Product Description YUANDA pet preform making machines(pet preform making systemspet preform making plantspet preform making equipments) uses a new part cooling and handling system, which features: 1. Cooling on the inner surface of the preform without using compressed air, unlike most post-mold cooling systems which only cool the outer surface 2. Optimized cycle utilization _ being mounted on the moving platen, the cooling system remains active for up to 85% of the overall cycle. YUANDA pet preform making machines are available from 280 to 500 tonnes (2800 to 5000 kN) and up to 72 cavities. YUANDA pet injection systems offer: