JNC Series Light weight Compact Suitable for small-sized machining centers Accurate indexing Accurate indexing is available by durable worm wheel of special alloy. Outstanding water protection Auto-Air Purging system (PAT.) is built in as standard and effects against coolant outstandingly. ■ Easy jig designing　 ■ Easy maintenance Unit:mm Model Right Handed JNC140R JNC170R JNC200R JNC250R Left Handed JNC140L JNC170L JNC200L JNC250L Table diameter 140 170 200 250 Center height 110 135 160 200 Table faucet diameter 40H7 depth 10 60H7 depth 10 70H7 depth 10 90H7 depth 10 Table center through hole diameter 28 45 56 72 Clamp system Air pressure (0.5 ～ 0.7Mpa) Clamp torque (N･ｍ) 120 (0.5MPa) 230 (0.5MPa) 450 (0.5MPa) 650 (0.5MPa) Indexing accuracy (Cumulative) Within 40 seconds Within 30 seconds Allowable operation load (N) Vertical load 4,000 5,000 7,000 8,000 Horizontal load 2,000 3,000 4,000 5,000 Circumferential load 2,000 1,700 2,600 3,500 Allowable inertia Moment (kg･m²) During vertical use 0.25 0.5 1.0 2.0 During horizontal use 0.125 0.25 0.5 1.0 Total reduction ratio 1/72 1/90 1/90 1/90 Maximum rotation (min-1 ) 41.6 33.3 33.3 33.3 Guide piece width 14h7 14h7 18h7 18h7 Weight (kg) 27 38 58 86 * Guide piece (2pcs), Fixtures (2sets), Air tube (5m) for table clamping are attached. * Corresponding to Controller for CNC rotary table or to motor for additional axis.