M8320A Ultra-High-Speed CBN Follow-Up CNC Grinding Machine
Product Description
Machine Tool Overview
The JKM8320A high-speed CBN follow-up CNC grinding machine is a domestically advanced CNC machine tool used for grinding camshafts of internal combustion engines—such as those found in automobiles, motorcycles, and generator sets—as well as cams for textile machinery. It features high machining efficiency, excellent flexibility, and a high degree of automation. This machine can process various different models of camshafts, making it an ideal processing equipment for the mass production of high-precision camshafts in multiple varieties.
Main features of the machine tool
■ Equipped with the German SIEMENS 840D sl CNC system, featuring 4 axes with 2-axis linkage;
■ Adopts cam CNC grinding software with independent intellectual property rights;
■ Employs a motor-integrated spindle with static and dynamic pressure bearings, featuring proprietary intellectual property rights.
■ Utilizing high-speed grinding technology with a CBN grinding wheel operating at 100 meters per second;
■ The grinding wheel spindle is equipped with an empty-travel anti-collision device from (U.S. SBS or Italian Marposs);
■ The grinding wheel spindle feed system features cylindrical hydrostatic guideways paired with a German SIEMENS linear motor and a German HEIDENHAIN grating scale.
■ The headstock features a hydrostatic bearing spindle paired with a German SIEMENS torque motor and a German HEIDENHAIN encoder.
Main specifications and technical parameters
| Project | Unit | Specifications | |||||||||||||||||||||||||||||
| Maximum length of machined parts | mm | 850/1000 | |||||||||||||||||||||||||||||
| Maximum diameter of machined part | mm | Φ200 | |||||||||||||||||||||||||||||
| Maximum weight of machined parts | Kilogram | 80 | |||||||||||||||||||||||||||||
| Maximum cam lift | mm | 50 | |||||||||||||||||||||||||||||
| Top-tier center height | mm | 140 | |||||||||||||||||||||||||||||
| CBN grinding wheel specifications | mm | Φ350 × Φ40 × B (≤38) | |||||||||||||||||||||||||||||
| Maximum peripheral speed of grinding wheel | M/s | 120 | |||||||||||||||||||||||||||||
| Average workpiece revolutions (constant linear speed) | RPM | 10-250 | |||||||||||||||||||||||||||||
| Headstock spindle taper | MT | 5 # | |||||||||||||||||||||||||||||
| Tailstock slide travel distance | mm | ≤35 | |||||||||||||||||||||||||||||
| Base circle runout error | mm | ±0.01 | |||||||||||||||||||||||||||||
| Cam full-stroke error | mm | ±0.02 | |||||||||||||||||||||||||||||
| Cam adjacent lift error | mm/° | ±0.005 | |||||||||||||||||||||||||||||
| Cam phase angle error | / | ±10 minutes | |||||||||||||||||||||||||||||
| Surface roughness | micrometer | Ra ≤ 0.4 | |||||||||||||||||||||||||||||
| Total machine power | Kw | 50 | |||||||||||||||||||||||||||||
| Total weight of the machine tool | Kilogram | 12000 | |||||||||||||||||||||||||||||
| Machine tool external dimensions (length × width × height) | mm | 4300×2300×2000 | |||||||||||||||||||||||||||||
Key words:
M8320A Ultra-High-Speed CBN Follow-Up CNC Grinding Machine
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Address:No.58, Juye Road, Jiaojiang District, Taizhou City, Zhejiang Province, China
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