Quick change toolposts are a type of toolpost used in metalworking lathes to quickly and easily change cutting tools. They provide convenience and efficiency by allowing the user to swap out tools without the need for time-consuming adjustments. Quick change toolposts come in various sizes to accommodate different lathe models and tool sizes. Here are some common sizes of quick change tool posts:
AXA Size: The AXA size is one of the most popular and widely used quick change toolpost sizes. It is designed for small to medium-sized lathes, typically with swing capacities ranging from 9 to 12 inches. The AXA toolpost has a center height of 0.6 inches and accepts tool holders with a maximum height of 0.5 inches.
40-Position Quick Change Tool Posts(Europe Type)
BXA Size: The BXA size is larger than the AXA size and is suitable for medium-sized lathes with swing capacities ranging from 10 to 15 inches. The BXA toolpost has a center height of 0.75 inches and accepts tool holders with a maximum height of 0.75 inches. It provides increased tool capacity and stability compared to the AXA size.
CXA Size: The CXA size is larger than the BXA size and is designed for larger lathes with swing capacities ranging from 13 to 18 inches. The CXA toolpost has a center height of 1 inch and accepts tool holders with a maximum height of 1 inch. It offers even greater tool capacity and stability, making it suitable for heavy-duty machining operations.
CA Size: The CA size, also known as the "Super Size" or "Giant" size, is the largest quick change toolpost size available. It is designed for extra-large lathes with swing capacities ranging from 17 inches and above. The CA toolpost has a center height of 1.75 inches and accepts toolholders with a maximum height of 1.75 inches. This size provides maximum tool capacity and stability for large-scale machining tasks.
It's important to note that the sizes mentioned above are just general guidelines, and the actual dimensions of quick change toolposts may vary depending on the manufacturer and specific lathe model. When selecting a quick change toolpost, it is crucial to refer to the lathe's specifications and the manufacturer's recommendations to ensure compatibility.
In addition to the toolpost size, it's also essential to consider the size and type of tool holders compatible with the quick change toolpost. Toolholders come in different sizes to accommodate various tool sizes, such as 3/8 inch, 1/2 inch, or 5/8 inch. Quick change toolposts typically feature a clamping mechanism that securely holds the toolholders in place.
When purchasing a quick change toolpost, it's recommended to buy a complete set that includes the toolpost itself, multiple toolholders of different sizes, and a tightening wrench or key for securing the toolholders. This ensures that you have all the necessary components for quick and efficient tool changes on your lathe.
In summary, quick-change toolposts come in various sizes to accommodate different lathe models and tool sizes. The most common sizes include AXA, BXA, CXA, and CA. Selecting the appropriate size toolpost is crucial for ensuring compatibility and optimal performance. When choosing a quick change toolpost, it's important to refer to the lathe's specifications and the manufacturer's recommendations to make the right selection.
