Bat Roller

The term “Bat Rolling” refers to the process of artificially compressing a composite baseball or softball bat through a mechanical roller device. The compression factors achieved through a well-built bat roller will force the fibers in the composite matrix to stretch to, and sometimes beyond, their sheer strength breaking point.

The end result of a proper bat rolling procedure is a bat that exhibits maximum trampolene effect when it contacts a baseball or softball, which translates to longer hit distances and greater hit velocity. It is a well-established fact that almost all composite softball bats have some degree of “break-in” required before the bat will perform to it’s maximum potential.

This bat rolling process is mimics the natural break-in process which occurs through hundreds (sometimes thousands) of swings over time. The bat roller machine can take a brand new, never before used bat, and in less than twenty minutes produce a bat that will consistently deliver optimum performance without any need for an extended break-in period.

A well designed bat roller will thoroughly elongate the composite matrix to allow the best possible performance from a legal and non-modified bat, without voiding the bat manufacturer’s warranty. The well respected Kittering University conducted a research project detailing the positive effects bat rolling has on a composite bat in the section here titled “Accelerated Break-In Processes”.