SK50-ER40 Tool Holder, CNC Lathe Chuck with 7:24 Taper Accuracy collet chuck cnc lathe chuck

CNC Lathe Chuck ER Collet SK collet chuck SK50-ER40 tool holder , SK tooling is symmetrical about the spindle axis. This gives SK tooling greater stability and balance at high speeds. SK tool holders will accept both imperical and metric sized tools, BT tooling looks very similar and can easily be confused with CATEE tooling. The difference between CATEE and SK is the flange style, thickness, and the thread for the pull stud is a difference size. SK tool holders use metric thread pull stud. We have G6.3 rpm 12000-16000 and G2.5 rpm 18000-25000.

1. The taper accuracy of tool shank 7:24 is less than AT3 and part of the standard sizes have been inspected in the last time by standard checking fixtures manufactured in Germany.
2. The inner cone is tested by standard pneumometer. The contact area ratio of large end is over 90%.
3. The inner cone runout of the tool handle body is less than 0.002.
4. Coaxiality of tool handle, with 0.005mm/0.008mm clamp, the high point of comprehensive accuracy is not more than 0.005mm/0.008mm.
5. The grade of handle threads and nut threads is 4H. All ends are open and stop.
6. Dynamic balance: G6.3 12000/18000 RPM G2.5 15000/20000 RPM can be made according to demand. It can also be customized according to customer's needs.
7. Spring Collet Chuck Material: 20CrMnTi.
8. ER Collet Chuck Hardness: HRC 56 degree-60 degree.
9. Carburizing depth: > 0.8.
10, -185C degree cryogenic treatment, 20 hours thermal aging.
11. SK Tool Holder Appearance finishing electroless nickel plating improves corrosion resistance, wear resistance and corrosion resistance, and achieves better anti-rust effect.

SK ER collet chuck is a type of tool holder commonly used in milling machines and CNC machines. It is designed to securely hold cutting tools such as end mills, drills, and reamers. The SK ER collet chuck uses a collet system, which consists of a tapered sleeve and a collet nut, to clamp and grip the tool. The chuck is inserted into the machine's spindle and tightened to hold the tool in place. SK ER collet chucks are known for their high precision and rigidity, making them suitable for appliCATEEions that require accuracy and repeatability. They are available in various sizes and can accommodate different collet sizes to match the tool diameter.