CHICAGO — Visitors to the Tomken Tool & Engineering Inc. exhibit (Booth E8936) at NPE 1997 in Chicago can see two tiny injection molding machines, distributed by Tomken of Muncie, Ind.
M.C.P. Equipment of Stone, England, is introducing what it says is the first fully automatic small injection molding machine capable of coloring and molding the full range of engineering thermoplastics.
The table-top Sprite 7/50 has a clamping force of 51/2 tons. It molds shots up to one-quarter ounce, through an initial screw plasticizer combined with injection by a plunger, according to Tomken.
The touch-screen controller lists four temperature control zones, injection, cooling and recycling times, ejection stroke and stroke lengths.
The other machine is a Bradford Neal Vision 20/2.1 horizontal press, with a Siemens S-7 controller.
Clamping force is 20 tons, with a 2.1-ounce shot size.