Browser Not Supported. Hoop frequency as a predictor of performance for softball bats, Tuning a bat to optmize the trampoline effect, Controlling vibration with a dynamic absorber. If a bat is dead, it should make a dull thud sound. Relevance. Of course, if you don't time the swing just right the bat barrel would be moving backwards because of the flex while the bat as a whole is rotating forward, and the effective bat speed would be reduced. As such, it is much easier to shift mass around from barrel end to handle (or the other way around for end-loaded bats) to control the location of the balance point and thus the swing weight. If you are hitting the ball on the handle or off the end cap, most bats will perform as if it were dead but that does not mean that it is. After that the performance of this kind of bat even increases, as the fibers are properly set. At JustBats.com, we receive a lot of questions about baseball bats and softball bats. and may be the beginning of your bat going dead. To ease your mind, we're going to answer this question and outline the best way to determine whether or not it's time for a new bat. Most baseball bats last 2 years – especially if you’re in the little leagues. But, only you will know if your bat is making a sound that is not right or different from when you first started swinging it. That means a bat that’s long enough to cover the strike zone, light enough to swing with ease, heavy enough to generate power, and, of … This is not a recommended practice as it is bound to fall back out quickly and the bat will perform at a decreased level. This means that one might be able to design a bat which would "feel" better or sting less by adjusting the bending stiffness. Due to the construction, you will not see cracks or fractures of any kind. Make sure to rotate the bat ¼” between each hit. Limit it to individual use, if possible. dead and are just not being hit in the sweet spot. If they become dead before then, normally there’s a warranty in place so you can get your money back or request a replacement. One bat is aluminum and the other is composite, but bats are 34-inches long and both weight exactly 30-oz. If a bat is dead, it should make a dull thud sound. This is one of the more personal ways to tell if your bat has officially died on you. If you are still unsure and would like further clarification as to whether or not you have a dead bat, please give our knowledgable Bat Experts a call at (866-321-2287). So how long is your composite bat going to last? As for the warming up, aluminum bats do not require any. If you are in high school, you might as well just throw that comp bat away. The team at JustBats does not necessarily recommend using this method because it is never a good idea to hit your knob on the ground. If you notice this happening and you're covered by a warranty, get it replaced immediately. If you see a massive crack that has split your composite bat in half, then there's a great chance it is dead. The data points in the figure below have been identified by color and shape according to the type of barrel construction, and this provides an interesting analysis of the performance results.[6]. Please upgrade to a supported browser: Answer a few simple questions to find your perfect bat. Avoid using your bat in temperatures below 60 degrees Fahrenheit. As far as I know the jury is still out as to whether this handle flex "whip action" actually improves performance, but I have heard that it does affect a player's swing mechanics in addition to affecting the perception of feel. By changing the angle of the weave in the composite material fabric, the stiffnesses in the longitudinal (along the length of the bat) and circumferential (around the barrel of the bat) directions can be modified pretty much independently of each other, and without changing the distribution of mass along the length of the bat. There is only a matter of time before your bat goes completely dead. Of course it is possible to add damping reduction systems to an aluminum bat to increase the damping - many youth bats have such vibration reduction systems. Composite Decking. In some sense, it is the grandfather of the CAT Composite. of your bat. Here at. a player has his teammates, coaches, and parents chirping in his ear that his bat may be dead, he or she is going to assume that it is dead. Today there is a wide variety of composite choices from several manufacturers, including all-composite bats, bats with composite handles and aluminum barrels, bats with composite outer shells over aluminum barrels, and even some all-composite double-wall bats. The aluminum bat has a balance point 22.5-inches from the end of the handle and has a very large moment-of-inertia (11,134 oz-in 2 ). In trying to make the bat light enough with swing weight she desired they ended up thinning the walls of in the handle. The best way to make sure your bat stays in the best possible shape for the longest amount of time possible and that it does not go dead on you is with preventative care. Here at JustBats.com, we recommend about 150-200 swings off of a tee or by hand toss with a quarter rotation after each swing. The red data points and dashed lines are for a different softball bat with much lower bending stiffness and a fundamental bending frequency of 85 Hz. At the time titanium bats were introduced, the best single-wall aluminum bats were performing around 93-94mph, so when the titanium bats with batted-ball speeds between 100-103mph entered the game they made an immediate impact. Speaking of sounds, does your bat have a rattle when you shake it? Is the handle getting pushed up into the barrel? With repeated baseball impacts, microdamage will develop in composite bats in the form of microcracks, fibre breakage and delaminations. Break it in, use it in batting practice, and then use it in practice before jumping to conclusions. The blue data points and dashed lines indicate the relative sensation for a current production composite slow-pitch softball bat with a very stiff handle and a fundamental bending vibration of 220 Hz. You can try reloading the page by clicking here. The best way to test for these dents is to run your hand across the barrel. If the mechanics of the swing are timed just right, the bat flexes during the swing, and the bending of the bat causes the bat barrel to move forward just before contact is made with the ball. Paint falling off the barrel does not mean your bat is dead. We apologize for the inconvenience, but something went wrong with this page. In addition, thinning the walls in an aluminum bat changes the mass distribution of the bat. But soon after 2000 things began to change. I have two bats in my lab which I routinely bring into my physics classroom to illustrate this point to my students. This is different from alloy bats that are prone to denting, which does negatively impact the bats but even after a dent or two, they remain usable. One bat is aluminum and the other is composite, but bats are 34-inches long and both weight exactly 30-oz. Remember, we're here for you from click to hit! The team at JustBats does not necessarily recommend using this method because it is never a good idea to hit your knob on the ground. So, this brings us to the question at the top of this page. Even though both bats have the same actual weight, the difference in their balance points and MOI causes their swing weights to be very different. Hitting a ball away from the "sweet spot" causes the bat vibrate, and that vibration may be felt strongly in the hands as a painful sting. Now, if you know that your bat is fully broken in but the pop is starting to decline then your bat may be dead or well on its way. If you are positive that your bat is dead, let's get the warranty replacement process started as soon as possible. But, the point had been made: it was possible to design and manufacturer a composite bat that could perform as well as the best aluminum bats available. Keep in mind that composite bats do require a break-in period. It wasn’t until manufacturers began using aluminum alloys and more advanced designs that the aluminum bats began to really outperform wood bats.Composite bats came onto the scene in the mid-1980s, but quickly disappeared because they didn’t perform as well as aluminum, and they didn’t produce that popular “ping” sound. 4) What balls do you use? Composite baseball bats are typically made using filament-winding, braiding or layering of woven fabrics made with fibreglass and possibly carbon yarns reinforcing a thermoset or thermoplastic matrix. Related Question Categories. We have even heard of the tried and true method of holding your bat by the barrel and tapping the knob on the ground. As as result, high performance composite bats like the Miken Ultra and Ultra II, and the Easton Synergy, titanium bats, along with several other composite and double-walled bats are now illegal for ASA league play. The graph at right shows how the sensation of vibration, in a human hand gripping a vibrating rod, varies with the frequency of vibration. One of the more recent trends, which DeMarini and Easton have been successfully marketing, is a hybrid bat in which an aluminum barrel is attached to a composite handle with low bending stiffness. Answer Save. You may also shoot them an email with pictures at support@justbats.com or click here to live chat. Do NOT clean your metal cleats with your bat. Usually, a small piece has fallen off and is rattling around inside of your barrel. But, a rattle also does not usually have a negative impact on the overall performance The early ones (which were not tested in this study) performed like an average single-walled aluminum bat. The best double-walled aluminum slow-pitch softball bats on the market have batted-ball speeds between 96-100mph. Sometimes the smallest of cracks can have a huge negative impact or none at all. it depends how often it is used - roughly 2 years. It is my recommendation to keep the temperature above 65 degrees Fahrenheit. Keep in mind that all bats Bat Speed of Hitter. These testers will determine if your bat is legal In fact, titanium bats were so much hotter than anything else available that they were quickly banned by all governing organizations within three months of their introduction. Most manufacturers, if you were to read the warranty policy, also suggests a similar temperature. How long can a baseball game last? Bat (60) A Bat (5) Bats (6) Related Types. In the cold, composite bats harden up and do not flex at impact. Below this, they give a dismal performance. Anonymous. Some composite barrelled BBCOR bats appear to keep getting hotter and hotter over the years. The faster you/your player swing the bat, the harder the collision with the ball will be. To ease your mind, we're going to answer this question and outline the best way to determine whether or not it's time for a new bat. Composite bats are manufactured using carbon fiber. And while most slow-pitch softball bats have fundamental bending frequencies between 150-200 Hz, the use of composite materials provide a manufacturer with a considerable amount of variation in the way a bat will feel in the hands of a player. All bats have a limited life. History. There is a group of recent composite models which compete in performance with the best double-walled aluminum slow-pitch softball bats, having batted-ball speeds between 96-100mph. In 2001 the Louisville Slugger Genesis[3] all-composite slow-pitch softball bat achieved the #1 ranking in Performance at the 2001 Bat Wars, and just barely lost the overall #1 ranking to Worth's EST double-wall aluminum. and a rattle should be covered by your manufacturer's warranty (if you're within the time period). Using the Threshold Level curve, the plot shows that the hands will be more than 10 times more sensitive to vibrations in the handle of the stiffer bat than they would be for the bat with the lower bending stiffness. Don't let paint chips fool you. This material is suitable for distributing the weight evenly throughout the bat. There were problems with durability, however - the early Genesis bats (model SB34) were notorious for breaking after 50 or so good hits. Anonymous. Related Facts. The horizontal line at 98mph represents the current upper limit in performance as set by the ASA for slow-pitch softball bats using the ASTM F2219 high speed test standard. And, how is it that composite bats are able to outperform the best aluminum bats? The Flying Fox Bat (1) Bat (753) Composite Volcanoes (3) Composite … Some aluminum bats can hold their pop for years and years and thousands of hits. The idea is similar to what happens in a good golf swing. Now, if you are certain that you're drilling the sweet spot during each at bat yet still experience serious sting in the hands, your bat may be on a downward decline towards death. If you're not impressed with the performance of your composite bat right out of the box, don't automatically assume that it is dead. If you are positive that your bat is dead, let's get the warranty replacement process started … Composite bats last for a really long time and even need up to 150 hits in order to break in. pop an end cap back in place and continue to use the bat. They can be used almost instantly. The lightest bats currently available are composites. We have even heard of the tried and true method of holding your bat by the barrel and tapping the knob on the ground. To do this, it’s important to swing the right bat for you. I asked a couple of them about using the composite bats in the cages and they said there was nothing wrong with it. Composite bats actually cover the entire range of performance. Hit 50 balls off a tee using about 50% power. 1. When it comes to durability, alloy bat ranks higher on that part. Miken responded in 2002 by developing their own composite softball bat. The lifecycle of the bat comes down to how much you use it. This tends to be a sign of the composite material being fully broken in and at it's peak performance. Now, if you have broken in your bat, experienced it at full power, and are now noticing a huge decline in ball flight on contact, you may have a legitimate cause for concern. It is no coincidence that aluminum bats have thick rubber padded grips do add damping to the handle, and many players wear thick batting gloves when hitting with an alunimum bat to further reduce the sensation of sting. In short, bats wear with usage after a long, difficult season. Aluminum bats were introduced in the 1970s, and performed similarly to wood bats at the time. This is because, due to its structure, alloy bats can give you a great performance for about two years or more, and its only problem would be it making a dent. If you are a player who gets a bat for fall ball, hits in the cage throughout the winter, joins a team in the spring and plays for a travel squad in the summer, you may only get one year out of a bat. That is all part of hitting a hard object with another solid object. When alloy bats go dead, you will notice significant dents in parts of the bat where it will start to concave. Most bats are falsely accused of being That is until it eventually fails and the web turns into a crack. Some umpires will automatically deem your bat illegal when they hear this, You may have seen someone Unfortunately, most bats do lose their pop in time with enough use. Higher bending stiffness means that the frequencies of the bending vibrations for the lowest bending mode fall into the range where the hands are most sensitive to vibration. To make the handle strong enough that it won't break, the thickness of the aluminum tubing usually results in a relatively high bending stiffness, though the bending stiffness does also depend on the dimensions of the barrel. Baseball is very much a mental sport. This is a recipe for disaster. Do composite bats hit farther? It is hard to put an exact expiration date on a bat, but under normal circumstances, composite and aluminum bats will last about a year before they start to lose their pop. It is recommended that you should go over your bat thoroughly and check for any excessive wear or damage at least once a year and approximately every three months for an oil or natural bat. It may vary from case-to-case. So, if an umpire allows it and the performance is not declining, keep swinging away. If you have metal and/or composite bats then you should replace them approximately every two years assuming normal usage. Hitting composite bats at speeds faster than they are designed to withstand can cause premature cracking and damage the bat before reaching its full performance potential. Miken Ultra II SSUSA 1-Piece Slowpitch Softball Bar. Like in previous posts it is evident that there are many variables that determines how long any single bat will last. Composite bats flex. to prolong its life avoid using it/leaving it in the cold and in the batting cage [because the bat wasnt designed to … that your bat gets tested before use. In fact, most composite bats have metal rods inserted in the handles in order to bring the weight up to normal values. And then there are composite bats which outperform any metal bat ever made (including the legendary titanium bats). Do your hands sting every time you hit a ball on the sweet spot? or spiral fractures. Are bats “hot out of the wrapper” a good value for me? With aluminum, a manufacturer is constrained in how thin the walls of the barrel and handle can become before the structural integrity of the bat is compromised. 1 decade ago. Use regulation baseballs and softballs only. While if a bat is not dead, it should make a normal, high-pitched ping. Composite bats are great, but just make sure you take care off it and it will last a long time. that are broken down, the greater the trampoline effect and bigger the bounce off the bat is. Keep your bat out of extreme hot or cold temperature areas such as the trunk of your car. In fact, a few years ago when the BPF test was being used by all softball governing organizations (a similar test called the BESR was being used by NCAA baseball) to measure bat performance (all tests were conducted by impacting the bat at its center-of-percussion) it was discovered that by shifting the balance point, a manufacturer could design a bat that would pass the required performance test, while it performed much higher in the field. In rare occasions, the connection piece may fail, and you will notice the handle starting to creep up into the barrel. Have you heard why kids need new bats even if they got a new one last year? [9] But, these tend increase the overall weight of the bat, and are not often used in adult bats. Composite materials provide a manufacturer with a very wide range of possibilities to design a bat to a targeted performance and/or feel. The closer the bat's balance point is to the handle, the easier it is to swing. In 1993 Easton, Worth and Louisville Slugger each introduced titanium softball bats (Worth had kept theirs under wraps for several years because they knew it would radically change the game and only released it when Easton did). This is one of the more personal ways to tell if your bat has officially died on you. However, it is a mistake to think the bats are similar. you are still unsure as to whether or not your bat is dead. Single-walled aluminum slow-pitch softball bats produce batted-ball speeds between 90-96mph. However, picking them up and swinging them clearly differentiates between the two. The result was a bat that literally bent in half every time she made good contact with the ball. Aluminum alloy bats dent. With most composite bats, they are two-piece constructions made up of a handle and a barrel that is brought together by a connection piece. There are composite bats which perform about the same as a lesser quality single-wall aluminum bat. Once a knob has fallen off, or an end cap has popped out, it is next to impossible to re-apply these pieces and get your bat back to its original state. The graphite and glass fiber materials used to manufacture composite bats are much lighter than aluminum. Below is a list of bat care tips that will keep your bat performing at the highest level possible for the longest amount of time: Almost all composite and aluminum bats purchased at JustBats.com come with a full twelve (12) month manufacturer's warranty. Yellow rubber batting cage balls are bad. 1 Answer. If it does, this doesn't always mean that your bat is dead. Mix and match eligible items for extra savings! Several factors weigh into how long a bat lasts before losing it’s rebound strenght that has little to do with the bat itself. of the problem before it becomes a problem. A rattle tends to be the epoxy glue that holds your But, these testers are not always readily available. If it is not smooth and you notice an indentation, this will have a negative impact on the performance How are composite bats different from aluminum bats? But once a composite bat cracks, it is worthless and not usable anymore. Using the high speed impact test, wood bats produce batted-ball speeds between 88-90mph (there are no data points for wood bats because a solid wood bat does not have a hoop frequency). It … One of the most common questions that our Bat Experts receive is, "How do I know if my bat is dead?" How long do composite bats last? But, only you will know if your bat is making a sound that is not right or different from when you first started swinging it. Composite bats have been around as early as the 1980s for use in slow-pitch softball. Thus, the bat barrel speed is a combination of the rigid rotation of the bat and the flex, and the effective bat speed may be faster than what one could obtain for a stiff bat which does not flex. Or you could make the handle softer while keeping the barrel stiff. On the other hand, look closely for hairline fractures, stress cracks, 1 decade ago. Unfortunately, it takes 300-500 hits before a bat is fully broken-in, and many players are not willing to wait that long before bringing their composite bat to its full potential. There is some argument as to when this begins. Instead, after much consultation with manufacturers and with advice from a couple of scientists and engineers who really understand the bat-ball collision, the ASA decided to change and toughen up the performance standards used to certify bats as being legal. This next bat for seniors is one very rare bat. There are two types of composite bats: A balanced weight bat – the weight of the bat is distributed evenly. Composite materials, however, give the manufacturer the option of lowering the bending stiffness of the bat, without changing any of the stiffness properties in the barrel which affect performance. Composites last a year to around 3. And then there is a select group of super high performance composite slow-pitch softball bats, including the famous Miken Ultra, which are capable of producing batted ball speeds in excess of 105mph. All bats have a limited life. However, picking them up and swinging them clearly differentiates between the two. . The balance point for the composite bat is more than 3 inches closer to the handle, at 19.4-in, and as a result it has a much lower MOI (8963 oz-in2). Keep in mind that composite bats do require a break-in period. end cap in place. So, there is data showing that the performance of composite bats improves as they are broken. Do composite bats wear out? Any idea how long I can expect it to last before it begins to wear out? [8] The lower solid curve indicates that the hands are most sensitive to vibrations between 200-300 Hz, and much less so to vibrations below 100 Hz or above 500 Hz (note that a logarithmic scale is used for both axes). Then, once you have completed those initial 150+ swings, hopefully, the barrel of your composite bat should be broken in. Watch this video and find out through the most up to date research. Most notably, Louisville Slugger developed a slow-pitch bat that was awarded best performance at the 2001 Bat Wars. One of the most common questions that our Bat Experts receive is, "How do I know if my bat is dead?" Reason I am asking is I am getting ready to get my DD a new bat and would rather she use it in the cages if she can to help break it in but my other DD used to use her composite bat in the cages and it broke in half at the neck. The second generation Genesis (model SB103) has a slightly thicker wall and is more durable, though at a slight sacrifice in performance. Take care This means that you can make the barrel of a composite bat soft while still maintaining the stiffness in the handle. Keep in mind that it is difficult to determine if a bat is dead or not without actually using it, seeing it, or listening to the sound it makes on contact with a ball. Rotate your bat a quarter of a turn after each swing, if possible. Bats have been around for at least 50 million years, and there are many reasons for why they’ve managed to thrive for so long and in so many different environments.From their highly evolved bodies seemingly built for flight to their hyper-accurate sense of echolocation, bats have become one of the hardiest and longest-lasting species of animal to ever exist. Now, if you know that your bat is fully broken in but the pop is starting to decline then your bat may be dead or well on its way. Replace them approximately every two years assuming normal usage which were not tested in this study ) performed an! Bat into consideration when determining whether or not your bat is essentially worthless a object! 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Go dead, you will notice significant dents in parts of the bat almost all and... Not require any suggests a similar temperature you 're covered by a,... Bats can hold their pop in time with enough use they said there was nothing wrong with it a. To concave bats harden up and swinging them clearly differentiates between the two look closely for fractures. Before your bat is dead problem before it begins to wear out usable anymore by... Is only a matter of time before your bat is dead ],. End cap back in place a full twelve ( 12 ) month manufacturer 's warranty hand, composite bats for. Hand are still usable, even if they got a new one last year between each hit replaced immediately month. And the bat, and then there 's a great chance it is used - roughly 2 –! It eventually fails and the performance is not a recommended practice as it starts to.... Not to share your bat into consideration when determining whether or not is. 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