Bat rolling for softball and baseball bats. Usssa, USA, BBCOR, ASA Bat rolling is a process that can add incredible pop and distance to any composite softball or baseball bat. Everyone knows that bats get hotter after about 500-800 hits. The trouble is, by the time you have put that many hits on the bat it is well on it’s way to being worn out. By rolling your bat you can enjoy the bat’s maximum potential from the very first swing without putting all the wear and tear on it. The bat is placed between two rollers and then pressure is applied so that as the bat passes through the rollers the bat’s fibers are stretched out. This causes the fibers to become more flexible which greatly improves the bat’s trampoline effect when the ball hits it resulting in increased batted ball speed and distance. It will make the sweet spot bigger and much more consistent as well. Most of the people rolling bats decide what the maximum pressure is they’re going to roll a bat at and they start out right at that pressure, run the bat through the machine a few times and they’re done. This is usually what causes bats to lose their durability or the paint to spiderweb. You may get your bat back from being rolled and think everything is fine and then have it break on you 3 weeks later. When we roll a bat we take the pressure we are going to end up at, divide it by four and start there. Then, each successive cycle we adjust the pressure up 25% so by the time the bat sees it’s max pressure it is ready for it. By rolling a bat this way it will make 160 passes through the machine. This process takes much longer than most companies offering bat rolling are willing to take.