... of work-pieces surface Arc Height Controller, assistant automatic welding machine, can use with Longitudinal Seam Welding Machine. Below is introduction. ... factors, to ensure quality and improve the welding efficiency.2. Specification ModelYXAAHC-200ARated Loading Capacity20kgSlide ... .1~99.9secApplication WeldingMig/Mag, Tig, CO2Driving MotorHigh-Quality DC MotorInput PowerAC100~240V Single-Phase,50 ...