servo driven flexo press
This page explains working principle of servo driven flexo press, differences from traditional gear-driven presses, core performance strengths and applicable high-precision printing scenarios, helping enterprises understand the value of servo drive technology in flexo printing.
A servo driven flexo press is a new generation gearless flexographic printing machine equipped with independent servo motors for each printing unit, abandoning the traditional mechanical gear linkage transmission mode. Every printing cylinder, anilox roller and tension roller is driven by a separate high-precision servo motor, and all motors keep synchronous operation through central intelligent control system. This innovative drive structure completely solves various printing defects caused by gear transmission wear in traditional flexo presses.
Traditional gear-driven flexo presses rely on connecting gears to realize synchronous operation of all color groups. Long-term high-speed operation will cause gear tooth wear, backlash and mechanical vibration, resulting in regular gear marks, unstable registration and gradual decline in printing accuracy. Servo driven flexo presses cancel all intermediate gear structures fundamentally, realizing direct electronic synchronous drive without mechanical transmission errors.
High Speed Flexo Printing Machine - Stack Flexo Flexo Printing Machine
Ultra-precise printing registration is the most prominent advantage of servo driven flexo presses. Independent servo motors support real-time micro-adjustment of each printing unit’s running angle and speed, achieving longitudinal and transverse registration accuracy within 0.05mm. This high precision perfectly meets printing requirements of fine lines, tiny texts and high-gradient halftone dots required for high-end pharmaceutical packaging and cosmetic label printing.
Flexible repeat length adjustment is another key benefit brought by servo drive technology. Gear-driven presses need to replace different printing cylinders or adjust gear ratios to change printing repeat length, requiring long downtime and extra labor cost. Servo flexo presses can realize stepless electronic adjustment of printing repeat length directly via the control screen without replacing any mechanical parts, greatly improving production flexibility for customized pattern sizes.
Servo driven flexo presses have stronger operation stability under high-speed working conditions. The servo closed-loop control system can instantly compensate subtle speed deviation and tension fluctuation during machine running, avoiding pattern stretching and color distortion even at the speed over 500 meters per minute. Besides, the whole machine operates with lower mechanical noise and less vibration, extending the overall service life of printing plates and anilox rollers.
The only limitation of servo driven flexo presses is higher initial procurement cost than ordinary gear-driven models. However, its advantages including lower maintenance frequency, less production waste, faster order switching and higher finished product yield can offset the extra procurement cost in a short time. At present, full servo driven structure has become the standard configuration for mid-to-high-end flexo printing presses globally.
