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 January 30, 2009, as filed with the Securities and Exchange Commission on the date hereof (the “report”), we, Michael W. Sutherlin and Michael S. Olsen, 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: March 9, 2009		/s/Michael W. Sutherlin Michael W. Sutherlin President and Chief Executive Officer
		/s/Michael S. Olsen Michael S. Olsen Executive Vice President, Chief Financial Officer, Treasurer and Chief Accounting Officer (Principal Financial Officer)