ATLASCHUCKS.Com
Quality Precision Atlas Workholding Scroll Chucks, Power Chucks,  and Collet Chucks

Call or Email for competitive pricing and expert consultation
Email:  workholding@hotmail.com
Phone:  888-869-2424
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Large Closed Center Adjustable Jaw Power Chucks for Vertical and Horizontal Lathes 
 

40 - 79 inches

  • Ideal for Large vertical and Horizontal Lathe applications
  • Universal Wedge Design with manually adjustable Master Jaws
  • Available in 3, 4 and 6-Jaw configurations
  • Sealed front Master Jaw design for Vertical Use
  • High Speed Design
  • Available Mountings Straight Recess and ‘A’ Type Spindles
  • Contact Factory for application expertise and quotation
MODEL V-240 VIT-240 V-250 VIT-250 VE-250 VIT-263 VE-263 VE-279
Number of Jaws 3 4 3 4 6 4 6 6
Plunge Stroke (in) 2.244 2.244 2.244 2.244 2.244 2.362 2.362 2.362
Radial Jaw Stroke 
(+ Manual Setting) (in)		 .90+1.18 .90+1.18 .90+1.18 .90+1.18 .90+1.18 1.34+1.57 1.34+1.57 1.34+1.57
Pull Force (lbf) 40465 40465 40465 40465 40465 44961 44961 44961
Grip Force (lbf) 71938 71938 71938 71938 71938 80931 80931 80931
Oper. Pressure (psi) 610 610 610 610 610 670 670 670
Max. Speed (rpm) 630 550 500 400 360 300 280 230
Weight (lbs) 1422 1544 1962 2073 2140 3748 3969 6284
Mount of Inertia (kg-m2) 82 89 168 177 183 518 548 1350
Matching Cylinder ALT250C ALT250C ALT250C ALT250C ALT250C ALT250C ALT250C ALT250C
Grip O.D. Range (in) 11.22-38 11.22-38 10.63-47 10.63-47 10.63-47 15.35-61 15.35-61 17.32-76

Dimensional Data  (in inches)
Dimensional Data (in inch)
Model A B C D Max H J K L M
40" V/VIT-240" 39.56 7.086 20.47 19.76 18.25 4.25 M24 M52x1.5 0.315
50" V/VIT/VE-250" 49.21 7.068 20.47 24.53 18.25 4.25 M24 M52x1.5 0.315
63" VIT/VE-263" 63 8.661 28.34 31.34 25.49 5.67 M30 M52x1.5 0.315
79" VE-279" 78.74 9.37 28.34 39.21 25.49 5.67 M30 M52x1.5 0.315
Dimensional Data (in inch)
Model N Max. O P Max. P Min. Q R S T U
40" V/VIT-240" 17.992 1.181 2.323 0.078 0.157 7-M24 0.748 3.346 2.834
50" V/VIT/VE-250" 22.165 1.181 2.323 0.078 0.157 10-M24 0.748 3.346 2.834
63" VIT/VE-263" 29.055 1.575 3.228 0.866 0.236 13-M24 0.866 4.331 2.834
79" VE-279" 35.984 1.575 3.937 0.866 0.236 17-M24 0.866 4.331 2.834

QCS Workholding LLC
18611 West Windhaven Terrace Trail
Cypress Texas  77433
Email:  workholding@hotmail.com
Phone:  888-869-2424