UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): May 19, 2011

Bucyrus International, Inc.

(Exact name of registrant as specified in its charter)

Delaware

001-00871

39-0188050

(State or other jurisdiction

of incorporation)

(Commission

File Number)

(IRS Employer

Identification No.)

P.O. Box 500, 1100 Milwaukee Avenue,

South Milwaukee, Wisconsin 53172

(Address of principal executive offices, including ZIP code)

(414) 768-4000

(Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

¨	Written communications pursuant to Rule 425 under the Securities Act (17 C.F.R. §230.425)

¨	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 C.F.R. §240.14a-12)

¨	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 C.F.R. §240.14d-2(b))

¨	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 C.F.R. §13e-4(c))

Item 7.01.

Regulation FD Disclosure.

On May 19, 2011, Bucyrus International, Inc. issued a press release announcing the Company has issued its 2010 Sustainability Report. A copy of the press release is furnished as Exhibit 99 to this Current Report on Form 8-K.

Item 9.01.

Financial Statements and Exhibits.

(d) Exhibits. The following exhibit is being furnished herewith:


Exhibit Number		Description

99.1		Bucyrus International, Inc. press release dated May 19, 2011.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.


	BUCYRUS INTERNATIONAL, INC.

Dated: May 19, 2011	By:	/s/ Craig R. Mackus
	Name:	Craig R. Mackus
	Title:	Chief Financial Officer and Secretary

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BUCYRUS INTERNATIONAL INC 8-K