Exhibit 32.1

CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Gardner Denver, Inc. (the “Company”) on Form 10-Q for the period ended March 31, 2006, as filed with the Securities and Exchange Commission on the date hereof (the “Periodic Report”), I, Ross J. Centanni, Chairman of the Board, President and Chief Executive Officer of the Company, certify, to the best of my knowledge, pursuant to Rule 13a-14(b) of the Securities Exchange Act of 1934, as amended, and 18 U.S.C. Section 1350, that:

(1) The Periodic Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

(2) The information contained in the Periodic Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Ross J. Centanni

Ross J. Centanni

Chairman, President and
Chief Executive Officer
Gardner Denver, Inc.

May 9, 2006

     A signed original of this written statement required by Section 906 has been provided to Gardner Denver and will be retained by Gardner Denver and furnished to the Securities and Exchange Commission or its staff upon request.