2 heads calibration sanding machine heavy duty for plywood board, is very famous and good quality sanding machine, equipped with two big sanding motor: 75kw x 2sets, diameter of the steel sanding rollers: 400mm, total weight of this sanding machine: 17000kgs, the frame of the sanding machine can be seperate, you can assembly in your factory with our manual book. Plywood sanding machine is very important machine of plywood board making, if you need any sanding machine, welcome to inquiry us.