Leading PET bottle production equipment specialist SIPA is coming to Chinaplas (Stand B55 in Hall 4.1.) in May to demonstrate its strength in sustainable solutions for packaging that combines high performance with low weight. SIPA produces machinery and molds for injection molded PET preforms and for stretch-blow molded containers, in sizes from the smallest miniatures all the way through to the largest bottles for water coolers. It also provides leading design services that help customers create products that stand out from the competition.
Headquartered in Italy and with manufacturing units in several countries, SIPA has operations in China for preform and bottle mold production, refurbishing and conversion. SIPA is the only European firm providing its Chinese customers with locally designed and produced molds for preforms and bottles. Its experts in Hangzhou can design molds, preforms, bottles and perform a wide range of laboratory tests. SIPA’s mold refurbishing and conversion services in China are an important element of its total PET preform and bottle mold offering.
They provide customers with the option of having some components replaced by new ones in order to improve preform quality (refurbishment), or having the mold converted to produce a completely new (and quite often lighter) design of preform. The advantage of mold conversion over buying a completely new mold lies in the lower capital investment involved. The base (or “shoe”) of the existing mold is retained and reused, accelerating return on investment. Customers can choose which alternative works best for them by having local SIPA experts come and carry out a mold audit.
They will assess the state of wear of the various mold components on the spot, and propose different options for conversion and/or refurbishing, according to the customer’s request. These services complement SIPA’s extensive in-house capability to develop and produce complete brand-new high-performance molds including, in the case of preform molds, hot runners – also developed and produced by SIPA using class-leading technologies. The hot half of each SIPA mold requires maintenance only after five million cycles, and it is possible to carry out maintenance on components such as piston, flange O-rings and pin valves without taking the whole mold apart.
SIPA’s service center in Hangzhou, China, has been operating for 15 years, complementing two others around the world — one in Italy and one in the USA. In that time, its facility has grown rapidly. The Hangzhou operation can now produce 300 cavities a month for blow molding and 800 cavities for injection molding. With local mold plate manufacturing as well, a 144-cavity cold half can be created in just eight weeks. SIPA continues to enhance its mold production, refurbishment and conversion capability in China, keeping a strong focus on lean manufacturing to improve efficiency and reduce lead time.