Dynamic balancing of an electro-spindle is not simply “adding or removing weights”; it is about ensuring that the rotating body keeps its center of gravity coincident with its rotational axis at every moment and angle. Once the center of gravity drifts, centrifugal force acts like an invisible hand, pushing against bearings, exciting vibration and amplifying noise—ultimately devouring micron-level accuracy in imperceptible tremors.
II. The Journey of Balance
Pre-balance: Natural Ageing + Low-Speed Running-in Castings are left to stand so internal stress dissipates slowly; low-speed idling allows bearing raceways to form an even oil film. This is the first “relaxation” of dynamic balancing.
Fine Balance: Laser Scanning + Cloud Compensation A laser beam sweeps the spindle outer circle; cloud algorithms compare the theoretical circle with the actual one in real time, writing offset values into a compensation table. This is the “micron-level correction” of dynamic balancing.
Dynamic Balance: High-Speed Running-in + Spectrum Analysis The spindle is gradually raised to working speed; a spectrum analyser listens to the vibration spectrum, turning “tremor” into “silence”. This is the “silent art” of dynamic balancing.
III. Verification of Balance • Listen to sound: at high speed, there should be no “tremor” or “whistling”. • Feel temperature rise: after continuous running, bearing housings are only slightly warmer than body temperature, with no hot-hand phenomenon.
• Measure accuracy: a laser interferometer re-checks spindle run-out, data benchmarked to factory standard.
IV. Maintenance of Balance • Each shift: infrared thermometer detects bearing housing temperature rise—stable means qualified. • Monthly: laser interferometer re-checks spindle run-out, data benchmarked to factory standard.
• Quarterly: re-tighten bearing lock nuts, re-measure run-out, data archived in JSWAY cloud.
V. Commitment to Balance • Factory-equipped “Spindle Health ID” — scan to view balance curve. • On-site spindle re-calibration service to restore factory accuracy.
• Common bearing lock nuts shipped within hours, reducing customer downtime.
One-Sentence Summary Write “silence” into every degree of rotation — let natural ageing, laser scanning and spectrum analysis become the “birth certificate” of every electro-spindle. This is the lifetime silent insurance JSWAY provides for your precision manufacturing.
