NP Series


NP Series


  • Comply with TUV CE comformity, both safety and desired design with easy operation.
  • Power slider door design to save installation space and light operation.


NP400L (Submerged Type)
Max. work piece size
750 x 550 x 215 mm
Wire diameter
0.15 - 0.3 mm
Max. work piece weight
500 kg
Number of axes controlled
XY axis linear motor, UV Z axis AC servo motor
Table travel of X Y
400 x 300 mm
Maximum taper angle
±22°/ 80mm with wide diamond guide and nozzle
U & V axis travel
80 x 80 mm
Machine dimensions
2260 x 2525 x 2100 mm
Z axis travel
220 mm
Machine weight
3050 kg
Dielectric Tank
Tank capacity
650 L
Paper filter
2 / pcs
Chiller unit


Mechanical Structure-NP400L
High Precision
  • Smart Conrner Control、Stable Discharge Module、SFC Super Finish Circuit.
  • DPM module、Entrance mark control、EF Electrolysis Free generator system.
Cost Saving
  • Intellignet Power Management、Save Wire Consumption、Low running cost.
Intelligent Networking
  • Remote monitor and management、Connect all Controller、Portable device monitor.
  • High speed Auto Wire Threading、Workpiece Transfer Robot、Auto Measurement and Correction.

Machine feature

1. Rigid U, V truss design

2. Stainless steel work table with hardness HRC 50°.

3. Cast machine base designed using FEA to achieve increased rigidity.

4. Extra wide machine base.

Linear Sheft Motor Driver System


Provides constant temperature of the entire machine during processing that is beneficial to precision, with its features of magnetic flux in high thrust, high efficiency, low energy consumption and low temperature varieties that can achieve lowtemperature circulation of liquid/flow within linear motor.

Povides high precision in shaping and mirror polishing during processing, with its features of linear scale in 0.1 μm high resolutions and of controller in high resolution.

1. Coil

2. Magent

3. Shaft

4. Coil

5. Magnetic flux

Improved Operability

4-side Hardened Stainless Steel Table
  • Comply with TUV CE conformity, both safety and metal desired design with easy operation.
  • Power slider door design to save installation space and light operation.
Intelligent machining mode
Graphical Interface

The HMI panel is easy to operate, using class leading ergonomic technology

Intelligent Machining mode

Workpiece postioning function

Maintenance and Diagnosis information

Technology data search function

Graphical interface

Useful function

DPM-Digital Power Management
DPM - Digital Power Manager

DPM is capable of detecting digital signale signals of sparking density, providing feedback to the CNC system and calculating the sparking size.
It controls the sparking energy, wire tension force and water pressure more precisely; increases cutting speed and accuracy when cutting on irregular thickness workpieces.

Comparison using DPM technology
Mode Speed mode Accuracy mode
Enable 39 Min. ±3µm
Disable 58 Min. ±15µm

(Under factory test conditions)

Stable discharge module

50 holes, one cut, and shape accuracy within 4 micron.

50 holes, one main cut and shape accuracy

SGS vertification workpiece IMG

SCC II Smart Corner Control

Corner eroded reduce 50%

Shape error reduce 40%

SFC-Super Finish Circuit

unit : Ra

High frequency sparking energy provides Ra0.2um surface roughness with 1 rough cut plus 6 sking cuts.
  • Material : Tungsten Carbide
  • Thickness : 30mm
  • Best Surface Roughness Ra 0.14 µm

Entrance Mark Control
Concave section depth within surface roughness, Greatly reduce polishing time.

No control : Entrance mark depth 6µ

EM control : Concave section depth within surface roughness

Smart Radius Control
Type Without control Using control
A 5.001 mm 5.001 mm
B 4.994 mm 4.999 mm
Error 7 µm 2 µm
Auto Wire Threading
Auto Wire Threading

200mm Submerge threading

200mm Submerge threading

400mm thickness threading in break point

High Speed Auto Wire Threading System
Workpiece thickness 100mm
  • Wire annealing and cutting : 10 sec
  • Threading : 10 sec

Reliable Auto Wire Threading system

The EXCETEK AWT is very sophisticated design that provides continuous unmanned operation day and night. Unlike other systems it can thread at the point of the wire breakage.

A water jet function enables the machine to thread workpieces up to 500mm.

On-line measurement system
On-line measurement system

CBefore the machining, on-line measurement and calibration instead of the conventional one, significantly reduce the time to calibrate the workpiece. With the macro command the automatic measurement calibrates the reference point; enhance the machining accuracy. After machining, directly on-line measure the workpiece on the table; avoid the unexpected error from dismount/mount the workpiece.

Multi-workpiece machining
  • Automatic compensating the 3D flatness of workpiece.
  • Automatic compensating the parallelism of workpiece (AR)
  • Automatic machining reference point measurement.
  • Processing AWT automatic wire threading
  • Go to the next workpiece to continue processing.
Processing automation
  • Automatic compensating the parallelism of workpiece (AR)
  • Automatically calibrate the reference point
  • Processing AWT automatic wire threading
  • Automatically measure the results after machining
  • Export the measurement report

Automatic Measurement Application
Cutting Technology
Cutting Technology
Type Without control Using control
A 0 0
B 0 ~ -2 µm -8 ~ -10 µm
C 0 0
D 0 ~ -2 µm -8 ~ -10 µm
Remote Monitor System
Remote Monitor System


Standard Accessories

  • XY axis linear scale
  • Brass wire x 1 spool
  • AWT
  • Clamping tool x 1 set
  • Ion exchange resin x 10L
  • Vertical alignment jig x 1 set
  • Paper filter x 2 pcs
  • Diamond guide x 2 pcs
  • Upper and lower flushing nozzle x 2 sets
  • Energizing plates x 2 pcs


  • Clamping Beam
  • W-Axis
  • AVR 15KVA
  • Jumbo Feeder L-50A
  • Transformer 15KVA
  • Short Message Service (SMS)
  • Signal Tower
  • Remote Monitor System
  • Auto measurement system
  • Super Finish Circuit