EXHIBIT 31.2
                                                        FORM 10-Q
                                 QUARTER ENDED SEPTEMBER 30, 2003



         CERTIFICATION OF VICE PRESIDENT-FINANCE AND SECRETARY
             PURSUANT TO SECTION 302 OF SARBANES-OXLEY ACT

I, Craig R. Mackus, certify that:

1.   I have reviewed this quarterly report on Form 10-Q of Bucyrus
     International, Inc.

2.   Based on my knowledge, this quarterly report does not contain any
     untrue statement of a material fact or omit to state a material fact
     necessary to make the statements made, in light of the circumstances
     under which such statements were made, not misleading with respect to
     the period covered by this quarterly report;

3.   Based on my knowledge, the financial statements, and other financial
     information included in this quarterly report, fairly present in all
     material respects the financial condition, results of operations and
     cash flows of the registrant as of, and for, the periods presented in
     this quarterly report;

4.   The registrant's other certifying officer and I are responsible for
     establishing and maintaining disclosure controls and procedures (as
     defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal
     control over financial report (as defined in Exchange Act Rules 13a-
     15(f) and 15d-15(f) for the registrant and we have:

     a)   Designed such disclosure controls and procedures, or caused
          such internal control procedures to be designed under our
          supervision, to ensure that material information relating to
          the registrant, including its consolidated subsidiaries, is
          made known to us by others within those entities, particularly
          during the period in which this quarterly report is being
          prepared;

     b)   Designed such internal control over financial reporting, or
          caused such internal control over financial reporting to be
          designed under our supervision, to provide reasonable assurance
          regarding the reliability of financial reporting and the
          preparation of financial statements for external purposes in
          accordance with generally accepted accounting principles;

     c)   Evaluated the effectiveness of the registrant's disclosure
          controls and procedures and presented in this report our
          conclusions about the effectiveness of the disclosure controls
          and procedures, as of the end of the period covered by this
          report based on such evaluation; and

     d)   Disclosed in this report any change in the registrant's
          internal control over financial reporting that occurred during
          the registrant's most recent fiscal quarter (the registrant's
          fourth fiscal quarter in the case of an annual report) that has
          materially affected, or is reasonably likely to materially
          affect, the registrant's internal control over financial
          reporting; and

5.   The registrant's other certifying officer and I have disclosed, based
     on our most recent evaluation of internal control over financial
     reporting, to the registrant's auditors and the audit committee of
     registrant's board of directors (or persons performing the equivalent
     function):

     a)   all significant deficiencies and material weaknesses in the
          design or operation of internal control over financial
          reporting which are reasonably likely to adversely affect the
          registrant's ability to record, process, summarize and report
          financial information; and

     b)   any fraud, whether or not material, that involves management or
          other employees who have a significant role in the registrant's
          internal control over financial reporting.


Date:     November 12, 2003


/s/C. R. Mackus
Craig R. Mackus
Vice President-Finance and Secretary