120 m/min
LQ-4CH
LQ-4CH Series 4-Color Flexo High Speed Printing Machine
8–100 m/min
Speed
The LQ-4CH Series is a 4-color high-speed flexographic printing machine built for demanding, high-volume roll-to-roll production on plastic film, paper, woven, and non-woven substrates.
Available in three substrate widths — 600mm, 800mm, and 1000mm — the series delivers an operational printing speed of 8–100 m/min (120 m/min mechanical rated), approximately double the throughput of the standard LQ-4C series.
The synchronous belt drive system ensures low-noise operation and precise speed control during startup and shutdown, directly improving 4-color registration accuracy at high speeds. A hydraulic EPC (Edge Position Control) unwinder automatically corrects lateral web drift in real time, eliminating manual alignment intervention and maintaining registration accuracy as speeds approach 100 m/min.
The large-capacity drying oven is engineered specifically for high-speed operation — its extended thermal path compensates for reduced ink dwell time at top speed, ensuring complete cure on non-absorbent PE and PP film substrates.
Helical gear printing drives reduce vibration-induced print banding, a common quality issue on high-speed presses. The flexible plate thickness range of 1.14–3.94mm accommodates both fine-detail photopolymer plates and thick plates for bold solid coverage, supporting mixed job types across the same machine.
All three models share identical mechanical architecture — 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-4CH |
|---|---|
| Machine Weight | 5,000–6,000 kg |
| Print Colors | 4 Colors |
| Max Print Width | 960mm |
| Max Speed | 8–100 m/min |
| Substrates | PE Film · PP Film · Paper (Kraft / Coated) · 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-4CH. For configuration-specific questions, contact our engineering team directly.
The LQ-4CH is the high-speed upgrade: it runs at 8–100 m/min versus 50 m/min on the LQ-4C, adds a synchronous belt drive, hydraulic EPC auto-alignment unwinder, wider plate thickness range (1.14–3.94mm vs. fixed 2.38mm), and a large-capacity high-speed drying oven.
The operational printing speed range is 8–100 m/min. The 120 m/min figure is the maximum mechanical rated speed; recommended production speed is 8–100 m/min for consistent print quality and color registration.
The LQ-4CH Series supports PE film, PP film, paper (including kraft and coated), woven PP bags, and non-woven fabric across all three models.
The machine accepts flexographic printing plates from 1.14mm to 3.94mm, covering standard thin photopolymer plates for fine-detail work through thicker plates for bold solid-coverage printing.
EPC (Edge Position Control) is a hydraulic automatic web-guiding system that corrects lateral substrate drift in real time without operator intervention. At speeds above 80 m/min, manual correction is impractical — EPC is essential for maintaining color registration accuracy and reducing substrate waste.
All three models share identical speed, drive system, plate range, and core features. Select based on maximum substrate width required: 600mm, 800mm, or 1000mm. Note the LQ-4CH-800 and LQ-4CH-1000 share the same 2.0m footprint width — the 1000 is a direct capacity upgrade with no additional floor space needed.
At 80–100 m/min, substrate passes through the drying zone much faster than at standard speeds, reducing ink dwell time. The larger oven provides a longer thermal exposure path to ensure complete ink cure on non-absorbent substrates like PE and PP film at full operating speed.
The LQ-4CH-600 weighs approximately 5,000 kg, the LQ-4CH-800 approximately 5,500 kg, and the LQ-4CH-1000 approximately 6,000 kg.
Send us your bag size, output target and film spec — LayerQuestar will respond within 4 business hours.