1. Automatic wide belt sander - available for each kind of board polishing.2. Automatic wide belt planer sander - available for heavy cutting of laminating, jointed panels and solid wood.3. Automatic wide belt sealer sander - available for lacquered panels sanding (generally used for board polishing after painting)Specifications:600mm,915mm,1100mm and 1300mm.Combination head: Single belt, two belts and three belts.Model: Economic model, standard model and heavy duty model.