developed Automatic Sealer is designed for the continuous sealing of polyethylene and polypropylene materials. Controlled by a plug-in circuit board that provides the uniform by 2 electromagnet. Sealing is maintained automatically after 3 Timers are set. Comes with a foot switch for manual operation. MN-750AA/900AA/1200AA/1500AA are our new design for installing 2 electromagnets. Its pressure can be stable & better |