It consist of base, mechanical rotating arm and lift cylinder, clamping cylinder, centering mechanism, curing chamber, lower hot platen. The machine structure is simple, To open and close molds will be realized through the clamping cylinder pushing clamping rings. And the sliding check arm is mounted inside clamping rings, the mold clamping is exact and reliable. The centering mechanism and capsule press spirally-driven are useful to increase the tire quality.