<TABLE> <S> <C>
<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from the
consolidated financial statements of Rofin-Sinar Technologies, Inc. and
Subsidiaries for the nine-months ended June 30, 2000, and is qualified in its
entirety by reference to such consolidated financial statements.
</LEGEND>
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 9-MOS
<FISCAL-YEAR-END> SEP-30-2000
<PERIOD-END> JUN-30-2000
<CASH> 30520
<SECURITIES> 0
<RECEIVABLES> 56126
<ALLOWANCES> (1763)
<INVENTORY> 56559
<CURRENT-ASSETS> 150046
<PP&E> 45116
<DEPRECIATION> (23667)
<TOTAL-ASSETS> 225669
<CURRENT-LIABILITIES> 122507
<BONDS> 0
0
0
<COMMON> 115
<OTHER-SE> 90752
<TOTAL-LIABILITY-AND-EQUITY> 90867
<SALES> 113250
<TOTAL-REVENUES> 113250
<CGS> 71473
<TOTAL-COSTS> 71473
<OTHER-EXPENSES> 33725
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 1018
<INCOME-PRETAX> 8424
<INCOME-TAX> 4401
<INCOME-CONTINUING> 4023
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 4023
<EPS-BASIC> 0.35
<EPS-DILUTED> 0.35
</TABLE>