| Customization: | Available |
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| After-sales Service: | One Year |
| Warranty: | One Year |
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K72 series Four-jaw independent chuck adopts short cylinder and short circular cone shape. Short circular cone shape can be subdivided into two types according to the way of joining with the spindle nose of machine tool: Type A(joined with screw), Type C(bolt locking joint), Type D(pull rod, cam locking joint).
| SEPC./MODEL | D1 | D2 | D3 | H | H1 | H2 | h | z-d |
| K72 80 | 55 | 66 | 16 | 66 | 50 | - | 3.5 | 3-M6 |
| K72 100 | 72 | 84 | 22 | 74.5 | 55 | - | 3.5 | 3-M8 |
| K72 125 | 95 | 108 | 30 | 85 | 58 | - | 4 | 3-M8 |
| K72 160 | 100 | 115 | 30 | 85 | 58 | - | 4 | 3-M8 |
| K72 200 | 130 | 142 | 40 | 95 | 65 | - | 5 | 3-M8 |
| K72 250 | 130 | 142 | 40 | 109 | 65 | 71 | 5 | 3-M8 |
| K72 315/320 | 130 | 145 | 40 | 95 | 65 | - | 5 | 3-M8 |
| K72 350 | 130 | 145 | 40 | 109 | 65 | 71 | 5 | 3-M8 |
| K72 400 | 155 | 172 | 55 | 109 | 75 | - | 5 | 3-M10 |
| K72 500 | 155 | 172 | 55 | 122 | 75 | 80 | 5 | 3-M10 |
| K72 520 | 165 | 180 | 65 | 109 | 75 | - | 5 | 3-M10 |
| K72 630 | 165 | 180 | 65 | 122 | 75 | 80 | 5 | 3-M10 |
| K72 800 | 195 | 215 | 70 | 120 | 80 | - | 8 | 3-M12 |
| K72 1000 | 195 | 215 | 70 | 133 | 80 | 85 | 8 | 3-M12 |
| K72 1250 | 206 | 226 | 80 | 120 | 80 | - | 5 | 3-M12 |
Nanjing Prasteel Industrial Co., Ltd. is a scientific and technological enterprise integrating research and development, production,sales and service together. The company has strong technical strength, advanced production equipment, and perfect quality system and strong production capacity, and warmly welcome new and old customers to come and give guidance.
Our products cover chuck, cylinder, turret, tool holder, tool magazine, steady rests, CNC machine frame, spindle and other machine tool accessories.
All the products with "reasonable prices, reliable quality and excellent service" are praised by the majority of new and old customers, and are widely used in CNC lathe, Manual lathe, machining center, milling and drilling machine, welding equipment, pipe threading machine, laser cutting equipment, "flow line production equipment and automated control systems and so on.
The structures of the above products are of unique innovation, safe and reliable, with superior performance; they have obtained certification by the state certification authorities and passed ISO9001 quality system certification, and have been granted several national patents and high-tech product certificates. The company adheres to the principles of winning market share by high quality, creating brilliance by science and technology, seeking for development in good faith, and fully implementing quality management and providing zero-distance serves, to provide every customer with the most attentive service.
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