Accretech
W-GM-4200 Wafer Edge
How it works
For peripheral grinding, the W-GM-4200 uses a built-in inverter motor to drive the wheel. The periphery grinding wheel rotates at 2500 m/min (with a 200 mm wheel at 4000 rpm). For notch grinding, an air bearing system drives the spindle over a rotational frequency range of 70,000 to 94,000 rpm. The system is configured with left and right grinding units. The machine requires a main air source at 0.56 MPa, a spindle air source at 0.56 MPa, grinding and cleaning water at 15 L/min and 0.3 MPa (recommended 18 °C), and a mist exhaust of 5 m³/min.[1]
What do the numbers mean?
Power & electrical1
Vacuum & pumping1
Wafer handling4
Configuration & options12
- Rotational Frequency of Spindle for Notch: 70000-94000rpm[1]
What does it need to run?
Site utility requirements, footprint, and infrastructure needed to install and operate this tool. Sourced from public records.
Where are the manuals?
Generated from public-source data on file. Enter your email to access — nothing is published; details are routed privately.
Not publicly documented
Field notes
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Frequently asked questions
Not publicly documented
The following facts about the W-GM-4200 Wafer Edge are absent from this record as of this revision. First-hand knowledge or a citation closes a gap; every submission is reviewed before publication.
No publicly documented production dates or lifecycle milestones (introduction, end of production, EOL) for the W-GM-4200 Wafer Edge are on record.
Answerable by: OEM historical records or a trade-press announcement
No publicly documented variants, configuration options, or revision breakpoints of the W-GM-4200 Wafer Edge are on record.
Answerable by: an OEM product catalog or an engineer who ordered or specified the tool
The control-system platform and OS era of the W-GM-4200 Wafer Edge are not on record.
Answerable by: an engineer who operated it or OEM installation records
No publicly documented failure modes or field errata for the W-GM-4200 Wafer Edge are on record.
Answerable by: a field service engineer, process engineer, or maintenance technician
The process node or technology generation of the W-GM-4200 Wafer Edge is not on record.
Answerable by: an OEM datasheet or a fab qualification report
No research found yet — worked with this tool? Share what you know.
Sources & citations
Sources (2)Every fact above is drawn from these public sources
- [1]Inventory photo
- [2]Equipment inventory listing
Last updated Aug 14, 2026.
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