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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
 FZoMYxcpDQJJTfqHgDcJj+xYZeeonAQ4K9rpaA2TcFV3ihrQdoy+JiTkJpTOqfZe
 G/HyUQBpu2YQyF1U8oxnpA==

<SEC-DOCUMENT>0000215310-03-000040.txt : 20030728
<SEC-HEADER>0000215310-03-000040.hdr.sgml : 20030728
<ACCEPTANCE-DATETIME>20030728102824
ACCESSION NUMBER:		0000215310-03-000040
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030513
FILED AS OF DATE:		20030728

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BMC INDUSTRIES INC/MN/
		CENTRAL INDEX KEY:			0000215310
		STANDARD INDUSTRIAL CLASSIFICATION:	COATING, ENGRAVING & ALLIED SERVICES [3470]
		IRS NUMBER:				410169210
		STATE OF INCORPORATION:			MN
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		ONE MERIDIAN CROSSING
		STREET 2:		SUITE 850
		CITY:			MINNEAPOLIS
		STATE:			MN
		ZIP:			55423
		BUSINESS PHONE:		6128516000

	MAIL ADDRESS:	
		STREET 1:		ONE MERIDIAN CROSSING
		STREET 2:		SUITE 850
		CITY:			MINNEAPOLIS
		STATE:			MN
		ZIP:			55423

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	BUCKBEE MEARS CO/MN
		DATE OF NAME CHANGE:	19830517

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			CASTRO JOHN
		CENTRAL INDEX KEY:			0000918783
		STATE OF INCORPORATION:			MN
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-08467
		FILM NUMBER:		03805051

	BUSINESS ADDRESS:	
		STREET 1:		MERRILL CORP
		STREET 2:		ONE MERRILL CIRCLE
		CITY:			ST PAUL
		STATE:			MN
		ZIP:			55108

	MAIL ADDRESS:	
		STREET 1:		MERRILL CORP
		STREET 2:		ONE MERRILL CIRCLE
		CITY:			ST PAUL
		STATE:			MN
		ZIP:			55108
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>

<ownershipDocument>

    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2003-05-13</periodOfReport>


    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000215310</issuerCik>
        <issuerName>BMC INDUSTRIES INC/MN/</issuerName>
        <issuerTradingSymbol>BMM</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000918783</rptOwnerCik>
            <rptOwnerName>CASTRO JOHN</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>MERRILL CORP</rptOwnerStreet1>
            <rptOwnerStreet2>ONE MERRILL CIRCLE</rptOwnerStreet2>
            <rptOwnerCity>ST PAUL</rptOwnerCity>
            <rptOwnerState>MN</rptOwnerState>
            <rptOwnerZipCode>55108</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>

        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option (Right to Buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>1.35</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2003-05-13</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>4000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>1.35</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2006-05-15</value>
            </exerciseDate>
            <expirationDate>
                <value>2008-05-13</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>4000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>20000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>

    </derivativeTable>



    <ownerSignature>
        <signatureName>/s/John W. Castro</signatureName>
        <signatureDate>2003-07-24</signatureDate>
    </ownerSignature>

</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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