Heavy duty hand operated truck folding machines specially suitable to form heady and large right angle and curved folds on the sides of the trunks and also suitable for folding the sides of trays and various other similar articles with help of suitable eddies, operation through the bed by eccentric shaft raising and lowering the top beam, top beam has adjustment for height, complete with one M.S. bending die for 9o0 (sqare )bends, a set of gauges and bench mounting stand.