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32. 1997 Economic Census
D Withheld to avoid disclosing data for individual companies. pt. Part NA Not available.
1 Data for "All lathes (turning machines)" and "All milling machines," valued at under $3,025 each are included in total "Metal cutting type" for 1995 through 1997.
2 For 1990 data for "Boring machines" were combined with "Drilling machines" to avoid disclosing individual company data.
3 For 1991-1999 product code 35415, "Lathes," excludes the value for product code 35415 09, All Lathes valued under $3,025 each.
4 For 1991-1999 product code 35416, "Milling machines," excludes the value for product code 35416 09, "All milling machines valued under $3,025 each."
5 Multi-function numerically controlled machines.
6 Excludes those designed primarily for home workshops, labs, etc.
7 For 1991-1999, data for "Forging machines" have been combined with "Other metal forming machines" to avoid disclosing individual company
Source: U.S. Census Bureau, through 1992, Current Industrial Reports, MQ35W, annual; and Manufacturing Profiles, Series MP, annual; and Internet
* METALWORKING MACHINERY
To provide detailed data on quantity and value of shipments and value of unfilled orders of metalworking machine tools. The United States Code, Titles 13 and 50, authorizes this survey and provides for mandatory quarterly and annual responses. The National Machine Tool Builders Association and the Bureau of Export Administration partially fund this survey.
All companies that manufacture new industrial metal cutting or forming machinery (most but not all are in SIC 3541 and 3542). In 1993, shipments of metalworking machinery totaled $3.2 billion.
Product data are collected for over 90 types of machine tools. Data at the 7- digit SIC level include quantity and value of shipments, value of unfilled orders, export shipments, and identification of products that incorporate numerical controls.
Quarterly and annually; reported data are for activities taking place during the applicable reporting period. Data on metalworking machinery have been collected since 1942.
A mail-out/mail-back survey of all 419 known manufacturers; annual reports are required from companies that do not report quarterly. Companies are identified from the latest census of manufactures and industry sources. Firms are contacted using form MQ35W. Quarterly data may be revised if firms later provide corrected data or return the annual report. Annual figures are compared with data collected from the annual survey of manufactures to reconcile any differences between the two series.
Metal cutting type machine tools. These are defined as new,industrial type,power-driven,complete machine tools,not supported in the hands of an operator when in use.They are used for removing metal in the form of chips,turnings,and borings.Also included are honing machines,lapping machines,grinders,and machines which cut using electrical techniques.Excluded are machine tools designed primarily for home workshops, laboratories,garages,and services shops.These are small, low-priced machine tools of light construction.Also excluded are rolling mill machinery,power-driven hand tools,wood working machinery,and rebuilt machinery.
Metal forming type machine tools.These are defined as new,industrial type,power-driven,complete machine tools,not supported in the hands of an operator when in use.They are used to press,forge,emboss,hammer, extrude,blank,spin,shear,or bend metal into shape.
Numerically Controlled Machines by Type: Positioning. Machines equipped with positioning numerical control systems activated by direct data input (DNC);e.g., punched tape,punched cards,magnetic tape,cassette,or manual data input (MDI).Included in this group are all machines that have been equipped with control systems i which point-to-point positioning and cutting or forming (regardless of the number of movement "axes" or auxiliary functions)are controlled automatically via numerical pro- grams inserted into the systems.If a machine has been equipped with a control system that permits positioning and continuous path operations,it is classified as continu- ous path.
Continuous path or computer numerical control. Machine equipped with continuous path numerical program control systems activated by direct data input (CNC);e.g., punched tape,punched cards,magnetic tape,cassette,or manual data input (MDI).Included in this group are all machines equipped with control systems i which,in addi- tion to point-to-point positioning,the path of cutting is automatically controlled by means of numerical programs inserted into the systems.If a machine has been equipped with a control system that permits positioning and con- tinuous path operations,it is classified as continuous path.
Digital readout systems including dial or plugboard. Machines equipped with digital readout systems or dial or plugboard type of prerecorded motion program control systems.Included in this group are all machines equipped with control systems i which positioning or continuous path are automatically commanded by numerical pro- grams fed into the system,by a operator,through dials, plugs,switches,or any other numerical method.
These tables are based on figures supplied by the United States Census Bureau, U.S. Department of Commerce and are subject to revision by the Census Bureau.
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