This group of machineries are pallet changing machines and handling equipments, also named as pallet flipper or pallet flipping machine.
The pallet inverters are used for replacing pallet purpose. It's often to see products loaded on wooden pallet are damaged at the bottom, and it can be a heavy work if we move all the goods above to change the ones at the bottom or for pallet changing. By using the pallet inverter, you can just flip the pallet and goods 180 degree and easily change the damaged products and pallets.
The 90 degree pallet changer is commonly used in frozen food industry. The machine tilt the pallet 90 degree to give space to operator for changing the pallet. The turnover action also can be used to shake the frozen cartons and remove the freezer spacer easily.