Home>News>Analyze the meaning of BT30 tool holder and why it is called BT30 toolholder
March 09, 2023
Analyze the meaning of BT30 tool holder and why it is called BT30 toolholder
BT30 is a taper type of TOOL HOLDER. MAS BT (Japanese standard) 7:24 taper universal toolholder, usually has five standards and specifications, namely NT (traditional type), DIN 69871 (German standard), IS0 7388/1 (international standard), MAS BT (Japanese standard) and ANSI/ASME (American standard).
BT30 Interpretation
1.30 refers to the tool shank diameter model.
2. When BT30 is 7:24, the maximum diameter of the taper part of the tool shank is 31.75mm, and the maximum diameter of the tool shank is 46mm
3.30 is the taper, and the formula is C (taper)=(D-d)/L, where D is the diameter of the lower disc mouth of the tool handle, d is the diameter of the upper port, and L is the height of the cone table.
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