-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 L+aOH22dCi3KJZt9FYIINw/2NcBN4u2LegsbUP3xz4qfWGE5Fcrsymkd5VKZhYWV
 9cYbGTWnKfZvGhs0gZihBg==

<SEC-DOCUMENT>0001255034-05-000023.txt : 20050611
<SEC-HEADER>0001255034-05-000023.hdr.sgml : 20050611
<ACCEPTANCE-DATETIME>20050527130223
ACCESSION NUMBER:		0001255034-05-000023
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20050525
FILED AS OF DATE:		20050527
DATE AS OF CHANGE:		20050527

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			LEPOFSKY ROBERT
		CENTRAL INDEX KEY:			0001182721

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-06866
		FILM NUMBER:		05862711

	MAIL ADDRESS:	
		STREET 1:		NINE HAMPSHIRE STREET
		CITY:			MANSFIELD
		STATE:			MA
		ZIP:			02048-9171

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			HELIX TECHNOLOGY CORP
		CENTRAL INDEX KEY:			0000046709
		STANDARD INDUSTRIAL CLASSIFICATION:	SPECIAL INDUSTRY MACHINERY, NEC [3559]
		IRS NUMBER:				042423640
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		NINE HAMPSHIRE STREET
		CITY:			MANSFIELD
		STATE:			MA
		ZIP:			02048
		BUSINESS PHONE:		5083375111

	MAIL ADDRESS:	
		STREET 1:		NINE HAMPSHIRE STREET
		CITY:			MANSFIELD
		STATE:			MA
		ZIP:			02048

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CRYOGENIC TECHNOLOGY INC
		DATE OF NAME CHANGE:	19760707
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgardoc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2005-05-25</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000046709</issuerCik>
        <issuerName>HELIX TECHNOLOGY CORP</issuerName>
        <issuerTradingSymbol>HELX</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001182721</rptOwnerCik>
            <rptOwnerName>LEPOFSKY ROBERT</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>NINE HAMPSHIRE STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>MANSFIELD</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02048</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2005-05-25</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>2000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>253066</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1945</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>by 401(k) Plan</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>40000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>by Trust</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Shares granted pursuant to Helix Technology Corporation's (the &quot;Company&quot;) Directors' Compensation Program (the &quot;Program&quot;).  Pursuant to the terms of the Program, the 2,000 shares will vest in four equal installments of 500 shares each on each of June 30, 2005, September 30, 2005, December 31, 2005, and March 31, 2006 (each, a &quot;Vesting Date&quot;), subject to the requirement that the Reporting Person is a director of the Company on such Vesting Date.</footnote>
        <footnote id="F2">The reporting person disclaims beneficial ownership of these shares.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>By: Beverly L. Couturier, Attorney-in-Fact  For: Robert J. Lepofsky</signatureName>
        <signatureDate>2005-05-25</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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