LQ-8S
LQ-8S Series 8-Color Flexo High Speed Printing Machine
8–120 m/min
Speed
The LQ-8S Series is an 8-color high-speed flexographic printing machine and the flagship of Layerquestar's flexo printing lineup, extending the 2-, 4-, and 6-color series with full 8-color process capability for complex brand graphics, photographic-quality retail packaging, and CMYK-plus-spot-color production.
Available in four substrate widths — 600mm, 800mm, 1000mm, and 1200mm — the series operates at up to 120 m/min with stepless VFD speed control from 8 m/min, delivering approximately 18,000 bag-length impressions per hour at full speed on a 400mm repeat.
The synchronous belt drive system maintains precise registration across all eight color stations by eliminating the backlash and vibration inherent in chain-driven systems — a non-negotiable requirement when 8-color overlay misalignment of even 0.1mm is visible to the naked eye.
An EPC (Edge Position Control) hydraulic auto-correction system on the unwind station continuously maintains lateral substrate alignment without operator intervention, critical at speeds approaching 120 m/min.
The dual-zone blow-and-heat drying system with central constant-temperature control accommodates the full substrate range from thin 20μm PE film through heavy paper and woven bags without manual oven reconfiguration. A dedicated cold air bellows cooling section immediately follows the drying zone, rapidly setting the ink before rewinding to prevent blocking and color migration on the finished roll.
Impression rollers are manufactured from special steel with 10-wire hard chromium electroplating for surface hardness of 900–1100 HV, providing exceptional wear resistance and ink solvent resistance across continuous multi-shift operation. Aluminum alloy guide wheels undergo hard anodization plus dynamic and static balancing treatment, minimizing lateral drift and substrate edge damage at high speed.
All four models share identical mechanical architecture, drive system, and feature set — substrate width is the sole differentiator.
Confirmed output types for this machine configuration. Actual results depend on film specification and tooling selection.
Not sure if this machine covers your specific product? Send us your sample or drawing
All specifications are under standard operating conditions and may vary depending on film material, bag size and configuration.
| Model Number | LQ-8S |
|---|---|
| Machine Weight | 5,000–6,500 kg |
| Print Colors | 8 Colors |
| Max Print Width | 1160mm |
| Max Speed | 8–120 m/min |
| Substrates | PE Film · PP Film · Kraft Paper · Coated Paper · Woven Bag · Non-Woven Fabric |
Specifications subject to change without notice. Contact LayerQuestar for the latest confirmed datasheet for this model.
Common questions about the LQ-8S. For configuration-specific questions, contact our engineering team directly.
The LQ-8S Series operates at a maximum speed of 120 m/min with stepless VFD speed adjustment from 8 m/min, allowing operators to optimize speed for job setup, short runs, and full-volume production.
The LQ-8S Series supports PE film, PP film, kraft paper, coated paper, woven PP bags, and non-woven fabric across all four models.
The LQ-1200S handles substrates up to 1200mm wide with a maximum printing width of 1160mm (45.7"), making it the widest model in the Layerquestar flexo printing lineup.
The machine accepts plates from 1.14mm to 3.94mm, covering thin digital photopolymer plates for fine-detail work through thick conventional plates for bold solid-coverage printing.
Synchronous belt drive eliminates the backlash and vibration of chain-driven systems across all 8 color stations. In 8-color overlay printing, misalignment of even 0.1mm is visible — the non-slip belt transmission maintains the registration precision required for complex brand graphics and process color work.
EPC (Edge Position Control) is a hydraulic auto-correction system on the unwind station that continuously adjusts lateral substrate position without operator intervention. At speeds approaching 120 m/min, manual web correction is impractical — EPC is essential for maintaining color registration and reducing substrate waste.
After the drying zone, a dedicated cold air bellows section rapidly cools the ink before the substrate is rewound. This prevents ink-to-ink adhesion (blocking) and color migration between layers on the finished roll — a common defect in high-speed multi-color printing without active cooling.
All four models share identical speed, drive system, drying technology, and feature set. Select based on maximum substrate width: 600mm, 800mm, 1000mm, or 1200mm. Machine weight scales from 5,000 kg to 6,500 kg across the range.
The LQ-600S weighs 5,000 kg, LQ-800S 5,500 kg, LQ-1000S 6,000 kg, and LQ-1200S 6,500 kg. Reinforced flooring or a concrete foundation pad is recommended for all models.
The LQ-8S Series is positioned after blown film extrusion or roll stock supply and before the bag making machine. Workflow: film/paper production → 8-color flexo printing → bag making. It can also operate offline on pre-made rolls from external suppliers.
Send us your bag size, output target and film spec — LayerQuestar will respond within 4 business hours.