Röhm Main Catalogue Clamping Technology Page 592
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Power chucks with quick jaw change system DURO-NCSE - individual jaw unlocking APPLICATION Premium power chuck with through-hole for flexible use thanks to quick jaw change system for maximum speeds. TYPE Power chuck available with cylindrical centre mount or short taper mount. 3-jaw version. CUSTOMER BENEFITS Easy handling of the jaw change thanks to individual jaw unlocking Universal: jaws can be offset, exchanged or turned For very high speeds - low centrifugal force losses thanks to low jaw weights and wedge bar construction High clamping precision and clamping force thanks to rigid chuck construction Large through-hole for hollow or partially hollow clamping TECHNICAL FEATURES - Power transmission by means of wedge bar system The toothing of the wedge bar always engages completely in the jaw Base jaws with straight teeth Note: The safety key can only be pulled out once the jaws are locked. This setup in combination with the key switch integrated in the machine also prevents the machine spindle from starting up unintentionally when the jaws are unlocked. Included in the scope of delivery: Chuck, chuck and jaw mounting screws, base jaws, safety wrench, mounting wrench NCSE = NC machine, quick, individual jaw unlocking Gripping force / speed diagram 200 The loss of gripping force was determined experimentally on a chuck with matched UB top jaws. It is largely independent of the initial gripping force at zero speed. 315 140 DURO-NCSE 120 260 100 DURO-NCSE 80 215 60 DURO-NCSE 180 40 20 1000 2000 3000 4000 5000 6000 -1 -1 Speed minmin Drehzahl Quick jaw change system with individual jaw unlocking The individual locking arrangement means that handling is particularly easy with special large jaw pads when the workpiece requires them: push key till stop, then turn in arrow direction. 320 300 280 Total gripping force kN Geasamtspannkraft kN Power chuck DURO-NCSE To obtain the specified gripping forces, the chuck must be in a perfect condition and lubricated with F 80 lubricant recommended by RÖHM. Measuring point near chuck face. DURO-NCSE 160 Total gripping force kNkN Geasamtspannkraft Curve: max. centrifugal force of top jaw 180 260 DURO-NCSE 500 DURO-NCSE 630 240 220 DURO-NCSE 400 200 180 1000 2000 -1 -1 Speed minmin Drehzahl 6078 www.eshop.roehm.biz 3000 4000
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