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Power Chucks : Ultimate Chuck™ Model UC2 B-Model

Model UC2B allows using existing custom wide top jaws

Optional master base jaws available to fit common serrated and T&G top jaws
Note: the High Performance jaw system of the UC2 is not available for the UC2B
Better for vertical lathes with O-ring seal to prevent coolant entering between drawtube and spindle bore

Full custom packages installed on your lathe by ATS engineers
Two year warranty with ATS installation
Womb-to-tomb support by local ATS Service Engineer
Optional High-Low hydraulic systems available



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Dimensional Drawing

Model UC2 B		210-52	265-77	315-104	400-128	500-155	630-167

Nominal Chuck Size		8"	10"	12"	16"	20"	25"
Chuck outside diameter	A	8.27	10.43	12.40	15.75	19.69	24.80
Through Hole	B	2.05	3.03	4.09	5.04	6.10	6.57
	C	4.53	5.35	5.89	5.89	7.24	7.07
Direct mount spindle sizes		A6, A8	A6,A8	A8,A11	A11, A15	A11, A15	Z-520
Max. Thread with adapter	D	M60	M85	M110	M138	M175	M180
	E MAX	1.56	2.00	2.36	3.40	3.97	4.74
	F	3.39	4.17	4.53	5.83	6.53	7.99
Piston Stroke - max.		0.79	1.10	1.10	1.18	1.38	1.57
Stroke per jaw - max.		0.25	0.35	0.36	0.39	0.45	0.50
Most common Japanese		0.75	0.91	0.91	0.91	1.38	1.38
Stroke per jaw common	NOTE	0.24	0.28	0.30	0.30	0.45	0.43
Jaw adj pitch		0.189	0.216	0.216	0.216	0.275	0.275
Drawbar pull - max.	LBS	11240	16410	22480	29900	39000	39000
Total grip force	LBS	21357	30350	40466	53959	68000	68000
Max RPM - UC2		3500	3000	2800	2450	1400	1000
Weight w/out jaws		53	106	134	269	518	926