Röhm KFD-HS

Power Chucks with Through-hole
KFD-HS - optimized
centrifugal forces

APPLICATION
Premium power chucks with through-hole for maximum speeds and optimized
centrifugal forces.

TYPE
Power chuck available with cylindrical centre mount or short taper mount.
3-jaw version with serration (90°) or tongue and groove.
2-jaw version with serration (90°).

TECHNICAL FEATURES
- Universal construction of the piston connection (piston does not project into the
spindle bore area, even with the piston position moved back)

- Long jaw guide
- Clamping inserts can be used for bar machining (special version)

CUSTOMER BENEFITS
» Low centrifugal force losses and high speeds thanks to special wedge hook system with annular piston
» Larger than average through-hole for wide range of workpieces
» Maximum precision thanks to rigid chuck construction
» If necessary quick conversion to a different spindle nose by simply exchanging the centering adapter

Included in the scope of delivery:
Chuck, chuck and jaw mounting screws, mounting wrench, slot nuts (without top jaws)

KFD-HS, 3-jaws, serration 90°

C15
3-jaw power chuck KFD-HS, with tightening thread, serration 90°
Cylindrical centre mount, connection dimensions in acc. with DIN 6353 / short taper mount (KK) for ISO 702-1 (DIN 55026/55021)

Item No.	149406	149405	144258	142690	143692	142478	144259▲	143893	143888	142479
Size	110	110	140	140	160	160	175	175	200	200
Number of jaws	3	3	3	3	3	3	3	3	3	3
A mm	110	110	140	140	160	160	175	175	200	200
Jaw travel B mm	3.2	3.2	3.2	3.2	4	4	4	4	5	5
C mm	78	86	88	92	102	108	102	108	107	112
Mount D	ZA 60	KK 4 ¹⁾	ZA 120	KK 5	ZA 140	KK 5	ZA 140	KK 5	ZA 170	KK 6
E mm	6	13	6	15	6	16	6	16	6	16
F mm	82.6	82.6	104.8	104.8	104.8	104.8	104.8	104.8	133.4	133.4
G	3xM10	3xM10	3xM10	3xM10	3xM10	3xM10	3xM10	3xM10	3xM12	3xM12
H mm	14	14	15	17	15	14	15	14	18	17
Wedge stroke K mm	12	12	12	12	15	15	15	15	18.5	18.5
L mm	2.5	2.5	2.5	2.5	2.5	2.5	2.5	2.5	2.5	2.5
M max. mm	26	26	37	37	46	46	56	56	66	66
M₁^H7 mm	32	32	37	37	46	46	56	56	66	66
N mm	38	38	48	48	58	58	68	68	80	80
O min.	-1	11	5	13	6	16	6	16	7.5	16.5
O max.	11	23	17	25	21	31	21	31	26	35
P mm	12	12	14	14	16	16	16	16	15	15
Q mm	M34x1.5	M34x1.5	M44x1.5	M44x1.5	M54x1.5	M54x1.5	M65x1.5	M65x1.5	M74x1.5	M74x1.5
T mm	80	84	84	90	98	106	98	106	103	110
U mm	M8	M8	M6	M6	M8	M8	M8	M8	M12	M12
a min.	10.8	10.8	16.8	16.8	24	24	29	29	35	35
a max.	14	14	20	20	28	28	33	33	40	40
b min.	3	3	0	0	0	0	0	0	8.5	8.5
b max.	23	23	26	26	22	22	24.5	24.5	32.5	32.5
c mm	15	15	2x12	2x12	2x15	2x15	2x15	2x15	19	19
d mm	41	41	50	50	52	52	54.5	54.5	60	60
e mm	24	24	25	25	32	32	32	32	40	40
fH7-0.025 mm	10	10	10	10	12	12	12	12	17	17
g mm	50	50	68	68	76	76	76	76	84	84
h	M5x8	M5x8	M5x8	M5x8	M6x10	M6x10	M6x10	M6x10	M6x10	M6x10
α	0°	0°	22° 30‘	22° 30‘	20°	20°	20°	20°	20°	20°
Max. swing top jaws mm	113	113	180	180	195	195	210	210	250	250
Maximum draw bar pull kN	18	18	25	25	35	35	40	40	48	48
Max. total clamping force kN	48	48	70	70	86	86	95	95	110	110
Max. admissible speed min^-1	8500	8500	8000	8000	8000	8000	7000	7000	6500	6500
Moment of inertia J kgm²	0.007	0.007	0.022	0.022	0.0415	0.0415	0.057	0.057	0.1	0.1
Weight without jaws approx. kg	5	5	9	9	12	12	15	15	20	20
Actuating cylinders (recommended)	OVS-85 / SZS-37/70	OVS-85 / SZS-37/70	OVS-105 / SZS-37/70	OVS-105 / SZS-37/70	OVS-105 / SZS-46/103	OVS-105 / SZS-46/103	OVS-105 / SZS-52/130	OVS-105 / SZS-52/130	OVS-130 / SZS-67/150	OVS-130 / SZS-67/150

¹⁾ ISO 702-1 (DIN 55026) only (DIN 55021 on request)

We reserve the right to make technical changes.