Wire-Cut Flat Linear Electric Discharge Machines
Terminology (common use):
Electric Spark Discharge Wire-Cut Machine = Wire-Cut EDM = EDW
Fantastic Spark Gap
Correction Rate =
hundreds of times/sec
| Models: | NP400L | NP500L | NP600L |
| XY travel | 400 × 300 mm | 500 × 300 mm | 600 × 400 mm |
| UV travel | 80 × 80 mm | 120 × 120 mm | 160 × 160 mm |
| Z travel | 220 mm | 310 mm | 410 mm |
| Workpiece | max 500 kg | max 600 kg | mx 800 kg |
Please contact us for the
actual prices for the moment!
NP1060L
NP1280L
Ball screw drives
- Inferior acceleration – deceleration
- Backlashes, lost motions, large dead zone. Stick-slips.
- Shape distortion at the points of axes feed changes with especially negative effect on roundness
- Rapid wear + loss of positioning accuracy.
Flat Linear Motors
- Nearly instant acceleration-deceleration
- Free of backlashes, free of lost motions, negligable dead zone. Free of stick-slips.
- Lack of shape distortion at the points of axes feed changes
- Screw-less drive with Longevous Precision
Flat Linear Motors vs Shaft (tubular / cylinder) Motors
huge difference:
Some other machine-tools
∅28∼30 мм
Illustration from a manual of the shaft motor manufacture NPC
Due to the longitudinal waves and the heterogeneity of the parameters of the individual magnets and their parts, the shaft deforms (plays)
EXCETEK – Flat Linear
Flat (Planar) Linear Motors or Shaft Motors:
Your Choice?
Main disadvantages of the shaft motors:
- thrust deficit (ЕМ coil are coreless!)
- heat sink problems (or its absence!)
- thrust is generated at a distance from the plane of movements – at any movement the motor pulls one side of the table down and the other – up
- multidirectional runouts of the magnetic shaft and
dynamic asymmetry of the gap (thrust vector
“dances” chaotically from the direction of the feed!); - flimsy design (the shaft is attached only at the ends in
tension and requires retensioning intermittently).
Main advantages of the flat Linear Motors:
- reliability and longevity
- thrust is generated in a plane
close to the linear guides of the carriages; - highest dynamic precision throughout the entire operation
(the thrust vector coincides to the greatest extent with
the feed direction); - high power and thrust due to core EM coils design;
- perfect heat sink – the block of electromagnetic coils is
attached with the entire plane to massive structural
elements with high heat conductivity; - extra rigid structure;
- unalterably constant unchanging gap
Wire-Cut EDM with Flat Linear Servo
rigid flat linear motors
- Hi-thrust, high efficiency, low energy consumption
- Flat linear motors provide superb contour accuracy and super finish cutting
- NP wire-cut machine-tools are equipped with 0,01 µ (10 nano) scales
1,0 µ
0,01 µ
10 nano
The extra wide base of NP-series Wire-Cut EDMs prevents the work table from sagging at the extremes of travel ensuring horizontality precision.
NP-series Wire-Cut EDM – water cooling of the lower arm:
The water cooling (thermostating) of the lower arm (lower wire guide support arm) provided by the hydro unit prevents its thermal expansion in the process of electric spark cutting, increasing the final accuracy of the processed part.
LM roller guides guarantee the highest precision and stability.
The sturdy cast iron Meehanite base is designed using the Finite Element Analysis (FEM) method, which ensures rigidity and stability of the structure.
In 1990s Mr. Yoshikazu Matsuo invented and patented the world first automatic wire-threading device with wire annealing (Japanese Patent # 特許第2686796号). In later years his ingenious invention has been deeply modified and greatly improved.
NP-series Wire-Cut EDM AWT is the latest modification of the reliable wire threading mechanism created by Mr. Y.Matsuo.
Linear Wire-Cut EDMs
+ Fast (10 seconds!) & Reliable
Automatic Wire Threading (AWT)
New W600i Controller
Soft Version W20A
- CPU = Intel j1900
- Reliable industrial version of Windows
- CPU efficiency increases up to 600%
- Large 19″ sense-touch screen
- Graphics speed up to 600%. For a program of 30,000 blocks, the compilation speed is greatly different from the old version: 17 sec compared to 123 sec
- New generation PCB
Hi-Precision:
SKD-11;
t = 20 mm;
1 rough cut + 2 finishing;
contour accuracy 0 ∼ -2µ
Technical Maintanence and Support:
Innovation-Technical Center
of SodicoM-BG EOOD in Pomorie, Bulgaria
Excetek EDW
construction
features
DPM - Digital Power Management
The digital signals of the spark discharge density and state are fed to the CNC controller to facilitate calculation of the discharge area according to the discharge capacity,
Thus DPM enhances the precision of the discharge energy management and controls wire tension and water flow. The system improves the speed and accuracy especially in step shape parts machining.
| Effects of DPM (step shape part cutting) | Mode | с DPM | без DPM |
| Time | 39 min | 58 min | |
| Accuracy | ±3 µm | ± 15 µm |
Stable Discharge Module
Continuous cutting of 50 holes with shape accuracy control of up to 4 μm (inner)
Results of an official SGS (Société Générale de Surveillance) test:
achieved accuracy images
PRECISION: Pitch Error
X pitch error
Workpiece: SKD-11
Thickness: 30 mm
Number of cuts: 4
Y pitch error
PRECISION: Roundness
Workpiece:
tungsten carbide
Thickness: 50 mm
Wire electrode:
∅0,2 mm
Number of cuts:
1 rough + 2 finishing
Roundness = 2.6 µm
In 1990s Mr. Yoshikazu Matsuo invented and patented the world first automatic wire-threading device with wire annealing (Japanese Patent # 特許第2686796号). In later years his ingenious invention has been deeply modified and greatly improved.
NP-series Wire-Cut EDM AWT is the latest modification of the reliable wire threading mechanism created by Mr. Y.Matsuo.
Linear Wire-Cut EDMs
+ Fast & Reliable
Automatic Wire Threading (AWT)
Specifications | NP400L |
Max. work piece size | 750 × 550 × 215 mm |
| Max. workpiece weight | 500 kg |
| Table travel of XY | 400 × 300 mm |
| UV axes travel | 80 × 80 mm |
| Z axis travel | 220 mm |
| Ø wire electrode | ∅ 0,15 ∼ 0,30 mm |
Number of axes controlled | XY axes = flat (planer) linear motors + UV and Z axes = AC servo motors |
Maximum taper angle | ±22°/80 mm (for the taper ocer 15° wide diamond guides and nozzles are required— OPTION) |
Maximum cutting speed (OPTION) | SKD 11 Hardened steel / 63.5mm (2.5″) thickness 0.3mm (0.012″) Bedra Topas wire / 320mm2/min |
Machine tool dimensions | 2260 × 2525 × 2100 mm |
Machine tool weight | 3050 kg |
Tank capacity | 650 L |
Paper filter | 2 |
Deionizer | AUTO |
Chiller unit | AUTO |
Specifications | NP500L |
Max. work piece size | 850 x 550 x 300 mm |
| Max. workpiece weight | 600 kg |
| Table travel of XY | 500 × 300 mm |
| UV axes travel | 120 × 120 mm |
| Z axis travel | 310 mm |
| Ø wire electrode | ∅ 0,15 ∼ 0,30 mm |
Number of axes controlled | XY axes = flat (planer) linear motors + UV and Z axes = AC servo motors |
Maximum taper angle | ±26°/100 mm (for the taper ocer 15° wide diamond guides and nozzles are required— OPTION) |
Maximum cutting speed (OPTION) | SKD 11 Hardened steel / 63.5mm (2.5″) thickness 0.3mm (0.012″) Bedra Topas wire / 320mm2/min |
Machine tool dimensions | 2590 × 2575 × 2165 mm |
Machine tool weight | 3350 kg |
Tank capacity | 750 L |
Paper filter | 2 |
Deionizer | AUTO |
Chiller unit | AUTO |
Specifications | NP600L |
Max. work piece size | 1000 x 700 x 345 mm |
| Max. workpiece weight | 800 kg |
| Table travel of XY | 600 × 400 mm |
| UV axes travel | 160 × 160 mm |
| Z axis travel | 350 mm |
| Ø wire electrode | ∅ 0,15 ∼ 0,30 mm |
Number of axes controlled | XY axes = flat (planer) linear motors + UV and Z axes = AC servo motors |
Maximum taper angle | ±30°/100 mm (for the taper ocer 15° wide diamond guides and nozzles are required— OPTION) |
Maximum cutting speed (OPTION) | SKD 11 Hardened steel / 63.5mm (2.5″) thickness 0.3mm (0.012″) Bedra Topas wire / 320mm2/min |
Machine tool dimensions | 2670 × 2995 × 2300 mm |
Machine tool weight | 4700 kg |
Tank capacity | 900 L |
Paper filter | 2 |
Deionizer | AUTO |
Chiller unit | AUTO |
XXL and XXXL size Wire-Cut EDM
ALL MODELS OF SUBMERGED TYPE
Specifications | NP1060L-Z500 / -Z600 |
Max. work piece size | 1500 x 1000 x 495 / 595 mm |
| Max. workpiece weight | 3500 / 4000 kg |
| Table travel of XY | 1000 × 600 mm |
| UV axes travel | 260 × 260 mm |
| Z axis travel | 500 / 610 mm |
| Ø wire electrode | ∅ 0,15 ∼ 0,30 mm |
Number of axes controlled | XY axes = flat (planer) linear motors + UV and Z axes = AC servo motors |
Maximum taper angle | ±30°/100 mm (for the taper ocer 15° wide diamond guides and nozzles are required— OPTION) |
Maximum cutting speed (OPTION) | SKD 11 Hardened steel / 63.5mm (2.5″) thickness 0.3mm (0.012″) Bedra Topas wire / 320mm2/min |
Machine tool dimensions | 4210 / 4310 × 3260 × 2590 / 2890 mm |
Machine tool weight | 7650 / 8050 kg |
Tank capacity | 2500 / 3200 L |
Paper filter | 4 |
Deionizer | AUTO |
Chiller unit | AUTO |
Specifications | NP1280L-Z500 / -Z600 |
Max. work piece size | 1650 x 1200 x 495 / 595 mm |
| Max. workpiece weight | 4000 / 4500 kg |
| Table travel of XY | 1200 × 800 mm |
| UV axes travel | 260 × 260 mm |
| Z axis travel | 500 / 610 mm |
| Ø wire electrode | ∅ 0,20 ∼ 0,33 mm |
Number of axes controlled | XY axes = flat (planer) linear motors + UV and Z axes = AC servo motors |
Maximum taper angle | ±30°/100 mm (for the taper ocer 15° wide diamond guides and nozzles are required— OPTION) |
Maximum cutting speed (OPTION) | SKD 11 Hardened steel / 63.5mm (2.5″) thickness 0.3mm (0.012″) Bedra Topas wire / 320mm2/min |
Machine tool dimensions | 4400/4510 × 3765 × 2585/2890 mm |
Machine tool weight | 10600/10850 kg |
Tank capacity | 3000/3300 L |
Paper filter | 4 |
Deionizer | AUTO |
Chiller unit | AUTO |
Standard Accessories:
- XY linear scales 10 nm (0.01 µm)
- AWT (Automatic Wire Threading)
- Brass wire electrode (× 1 reel / 3 kg)
- Clamping tool (× 1 set)
- Ion exchange resin (× 10 liters)
- Vertical alignment jig (× 1 set)
- Paper filters (× 2 pcs)
- Diamond guides (× 2 pcs)
- Upper & lower flushing nozzles (× 2 sets)
Options:
- Clamping beam
- Super Finish Circuit (< Ra=0.2 µm)
- Rotary indexing table of W-axis
- AVR 15кVA
- Jumbo Feeder L-50A
- SMS option
- Signal Tower
- Remote Monitor System
- Auto Measuring System