<PAGE>

                      SECURITIES AND EXCHANGE COMMISSION
                           Washington, D.C. 20549
 
                                   FORM 10-Q
 
    (Mark One)
 
/X/ QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE 
    ACT OF 1934
 
    For the quarterly period ended September 28, 1997
 
/ / TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE
    ACT OF 1934
 
    For the transition period from _____ to _____
 
    Commission File Number: O-13715
 
                              VITRONICS CORPORATION
               (Exact name of registrant as specified in its charter)
 
COMMONWEALTH OF MASSACHUSETTS                          04-2726873
(State or other jurisdiction of                     (I.R.S. Employer
incorporation or   organization)                   Identification No.)

1 Forbes Road, Newmarket, NH                             03857
(Address of principal executive offices)              (Zip Code)
 
    Registrant's telephone number, including area code (603) 659-6550
 
                                      NONE
              (Former name, former address and former fiscal year,
                         if changed since last report)
 
    Indicate by check mark whether the registrant (1) has filed all reports
required to be filed by Section 13 or 15 (d) of the Securities Exchange Act of
1934 during the preceding 12 months (or for such shorter period that the
registrant was required to file such reports), and (2) has been subject to such
filing requirements for the past 90 days.
 
                                    YES  X   NO 
                                        ---     ---

    Number of shares outstanding of each of the registrant's classes of common
stock as of September 28, 1997:
 
         Common Stock, $.01 par value:          9,856,572 shares
 



<PAGE>
                             VITRONICS CORPORATION
 
                                     INDEX
 
                                                           PAGE
                                                          -----
Part I--Financial Information:

Item 1--Financial Statements:

  Condensed Consolidated Balance Sheets-- September 28,
   1997 (unaudited) and December 31, 1996................... 3

  Condensed Consolidated Statements of Operations
   (unaudited)--Three Months and Nine Months Ended
   September 28, 1997 and September 28, 1996................ 4

  Condensed Consolidated Statements of Cash Flows
   (unaudited)--Nine Months Ended September 28, 1997 and
   September 28, 1996....................................... 5
 
  Notes to Condensed Consolidated Financial Statements       
   (unaudited).............................................. 6
 
  Calculation of Net Income Per Share--Three Months Ended
   September 28, 1997 and September 28, 1996................ 7
 
  Calculation of Net Income Per Share--Nine Months Ended     
   September 28, 1997 and September 30, 1996................ 8
 
Item 2--Management's Discussion and Analysis of
   Financial Condition and Results of Operations............ 9


Part II--Other Information

  Items 1 through 6........................................ 11
 
  Signatures............................................... 13
 
                                       2


<PAGE>
                    VITRONICS CORPORATION AND SUBSIDIARY
                   CONDENSED CONSOLIDATED BALANCE SHEETS
                             (000's omitted)
 
<TABLE>
<CAPTION>
                                                                                      SEPTEMBER 28,  DECEMBER 31,
                                                                                          1997           1996
                                                                                       (UNAUDITED)        (*)
                                                                                      -------------  -------------
<S>                                                                                   <C>            <C>
ASSETS
Current assets:
  Cash and cash equivalents.........................................................    $   2,005      $   2,125
  Accounts receivable, net..........................................................        4,814          3,177
  Inventories.......................................................................        2,966          2,989
  Deferred taxes....................................................................          525            553
  Other current assets..............................................................          146            225
                                                                                           ------         ------
     Total current assets...........................................................       10,456          9,069
 
Property and equipment, net.........................................................          353            437
 Deferred taxes.....................................................................          183            183
 Other assets.......................................................................           98             74
                                                                                           ------         ------
                                                                                         $ 11,090        $ 9,763
                                                                                           ------         ------
                                                                                           ------         ------
 
LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
  Accounts payable................................................................       $  1,848        $ 1,341
  Income taxes payable............................................................            516            176
  Other current liabilities.......................................................          1,765          1,753
  Current maturities of long-term liabilities.....................................             71            214
                                                                                           ------         ------
    Total current liabilities.......................................................        4,200          3,484
 
Long-term liabilities, net of current maturities....................................           57            104
 
COMMITMENTS AND CONTINGENCIES

Stockholders' Equity:
  Common Stock, $.01 par value......................................................           99             99
  Additional paid-in capital........................................................        6,145          6,145
  Foreign currency translation......................................................         (162)           (81)
  Retained earnings (deficit).......................................................          751             12
                                                                                           ------         ------
                                                                                            6,833          6,175
                                                                                           ------         ------
                                                                                         $ 11,090        $ 9,763
                                                                                           ------         ------
                                                                                           ------         ------
</TABLE>
 
* Condensed from audited financial statements
 
  The accompanying notes are an integral part of these condensed financial
statements.

                                       3


<PAGE>
                      VITRONICS CORPORATION AND SUBSIDIARY
 
                CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
                                  (Unaudited)
                   (000's omitted except per share amounts)
 
<TABLE>
<CAPTION>
                                                            THREE MONTHS ENDED            NINE MONTHS ENDED
                                                       ----------------------------  ----------------------------
                                                       SEPTEMBER 28,  SEPTEMBER 28,  SEPTEMBER 28,  SEPTEMBER 28,
                                                           1997           1996           1997           1996
                                                       -------------  -------------  -------------  -------------
<S>                                                    <C>            <C>            <C>            <C>
Net sales............................................    $   6,380      $   5,814      $  17,083      $  17,880
Cost of goods sold...................................        3,719          3,393         10,298         10,829
                                                            ------         ------    -------------  -------------
  Gross profit.......................................        2,661          2,421          6,785          7,051
 
Selling, general and administrative expenses.........        1,626          1,566          4,428          4,509
Research and development costs.......................          348            472          1,016          1,276
Patent Litigation....................................       --                  9             65             36
                                                            ------         ------    -------------  -------------
                                                             1,974          2,047          5,509          5,821
                                                            ------         ------    -------------  -------------
 
Income from operations...............................          687            374          1,276          1,230
 
Non-operating expense--net...........................           13             23             44             16
                                                            ------         ------    -------------  -------------
Income before taxes..................................          674            351          1,232          1,214
 
Income taxes.........................................          300            141            493            486
                                                            ------         ------    -------------  -------------
 
Net income...........................................    $     374      $     210      $     739      $     728
                                                            ------         ------    -------------  -------------
 
Net earnings per common share:
  Primary............................................    $     .03      $     .02      $     .07      $     .07
                                                            ------         ------    -------------  -------------
  Fully diluted......................................    $     .03      $     .02      $     .07      $     .07
                                                            ------         ------    -------------  -------------
 
Weighted average number of common and common
  equivalent shares used in calculation of earnings
  per common share:
  Primary............................................        9,975         10,643          9,992         10,754
                                                            ------         ------    -------------  -------------
  Fully diluted......................................        9,997         10,654         10,016         10,762
                                                            ------         ------    -------------  -------------
</TABLE>
 
    The accompanying notes are an integral part of these condensed financial
statements. 

                                       4


<PAGE>

                     VITRONICS CORPORATION AND SUBSIDIARY

                CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
                                (Unaudited) 
                              (000's omitted)

<TABLE>
<CAPTION>
                                                                                           NINE MONTHS ENDED
                                                                                      ----------------------------
                                                                                      SEPTEMBER 28,  SEPTEMBER 28,
                                                                                          1997           1996
                                                                                      -------------  -------------
<S>                                                                                   <C>            <C>
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income..........................................................................    $     739      $     728
  Adjustments to reconcile net income to net cash flows provided by (used for)
   operating activities:
    Depreciation and amortization...................................................          159            172
    Provision for excess and obsolescence...........................................          187            246
    Provision for bad debts.........................................................         --               13
    Changes in current assets and liabilities:
      Accounts receivable...........................................................       (1,637)          (677)
      Inventories...................................................................         (164)          (522)
      Other current assets..........................................................          (79)            85
      Accounts payable..............................................................          507           (195)
      Income taxes..................................................................          368            194
      Other current liabilities.....................................................           12            127
                                                                                           ------         ------
         Total adjustments..........................................................         (489)          (557)
                                                                                           ------         ------
 Net cash provided by/used for operating activities.................................          250            171
 
CASH FLOWS FROM INVESTING ACTIVITIES:
   Additions to property and equipment..............................................          (48)           (80)
   Additions to other assets........................................................          (51)           (31)
                                                                                           ------         ------
  Net cash used for investing activities............................................          (99)          (111)
 
CASH FLOWS FROM FINANCING ACTIVITIES:
  Payments of long-term debt........................................................         (190)          (124)
  Issuance of common stock..........................................................         --               13
  Purchase of Treasury Stock........................................................         --             (665)
                                                                                           ------         ------
  Net cash used for financing activities............................................         (190)          (776)

  Foreign currency translation adjustment...........................................          (81)             4
                                                                                           ------         ------
 
CASH:
  Net increase (decrease)...........................................................         (120)          (712)
  Balance, beginning period.........................................................        2,125          2,825
                                                                                           ------         ------
   Balance, end of period...........................................................     $  2,005      $   2,113
                                                                                            ------         ------
 
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
  Cash paid during the periods for:
    Interest........................................................................           28             30
    Income taxes....................................................................          133            281
 
SUPPLEMENTAL DISCLOSURE OF NON-CASH INVESTING AND FINANCING ACTIVITIES:
   Capital lease obligations........................................................          --              78
</TABLE>
  
    The accompanying notes are an integral part of these condensed financial
statements

                                         5


<PAGE>
                     VITRONICS CORPORATION AND SUBSIDIARIES
 
                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                  (Unaudited)
 
    A. Basis Presentation
 
    The accompanying unaudited condensed consolidated financial statements have
been prepared in accordance with generally accepted accounting principles for
interim financial information and pursuant to the rules and regulations of the
Securities and Exchange Commission. Accordingly, they do not include all of the
information and footnotes required by generally accepted accounting principles
for complete financial statements.
 
    In the opinion of management, all adjustments (consisting of only normal
recurring adjustments) considered necessary for a fair presentation have been
included. Operating results for the nine month period ended September 28, 1997
are not necessarily indicative of the results expected for the year ended
December 31, 1997. For further information, refer to the Company's consolidated
financial statements and notes thereto contained in the Company's Form 10-K for
the year ended December 31, 1996, filed with the Securities and Exchange
Commission (File #0-13715) on March 28, 1997.
 
    B. Inventories
 
    Inventories valued at the lower of cost (determined using the first-in,
first-out method) or market, were as follows (in thousands):
 
<TABLE>
<CAPTION>
                                                                                      SEPTEMBER 28,  DECEMBER 31,
                                                                                          1997           1996
                                                                                      -------------  -------------
<S>                                                                                   <C>            <C>
Finished Goods......................................................................    $     792      $     833
Work in process.....................................................................          801            663
Raw materials.......................................................................        1,373          1,493
                                                                                           ------         ------
 
                                                                                        $   2,966      $   2,989
                                                                                           ------         ------
</TABLE>
 
                                       6


<PAGE>
                     VITRONICS CORPORATION AND SUBSIDIARIES
 
                  CALCULATION OF NET EARNINGS PER COMMON SHARE
 
      FOR THE THREE MONTHS ENDED SEPTEMBER 28, 1997 AND SEPTEMBER 28, 1996
 
<TABLE>
<CAPTION>
                                                                                            SEPTEMBER 28, 1997
                                                                                          ----------------------
                                                                                                        FULLY
                                                                                           PRIMARY     DILUTED
                                                                                          ----------  ----------
<S>                                                                                       <C>         <C>
Net income..............................................................................  $  374,000  $  374,000
Weighted average shares outstanding:
  Common stock..........................................................................   9,856,572   9,856,572
  Stock options.........................................................................     118,198     140,208
                                                                                          ----------  ----------
  Weighted average shares outstanding...................................................   9,974,770   9,996,780
                                                                                          ----------  ----------
                                                                                          ----------  ----------
 
Earnings per share......................................................................       $0.03       $0.03


                                                                                            SEPTEMBER 28, 1996
                                                                                        --------------------------
                                                                                                         FULLY
                                                                                          PRIMARY       DILUTED
                                                                                        ------------  ------------
Net income............................................................................  $    210,000  $    210,000
Weighted average shares outstanding:
  Common stock........................................................................    10,316,597    10,316,597
  Stock options.......................................................................       326,483       336,975
                                                                                        ------------  ------------
  Weighted average shares outstanding.................................................    10,643,440    10,653,572
                                                                                        ------------  ------------
                                                                                        ------------  ------------
Earnings per share....................................................................  $       0.02  $       0.02
</TABLE>

 
                                       7


<PAGE>
                     VITRONICS CORPORATION AND SUBSIDIARIES
 
                  CALCULATION OF NET EARNINGS PER COMMON SHARE
 
      FOR THE NINE MONTHS ENDED SEPTEMBER 28, 1997 AND SEPTEMBER 28, 1996
 
<TABLE>
<CAPTION>
                                                                                            SEPTEMBER 28, 1997
                                                                                         ------------------------
                                                                                                        FULLY
                                                                                          PRIMARY      DILUTED
                                                                                         ----------  ------------
<S>                                                                                      <C>         <C>
Net income.............................................................................  $  739,000  $    739,000
Weighted average shares outstanding:
  Common stock.........................................................................   9,856,572     9,856,752
  Stock options........................................................................     135,109       159,191
                                                                                         ----------  ------------
  Weighted average shares outstanding..................................................   9,991,681    10,015,763
                                                                                         ----------  ------------
                                                                                         ----------  ------------
Earnings per share.....................................................................  $     0.07  $       0.07
 
                                                                                            SEPTEMBER 28, 1996
                                                                                        --------------------------
                                                                                                         FULLY
                                                                                          PRIMARY       DILUTED
                                                                                        ------------  ------------
Net income............................................................................  $    728,000  $    728,000
Weighted average shares outstanding:
  Common stock........................................................................    10,316,689    10,316,689
  Stock options.......................................................................       437,154       444,815
                                                                                        ------------  ------------
  Weighted average shares outstanding.................................................    10,753,842    10,761,504
                                                                                        ------------  ------------
                                                                                        ------------  ------------
Earnings per share....................................................................  $       0.07  $       0.07
</TABLE>

                                              8


<PAGE>
                     VITRONICS CORPORATION AND SUBSIDIARIES
 
               MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL
 
                      CONDITION AND RESULTS OF OPERATIONS
 
Results of Operations
 
    Sales for the third quarter ended September 28, 1997 increased 10% to
$6,380,000 from $5,814,000 for the same period in 1996. Sales for the nine
months ended September 28, 1997 were $17,594,000 compared with $17,880,000 for
the same period in 1996, a decrease of 4%. Bookings for the three months ended
September 28, 1997 increased 3% to $5,096,000 from $4,929,000 for the same
period in 1996. Bookings for the nine months ended September 28, 1997 were
$17,386,000 versus $17,594,000 for the same period in 1996, a decrease of 1%.
The Company does not anticipate that the change in net revenue and bookings for
the three and nine month periods ended September 28, 1997 are necessarily
indicative of the percentage change in net revenues and bookings to be expected
for the balance of the fiscal year. Backlog as of September 28, 1997 was
$2,287,000 compared with $1,984,000 at December 31, 1996 and $2,561,000 as of
September 30, 1996.
 
    Gross margin for the three months ended September 28, 1997 remained at 42%
from 42% for the same period in 1996. For the nine month period ended September
28, 1997, the gross margin percentage was 40% compared with 39% for the same
period in 1996.
 
    Operating expenses for the three months ended September 28, 1997 were
$1,827,000 compared with $2,047,000 for the same period in 1996, a decrease of
11%. Operating expenses as a percentage of sales were 31% and 35%, respectively.
Operating expenses for the nine months ended September 28, 1997 were $5,509,000
compared with $5,821,000 for the same period in 1996, an decrease of 5%.
Operating expenses as a percentage of sales were 32% and 33%, for the respective
nine month period. The 1997 spending includes $147,000 of expenses relating to
the tender offer from Dover Technologies which was substantially completed on
October 6, 1997. The Company incurred approximately $102,000 of due diligence
expenses during the 1996 quarter relating to a potential strategic relationship
which was not pursued. The decrease in expenses is a result of management's
efforts to improve efficiencies and reduce headcount during the second and third
quarter of 1997.
 
    The Company had non-operating expense of $13,000 for the three months ended
September 28, 1997, compared with non-operating expense of $23,000 for the same
period of 1996. During the first nine months of 1997, the Company incurred
non-operating expenses of $44,000 compared with $16,000 for the same period of
1996.
 
    The Company recorded tax expense of $300,000 for the quarter ended September
28, 1997, as compared to $141,000 for the comparable quarter of 1996. For the
nine month period ended September 28, 1997, the Company had income tax expense
of $493,000 as compared to $486,000 for the same period in 1996.
 
    Net income for the third quarter of 1997 was $374,000 compared to $210,000
for the comparable period of 1996. For the third quarter of 1997, net income was
$0.03 per primary share, and $0.03 per fully diluted share. For the comparable
1996 period, net income was $0.02 per primary share, and $0.02 per fully diluted
share. Net income for the nine month period ended September 28, 1997 was
$739,000 compared to 

                                      9


<PAGE>

$728,000 for the same period in 1996. For the first nine months of 1997, net 
income was $0.07 per primary share, and $0.07 per fully diluted share. For 
the comparable 1996 period, net income was $0.07 per primary share, and $0.07 
per fully diluted share
 
Liquidity and Capital Resources
 
    The Company continues to monitor its operations spending levels very closely
with the goal of cash conservation. During the nine months ended September 28,
1997, cash decreased $120,000 to $2,005,000.

                                           10


<PAGE>
                     VITRONICS CORPORATION AND SUBSIDIARIES
 
                                    PART II
 
                               OTHER INFORMATION
 
Items 1 through 5: Not applicable
 
Item 6:
 
    (a). Exhibits 

         27 Financial Data Schedule
 
    (b). Subsequent Events
                                                                

        I.      On September 3, 1997, Dover Technologies International Inc., a
            subsidiary of Dover Corporation (NYSE:DOV) and Vitronics Corporation
            (AMEX:VTC) announced that they entered into an Agreement and Plan 
            of Merger pursuant to which Dover Technologies would acquire 
            Vitronics. Dover Technologies' subsidiary DTI Intermediate, Inc. 
            did within five business days commence a tender offer for all of 
            the approximately 9,856,572 outstanding shares of common stock of 
            Vitronics Corporation at $1.90 per share in cash. The tender offer 
            expired at midnight EST time on October 6, 1997. The Information 
            Agent for the tender offer was Morrow & Co., Inc. of New York City.
 
                Under the Agreement Plan of Merger following consummation of 
            the tender offer, DTI Intermediate Inc. and Vitronics would merge 
            and the surviving company would become a wholly-owned subsidiary 
            of Dover Technologies. Vitronics shareholders who did not tender 
            their shares have the right to receive $1.90 per share in cash 
            for their shares in the merger or exercise their Dissenters Rights 
            under applicable law.
 
                The Board of Directors of Vitronics had unanimously approved 
            the tender offer and merger transaction and recommended that 
            Vitronics shareholders tender their shares pursuant to the tender 
            offer. Vitronics' financial advisor, Scott-Macon Securities Inc., 
            had delivered its opinion to Vitronics' Board of Directors on 
            September 3, 1997, that the $1.90 per share consideration in the 
            tender offer and the merger was fair to Vitronics shareholders 
            from a financial point of view as of such date.
 
                The tender offer was subject to certain conditions, including 
            that a minimum of 66 2/3% of the Vitronics shares were tendered and
            not withdrawn as of the expiration of the tender offer period and 
            clearance under the applicable waiting period under Hart-Scott-
            Rodino Anti-trust Improvement Act of 1976.

 
                                     11


<PAGE>

                Mr. James J. Manfield, Jr., former Chairman, President and CEO,
            said, "We are excited by the opportunity to be supported by 
            Dover's resources and being associated with such leaders in 
            printed circuit assembly as Dover's Universal, DEK and Soltec 
            subsidiaries."
 
                Mr. John Pomeroy, President and CEO of Dover Technologies, 
            said "We are delighted with the prospect of acquiring Vitronics 
            and excited with the opportunity to add Vitronics' technology and 
            products to our current leadership positions in printed circuit 
            assembly equipment."
 
        II.     On October 7, 1997, DTI Intermediate, Inc., a subsidiary of 
            Dover Technologies International, Inc., a subsidiary of Dover 
            Corporation (NYSE:DOV), announced it had accepted for payment and 
            would purchase, as soon as practicable, all shares of common stock
            of Vitronics Corporation tendered pursuant to DTI Intermediate, 
            Inc.'s tender offer for all outstanding shares of Vitronics 
            common stock. The tender offer expired as scheduled at 12:00 
            midnight, New York City time, October 6, 1997. During the week 
            following the expiration of the tender offer, DTI Intermediate 
            consummated the purchase of the Vitronics Common Stock tendered in
            the tender offer.

 
                Dover Technologies International, Inc. reported that 
            approximately 7,935,940 shares of common stock of Vitronics 
            Corporation were tendered in the tender offer, which constituted 
            80.5% of the outstanding common stock of Vitronics. Dover 
            Technologies International, Inc. further stated that the planned 
            merger of Vitronics Corporation and DTI Intermediate, Inc. would 
            be consummated as soon as practicable. A special Meeting of 
            Shareholders of Vitronics has been called for December 2, 1997 
            to approve the merger of Vitronics into DTI Intermediate, Inc.
             
                                      12


<PAGE>
                                   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 thereunto duly authorized.
 
                                       VITRONICS CORPORATION
 
Date: November 12, 1997                By: /s/Daniel J. Sullivan 
                                           ----------------------
                                           Daniel J. Sullivan, Vice
                                           President, Clerk, Controller and 
                                           Principal Accounting Officer

 
                                       13