Flexo Technology
Plate mounting and high productivity flexo workflows
By, David Muncaster, managing director, Heaford F
lexo as a process is underpinned by plate mounting. When executed well, it protects press uptime, removes bottlenecks and ensures consistent quality across label and
packaging production.
With high quality expected, shorter runs more frequent and tighter turnarounds now standard, demands on pre-press processes, particularly plate mounting, have intensifi ed. Automated processes play a critical role, enabling printers to maximise production equipment value. By removing touchpoints, reducing errors and increasing consistency, pre-press performance improves signifi cantly. Modularity further evolves the investment equation. Rather than replacing equipment as requirements shift, a modular architecture allows the same platform to be upgraded over time. Systems such as the Heaford ModularMount are built to support a wide range of specifi cations, from manual to fully automated, scaling alongside business growth.
A common misconception is that automated systems operate only in a fi xed mode. ModularMount challenges this by being backwardly functional, allowing fully automated lines to operate as if manual. This fl exibility matters, as systems requiring strict automation conditions introduce operational fragility. Platforms that adapt to varying circumstances provide greater resilience.
SPEED X PRODUCTIVITY Speed, precision and repeatability defi ne eff ective mounting. Built on a robust chassis, modern
systems incorporate technologies that ensure optimal plate positioning with micron-level accuracy.
Take pre-positioned cameras, which are driven by high-precision and accurate linear servo motors. They automatically adjust to mounting parameters to enable operators to mount three plates across a sleeve width, staggered at diff erent degrees, within just a few minutes under semi-automatic or automatic operation.
However, speed without repeatability
off ers limited value. Automatic mounters that consistently deliver the same result regardless of the operator eliminate the need for remounting. Remounting carries compounded costs, including wasted materials, idle press time and delayed production.
Customers adopting automatic mounting systems typically report a return on investment within approximately one year, driven by reduced labour costs, reduced remounting and increased press uptime.
SYSTEMIC MOUNTING
The physical act of mounting represents only part of total process time. Tape application, sleeve preparation, job data entry and plate removal all contribute, though are often overlooked in headline speed metrics. Offl ine dedicated demounters and tape applicators allow tasks to occur away from the mounter, keeping the machine’s primary purpose productive and helping to reduce plate damage. Additional options include barcode scanners for job identifi cation, plate cutting systems for precise plate cutting and CheckMount, a proprietary
verifi cation system from Heaford for confi rming correct plate placement during mounting. A more recent developments is QR codes and datamatrix codes printed directly onto photopolymer plates. When scanned, these codes retrieve job data, mounting parameters and repeat specifi cations automatically, reducing manual intervention and supporting traceability.
A plate mounter incorporating sleeve inspection extends value beyond mounting alone. Sleeve condition directly impacts print quality, with runout, surface damage and dimensional variation translating into dot inconsistency on press. Heaford off ers both contact and laser-based scanning systems measuring total indicated runout to an accuracy of +/- 5 microns, along with laser surface scanning which generates contour maps to identify high and low spots or damage. Inspection data is stored against each sleeve record, allowing operators to review scan history and apply projected wear curves to anticipate when a sleeve will fall out of specifi cation before reaching press. This predictive approach reduces unplanned downtime and removes a variable from the quality equation.
Sleeve inspection systems are available on semi-automatic and automatic mounters and can be retrofi tted to most existing machines where mandrels are motorised with encoder support. Plate mounting is most eff ective when a holistic approach is taken to the entire process, From sleeve preparation and tape application through identifi cation, mounting, verifi cation and removal, this ensures optimum mounting. The most productive fl exo operations treat mounting as an integrated workfl ow rather than an isolated task. The right combination of equipment, automation and supporting tools delivers measurable gains in uptime, material effi ciency and print consistency.
www.convertermag.com
May/June 2026
43
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