Our factory has recently developed two types of six shuttles ci rcula r loom：one is heald belt type and the other is heald ba r type．Six shuttles running in place of four with increased two more shuttle trips；hence these two types of loom can be 30—50%faster than the four shuttles type and about 30%less power-consumption． According to the current ma rket—developing trend，these six shuttles type will take the Ieading role in making medium size of plastic woven bags．Especially the SJ—SYG750—6 Ci rcula r Loom is at the advanced Ievel in domestic market mainland China．