Precision Rotary 
Yukiwa precision rotary tables and index tables are high-speed indexing tables which have the built-in precision couplings. They are most suitable for precision machining for the automobile parts, etc., interlocking with the machining centers and the special purposes machines.
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Precise indexing3layer type coupling is built in and the cumulative indexing accuracy is within 10 seconds.
High rigidityThe coupling is engaged with the strong clamping force, which achieve the high rigidity to endure the cutting force.
Outstanding water protectionThe leak-proof structure keeps coolant from entering inside. |
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■ Strong clamping ■ High rigidity bearing structure
■ Non-lift table structure ■ Easy jig designing
Unit:mm
| Model | CTA350 | CTA500 | |
| Table diameter | 350 | 500 | |
| Table faucet hole diameter | 70H7 depth 10 | 110H7 depth 12 | |
| Table center through hole diameter | 46 | 90 | |
| Table face height | 200 | 260 | |
| Driving AC servo-motor | 1kW (FANUC αiF4 or equivalent) | 2kW (FANUC αiF12 or equivalent) | |
| Number of divisions | Equal or unequal division by 5°unit | ||
| Indexing accuracy (Cumulative) | Within 10 seconds | ||
| Total reduction ratio | 1/72 | ||
| Maximum rotation (min-1) | 25 (motor spindle 1,800min−1) | ||
| Indexing time | 1.05 sec. (90°) | 1.60 sec. (90°) | |
| Clamp system | Air pressure (0.5 〜 0.7Mpa) | ||
| Clamp torque (N･ｍ) | 950 (0.5MPa) | 2,900 (0.5MPa) | |
| Allowable inertia moment (kg･m²) | 5.0 | 37.5 | |
Allowable operation load (N) |
Vertical load | 20,000 | 20,000 |
| Horizontal load | 7,000 | 10,000 | |
Circumferential load |
5,500 | 11,000 | |
| Controller | AC4-30 | AC2-120 | |
| Weight (kg) | 146 | 380 | |
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| * | Corresponding to Controller for CNC rotary table or to motor for additional axis. |
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Precise indexing3layer type coupling is built in and the cumulative indexing accuracy is within 5 seconds.
High rigidityThe coupling is engaged by strong clamping force, which achieves the high rigidity to endure the cutting force.
Strong clampingThe coupling is engaged by strong clamping force with the hydraulic clamp system and the jig and work-piece are held firmly.
Outstanding water protectionThe leak-proof structure keeps coolant from entering inside. |
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| CTW400 | ||
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| CTW800V |
■ High rigidity bearing structure ■ Non-lift table structure ■ Easy jig designing
Unit:mm
| Model | 1°unit type | ― | ― | CTW 400V-360 |
CTW 500V-360 |
CTW 630V-360 |
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| 5°unit type | CTW 320 -72 |
CTW 400 -72 |
CTW 400V -72 |
CTW 500V -72 |
CTW 630V -72 |
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| Mounting direction | Both vertical and horizontal |
Vertical only | |||||
| Table diameter | 320 | 400 | 400 | 500 | 630 | ||
| Center height | 200 | 260 | ― | ― | ― | ||
| Table faucet hole diameter | 46H7 | 60H7 | 60H7 | 80H7 | 80H7 | ||
| Table center hole diameter | 41 | 51 | 51 | 72 | 72 | ||
| Table T-slot width | 14H8 | 14H8 | ― | ― | ― | ||
| Indexing accuracy (Cumulative) | Within 5 seconds | ||||||
| Table rotating torque (N･ｍ) | 120 | 170 | 170 | 350 | 800 | ||
| Clamp torque (N･ｍ) | 5,000 | 7,000 | 7,000 | 9,000 | 20,000 | ||
| Clamping oil supply source | Regular 3Mpa, Maximum 3.5Mpa | ||||||
| Necessary amount of oil supply | 10L/min | 15L/min | 15L/min | 20L/min | 20L/min | ||
Allowable inertia moment (kg･m²) |
During vertical use |
5 | 18.75 | 18.75 | 47.5 | 75 | |
During horizontal use |
3 | 11.25 | ― | ― | ― | ||
Allowable operation load |
Vertical load (N) |
6,000 | 7,000 | 7,000 | 8,000 | 26,000 | |
Horizontal load (N･ｍ) |
6,000 | 8,000 | 8,000 | 10,000 | 30,000 | ||
Circumferential load (N･ｍ) |
8,000 | 10,000 | 10,000 | 15,000 | 35,000 | ||
| Weight (kg) | 200 | 350 | 350 | 450 | 980 | ||
| * | Corresponding to Controller for CNC rotary table or to motor for additional axis. |