The portable milking machines are mainly constituted by:
1. Milking system: pulsator, claw, stainless steel teat cups, milking liners and tubes, stainless steel milk bucket etc.
2. Vacuum system: vacuum pump (blade), vacuum tank, auto-stop vacuum valve, muffler, vacuum gauge, vacuum ball-valve, electric motor, gasoline motor, etc.
3. Mobile frame (structure): portable trolley with wheels.