)
100 ∼ 300 mm
Work Tank Capacity
190 Liters
Distance from clamp chuck to table top (EROWA COMBI / EROWA ITS)150 ∼ 420 mm
Distance from clamp chuck to table top (3R COMBI / 3R MACRO)133 ∼ 403 mm
Max workpiece weight550 kg
Max electrode weight50 kg
Distance from floor to table top830 mm
Machine Tool Dimensions (W x D x H) (Including a Power Supply and Dielectric Tank)1,675 x 2,600 x 2,330 mm
Machine installation dimensions2525 x 3,535 mm
Machine tool weight4,100 kg
Total power input3-∅, 50/60 Hz, 10 kVA
Air pressure / flow

0.65 MPa /100NL/min

Sodick AL40G Die-sinker EDM layout-drawing
Sodick AL40G die-sinker EDM front view drawing

Technical Specification


XY axis travel600 x 420 mm
Z axis travel370 mm
C axis head angle indexing (2 options)SEC-10: 0,001º (3,6″)
or SCR72P: 1/720000°
C axis head rotation speed  (2 options)SEC-10: 2 – 20 rpm
or  SCR72P: up to 2000 rpm
Work table dimensions (Sodick Ceramics)750 × 550 mm
Work tank dimensions (W x D xH)950 x 740 x 450 mm
Work Tank Fluid Level (Min to Max)
200 ∼ 570 mm
Work Tank Capacity
330 Liters
Distance from clamp chuck to table top (EROWA COMBI / EROWA ITS)200 ∼ 570 mm
Distance from clamp chuck to table top (3R COMBI / 3R MACRO)183 ∼ 533 mm
Max workpiece weight1,500 kg
Max electrode weight50 kg
Distance from floor to table top850 mm
Machine Tool Dimensions (W x D x H) (Including a Power Supply and Dielectric Tank)1,875 x 2,930 x 2,570 mm
Machine installation dimensions2,600 x 3,850 mm
Machine tool weight5,350 kg
Total power input3-∅, 50/60 Hz, 10 kVA
Air pressure / flow

0.65 MPa /100NL/min

Sodick AL60G EDM layout-drawing
Sodick AL60G die-sinker EDM front view drawing

Technical Specification

XY axis travel850 x 520 mm
Z axis travel420 mm
C axis head angle indexing (2 options)SEC-10: 0,001º (3,6″)
or SCR72P: 1/720000°
C axis head rotation speed  (2 options)SEC-10: 2 – 20 rpm
or  SCR72P: up to 2000 rpm
Work table dimensions (Sodick Ceramics)1,100 × 700 mm
Work tank dimensions (W x D xH)1,400 x 950 x 500 mm
Work Tank Fluid Level (Min to Max)
250 ∼ 670 mm
Work Tank Capacity

690 Liters

Distance from clamp chuck to table top (EROWA COMBI / EROWA ITS)

250  ∼ 670 mm

Distance from clamp chuck to table top (3R COMBI / 3R MACRO)

233 ∼ 653 mm

Max workpiece weight3,000 kg
Max electrode weight100 kg
Distance from floor to table top840 mm
Machine Tool Dimensions (W x D x H) (Including a Power Supply and Dielectric Tank)2,160 x 3,225 x 2,900 mm
Machine installation dimensions3,100 x 4,570 mm
Machine tool weight9,800 kg
Total power input3-∅, 50/60 Hz, 11 kVA
Air pressure / flow

0.65 MPa /100NL/min

Sodick EDM AL80G layout drawing
Sodick AL80G-CE EDM Front view
CNC Power Supply SP/SP-E
Max. machining current

AL40G: 40A
AL60G: 40A (80A=option) 
AL80G: 80A

Discharging power supply unitOptimum pulse control for TMM 4 power supply (SGF, BSN4, SVC)
CNC unit

Multi-tasking OS, M4-LINK system

Memory device

SSD card, External USB stick


External memory, Touch panel screen, Keyboard




Standard 101-key, Alphanumeric and symbols, Function key

Remote controller (standard)

Standard jog (switchable), Assist A0 to A3, Clamp / Unclamp,etc.

Positioning command

Incremental and absolute,
±999999.999 / ±99999.9999 /±999.99999 (switchable)

Simultaneous control axes

4 axes XYZC (max. 8 axes with SP-E=option)

Min. drive unit / input command

0.01 µm / 0.001 µm

AJC speed (max)

XY axes = 10 m/min // Z axis = 36 m/min (600 mm / sec)

Position detection mechanism

Full closed loop (Absolute Linear scales 0,01 µm=10 nanometers)


Pitch error, plane pitch error and torque corrections for each axis

Dielectric Tank
External dimensions (W x D x H)built-inbuilt-in2,060 x 1,140 x 2,230 mm
Tank weightbuilt-inbuilt-in600 kg
Tank Capacity (liters)285 l465 l845 l

Required amount of dielectric fluid (liters)

 330 l 560 l  1000 l
Dielectric fluidEDM Oil preferably with Flash Point ( PMCC, °C, Min.) = 110°C.
We recommend 
EDMfluid® 108MP-S (Steelfluid/Italy)
Filtering system2 Replaceable paper filter (MF-2400, Pressurized) or similar

4 Replaceable paper filter (MF-2400, Pressurized) or similar

Highly Rigid Structure


Together with a highly rigid machine structure, the adoption of precision correction function “TH COM” reduces the amount of thermal displacement by 50% compared to conventional models.

The Sodick Linear EDM AL-G series is equipped with the new precision thermal compensation system “TH COM”* as standard.
Temperature sensors are installed throughout the machine body and the CNC records the temperature fluctuation. It automatically compensates the axes movements tominimise the thermal displacement. The recorded temperature data can be displayed on the controller screen

The Sodick Linear EDM machine cast construction is designed with heavily ribbed sections to provide superior long-term rigidity and stability. The surfaces to which the THK SSR Type Ball-Type Linear Guideways, are mounted on scraped by hand surfaces to ensure a perfectly flat surface and outstanding machine geometry + longevity.

литая станина ЭЭ станков AL-G
AL-G series aero harmonic temperature control

Aero Harmonic System:

In the new Sodick Linear EDM is provided in-machine air & dielectric circulation system to maintain the internal and external temperature of casting.


Дверца с противовесов AL60G

Construction Features

Renewed CE door with new design on AL-G series.

The counter balance system is adopted, realising a longer life of the door


Common design features of all Sodick EDMs:

Meehanite® cast iron with a low thermal expansion of 11×10-6/°C in all machine-tool bearing structures (bed, column, table carriage, taper mechanism trusses).

Hand-scraped contacting bearing surfaces
for the linear guides and the contacting surfaces of the bearing structures being assembled. Manual precision scraping of cast iron after milling. Manual scraping prevents deterioration of the machine structure, which is inevitable if the contacting bearing surfaces are ground rather than scraped.

Only HAND SCRAPING eliminates waveness that inevitably arises on surfaces as a collateral result of milling.
Only HAND SCRAPING eradicates microcracks, burnings, internal stresses and eliminates charging (impregnation) of surfaces with microabrasives.
Only HAND SCRAPING can make it possible to build machine-tools with long-life accuracy lasting for decades.

High-torque precision flat linear motors (LMs) of Sodick in-house design and manufacture, starting with in-house rare earth Ne-Fe-B magnets.

Flat or planar linear motors with core coils inherently provide a substantial power and thrust reserve. This not only improves rapid movement and positioning accuracy but also ensures consistent performance under varying load conditio

The design of Sodick’s planar linear motors ensures minimal heat generation. This is a major advantage, especially in precision applications like EDM, where even slight thermal variations can affect accuracy.

Flat (planar) linear motors (LM) with core EM coils mounted on cast iron supporting structures have excellent heat dissipation and virtually no heating under light loads. However, in die-sinking EDMs, the LMs operate under prolonged excessive loads (relaxation in Z and oscillation in XY), which means that heating is inevitable. To prevent overheating, all Sodick die-sinking EDMs are equipped with an effective patented LM cooling system (pumping of lubricant through tubes around the EM coils).

The use of a specialized cooling system, particularly one that is patented and designed explicitly for the unique requirements of their die-sinking EDMs, showcases Sodick’s commitment to producing machines that deliver optimal performance across a range of conditions. It is these kinds of innovations that help manufacturers maintain a competitive edge in the market.

Ceramic Work Zone

By incorporating in-House ceramic components into their EDMs, Sodick ensures a higher level of precision and consistency in the machining process. The improved geometric accuracy of the electrode position relative to the workpiece can result in better part quality, reduced waste, and increased efficiency in the machining process.

The thermal expansion of all supporting structures of the work zone is 2 times less than that of granite and 3.5 ∼ 4 times less than that of steels, thanks to our own electro-insulating ultra-strong ceramics FineXCera® with ultra-small thermal expansion = 4.5 × 10-6/ °С

Sodick ceramics are extremely rigid and can resist bending or deformation under load. This property ensures that the worktable and electrode plates remain flat and stable during the EDM process, leading to more consistent and accurate results.

As non-conductive materials, Sodick ceramics provide excellent electrical insulation, which is crucial in the EDM process to ensure that electrical discharges occur only where intended.

Achieving complete galvanic isolation of the machined part in all Sodick EDMs has several benefits:

  1. Enhanced Sparking Capabilities: If a machined part is not in contact with the ground, it provides the opportunity to generate spark pulses that may be impossible on machines with a metal table where the workpiece is grounded. This leads to unique machining characteristics and outcomes that aren’t achievable with traditional grounded setups.
  2. Efficient Use of Bipolar Pulses: Bipolar pulses involve the use of both positive and negative voltage swings. Without the grounding restrictions, the EDM utilizes these bipolar pulses more effectively, potentially leading to faster material removal rates, better surface finishes, or other desired machining characteristics.
  3. Special Pulse Utilization: Beyond just bipolar pulses, galvanic isolation can allow for the implementation of other specialized pulse types. Each pulse type can have its own characteristics in terms of material removal, surface finish, and machining efficiency.
  4. Safety and Protection
  5. Reduced Electrical Noise
  6. Enhanced Control: a wider range of machining parameters and potential outcomes based on the specific needs of the job.

By having an EDM setup that offers complete galvanic isolation, manufacturers and machinists can potentially push the boundaries of what’s possible with EDM, experimenting with and benefiting from pulse types and parameters that may be unavailable or less effective in traditional grounded setups.

Sodick EDM service and maintanence

Innovation-Technical Centers "SodicoM"