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Hydraulic Chuck High Accuracy Less Labor Intensity High Automatic Level

The hydraulic power chuck is an important functional part of all kinds of CNC turning machines. It is directly installed on the spindle of machine tools. It can get strong and stable clamping force through the hydraulic oil. Compared with manual chucks , power chucks have charactoristic of high accuracy, less labor intensity, high automatic level, etc. With the development of production, power chucks will gradually replace ordinary manual self centering chucks.
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Advantage

The Lathe Chuck offers a multitude of advantages that make it an indispensable tool in lathe operations. Firstly, its versatility stands out prominently. With the option of self-centering or independent jaws, it can handle a diverse range of workpieces. Self-centering jaws are ideal for quickly and easily clamping round workpieces with consistent diameters, such as pipes, rods, and cylindrical components. This feature significantly reduces the setup time, allowing for increased productivity, especially in high-volume production environments. Independent jaws, on the other hand, provide the flexibility to grip irregularly shaped workpieces, enabling intricate machining tasks that would otherwise be challenging or impossible. For example, when working with parts that have odd contours or require precise positioning of off-center features, independent jaws can be adjusted individually to secure the workpiece accurately.


Another key advantage is the high level of precision it provides. The design of the lathe chuck, with its precisely machined components and advanced clamping mechanisms, ensures that the workpiece is held in a fixed and accurate position. This precision is crucial for achieving tight tolerances and high-quality surface finishes. In industries where precision is paramount, such as aerospace and medical device manufacturing, the lathe chuck plays a vital role in producing components that meet strict quality standards. The ability to minimize vibrations and movement during machining also contributes to the extended lifespan of cutting tools, as they experience less stress and wear.


The ease of operation is yet another significant advantage. Key-operated lathe chucks offer a simple and intuitive way to control the clamping force, allowing operators to adjust it according to the specific requirements of the workpiece. Power-driven chucks, on the other hand, provide a faster and more convenient option, especially for heavy-duty applications. With the push of a button or the activation of a switch, the clamping and unclamping process can be completed quickly, reducing the physical effort required from the operator and further enhancing productivity.


Design

The design of the lathe chuck is a harmonious blend of functionality and durability. The body is constructed from sturdy materials like cast iron or forged steel to withstand the rigors of machining operations. The jaws are made from hardened steel to ensure a firm grip on the workpiece while maintaining their shape and integrity over time. The scroll mechanism in self-centering chucks is engineered for smooth and accurate movement of the jaws, while the individual screw mechanisms in independent chucks offer precise adjustment capabilities.


Applications

In the manufacturing of precision instruments, lathe chucks are used to hold delicate components during the machining process. The high precision of the chuck ensures that the final product meets the exacting specifications required for accurate measurements. In the automotive aftermarket, lathe chucks are essential for refurbishing and customizing engine parts, such as resurfacing crankshafts or modifying connecting rods.

For hobbyists and DIY enthusiasts, the lathe chuck enables a wide range of creative projects, from turning wooden bowls and vases to crafting metal jewelry and small mechanical parts. Its versatility and ease of use make it accessible to users with varying levels of experience.

Hydraulic chuck

Dimensions and specifications of 3H-A type are in the red data.

Model Plunger stroke(mm) Jaw stroke(dia) Clamping range(mm) Max.D.B.pull(KN) Max.clamping force(KN) Max.speed(r/min) Moment of inertia(kg.m2) Matching cyl. Max.pressure(MPa) Weight(Kg)
3H-04 10 5.4 7-110 13.7 28.4 8000 0.01 TH-536 2.3 4
3H-05 A4 10 5.4 12-135 17.1 35.8 7000 0.02 TH-536 2.9 6.7 7.5
3H-06 A5 12 5.5 15-168 21.5 56.8 6000 0.06 TH-646 2.8 11.9 13.7
3H-08 A5 16 7.4 13-210 34.3 85.8 5000 0.18 TH-852 2.8 22.5 25.4
3H-08 A6 16 7.4 13-210 34.3 85.8 5000 0.18 TH-852 2.8 22.5 23.6
3H-10 A6 19 8.8 31-254 42.6 110.7 4200 0.33 TH-1075 2.7 34.5 41.5
3H-10 A8 19 8.8 31-254 42.6 110.7 4200 0.33 TH-1075 2.7 34.5 40
3H-12 A8 23 10.6 34-304 54.9 143.6 3300 0.77 TH-1291 2.7 56.6 59.5
3H-15 A8 23 10.6 50-381 71 179.8 2500 2.47 TH-1512 2.4 120 134
3H-15 A11 23 10.6 50-381 71 179.8 2500 2.39 TH-1512 2.4 120 127
3H-18 A11 23 10.6 50-450 71 179.8 2000 4.78 TH-1512 2.4 164 178


Model A B C D D1 D2 E E1 F Gmax. Gmin. H
3H-04 110 59 85 70.6 - - 4 - 26 3.5 -6.5 17.5
3H-05 A4 135 60 71 110 82.6 63.513 96 4 15 33 1 16 -9 6 20
3H-06 A5 168 81 91 140 104.8 82.563 116 5 15 45 11 26 -1 14 19
3H-08 A5 210 91 109 170 133.4 82.563 104.8 5 23 52 14.5 37.5 -1.5 21.5 20.5
3H-08 A6 210 91 103 170 133.4 106.375 150 5 17 52 14.5 31.5 -1.5 15.5 20.5
3H-10 A6 254 100 120 220 171.4 106.375 133.4 5 25 75 8.5 33.5 -10.5 14.5 25
3H-10 A8 254 100 113 220 171.4 139.719 190 5 18 75 8.5 26.5 -10.5 7.5 25
3H-12 A8 304 110 122 220 171.4 139.719 190 6 18 91 8 26 -15 3 28
3H-15 A8 381 133 160 300 171.4 139.719 171.4 6 33 120 8 44 -15 21 28
3H-15 A11 381 133 149 300 235 196.869 260 6 22 120 11 33 -12 10 39
3H-18 A11 450 133 149 300 235 196.869 260 6 22 120 11 33 -12 10 39


Model J Kmax. L L1 M N P Omax. Omim. Rmax. Rmin. S T U
3H-04 12 M32x1.5 3-M10 16 24 52 14 11.3 6.8 23 20.3 25 10 -
3H-05 A4 12 M40x1.5 3-M10 15 15 31 62 14 19.8 7.8 26.5 23.8 25 10 3-M6
3H-06 A5 20 M55x2 6-M10 16 16 37 73 20 22.8 9.3 32 29.3 31 12 3-M6
3H-08 A5 30 M60x2 6-M12 20 17 38 95 25 29.8 14.8 38.7 35 35 14 6-M10
3H-08 A6 30 M60x2 6-M12 20 18 38 95 25 29.8 14.8 38.7 35 35 14 3-M6
3H-10 A6 45 M85x2 6-M16 22 18 43 110 30 33.8 14.3 51 46.6 40 16 6-M12
3H-10 A8 45 M85x2 6-M16 22 24 43 110 30 33.8 14.3 51 46.6 40 16 3-M8
3H-12 A8 50 M100x2 6-M16 23 25 51 130 30 45.8 15.8 61.3 56 50 21 3-M8
3H-15 A8 50 M130x2 6-M20 30 24 63 165 43 47.3 18.2 80 74.7 62 25.5(22) 6-M16
3H-15 A11 60 M130x2 6-M20 30 28 63 165 43 47.3 18.2 80 74.7 62 25.5(22) 3-M10
3H-18 A11 60 M130x2 6-M20 30 28 63 165 43 79.2 18.2 80 74.7 62 25.5(22) 3-M10


Q: What is the difference between a hydraulic and a pneumatic lathe chuck?

A: Hydraulic lathe chucks use hydraulic fluid to generate the clamping force. They typically offer higher clamping forces and more consistent performance, making them suitable for heavy-duty applications. Pneumatic lathe chucks, on the other hand, use compressed air to operate. They are generally faster in terms of clamping and unclamping, and they are often more cost-effective and require less maintenance. However, they may have lower clamping forces compared to hydraulic chucks.

Q: Can I replace the jaws of my lathe chuck?

A: Yes, in most cases, the jaws of a lathe chuck can be replaced. This is especially useful when the jaws are worn out or when you need to use different types of jaws for specific workpieces. Replacement jaws are usually available from the manufacturer or from specialized tool suppliers. Make sure to choose jaws that are compatible with your chuck model and size.

Q: How do I ensure that the workpiece is centered correctly in a self-centering lathe chuck?

A: For a self-centering lathe chuck, ensure that the jaws are clean and free of debris. When inserting the workpiece, make sure it is placed evenly between the jaws. You can also use a dial indicator to check the concentricity of the workpiece. If the workpiece is not centered correctly, try adjusting its position slightly or check if the jaws are worn or damaged.


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