BC-3DZ High Speed Three Spindles Slat Grooving Machine is used for grooving process with three spindles processing, The addition of upper and lower spindle for corresponding side planing enhances the production precision of grooved slats.lt can be linked with end slatter at the front and connected to Lead Laying & Gluing AlO Machine at the end.the sandwich slats can be completed with 6 sides trimming slat,thereby significantly improving work efficiency and reducing labor costs.