MANUFACTURING THE SIDE FRAME ZX – 200 5G

Abstract

An excavator is one of the heavy equipment used to move materials from one place to another. An excavator consists of several parts, one of which is the side frame. The side frame is the lower part of the excavator that functions to bear the load, provide direction, support the unit, and serve as the driving component of the heavy equipment. The data collection method involved consulting reference books, conducting direct observations, and performing interviews. The side frame uses SS400 material, which is low-carbon steel with a carbon content of up to 0.17% (max) and falls under ASTM (American Society for Testing and Materials) A36 or JIS (Japanese Industrial Standards) G3101 standards. SS400 steel can only be hardened through surface hardening processes such as carburizing. In the manufacturing process of the ZX-200 5G side frame, the first step involves tack welding the idler bracket and motor bracket using 322 amperes and a voltage of 29–36 V. This is followed by full welding of the idler and motor brackets, which takes approximately 42 minutes. The process continues with the full welding of the idler and motor brackets with the center body, using 275–300 amperes and a voltage of 33–35 V. Finally, the process concludes with the creation of the centerline and a visual welding inspection.