Blanchard
22 AD 42
What it is
The model 22AD-42 (also designated 22 AD 42) is designed for precision grinding of parts up to 48 inches in diameter and is capable of holding high tolerances for flatness and parallelism.[2]
The machine consists of a vertical grinding spindle, with either a grinding wheel or grinding segments, and a rotating magnetic chuck.[2]
How it works
New models of the 22AD-42 have two servo-controlled axes: the carriage (X-axis) and the spindle head (Z-axis). Each axis is powered by a servo motor with encoder feedback for accurate positioning.[2]
The grinding spindle and magnetic chuck are direct-drive. The grinding spindle has a speed of 720 RPM, and the chuck rotation speeds are infinitely variable from 6 to 24 RPM.[2]
The machine is equipped with a Fanuc 35iB control and includes a power-operated wheel dresser, automatic lubrication system, and a full stainless steel enclosure with automatic door.[2]
Where it fits in the process flow
General reference — not yet source-verifiedBlanchard surface grinders are typically used in a general manufacturing workflow after rough machining operations to achieve final flatness and parallelism on workpiece surfaces.
The abrasive process removes stock from materials through the combination of a rotating vertical spindle and a rotating magnetic chuck that holds the workpiece.
Applications
The Blanchard 22AD-42 Surface Grinder is able to quickly and effectively remove stock from a variety of materials including steel, ceramic, silicone, and cast iron.[2]
The machine is used across numerous industries to provide accurate results for small and medium-sized workpieces requiring high flatness and parallelism tolerances.[2]
Why won't it start?
Documented failure modes, common issues, and field considerations.
- Chuck rotation needs correction
- 1 manual control button missing
- Missing air regulator
What do the numbers mean?
Power & electrical3
Wafer handling1
- Chuck rotation needs correction[1]
Control & software1
- 1 manual control button missing[1]
Configuration & options2
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
No research found yet — worked with this tool? Share what you know.
Frequently asked questions
What are the grinding wheel and magnetic chuck diameters?
The grinding wheel diameter is 22 inches, and the magnetic chuck diameter is 42 inches.[2]
What control system does the 22AD-42 use?
The machine uses a Fanuc 35iB control.[2]
What is the maximum weight capacity of the magnetic chuck?
The maximum weight capacity is 3,000 lbs.[2]
Not publicly documented
The following facts about the 22 AD 42 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 22 AD 42 are on record.
Answerable by: OEM historical records or a trade-press announcement
No publicly documented variants, configuration options, or revision breakpoints of the 22 AD 42 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 22 AD 42 are not on record.
Answerable by: an engineer who operated it or OEM installation records
The process node or technology generation of the 22 AD 42 is not on record.
Answerable by: an OEM datasheet or a fab qualification report
No publicly documented compatible parts, consumables, or accessories for the 22 AD 42 are on record.
Answerable by: an OEM parts catalog or a service engineer
Sources & citations
Sources (3)Every fact above is drawn from these public sources
- [1]Inventory photo
- [2]Blanchard 22AD-42 Surface Grinder by Bourn & Koch, Inc. — bourn-koch.combourn-koch.com
- [3]22 AD 42 — Blanchard | Specs, Sourcing & Service | Waferpedia — waferpedia.comwaferpedia.com
Last updated Sep 30, 2026.
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