Design, analysis and consideration for manufacturing of an extrusion machine for fish sausage (Keropok Lekor)
Law, Zhi Yu
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This study describes and discusses the design of a lekor snack extrusion machine for application in lekor snack manufacturing industry. Lekor snack is a popular fishbased snack in Malaysia. Although its shape is similar to that of fish burger or hotdog, its production involves somewhat different processes. A survey has been done at the LKIM Kuala Kedah to clearly understand the lekor snack manufacturing process and at the same time to identify operation of the extruder machine. The extruder machine design in this study uses the extrusion concept by means of direct extruder in polymer industry with consideration in right specification of operation pressure and temperature. At the same time, meat mincers in the market apply the same extrusion mechanism. Reverse engineering has been done on the meat mincer in order to incorporate standard design practice to a new design of extrusion machine. Related theory is also applied into the machine design consideration. Mechanical components of the extruder machine are designed using CATIA software. Each part of the designed machine is analyzed and from the analysis the von mises stress or maximum load that can be withstood by the components is determined so as to establish the right specification for the new design.