Joy Global 10-Q 2014 Q3 Quarterly report

EXHIBIT 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350

In connection with the Quarterly Report of Joy Global Inc. (the “registrant”) on Form 10-Q for the quarter ended August 1, 2014, as filed with the Securities and Exchange Commission on the date hereof (the “report”), we, Edward L. Doheny II and James M. Sullivan, Chief Executive Officer and Chief Financial Officer, respectively, of the registrant, certify, pursuant to 18 U.S.C. § 1350, that to our knowledge:

(1) The 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 report fairly presents, in all material respects, the financial condition and results of operations of the registrant.

Date: September 5, 2014

/s/ Edward L. Doheny II

Edward L. Doheny II

President and Chief Executive Officer

/s/ James M. Sullivan

James M. Sullivan

Executive Vice President and Chief Financial Officer

(Principal Financial Officer)