The invention relates to a 
catenary suspension pass-type reciprocating rotation 
water curtain part cleaning 
machine. The cleaning 
machine comprises a 
catenary suspension conveying mechanism, and two ends of the 
catenary suspension conveying mechanism are provided with feeding and blanking trolleys. A 
cleaning room body is disposed below the catenary suspension conveying mechanism, a coarse cleaning work room, an ultrasonic work room, a rinsing work room, a hot wind 
drying room and the like are successively disposed in the 
cleaning room body, and a steam condensing 
system is further disposed over the 
cleaning room body. Cleaning material frames are hung onto the catenary suspension conveying mechanism, and to-be-cleaned parts are placed in the cleaning material frames. The to-be-cleaned parts successively pass through the coarse cleaning work room, the ultrasonic work room, the rinsing work room, the hot wind 
drying room and the like under the drive of the catenary suspension conveying mechanism, so the 
continuous operation process of coarse cleaning, ultrasonic cleaning, rinsing, hot wind 
drying and the like is achieved; and reciprocating rotation 
water curtain assemblies disposed in the coarse cleaning work room and the rinsing work room perform reciprocating rotation 
jet flow cleaning for the to-be-cleaned parts. The cleaning 
machine has the advantages of simple structure, convenient operation, comprehensive and thorough cleaning, the high degree of 
automation and the like.