Gravity shelf evolved by pallet shelf. Adopt by roller tracking or the bottom wheeled roller tray. Track presents a certain degree of gradient (3 °), using self-weight to fulfill the first in-first out principle. Suit for large quantities and same classify goods. Particular for a certain extent, not long backlog cargo. The whole depth(roller length)not need too long. And in the middle can add replenishment stock loaded. It is difficult in design , product and stalling, also high cost. This kind not suggest to make too high(max 6 meters).Load capacity is 1000kg of unit , otherwise its reliability and operability will be reduced.

                         Roller track                                            Dash control of gravity shelf