Strasbaugh 7AA Wafer Backgrinder
The Strasbaugh 7AA backgrinder is used to grind substrates up to 150mm. It was one of the first infeed grinders and is a very good grinder. Strasbaugh still manufactures a model called the 7AA II, which features updated controls. It has a small footprint, is easy to operate, and maintain.
Some of the parts and/or assemblies I have developed new replacements for, such as the work chuck, which is shown on the machine accessories page. If you are having issues such as:
Edge Chipping
TTV Issues
Thinness Issues
Software Issues
Mechanical or Electrical Issues
Strasbaugh 7AA Z-Axis Lead Screw 119028
Original z-axis leadscrew assembly. Includes bearings, bearing nut, and leadscrew. The leadscrew threads are ground.
Strasbaugh 7AA Z-Axis Roller Screw 300079C
Replaced the original z-axis leadscrew with a roller screw.
Strasbaugh 7AA X-Axis Motor 225950
7AA X-axis servo motor used to move the work chuck in and out of the grind chamber. This item is sold with and without the mounting brackets.
Strasbaugh 7Z/7AB Wafer Edge Profiler
The Strasbaugh 7Z and 7AB are wafer edge profilers and can be used for other types of substrates. The 7Z is the 150mm model, and the 7AB is the 200mm model. Strasbaugh currently sells the 7AB-II, which has updated controls.
Both machines look similar and have similar mechanics. The 7AB has different elevators and a centering station. It also has a notch grind option. If you need service and support on the Strasbaugh 7Z or 7AB, please call.
Strasbaugh 7AB Notch Assembly
Assembly adds the following to the machine:
- Centering Assembly
- Notch Grind Spindle and Notch Centering Pin