MA340A fully automatic 10~80MPa big steel pipes hydro testing machine is designed and manufactured for the steel pipe according to API SPECT 5CT&5L, 5B standard, design and manufacture base on the principles of simplicity, strength, stability, economy and convenience. This steel pipe hydro testing machine is four-beam and middle-feeding type, which is suitable for the hydrostatic pressure testing of steel pipes with an outer diameter of Φ114~340 and a pipe length of 6~15m.