70 SMW-AUTOBLOK 466 SMW-AUTOBLOK 468 SMW-AUTOBLOK 327 215 170 FG F 120 100 80 60 40 20 0 1000 2000 3000 4000 5000 6000 400 315 260 120 100 80 60 40 20 0 1000 2000 3000 4000 140 160 180 220 200 5000 235 FG F NT-C 170 NT-C 215 NT-C 260 NT-C 315 NT-C 400 3 3 3 3 3 3.6 4.6 5 6.3 7 17 22 24 30 33 30 42 55 65 75 72 112 150 180 210 6500 6000 4800 4000 3200 13 25 40 68 112 0.048 0.146 0.34 0.84 2.15 SIN-S 100 SIN-S 100 / 125 SIN-S 125 / 150 SIN-S 125 / 150 SIN-S 150 / 175 77187417 77187421 77187426 77187431 77187440 NT-C TONGUE & GROOVE High precision power chuck Ø 170 - 400 mm Application/customer benefits • For large batch production • Safe clamping due to centrifugal force compensation, for high speed machining and for fragile parts • Fully sealed, ideal for dry machining of castings and forgings or if high pressure coolant is used NT-C: TONGUE & GROOVE master jaws (American Standard) Technical features • Centrifugal force compensation • Constant gripping force with permanent grease lubrication • Center bore for coolant and / or air • Chuck body and internal parts case hardened • proofline® chucks = fully sealed - low maintenance Standard equipment Ordering example 3-jaw chuck 3-jaw chuck NT-C 215 / A6 Mounting bolts Actual gripping force diagrams Technical data Speed (r.p.m.) Speed (r.p.m.) FG Gripping force (total on 3 jaws) (kN) FG Gripping force (total on 3 jaws) (kN) Safety advice / danger of damage: When using taller / heavier jaws and / or clamping on a bigger diameter reduce draw pull / rotating speed accordingly. The data in the diagrams refer to 3-jaw chucks, newly maintained according to their service manuals using SMW-AUTOBLOK K67 grease. The static and dynamic gripping forces have been measured using standard soft top jaws, placed in a position not exceeding the outer diameter of the chuck. SMW-AUTOBLOK Type Number of jaws Radial jaw stroke mm Axial piston stroke mm Max. draw pull* kN Max. gripping force* kN Max. speed r.p.m. Weight (without top jaws) kg Moment of inertia kg·m2 Recommended actuating cylinders Type Id. No. NT-C (Center mounting) ■ Centrifugal force compensation ■ Closed center ■ 3 jaws ■ proofline® chucks = fully sealed - low maintenance * For internal clamping reduce the draw pull by 30%. fully sealed – low maintenance proo ine® series on request: Tooling Standard Parts Catalog BIS Specials Website: www.bisspecials.com Email: info@bisspecials.com Tel: (0031) 0313 482566 Website: www.bisspecials.com Email: info@bisspecials.com Tel: (0031) 0313 482566
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