170 SMW-AUTOBLOK 466 SMW-AUTOBLOK 172 SMW-AUTOBLOK 327 170 215 FG F 115 100 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 140 160 180 210 5000 FG F NT-RD 170 NT-RC 170 NT-RD 215 NT-RC 215 NT-RD 260 NT-RC 260 NT-RD 315 NT-RC 315 NT-RD 400 NT-RC 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 77188317 77188321 77188326 77188331 77188340 77183317 77183321 77183326 77183331 77183340 NT-RC NT-RD Quick jaw change high precision power chuck Ø 170 - 400 mm Actual gripping force diagrams Technical data FG Gripping force (total on 3 jaws) (kN) FG Gripping force (total on 3 jaws) (kN) Speed (r.p.m.) 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 Id.-No. NT-RC (Center mounting) Id.-No. NT-RD (Center mounting) Speed (r.p.m.) 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. Safety advice / danger of damage: When using taller / heavier jaws and / or clamping on a bigger diameter reduce draw pull / rotating speed accordingly. Application/customer benefits • For mid to large batches flexible production / high speed machining and for fragile parts • Quick jaw change = short set up time • Fully sealed, ideal for dry machining of castings and forgings or if high pressure coolant is used • Ideal for vertical, pick up and horizontal machines NT-RC: Quick jaw change with TONGUE & GROOVE master jaws NT-RD: Quick jaw change with serrated master jaws (2.5 mm x 60°) (radially adjustable) Technical features • High accuracy patented quick jaw change • Centrifugal force compensation • Constant gripping force with permanent grease lubrication • Central 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 1 set soft top jaws 1 quick jaw change wrench Mounting bolts 3-jaw chuck NT-RC 215 / A6 or 3-jaw chuck NT-RD 260 / Z220 Quick jaw change TONGUE & GROOVE Quick jaw change SERRATION ■ Centrifugal force compensation ■ 3 jaws, closed center ■ proofline® chucks = fully sealed – low maintenance * For internal clamping reduce the draw pull by 30%. fully sealed – low maintenance proo ine® series 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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