ASTM A194 2h Grade 8 8m Heavy Hex Nuts Stainless Steel 304 316, Uni5587 M4 to M48

 






 

ABA Three Layer Co-Extrusion Film Blowing Machine is with two screw & barrel, to make out three layer PE film for flexible packaging bags, T-shirt bags, garbage bags, shopping bags. The machine can use HDPE,LDPE, LLDPE virgin raw material, recycled material, CaCO3 compound, biodegradable material, master-batch and additives.
In some markets such as Turkey, Thailand and Vietnam where T-shirt bag production has become extremely competitive, film producers are now replacing their existing mono layer extruders with ABA 3 layer co extrusion blown film machines, mainly to save production cost. One of the biggest T-shirt bag producers in Vietnam has already replaced half of its mono layer extruders with ABA machines in the past 3 years to stay competitive in the local market.

The A-B-A Blown Film Machine consists of two extruders, normally of two different sizes. The most common ones today are the combination of a 45mm screw diameter together with a 55mm for T-shirt bag production. For garbage bags, normally a 55mm screw diameter with a bigger 65mm is used. In the A-A outer layer, normally 20% of CaCO3 is used, with some additional of color masterbatch, LLDPE and a larger percentage of HDPE. The B layer can be used with larger percentage of CaCO3 with HDPE raw material. In-house recycled pellets can also be used to the mixture. 

Besides reducing a significant amount of raw material used in the formula, another advantage of the ABA machine is that the 3 layer film that it produces is 30% stronger than film produced by a mono layer extruder. The ABA machine is also much more economic comparing to an ABC three layer machine as it has one extruder less.

Three Layer Film Blowing Machine

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Ruian Saiway Import & Export Trade Co., Ltd. , http://www.kaiyuemachine.com