New Toggle Presses from China: All-Electric or Servo-Hydraulic
Bole North America introduces two new lines.
Bole North America is introducing two new series of Chinese-built machines. The FE full-electric, high-speed line comes in 110 and 180 m.t. and the servo-hydraulic EK series is available from 90 to 500 m.t. These machines boast a toggle clamp that applies force in the center of the platens rather than in the corners, along with floating tiebars, both of which are said to reduce deformation and wear. They also come with KEBA touchscreen controls.
Weld or knit lines are perhaps the most common and difficult injection molding defect to eliminate.
Flashing of a part can occur for several reasons—from variations in the process or material to tooling trouble.
Modifications to the common core pin can be a simple solution, but don’t expect all resins to behave the same. Gas assist is also worth a try.