We’ve added 19 new Cincinnati milling machine and tool grinder operator’s instruction, service, and parts manuals.
We’ve been busy in our shop, but we’ve found some time to scan in and clean up over 1,400 pages of Cincinnati milling machine and tool grinder manuals for you. They have been uploaded and are now available in the Cincinnati section.
Cincinnati Milling Machine Co. 1926 Catalog Free PDF Download
Also we have a new Cincinnati Milling Machine Co. catalog that is now available in our Free PDF Catalogs download section. This Cincinnati catalog is 137 pages, and was printed in 1926. This is the oldest most comprehensive catalogs we’ve seen from the Cincinnati Milling Machine Co. A lot of care had to be taken into scanning this old catalog. Check it out, because we believe it was well worth it. It shows pictures of the old factory and laboratory facilities. It has all kinds of different mills and grinders that Cincinnati made at the time. This is great information to help you identify your old Cincinnati machinery, or to learn more about the evolution of their machinery.
We wrote an article on Cincinnati serial numbers. It can help you identify and date your Cincinnati machinery. It’s the most complete list we’ve collected, but if you have additional Cincinnati serial number information, please contact us. We’ll keep the list updated.
We have a whole lot more Cincinnati manuals that we haven’t had a chance to scan in yet. If you don’t see the Cincinnati manual you need listed below, feel free to contact us, and we may have it in our inventory. We literally have a few thousand more manuals in our inventory that we haven’t had a chance to get out yet. It takes a considerable amount of time to scan in and clean every page of these manuals to provide the best quality manual we can.
Here are the new Cincinnati Milling Machine Co. manuals that we recently added:
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The following information on Cincinnati Milacron milling and grinding machines serial numbers is from the second edition of Cincinnati’s serial number index from 1953 that was not released into circulation.
This is the most complete set of Cincinnati milling and grinding machine serial numbers I’ve ever seen, and this will continue to be a living and updated document as additional information is discovered. This includes significantly more serial numbers and information than the Serial Number Reference Book for Metalworking Machinery. I’ve included the original text from this document, and tried to organize it in a simpler format for online and mobile device viewing. If you have any additional information about Cincinnati serial numbers please comment below or contact us here.
We recently received a large amount of Cincinnati milling machine and grinding machine manuals, which we will be adding to our other Cincinnati operator and parts manuals here. We have some Cincinnati catalogs that you can download in pdf copies for free here, and we will be adding more to this selection over time as well.[vc_separator color=”#919191″ border_width=”2″ type=”normal” thickness=”2″ up=”” down=”” css=”.vc_custom_1463017658899{margin-bottom: 25px !important;border-bottom-width: 25px !important;padding-bottom: 25px !important;}”][vc_column_text css=”.vc_custom_1463031047192{margin-top: 50px !important;}”]
From the Cincinnati Serial Number Index:
THE index contained herein will identify any standard machine tool manufactured by The Cincinnati Milling Machine Co., since the beginning of 1933. By referring to the code on the next page the reader may also ascertain the year of order booking and lot number of the specific machine in question. Prior to 1933 several types of serial numbers were used. In general they involved the use of single prefix letters. Prior to 1912 a straight numerical sequence was used.
To identify machines not included in this index, or to learn any shipment date, write to the Order Department, Cincinnati Milling and Grinding Machines, Inc., Cincinnati 9, Ohio, Re. 2121, Teletype CI 27 7 , or direct Western Union Wire.
Second Edition, October, 1953
Copy No. 339
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Machine Model Information
The Wording—“THE OLD MARK” was placed in use during the year 1938 to establish a year model for each new design machine as indicated by the following example:
THE OLD MARK
123 456 7890
Year 1938—Model Machine “EA”
A machine newly designed in the year 1938 by Engineering Dept., and placed in production the same year or a later year—say 1939—would be Model “EA”—1938, or Model “ER”—1939.
Current model letters are also included for each machine listed.
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The Cincinnati Serial Number
Here is a typical Cincinnati Serial Number: 4A3U1K-110
This is the portion identified in the sections below. It is determined by the type, style, and size of the machine. Click on the section corresponding to the second letter. This code would be found in the “A Section”.[/vc_column_text][/vc_column][vc_column width=”1/3″][vc_column_text]
1K
This portion identifies the year of order booking according to the code below: Since the serial number is assigned at the order booking, the year of completion or of shipment may not always be the same as that indicated by this code. After 1953 all year codes start with number 5.[/vc_column_text][/vc_column][vc_column width=”1/3″][vc_column_text]
110
This is the 110th No. 3 Universal High Speed Dial Type Milling Machine (4A3U) order booked during “K” year (1941). It may have been completed one or even two years later. If there had been a major design change during the first year,“1K“would have changed to “2K”, and this sequence number would have started over.[/vc_column_text][/vc_column][/vc_row][vc_row type=”container” padding_top=”” padding_bottom=””][vc_column width=”1/2″][vc_column_text]
[/vc_column_text][/vc_column][/vc_row][vc_row type=”container” padding_top=”” padding_bottom=””][vc_column][vc_column_text]In 1973 the system was again changed to the following: the last two digits preceding the dash indicate the year of manufacture and the letter code no longer applies. Example: 49U78-000 Built 1978[/vc_column_text][vc_separator color=”#919191″ border_width=”2″ type=”normal” thickness=”2″ up=”” down=”” css=”.vc_custom_1463017658899{margin-bottom: 25px !important;border-bottom-width: 25px !important;padding-bottom: 25px !important;}”][vc_column_text css=”.vc_custom_1463028962315{margin-top: 50px !important;}”]
Special Machines
Special CINCINNATI Machines which do not conform closely enough to any existing design are given the factory’s manufacturing order numbers for their serial numbers. These are usually six digits in length preceded by the year of order entry and a letter, and followed by a lot number, thus:
41B 426999-2
All that can be determined from this type of serial number is that here is a special Broaching machine first authorized for building in 1941, and that this is the second machine of the type built—probably in a later year. The authorization date (41) is no index to shipping date, which cannot be determined from the serial number. The letter “M” indicates milling or cutter sharpening, “G” indicates grinding and “B” indicates broaching.[/vc_column_text][/vc_column][/vc_row][vc_row type=”container” padding_top=”” padding_bottom=””][vc_column][vc_separator color=”#919191″ border_width=”2″ type=”normal” thickness=”2″ up=”” down=”” css=”.vc_custom_1463017658899{margin-bottom: 25px !important;border-bottom-width: 25px !important;padding-bottom: 25px !important;}”][vc_column_text css=”.vc_custom_1463032497750{margin-top: 50px !important;}”]
Select section below corresponding to the 2nd letter in your serial number
to identify the type of Cincinnati machine.
*Machines were no longer being manufactured in 1953
12”x 24” Universal Self Contained Grinding Machine—Model EA
*1U3D
12″x 36″ Universal Self Contained Grinding Machine—Model EA
*1U4D
14″x 36″ Universal Self Contained Grinding Machine—Model EA
*1U5D
16″x 36″ Universal Self Contained Grinding Machine—Model EA
*1U3E
12″x 48″ Universal Self Contained Grinding Machine—Model EA
*1U4E
14″x 48″ Universal Self Contained Grinding Machine—Model EA
*1U5E
16″x 48″ Universal Self Contained Grinding Machine—Model EA
*1U3F
12″x 72″ Universal Self Contained Grinding Machine—Model EA
*1U4F
14″x 72″ Universal Self Contained Grinding Machine—Model EA
*1U5F
16″x 72″ Universal Self Contained Grinding Machine—Model EA
2U3B
12″x 24″ Universal Hydraulic Grinding Machine—Model ER
2U3D
12″x 36″ Universal Hydraulic Grinding Machine—Model ER
2U3E
12″x 48″ Universal Hydraulic Grinding Machine—Model ER
2U3F
12″x 72″ Universal Hydraulic Grinding Machine—Model ER
3U4B
14″x 24″ Universal Hydraulic Grinding Machine—Model ER
3U5B
16″x 24″ Universal Hydraulic Grinding Machine—Model ER
3U6B
18″x 24″ Universal Hydraulic Grinding Machine—Model ER
3U4D
14″x 36″ Universal Hydraulic Grinding Machine—M0del ER
3U5D
16″x 36″ Universal Hydraulic Grinding Machine—Model ER
3U6D
18″x 36″ Universal Hydraulic Grinding Machine—Model ER
3U4E
14″x 48″ Universal Hydraulic Grinding Machine—Model ER
3U5E
16″x 48″ Universal Hydraulic Grinding Machine—Model ER
3U6E
18″x 48″ Universal Hydraulic Grinding Machine—Model ER
3U4F
14″x 72″ Universal Hydraulic Grinding Machine—Model ER
3U5F
16″x 72″ Universal Hydraulic Grinding Machine—Model ER
3U6F
18″x 7 2″ Universal Hydraulic Grinding Machine—Model ER
4U2B
10″x 24″ Universal Hydraulic Grinding Machine—Model ER
[/vc_column_text][/vc_tta_section][/vc_tta_accordion][vc_row_inner][vc_column_inner][vc_column_text]If you have any additional information, feedback, or edits, please comment below or contact us, and share this with your friends or anyone else you know that may have a Cincinnati machine. We really want to hear from you. Also, we would love to see pictures of your Cincinnati machines to display them here.[/vc_column_text][/vc_column_inner][vc_column_inner][addtoany][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row]