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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 O6lfN42mWAzZCtjpj4q5dIph+IdOCedH7F8cqE9jF8lPyCDFjIXzrmJUCqEwJX0K
 7t8Dx/kiDosn40l9tE/oQQ==

<SEC-DOCUMENT>0000716823-03-000031.txt : 20030701
<SEC-HEADER>0000716823-03-000031.hdr.sgml : 20030701
<ACCEPTANCE-DATETIME>20030701124308
ACCESSION NUMBER:		0000716823-03-000031
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030630
FILED AS OF DATE:		20030701

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			PERRELLA JAMES E
		CENTRAL INDEX KEY:			0001214330

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-08485
		FILM NUMBER:		03767147

	BUSINESS ADDRESS:	
		STREET 1:		2135 WEST MAPLE RD.
		CITY:			TROY
		STATE:			MI
		ZIP:			48084

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MILACRON INC
		CENTRAL INDEX KEY:			0000716823
		STANDARD INDUSTRIAL CLASSIFICATION:	SPECIAL INDUSTRY MACHINERY, NEC [3559]
		IRS NUMBER:				311062125
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1228

	BUSINESS ADDRESS:	
		STREET 1:		2090 FLORENCE AVENUE
		STREET 2:		PO BOX 63716
		CITY:			CINCINNATI
		STATE:			OH
		ZIP:			45206
		BUSINESS PHONE:		5134875000

	MAIL ADDRESS:	
		STREET 1:		2090 FLORENCE AVENUE
		STREET 2:		P.O. BOX 63716
		CITY:			CINCINNATI
		STATE:			OH
		ZIP:			45206

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CINCINNATI MILACRON INC /DE/
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CINCINNATI MILACRON HOLDINGS INC
		DATE OF NAME CHANGE:	19830503

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CINCINNATI MILLING MACHINE CO
		DATE OF NAME CHANGE:	19600201
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>
    <schemaVersion>X0101</schemaVersion>

    <documentType>4</documentType><periodOfReport>2003-06-30</periodOfReport>
    <issuer>
        <issuerCik>0000716823</issuerCik>
        <issuerName>MILACRON INC</issuerName>
        <issuerTradingSymbol>MZ</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId>
            <rptOwnerCik>0001214330</rptOwnerCik>
            <rptOwnerName>PERRELLA JAMES E</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>  </rptOwnerStreet1>
            <rptOwnerStreet2>  </rptOwnerStreet2>
            <rptOwnerCity>  </rptOwnerCity>
            <rptOwnerState>  </rptOwnerState>
            <rptOwnerZipCode>  </rptOwnerZipCode>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
<isDirector>1</isDirector><isOfficer>0</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther></reportingOwnerRelationship></reportingOwner><derivativeSecurity><securityTitle><value>Phantom Stock Units</value><footnoteId id="F1"/></securityTitle><conversionOrExercisePrice><value>4.995</value></conversionOrExercisePrice><transactionDate><value>2003-06-30</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>A</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>4254.25</value></transactionShares><transactionValue><value>0</value></transactionValue><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><value>1988-08-08</value><footnoteId id="F2"/></exerciseDate><expirationDate><value>1988-08-08</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTi
tle><underlyingSecurityShares><value>4254.25</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>34671.53</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value/></natureOfOwnership></ownershipNature></derivativeSecurity><footnotes><footnote id="F1">The reporting person also directly owns stock options to purchase 17,000 shares of MZ common stock, and directly beneficially owns 4,500 shares of MZ common stock and 1,500 restricted shares of MZ common stock.</footnote><footnote id="F2">Acquisition of phantom stock units under the company's deferred compensation plan for non-employee directors.  Benefits are payable upon the earlier of termination of services as a director or death.</footnote></footnotes><ownerSignature><signatureName>Walter S. Wood, Attorney - in - Fact</signatureName><signatureDate>2003-07-01</signatureD
ate></ownerSignature></ownershipDocument>

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