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PR Hoffman

94T

insert carrier3"PR Hoffman 94T family
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PR Hoffman94T
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What is it?

The sources identify the PR Hoffman 94T as an insert carrier type, shown as "94T PR-1 - 94T Cominco Mod." in PR Hoffman’s insert and lapping carrier information for double-sided planetary lapping and polishing applications. The pages also state that PR Hoffman insert carriers can be manufactured for 3 inch through 12 inch wafers.

What can it run?

Process applications and technology nodes documented for this tool.

  • Double-sided planetary lapping
  • Double-sided planetary polishing

What do the numbers mean?

Wafer handling4

Carrier designation
94T PR-1 - 94T Cominco Mod.[1]
Accurate?
Wafer sizes stated
3 inch (76 mm), 4 inch (100 mm), 5 inch (125 mm), 6 inch (150 mm), 8 inch (200 mm), 12 inch (300 mm)[1]
Accurate?
Maximum carrier diameter stated
up to 33 inches[1]
Accurate?
Maximum Carrier Diameter
33 inches (insert carrier)[1]
Accurate?

Configuration & options4

Machine/application context
For double-sided planetary lapping and polishing machines[1]
Accurate?
Number of Teeth
94[1]
Accurate?
Workhole Diameter
76 mm (3 inch)[1]
Accurate?
Manufactured By
PR Hoffman Machine Products, Inc.[1]
Accurate?

Vintage & configurations

Documented models & variants

DesignationGenerationVintageChangesSource
94T PR-1———web.archive.org[1]
94T Cominco Mod.———web.archive.org[1]
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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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Not publicly documented

The following facts about the 94T 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 94T are on record.

    Answerable by: OEM historical records or a trade-press announcement

  • The control-system platform and OS era of the 94T 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 94T are on record.

    Answerable by: a field service engineer, process engineer, or maintenance technician

  • The process node or technology generation of the 94T is not on record.

    Answerable by: an OEM datasheet or a fab qualification report

  • No publicly documented compatible parts, consumables, or accessories for the 94T are on record.

    Answerable by: an OEM parts catalog or a service engineer

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. [1]web.archive.org — web.archive.orgweb.archive.org
  2. [2]LappingCarrier.com - PR HOFFMAN MACHINE PRODUCTS, Inc. — web.archive.orgweb.archive.org
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Last updated Aug 13, 2026.