CAPACITY Max. swing over bed 16-1/8" (410 mm) Max. swing over cross-slide 9-7/16” (240 mm) Max. swing in gap 23-7/16” (595 mm) Width of bed 11-3/4" (298 mm) Max. distance between centers: 1640S 40” (1,000 mm), 1660S 60” (1,500 mm)
HEADSTOCK Spindle bore diameter 2-1/32" (52 mm) Spindle bore taper M.T. No. 6 Taper of center in sleeve M.T. No. 4 Spindle nose D1-6 Camlock Number of spindle speeds 12 steps Range of spindle speeds 30 ~ 2,000 rpm
THREADS AND FEEDS Number of cross and longitudinal feeds 40 Range of longitudinal feeds 0.0012"~0.0252"/rev. (0.032~0.898 mm/rev.) Range of cross feeds 0.0006"~0.0126"/rev. (0.016~0.449 mm/rev.) Whitworth threads per inch 2-56 TPI x 40 Kinds Metric Thread 0.4-14 mm x 52 Kinds Diametral threads 4-32 D.P. x 32 Kinds Module threads 0.4-7 M.P. x 44 Kinds
TAILSTOCK Tailstock spindle diameter 2-1/8” (54 mm) Max. tailstock spindle travel 4-3/4” (120 mm) Tailstock spindle bore taper M.T. No. 4
POWER Main Motor 7-1/2 HP 3 PH Coolant Pump 1/8 HP 3PH
MACHINE DIMENSIONS Gross machine weight (approx.) 1640S 4,290 lb. (1,950 kg); 1660S 4,950 lb. (2,250 kg) Packing measurement (approx.) 1640S 89" x 38" x 65" (2,260 x 970 x 1,650 mm) 1660S 110" x 38" x 65" (2,800 x 970 x 1,650 mm)
