Press Releases IWF: WEIMA America introduces special ECO1 August 15, 2011 | 4:10 pm EDT Comments Print WEIMAâs ECO1 Grinder has been an integral part of wood shops for years. Weima will introduce its new âLog Spacerâ hopper design and special serrated knives at this yearâs IWF. Many customers have small volumes of wood scrap including rippings, blocks and board scrap. Historically, customers have had to look at horizontal units for lineal scrap and hopper fed units for board and block scrap. This new hopper design along with 28 Weima patented âcross cutâ knives, allows for a wide range of material to be shred.Source: WEIMA America Have something to say? Share your thoughts with us in the comments below.