Automatic 8" & 12" Twin - 7900 Duo

Automatic 8" & 12" Twin - 7900 Duo

Cope with your Production Challenges


As part of the growing market of the LED segment and the ongoing demand to lower the cost of production per unit (CoO), ADT has responded with a dual spindle system model 7900 Duo that double the productivity while maintaining the same current production floor space.


The 7900 Duo system provides a perfect solution for applications that require a long cut cycle time such as image sensors and saw devices.


Further to the automatic vision and easy New User Interface (NUI), ADT is offering a unique feature for processing and programming of broken wafers.


7900 Series Advantages:


  • Two facing spindles enable simultaneous dicing
  • Low vibration platform
  • Fast automatic alignment and cut positioning increase throughput
  • Small footprint reduces cost of ownership
  • Automatic Kerf inspection increase yield
  • Automatic Y offset correction ensures maximum precision
  • Tape surface detection ensures consistent cut quality
  • Touch screen user interface


System Specifications


Work piece size:
                          7900 Duo up to 8" x 8"
                          7920 Duo up to 10" x 10"
                          7930 Duo up to 12" x 10" or 12" Dia.             

Blade size: 2"- 3" 

Spindle: Two facing spindle, 60 krpm, 1.8 KW or 2.2 KW shaft lock spindle (optional)


Y1/Y2 Axis


Drive: Ball bearing lead screw with stepper motor 

Control: linear encoder 

Resolution: 0.1 µm 

Cumulative accuracy: 1.5 µm 

Indexing accuracy: 1.0 µm 

Cutting range:  7900 Duo 8" 
                         7920 Duo 10" 
                         7930 Duo 12" 


X Axis


Drive: Ball bearing lead screw 

Air bearing slide 

Feed rate: up to 600 mm/sec 

Cutting range: 410mm


Z1/ Z2 Axis


Drive: Ball bearing lead screw 

Resolution: 0.2 µm 

Accuracy: 2.0 µm 

Repeatability: 1.0 µm 

Stroke: up to 40mm


Ø  Axis


Drive: closed-loop, direct-drive 

Accuracy: 4 arc-sec 

Repeatability: 4 arc-sec 

Stroke: 350 deg.


Vision System


Digital camera, Fire wire link 

High bright LED illumination (vertical & oblique)




Electrical: 200-240 VAC 50/60 Hz, Single phase 

Air consumption: 260 L/min @ 5.5 bar 

Cutting water (per spindle): 3 L/min 

Spindle water (per spindle): 1.1 l/min


Dimensions (WxDxH):


875 x 975 x 1450 mm 

Weight: 900 kg




Automatic alignment 

Automatic Kerf inspection 

Automatic Y offset correction