PET preform machine designed from ground up

Previously, Korean machine builder Dongshin Hydraulics Co. (Busan) offered an injection press that was essentially modified for molding PET preforms but its latest offering is designed specifically for the task.

The Pro PET 380 uses two accumulators and a servodrive pump, plus a servomotor drives plasticating via a gearbox to help accelerate cycle time to 17 seconds for a 24-cavity tool molding 24g preforms. “Sure we’re slower than state-of-the-art machinery, but our 380-tonne double-toggle machine only costs $180,000,” says Phillip Kim, executive VP at Dongshin. “The drive system we adopt also saves 50% on energy compared with hydraulic machines, and operation is at a quiet 74 dB.” —[email protected]