PETpla.net Insider 07+08 / 2015

PREFORM PRODUCTION 22 PET planet insider Vol. 16 No. 07+08/15 www.petpla.net Injection system for gallon water bottle preforms by Kay Barton Huayan Precision Machinery Co. Ltd, which is located in Guangzhou city, capital of Canton province, is specialised in manufacturing PET preform injection machines and moulds. With over 20 years’ experience in the PET industry, the company has become a significant force in the segment of PET preform solutions in China, and is gradually expanding its market share worldwide. The company product supplies complete turnkey-solution systems for preform manufactur- ing, and mould manufacturing including take-out robotics on demand for third-party suppliers, as well as mould conver- sion kits and bottle blow moulds for world-branded rotary blowing machines. The F250 preform injection system, as showcased at Chinaplas 2015, is said to combines energy-effi- cient injection moulding with flexible applications in preform manufacture. This is Huayan’s response to the increasing demand for PET preforms for high-volume bottles. “The F250”, explains Regional Manager for Sales, Mr Sydney Liao, “has been specially developed for manufacturing 5 gallon water bottle preforms. Within this range the machine can be run with six to twelve cavities for PET bot- tles from 2 to 5 gallons with neck diameters in the region of 110mm to 63mm”. Synchronisation between plasticising and packing means that not only shorter cycle times can be achieved but even problems of stress inside the mould and any potential preform damage can be kept to a minimum. The clamping force on the F250 is 250t; the clamping pres- sure and speed are controlled by means of a Rexroth servo-valve. The hydraulic unit is of independent construction. The company promises high-efficiency plasticising together with a high level of capacity thanks to a specially designed screw. For the screw drive, Huayan uses technology from Messrs. Staffa, UK. The com- pany also obtains hot runner compo- nents from Europe as well as from North America. The maximum injection volume is 4,747cm³ or up to 5,969g per shot. The injection pressure is capable of reach- ing up to 1,098,34 bar and up to 20g per cavity/sec. The triple axis unload- ing robot technology cools the finished preforms further during removal from the mould and gently transports the blanks to the conveyor so as to avoid instances of damage typical of a stand- ard ejection mechanism. “Although the plant is designed to cope with large bottles, we also offer moulds of up to 32 cavities for necks up to 43mm”. www.gzhuayan.com F.r.t.l.: Sydney Liao and Kay Barton in front of the F250 preform injection system