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Help CenterLathe Power Chuck 4 Jaw Used for CNC Production Surface and Form Grinder
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Lathe Power Chuck 4 jaw used for CNC Production Surface and Form Grinder
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Technical features:
1. Adopt the advanced alloy steel material, all with the surface by surface
hardening treatment, in order to improve the accuracy and durability.
2. It is a wedge-hook type 2 jaw with the large through-hole.
3. Matching surfaces of all parts hardened, ground and lubricated directly.
4. Construction of high rigidty and high clamping accuracy
5. with flange connection, A connection.
6. Supports large clamping forces and high speeds
7. Suitable for clamping part of a workpiece inserted into the thru hole, checking the
seating, or modifying spindle coolant specifications.
8. Capable of bar-feeding
There are three questions to answer to aid the correct choice of power chuck:
1. Type and model of CNC lathe.
2. Length of workpiece?
3. Outer diameter of workpiece?
4. Processing requirement?
Size Parameters
| Model/Spec | A | B | C (h6) | D | E | E1 | F | G | H | J | K | L | M |
| YK4-06“ | 169 | 81 | 140 | 82.563 | 15 | - | 5 | 116 | 104.4 | 45 | 6-M10×1.5P | 16 | 20 |
| YK4-08" | 210 | 91 | 170 | 106.375 | 17 | 23 | 5 | 150 | 133.4 | 52 | 6-M12×1.75P | 18 | 25 |
| YK4-10" | 254 | 100 | 220 | 139.719 | 18 | 28 | 5 | 190 | 171.4 | 75 | 6-M16×2P | 19 | 30 |
| YK4-12" | 304 | 110 | 220 | 139.719 | 18 | - | 6 | 190 | 171.4 | 91 | 6-M16×2P | 25 | 30 |
| YK4-15" | 380 | 133 | 300 | 196.869 | 22 | 33 | 6 | 260 | 235 | 117.5 | 6-M20×2.5P | 28 | 43 |
| Model/Spec | N (max) | N (min) | O (max) | O (min) | P (max) | P (min) | Q | R | S | U | W | X | H1 |
| YK4-06" | 32 | 29.25 | 24 | 7 | 11 | -1 | 31 | 12 | 19 | M55×2P | 37 | 73 | PCDØ145 |
| YK4-08" | 38.7 | 35 | 30 | 10 | 14.5 | -1.5 | 35 | 14 | 20.5 | M60×2P | 39 | 95 | PCDØ180 |
| YK4-10" | 51 | 46.6 | 34 | 12 | 8.5 | -10.5 | 40 | 16 | 25 | M85×2P | 43 | 110 | PCDØ225 |
| YK4-12" | 61.3 | 56 | 46 | 12 | 8 | -15 | 50 | 21 | 28 | M100×2P | 51 | 129 | PCDØ250 |
| YK4-15" | 82.7 | 77.4 | 46 | 13 | 8 | -16 | 62 | 21 | 42.5 | M130×2P | 66 | 165 | PCDØ324 |
It is recommended to grease chucks at least twice a day in order to maximize longevity
Performance Parameters
| Model/Spec | Nose of spindle | Thru-Hole (Diam) (mm) | Plunger Stroke (mm) | Jaw Stroke (Diam) (mm) | Max. Speed (r.p.m) | Max. Pull Force (kgf) | Max. Gripping Force (kgf) | Max. Hydr. Pressure (kgf/cm²) | Net weight (kg) | Matching Cylinder | Gripping Ranger |
| YK4-06" | A25 | 45 | 12 | 5.5 | 6000 | 1420 | 3770 | 18.5 | 13.1 | TK646 | Ø15~Ø169 |
| YK4-08" | A26 (A25) | 52 | 16 | 7.4 | 4800 | 2240 | 5710 | 17 | 23 | TK852 | Ø20~Ø210 |
| YK4-10" | A28 (A25) | 75 | 19 | 8.8 | 4200 | 2850 | 7440 | 18 | 35.9 | TK1075 | Ø25~Ø254 |
| YK4-12" | A28 | 91 | 23 | 10.6 | 3300 | 3670 | 9690 | 18 | 56.2 | TK1291 | Ø30~Ø304 |
| YK4-15" | A211 (A28) | 117.5 | 23 | 10.6 | 2500 | 4790 | 12130 | 17 | 103.2 | TK1512 | Ø50~Ø381 |
| No. | Name | No. | Name |
| 1 | Body | 13 | Hex. socket head bolt |
| 2 | Wedge pluger | 14 | Hex. socket head bolt |
| 3 | Master jaw | 15 | Set screw |
| 4 | Soft jaw | 16 | Steel ball |
| 5 | T-nut | 17 | Grease nipple |
| 6 | Plunger nut | 18 | Cover plug |
| 7 | Draw nut | 19 | Fist head cap screw |
| 8 | Cover | 20 | O-ring |
| 9 | Spring | 21 | Wrench |
| 10 | Handle body | 22 | Rivet |
| 11 | Handle pin | 23 | Eyebolt |
| 12 | Hex. socket head bolt | |
The matching products including:
1. Soft jaws.
2. Hex. socket head bolt, wrench, eyebolt, handle pin, handle body
3. Adaptor plate
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