The company cited overcapacity and a weaker economy in the U.S. and Japan.
The company expects revenue to fall 35% from the second quarter, compared with earlier expectations estimates of flat sequential revenue growth.
Another manufacturing equipment maker,
was up 1.1% after it issued an earnings warning late Thursday. Dover said earnings for the third quarter will be 15 to 18 cents a share, below the consensus estimate of 27 cents and much lower than the year-ago period's 67 cents.
Dover, which makes a broad range of industrial products, blamed the worsening conditions in the electronics market.