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Scroll Chuck Self Centering for CNC turning machines

The three jaw or four jaw self centering lathe chuck is an important part of all kinds of traditional CNC turning machines. It is installed on the spindle of lathes. The short-cylinder chucks are connected with the machine spindle through adapter plate,The short-taper chucks are mounted to the machine spindle directly. They are of the features of short overhung, fine rigidity, high centering accuracy and easy operation.
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Design

The design of the lathe chuck is tailored to meet the diverse needs of these applications. The body is made from durable materials to withstand the forces involved in machining different materials. The jaws are designed to provide a secure grip, with options for self-centering or independent adjustment. The clamping mechanism is engineered for ease of use and reliability, whether it's a key-operated or power-driven system.


Advantage

One of the main advantages in these applications is the ability to hold workpieces securely. This ensures that the machining operations can be carried out accurately, reducing the risk of errors and improving the quality of the final product. The versatility of the lathe chuck, with its different jaw options, allows it to adapt to various workpiece shapes and sizes, increasing its utility in different manufacturing processes.

  • Short cylindrical center mounting.

  • K11 chucks are provided with one-piece jaw ,including a set of internal jaws and a set of external jaws.

  • Jaws for K11A,K11C,K11D chucks are composed of two-piece jaws.They can perform as either internal or external jaws through adjustment.

  • Jaws for K11A,K11D chucks conform to ISO3442 standard.

  • K11C chucks are suppled with traditional two-piece jaws.

  • Body materials are classified as wear-resisting alloy cast iron.

Scroll chuck


Model D D1 D2 D3 H H1 H2 h z-d N.W.kg
80 55 66 16 66 50 - 3.5 3-M6 1.9
100 72 84 22 74.5 55 - 3.5 3-M6 3.2
125 95 108 30 78 55 - 4 3-M8 5
130 100 115 30 78 55 - 3.5 3-M8 5.6
160 130 142 40 93 65 - 5 3-M8 8.8
160A 130 142 40 109 65 71 5 3-M8 8.3
165 130 145 40 93 65 - 5 3-M8 9.5
190 155 172 55 105 75 - 5 3-M10 13.8
200 165 180 65 109 75 - 5 3-M10 15.5
200C 165 180 65 122 75 78 5 3-M10 14.1
200A 165 180 65 122 75 80 5 3-M10 14.1
240 195 215 70 120 80 - 8 3-M12 24
240A 195 215 70 134 80 85 8 3-M12 20
250 206 226 80 120 80 - 5 3-M12 25.7
250C 206 226 80 130 80 84 5 3-M12 23
250A 206 226 80 134 80 86 5 3-M12 23
315 280 285 100 141 90 - 6 3-M16 47
315C 260 285 100 147 90 95 6 3-M16 41
315A 260 285 100 154 90 96 6 3-M16 41
320 270 290 100 154 95 - 6 3-M16 47.5
320C 270 290 100 154 90 96.5 6 3-M16 42
320A 270 290 100 154 90 96.5 6 3-M16 42
325 272 296 100 154 90 - 6 3-M16 49
325C 272 296 100 154 90 96.5 6 3-M16 44
325A 272 296 100 154 90 96.5 6 3-M16 46
380 325 350 130 155.5 100 - 6 3-M16 65
380C 325 350 130 155.5 100 96.5 6 3-M16 60
380A 325 350 130 170.5 100 96.5 6 3-M16 62
400 340 368 130 155.5 100 - 6 3-M16 74
400A 340 368 130 170.5 100 108.5 6 3-M16 71
500 440 465 200 176 115 - 6 3-M16 124
500A 440 465 200 203 115 123 6 3-M16 119
500D 440 465 200 203 115 123 6 3-M16 117
630 560 595 260
130 - 7 3-M16 217
630A 560 595 260 218 130 138 7 3-M16 208
800A 710 760 385 249 148 158 8 3-M20 250
1000A 910 950 460 266 165 216 8 3-M24 746



Q: Can a lathe chuck be used for very small workpieces?

A: Yes, there are lathe chucks specifically designed for holding small workpieces. These chucks often have smaller jaw openings and more precise clamping mechanisms to accommodate the delicate nature of small parts. However, for extremely small workpieces, additional fixtures or collets may be required in combination with the chuck to ensure a secure hold.

Q: How do I select the appropriate clamping force for my workpiece?

A: The clamping force depends on the material, size, and shape of the workpiece. For soft materials, a lower clamping force is usually sufficient to avoid damaging the workpiece. For hard materials or large workpieces, a higher clamping force may be needed to prevent the workpiece from moving during machining. It's also important to consider the machining operation being performed, as some operations may generate more forces and require a stronger clamping force.

Q: Are there any safety precautions I should take when using a lathe chuck?

A: Yes, when using a lathe chuck, always ensure that the chuck is properly mounted on the lathe spindle and that the jaws are tightened securely before starting the machining operation. Keep your hands and other objects away from the rotating chuck and workpiece. Use appropriate personal protective equipment, such as safety glasses and gloves. Also, make sure to disconnect the power source when changing the workpiece or performing maintenance on the chuck.


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