Products
KFD Automatic Index Chuck
Category:
Used for the automatic efficient process of shaft parts and flange parts of right Angle, 45 ℃, 45 ℃, 60 ℃ , 90 ℃ , 120 ℃ and 180 ℃ .
Processing of mass parts with high indexable precision, such as valve body, cross shaft, pipe fittings(elbow and tee).
The indexing mechanism is hydraulic (ensuring strong clamping and being adjustable).
ZL 2014 1 0653828.7Keywords: KFD Automatic Index Chuck
Product Description
Installation and connection diagram for automatic index chuck.

Technical characteristics
Trisection, quartering swap function (one unit can realize two functions).
Single-setup clamping can complete the machining of multiple work surfaces, directly increasing machining efficiency by a factor of 6 to 10.
High positioning precision and repeated positioning precision.
The long-term lubrication characteristics of internal components ensure reliable indexing performance and an anti-jamming system.
Control is continuous and automatic, and processing is very safe.
The workpiece clamping is high-speed and rigid, allowing for large cutting depths.
The centrifugal force compensation system (to be confirmed upon ordering).
Indexing position to level monitoring system (confirm when ordering).
Special function
After quenching and grinding, the design of deformation resistance can effectively ensure the stiffness and precision.
During spindle indexing, indexing operations can be performed, and rapid switching among multiple work spindles is permitted.
The indexing and holding mechanism features continuous oil lubrication and is supported by high-performance imported bearings.
To achieve higher production efficiency, the centrifugal force compensation system is adopted under the high limit speed.
The hydraulic system is very simple, consisting of only four oil lines—two for the indexing mechanism and two for the holding mechanism.
Control the workpiece’s machining position and other parameters continuously and automatically via the lathe’s CNC system or an independent electrical control interface.
The internal mechanism is completely sealed to fully prevent the ingress of cutting fluid contaminants, waste, and dust.
Small parts

Medium parts

Large parts

Performance parameters
Can achieve indexing angles of 4×90°, 8×45°, 3×120°, 6×60°, and custom angles.
| Dim/Spec | KFD-168 | KFD-210 | KFD-235 | KFD-250 | KFD-280 | KFD-315 | KFD-360 | KFD-400 | KFD-460 | KFD-570 | KFD-680 | ||
| A | mm | 172 | 215 | 235 | 254 | 275 | 315 | 360 | 400 | 460 | 570 | 680 | |
| B | mm | 140 | 170 | 170 | 220 | 220 | 220 | 220 | 300 | 300 | 380 | 380 | |
| C | mm | 104.8 | 133.4 | 133.4 | 171.4 | 171.4 | 171.4 | 171.4 | 235 | 235 | 330.2 | 330.2 | |
| D | mm | 11 | 13 | 13 | 17 | 17 | 17 | 17 | 21 | 21 | 27 | 27 | |
|
The maximum axial loading window |
G | mm | 125 | 175 | 197 | 216 | 239 | 261 | 301 | 333 | 395 | 466 | 576 |
| H | mm | 152 | 180 | 190 | 210 | 218 | 235 | 260 | 291 | 321 | 435 | 485 | |
| I | mm | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 5 | 5 | |
| P | mm | 30 | 35 | 35 | 44 | 45 | 50 | 50 | 58 | 58 | 85 | 85 | |
| Q | mm | 46 | 95 | 102 | 112 | 125 | 136 | 150 | 170 | 200 | 270 | 320 | |
| R | mm | 33 | 48 | 40 | 46 | 58 | 82 | 100 | 110 | 140 | 180 | 235 | |
| T | mm | 33 | 36 | 53 | 56 | 70 | 66 | 88 | 91 | 121 | 150 | 205 | |
| Jaw stroke | U | mm | 9 | 15 | 15 | 17 | 17 | 23 | 23 | 30 | 30 | 40 | 40 |
| V | mm | M8 | M8 | M8 | M8 | M8 | M10 | M10 | M10 | M10 | M10 | M10 | |
| W | mm | 18 | 20 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 50 | 50 | |
| Y | mm | 5 | 6 | 8 | 10 | 12 | 12 | 12 | 12 | 12 | 18 | 18 | |
| Z | mm | 30 | 28 | 28 | 32 | 32 | 29 | 29 | 24 | 24 | 50 | 50 | |
| Piston area | centimeter 2 | 13 | 30 | 30 | 43 | 43 | 63.6 | 63.6 | 86.6 | 86.6 | 113 | 113 | |
| Maximum pressure | bar | 25 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | |
| Maximum speed | revolutions per minute | 3000 | 3000 | 2800 | 2500 | 2200 | 2000 | 1700 | 1200 | 1000 | 800 | 600 | |
| Rotating moment | kg·m 2 | 0.12 | 0.16 | 0.27 | 0.47 | 0.88 | 1.45 | 2.05 | 3.4 | 6.4 | 12 | 29 | |
| Clamping jaw weight | kilogram | 0.5 | 0.6 | 0.6 | 1.3 | 1.3 | 2 | 2 | 4 | 5 | 6 | 7 | |
| Body weight | kilogram | 18 | 24 | 32 | 42 | 52 | 80 | 95 | 128 | 170 | 285 | 490 | |
*Note:
Only under maximum pressure can the highest speed be achieved when using a jaw no heavier than the weight specified in the table above.
The machined workpieces and the two jaws must be properly balanced about the axis of rotation. If this condition is not met, or if a jaw is overweight, the spindle speed must be reduced.
The workpiece can be indexed while the spindle is rotating. When the workpiece is operating at high speed, to prevent vibration caused by unbalanced weight in the mid-position, it is recommended to reduce the speed by 30–50%.
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