High Precision Heavy Duty EDM

CNC A-Series EDM

CNC A-Series EDM

The Moldmaster CNC A-Series EDM brings you High Speed, high Accuracy, better precision, and fully automatic elevating work tank, brings a brand new user experience.

Tire EDM

Tire EDM

Specialize for roller, round, tire mold.


High-Quality High Precision Heavy Duty EDM Machines Supply Since 1975 | Yihawjet Enterprises Co., Ltd.

Yihawjet Enterprises Co., Ltd., since 1975, is a professional High Precision Heavy Duty EDM | wire-cut EDM machine manufacturer located in Taiwan. CNC EDM, CNC wire-cut machines and 7-axes EDM are masterworks of precision technology with a supreme product quality. The product including: Die sinking EDM, tire mold EDM, aerospace industry 7 axes EDM, drilling EDM, automatic back flushing equipment.

CE and ISO supply of hydraulic servo EDM, power of discharging machining of transistor control circuit, DC servo system avoiding hydraulic servo maintenance. Developed high-speed MOSFET generator system, lowering electrode wear rate to a large extent and increasing machining speed. High performance of "3 axes synchronous discharging technology.

Moldmaster has been offering customers high-quality wire-cut EDM machines since 1975, both with advanced technology and 42 years of experience, Moldmaster ensures each customer's demands are met.

High Precision Heavy Duty EDM


Ngau Tau spark machine

High Precision Heavy Duty EDM - High Precision Heavy Duty EDM
High Precision Heavy Duty EDM


Each aspect of machine must be engineered to be extremely durable and exactingly precise.


  • Tool - Finite Element Structure Analysis
  • New Power Supply & Control System
  • 0.05% or less ultralow consumption circuit
  • HQSP The High Quality Super Polishing Equipment (optional)
  • Windows interface (optional)


  • Positioning accuracy:± 3μm / 300mm
  • Repetition accuracy:± 1μm

Machine Specification

ITEMUNITM1060 M860M645M540+
Work tank internal dimensionsW x D x H (mm)2100x1350x6501950x1350x6501550x1280x6201100X620X400
Max. workpiece dimensionsW x D x H (mm)1900x800x6001800x800x6001400x750x550820X450X400
Max. workpiece weightkg300030002000800
Max. electrode weightkg300300300120
X、Y、Z axis strokemm1000x600x500800x600x500650x450x500500X400X400
Maximum moving speedmm/minx,Y axis:1000   Z axis:2000 X,Y axis:2000  Z axis:2000
Table dimensionsW x D (mm)1320x8001320x800



Distance between plate and table






Machine tool dimensionsW x D x H (mm)2650x2750x31102500x2750x31102120x2850x31001600X2380X2400
Volume of electric cabinet W x D x H (mm)650X1080X1750
Machine tool weightkg10500647056602500
Weight of electric cabinetkg365kg(35A) / 390kg(50A) / 420kg(70A) / 470kg(105A) / 570kg(140A) / 620kg(175A) / 670kg(200A)
Available power suppliestype50A(5.5KVA) / 70A(8KVA) / 105A(12KVA) / 140A(16KVA) / 175A(20KVA) / 200A(24KVA)} 35A(4KVA) / 50A(5.5KVA) / 70A(8KVA) / 105A(12KVA)
Dielectric reservoir capacityL240022001600650
Setting unit incrementsμm1111
Optical scale resolutionμm1111
  • The work tank internal dimensions means the applicable range on the table.
  • Leave about 60cm between the machine and the wall or other machine.
  • Specifications are subject to change without prior notice due to continual research and development.
  • * is optional.
  • Standard Accessories: Fire extinguisher x 1 set, Electrode chuck x 1 set, Linear scale x 1 set, Tools box x 1 set、Flush magnetic base x 1 set, Filter x 2 pcs, Work lamp x 1 pc, Cooler x 1 set.


Auto Tooling System3R (MACRO), EROWA (ITS)
Linear magazine*Electrode No.pcs4 / 6
Max. Weight of Electrodekg5
Max. Total  weight of electrodekg15(Geometric symmetry)
Diameter/Iengthmm65 / 120

Rotary magazine*

Electrode No.pcs12 / 16 / 20
Max. Weight of Electrodekg4
Diameter/Iengthmm65 / 120
C-axisStructureBuilt-in type
Rotation  rpmMOLDMASTER(0~14),3R (0~14), EROWA (0~14)
Max. Eiectrode carrying weightkg25
Max. Electrode moment of inertiakgcm275
Dielectric-fluid Injection/Suction Select6 / 1
Programmable Flushing NozzleO
Dielectric-fluid Cooler UnitStd.
Voltage Regulator Unit (AVR)**O
Automatic Back Flushing SystemO
System InterfaceDOS / WINDOWS (Touch panel)
Graphite Machining Circuit (MD9)O
Large area Machining Circuit (MD8)O
Cemented Carbide Machining Circuit (MD7)O
Micro-finish / Mirror Polish Machining Circuit (MD4/6)O
Super-low Wear Circuit (MD3)O
High Quality Super Polishing System (HQSP***)NANANAM1270SM1060SM860SM645SM540S+
  • *Linear and Rotary magazine must use air chuck (3R, EROWA).
  • **When variation of the AC power source is +15% over or -10% under, we recommend using AVR to improve stability.
  • ***The relationship between machining area and surface roughness of HQSP is: 50Ø (Ra 0.15µm), 400cm² (Ra 0.25µm).

Machining Cycles-Positioning Function

NA:Not available不提供  O:Available提供
Control SystemDos/Windows
Positioning FunctionC15-AC21-BC21-AWindows
Error AlignmentOOOO
Millimeter / Inch Unit ConversionOOOO
Multiple Work CoordinatesOOOO
Inner / Outer MeasurementsOOOO
Edge, Hole/Groove, Plate/Column Center MeasurementsOOOO
Reference Ball, Electrode Offset CompensationOOOO
Electric Discharge Position (EDP)OOOO
Quick StopOOOO
Multi-jog Simultaneously MovingOOOO

Machining Cycles-Machining Cycles Functions

NA:Not available不提供  O:Available提供
Control SystemDos/Windows
Machining Cycles FunctionsC15-AC21-BC21-AWindows
Plunge Machining(G111)OOOO
Expand machining(G121)OOOO
Half Barrel Machining(G123)OOOO
Orbital Machining(G131)OOOO
Spiral Plunge Machining(G133)OOOO
Pyramid Machining(G135)OOOO
ISO-GAP Machining(G153)OOOO
Multi-angle Machining(G161)OOOO
CLW/CCLW Helical Machining(G171)NANAOO
Vector Loran Machining(G181)OOOO
Line/Grid Position(G200)OOOO
Arc/Circle Position(G210)OOOO
Contour Return(G400)OOOO
Reference Plane Return(G401)OOOO
Fast Feed for Positioning(G00)OOOO
2D Contour Machining(G01, G02, G03)OOOO
3D Contour Machining(G01, G02, G03)OOOO
C Axis Indexing(G00 + C)NAOOO
Trans. Machining(G01 + C)NAOOO
Arc Trajectory Machining(G02 / G03 + C)NAOOO
Work Plane Selection(G17, G18, G19)OOOO
Reference Point Return(G28, G29)OOOO
Work Coordinate System(G54 ~ G61)OOOO
Work Zero Setting(G92)OOOO
Multi-point MachiningOOOO
Electrode Compensation(H Code)OOOO
Miscellaneous Function(M Code)OOOO
Polishing Time Control(Q Code)OOOO
Related Case
  • Large Hexagonal Mold - Large Hexagonal Mold
    Large Hexagonal Mold

    Machining Area: Mold of 19mm Equilateral Hexagon Electrode Material: Chromium Copper Workpiece Material: H9 High-speed Steel No. of Electrode Using: 2 Machining Depth: 22mm Machining Time: 3 hours & 30 minutes Surface Roughness: Ra 0.9μm

  • Mold of M8 Screw - Mold of M8 Screw
    Mold of M8 Screw

    Machining Area: Mold of M8 Screw Electrode Material: Cathode Copper Workpiece Material: SKD-61 No. of Electrode Using: 1 (got pre-machining) Machining Depth: 8.7mm Machining Time: 2 hours Surface Roughness: Ra 0.9μm

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