Đầu kẹp BT là một trong những loại đầu kẹp dao phổ biến trong ngành gia công cơ khí chính xác CNC, là bộ phận kết nối mũi khoan, dao phay, mũi doa, taro với trục chính của máy gia công. Đặc điểm của đầu kẹp BT là có phần chuôi côn để lắp lên trục chính máy, phần kẹp dao thường dùng cơ cấu kẹp collet. Để đạt được chất lượng gia công, đầu kẹp BT cần đạt được độ cân bằng cao khi trục chính quay, cũng như lực kẹp dao cần đủ lớn để gia công ổn định.

Hệ thống bầu kẹp BT30 / BT40 / BT50 của Big Daishowa với dải kẹp dao rộng, lực kẹp lớn, ổn định cho gia công cơ khí chính xác. Để được tư vấn nhiều hơn về các dòng đầu kẹp BT Big Daishowa, quý khách vui lòng liên hệ với game đánh bài online – Đại lý ủy quyền Sumitomo tại Việt Nam. Hotline 0945 275 870, Email [email protected].

THÔNG SỐ KỸ THUẬT ĐẦU KẸP BT BIG DAISHOWA

BT SHANK Model	Clamping diameter ød	øD	L	L1	H	Collet Model	Weight (kg)
BT30-NBS 6-45	0.25 – 6	20	45	20	20 – 40	NBC 6-☐	0.41
BT30-NBS 6-60			60	32			0.44
BT30-NBS 6-75			75	47			0.47
BT30-NBS 6-90			90	62			0.51
BT30-NBS 6-105			105	77			0.54
BT30-NBS 6-120			120	90			0.57
BT30-NBS 6-135			135	105			0.60
BT30-NBS 8-45	0.5 – 8	25	45	20	23 – 42	NBC 8-☐	0.42
BT30-NBS 8-60			60	33			0.46
BT30-NBS 8-75			75	48			0.50
BT30-NBS 8-90			90	63			0.55
BT30-NBS 8-105			105	78			0.61
BT30-NBS 8-120			120	92			0.66
BT30-NBS 8-135			135	107			0.70
BT30-NBS10-45	1.5 – 10	30	45	20	35 – 45	NBC10-☐	0.44
BT30-NBS10-60			60	34			0.51
BT30-NBS10-75			75	49			0.58
BT30-NBS10-90			90	64			0.66
BT30-NBS10-105			105	79			0.74
BT30-NBS10-120			120	94			0.81
BT30-NBS10-135			135	109			0.88
BT30-NBS13-45	2.5 – 13	35	45	21	41 – 53	NBC13-☐	0.39
BT30-NBS13-60			60	34	41 – 60		0.50
BT30-NBS13-75			75	49			0.61
BT30-NBS13-90			90	64			0.72
BT30-NBS13-105			105	79			0.83
BT30-NBS13-120			120	94			0.93
BT30-NBS13-135			135	109			1.02
BT30-NBS16-45	2.5 – 1.6	42	45	21	45 – 53	NBC16-☐	0.39
BT30-NBS16-60			60	37	45 – 65		0.53
BT30-NBS16-75			75	52			0.67
BT30-NBS16-90			90	67			0.81
BT30-NBS16-105			105	82			0.95
BT30-NBS16-120			120	97			1.10
BT30-NBS16-135			135	112			1.25
BT30-NBS20-60	2.5 – 20	46	60	38	48 – 58	NBC20-☐	0.55
BT30-NBS20-75			75	53	48 – 65		0.73
BT30-NBS20-90			90	68			0.90
BT30-NBS20-105			105	83			1.08
BT30-NBS20-120			120	98			1.26
BT30-NBS20-135			135	113			1.45

 

BT SHANK Model	Clamping diameter ød	øD	L	L1	H	Collet Model	Weight (kg)
BT40-NBS 6-60	0.25 – 6	20	60	23	20 – 40	NBC 6-☐	1.1
BT40-NBS 6-75			75	38			1.2
BT40-NBS 6-90			90	53			1.2
BT40-NBS 6-105			105	68			1.3
BT40-NBS 6-120			120	83			1.3
BT40-NBS 6-135			135	98			1.3
BT40-NBS 6-165			165	128			1.4
BT40-NBS 6-200			200	158			1.5
BT40-NBS 8-60	0.5 – 8	25	60	23	23 – 42	NBC 8-☐	1.1
BT40-NBS 8-75			75	38			1.2
BT40-NBS 8-90			90	53			1.2
BT40-NBS 8-105			105	68			1.3
BT40-NBS 8-120			120	83			1.3
BT40-NBS 8-135			135	98			1.3
BT40-NBS 8-165			165	128			1.4
BT40-NBS 8-200			200	158			1.5
BT40-NBS10-60	1.5 – 10	30	60	23	35 – 45	NBC10-☐	1.1
BT40-NBS10-75			75	38			1.2
BT40-NBS10-90			90	53			1.2
BT40-NBS10-105			105	68			1.3
BT40-NBS10-120			120	83			1.4
BT40-NBS10-135			135	98			1.5
BT40-NBS10-165			165	128			1.7
BT40-NBS10-200			200	163			1.9
BT40-NBS13-60	2.5 – 13	35	60	28	41 – 60	NBC13-☐	1.2
BT40-NBS13-75			75	40			1.3
BT40-NBS13-90			90	55			1.4
BT40-NBS13-105			105	70			1.5
BT40-NBS13-120			120	85			1.6
BT40-NBS13-135			135	100			1.7
BT40-NBS13-165			165	128			1.9
BT40-NBS13-200			200	163			2.2
BT40-NBS16-60	2.5 – 16	42	60	27	45 – 65	NBC16-☐	1.2
BT40-NBS16-75			75	40			1.4
BT40-NBS16-90			90	55			1.5
BT40-NBS16-105			105	70			1.7
BT40-NBS16-120			120	85			1.8
BT40-NBS16-135			135	100			1.9
BT40-NBS16-165			165	130			2.2
BT40-NBS16-200			200	165			2.6
BT40-NBS20-60	2.5 – 20	46	60	28	48 – 65	NBC20-☐	1.2
BT40-NBS20-75			75	42			1.4
BT40-NBS20-90			90	57			1.5
BT40-NBS20-105			105	72			1.7
BT40-NBS20-120			120	87			1.9
BT40-NBS20-135			135	102			2.1
BT40-NBS20-165			165	132			2.5
BT40-NBS20-200			200	167			3.0

 

BT SHANK Model	Clamping diameter ød	øD	L	L1	H	Collet Model	Weight (kg)
BT50-NBS 6-90	0.25 – 6	20	90	42	20 – 40	NBC 6-☐	3.9
BT50-NBS 6-120			120	67			4.0
BT50-NBS 6-165			165	112			4.1
BT50-NBS 6-200			200	147			4.2
BT50-NBS 8-90	0.5 – 8	25	90	42	23 – 42	NBC 8-☐	4.0
BT50-NBS 8-120			120	67			4.1
BT50-NBS 8-165			165	112			4.2
BT50-NBS 8-200			200	147			4.3
BT50-NBS10-90	1.5 – 10	30	90	42	35 – 45	NBC10-☐	4.0
BT50-NBS10-120			120	67			4.1
BT50-NBS10-165			165	112			4.4
BT50-NBS10-200			200	147			4.6
BT50-NBS10-250			250	197			4.9
BT50-NBS10-300			300	247			5.2
BT50-NBS13-90	2.5 – 13	35	90	42	41 – 60	NBC13-☐	4.2
BT50-NBS13-120			120	67			4.4
BT50-NBS13-165			165	112			4.7
BT50-NBS13-200			200	147			5.0
BT50-NBS13-250			250	197			5.4
BT50-NBS13-300			300	247			5.8
BT50-NBS16-75	2.5 – 16	42	75	29	45 – 65	NBC16-☐	4.0
BT50-NBS16-90			90	44			4.1
BT50-NBS16-120			120	72			4.4
BT50-NBS16-165			165	117			4.8
BT50-NBS16-200			200	152			5.2
BT50-NBS16-250			250	202			5.7
BT50-NBS20-75	2.5 – 20	46	75	31	48 – 65	NBC20-☐	4.0
BT50-NBS20-90			90	42			4.2
BT50-NBS20-120			120	72			4.5
BT50-NBS20-165			165	117			4.9
BT50-NBS20-200			200	152			5.3
BT50-NBS20-250			250	202			5.9

 

[S Type] Slim nut to avoid interference       BIG-PLUS (BBT Shank) tools can be used on both BIG-PLUS spindles and conventional BT spindles.

BIG-PLUS BBT SHANK Model	BT SHANK Model	Fig.	ød	øD	L	L1	Tool adjustment amount H	Min. clamping length		Wrench	Weight (kg)
								E	E1
BBT30-HMC16S-70	BT30-HMC16S-70	1	16	43	70	47	71	48	55	FK45-50L	0.78
BBT30-HMC20S-75	BT30-HMC20S-75	2	20	50	75	–	56 – 66	50	56		0.93
BBT30-HMC25S-90	BT30-HMC25S-90		25	55	90	–	64 – 74	56	57	FK52-55	1.12
BBT30-HMC32S-105	BT30-HMC32S-105		32	62	105	–	70 – 80	60	58	FK58-62L	1.41
BBT40-HMC16S-75	BT40-HMC16S-75	1	16	43	75	45	71	48	55	FK45-50L	1.3
BBT40-HMC16S-120	BT40-HMC16S-120				120	90					1.8
BBT40-HMC20S-75	BT40-HMC20S-75	1	20	50	75	46	69 – 79	50	56		1.4
BBT40-HMC20S-105	BT40-HMC20S-105				105	75					1.9
BBT40-HMC20S-120	BT40-HMC20S-120				120	90					2.1
BBT40-HMC25S-75	BT40-HMC25S-75	1	25	59	75	47	73 – 83	56	57	FK58-62L	1.5
BBT40-HMC25S-105	BT40-HMC25S-105				105	77					2.1
BBT40-HMC25S-120	BT40-HMC25S-120				135	107					2.8
BBT40-HMC32S-90	BT40-HMC32S-90	2	32	68	90	–	71 – 81	60	64	FK68-75L	2.0
BBT40-HMC32S-105	BT40-HMC32S-105				105	–	79 – 89				2.3
BBT40-HMC32S-135	BT40-HMC32S-135				135	–					3.0

 

[Standard Type]        BIG-PLUS (BBT Shank) tools can be used on both BIG-PLUS spindles and conventional BT spindles.

BIG-PLUS BBT SHANK Model	BT SHANK Model	ød	øD	L	Tool adjustment amount H	Min. clamping length		Wrench	Weight (kg)
						E	E1
BBT50-HMC20-105	BT50-HMC20-105	20	60	105	69 – 79	50	55	FK58-62	4.7
BBT50-HMC20-135	BT50-HMC20-135			135					5.4
–	BT50-HMC20-165			165					6.1
BBT50-HMC25-105	BT50-HMC25-105	25	62	105	74 – 84	56	56		4.6
BBT50-HMC25-135	BT50-HMC25-135			135					5.3
–	BT50-HMC25-165			165					5.9
BBT50-HMC32-105	BT50-HMC32-105	32	80	105	78 – 95	60	71	FK80-90	5.2
BBT50-HMC32-135	BT50-HMC32-135			135					6.3
–	BT50-HMC32-165			165					7.5
BBT50-HMC42-105	BT50-HMC42-105	42	99	105	93 – 105	70	73	FK92-100	6.0
BBT50-HMC42-135	BT50-HMC42-135			135					7.5
–	BT50-HMC42-165			165					8.8

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