Rigid channel improves structural integrity of the window.Ĭopyright 2023 Caldwell. Wide range of available accessory parts allows for easy installation of sash.Replacement process is quick and inexpensive.Easy application method simplifies and improves productivity on the factory floor.Attached carriers allow for easy replacement of the balance after the vinyl window frame extrusions have been welded.When the spring is fully extended (like it would be in a closed lower sash) the spring force provides maximum life assistance.Ĭaldwell has continued to develop innovations to our block and tackle balance to provide simpler window assembly and quick methods of field service. This means that the sash can travel 5 times the total spring extension. The arrangement of the pulleys and cord provide a 5:1 travel characteristic. This type of block and backle Balance allows the sash to be opened 100%.Ĭaldwell’s Block and Tackle Balance is an assembly of:īlock and tackle balances use extension spring force to counterbalance the weight of a window sash. Recently, Caldwell’s inverted block and tackle tilt balance has gained market share because it travels with the sash and is hidden from view. No other balance platform provides such a well-adopted solution for sideload window types. Our block and tackle is a versatile balance platform with versions that support both tilt and sideload window designs. Long the standard for wood window designers, block and tackle balances are now incorporated into aluminum, vinyl and composite material windows. ← Older Post Newer Post → Recent ArticlesĬasement Windows vs.Caldwell’s block and tackle balances are a popular and growing platform. Share Share on Facebook Tweet Tweet on Twitter Pin it Pin on Pinterest If you have a balance and you need help determining the correct replacement part, give us a call at 1-80, contact us, or chat with us and we will be happy to assist you. There are many different balances with many different stamps. That is the basics of stamps on block and tackle window balances. For example, if your stamp is 14-4 or 1440, you would use the number after the dash or the 40 to get the correct weight range. You will have to compare your stamp to others that are available. The weight capacity can be determined from the balance, but not directly. 15-5/8") Determining WeightĪnother important dimension you need for your balance is the weight lifting capacity the balance will hold. Please note: If your balance does not measure an exact length, please contact us before placing your order (e.g. This number is one inch shorter than the actual length of your balance, for example, if your balance is stamped 14-4 or 1440 your balance length is 15". The first two numbers will determine the length of the balance. Your stamp will either have the form XX-X or XXXX (e.g. One of the most important dimensions for your balance is the length and that can be determined pretty simply from your balance. There could be other series associated with these styles of stamps, but those are the most common. If the stamp is laser printed onto the balance, that is most likely our 300 Series Balance, if it is engraved, then that is most likely our 400 Series Balance. To determine what series balance you have, you need to look at how the stamp is placed on the balance. Location of the stamp on a block and tackle balance Determining the Series The numbers on the stamp will tell you the balance series, the balance length and the balance weight range. Continue reading to learn how you can determine the correct replacement window balance you need. The stamp on a block and tackle window balance is a key identifying feature on each balance.
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