Short Collet Chuck

The High Precision Collet Chuck JIS B 6339-2 BT is the collet chuck for the highest machining capacity in high-speed manufacturing. The universal High Precision Collet Chuck is a unique high performance chuck that can also be used with standard collets. High runout accuracy of 0.003 mm at 3 × D is possible to achieve in the short collet chuck without developing any deflection. For standard collets ER according to ISO 15488 (Please note when use with standard ER collets the gage length A will vary compared to A dimension given below). The short collet chuck is designed and manufactured to deliver high rigidity.

These chuck enables smoother running thanks to vibration absorbing geometry, therefore better surface quality and protection of tools, spindles and machines. These collet chucks have increased machining capacity due to higher spindle speeds, higher feed rates and larger cutting depths. Short collet chucks are highly preferred as they have shorter processing times, higher machining accuracy and high clamping force. These short collets are suitable for operating high-speed manufacturing and heavy milling. The chucks are manufactured with threaded holes in order to balance with balancing screws.

BT 40 Form AD BT 50 Form AD Spares

BT 40 Form AD

Part No.	Product Name	Taper	Form	Size	Champing Range	L	Nut	D	Kgs	Group
F1B401A-ERS32033	BT40 AD ER 32 033	40	AD	ER32	33	2-20	F15500-32SER	M40x1.5	1.0	A

BT 50 Form AD

Part No.	Product Name	Taper	Form	Size	L	Champing Range	D	Nut	Group	Kgs
F1B501A-ERS32040	BT50 AD ER 32 040	50	AD	ER32	40	2-20	M40X1.5	F15500-32SER	A	3.2
F1B501A-ERS40045	BT50 AD ER 40 045	50	AD	ER40	45	3-26	M50X1.5	F15500-40SER	A	3.2

Spares

Part No.	Product Name	G	L
F15500-32SER	SHORT NUT SER32	M40X1.5	14
F15500-40SER	SHORT NUT SER40	M50X1.5	20

Accessories

Pre balanced G6.3@15000 RPM
Fine balancing G2.5@25000 RPM on request