The LQ-600/700/800 is a single-line automatic hot-cut T-shirt bag making machine built for medium-volume production of vest carrier bags from PE film rolls. The model suffix (600 / 700 / 800) indicates the maximum bag-making width in millimeters, allowing buyers to match the machine to their target bag size.
Driven by dual servo motors and a PLC control system with LCD display, the machine completes feeding, sealing, cutting, punching, and conveying in a single continuous pass. Photoelectric eye tracking ensures accurate cut registration on pre-printed film. A swing-type discharge system with bag-bottom shaping delivers neatly stacked bags ready for bundling, reducing downstream handling labor.
At full speed, a single 8-hour shift produces up to 72,000 bags. The wide size range — 200 to 650 mm width and length — covers everything from small convenience-store vest bags to large grocery carrier bags, making this line a practical choice for converters supplying multiple retail channels from one machine.
Core engineering decisions that determine output consistency, precision and long-term running cost.
Independent servo drives for feed and seal/cut axes hold bag length deviation within ±1 mm across the full speed range.
Full-process automation — feeding, sealing, cutting, punching, and conveying — managed from a single PLC interface with LCD display.
Optical registration sensor detects print marks on pre-printed film rolls, ensuring every cut aligns precisely with the graphic layout.
The cutting blade uses its own dedicated heating circuit with a high-precision temperature controller, enabling fast material changeovers without full system recalibration.
Finished bags are shaped at the bottom and discharged via a swing mechanism, producing neatly aligned stacks ready for bundling with minimal operator intervention.
Handles bags from 200 × 200 mm up to 650 × 650 mm — one machine covers small convenience bags through large grocery carriers without tooling changes.
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-600/700/800 |
|---|---|
| Total Power | 8–12 kW |
| Machine Weight | 2,400 kg |
| Cut Type | Hot Cut |
| Lines / Channels | 1 |
| Max Bag Width | 650 mm |
| Speed | 80–150 pcs/min |
| Film Thickness | 0.015–0.035 mm（15–35 µm） |
| Materials | HDPE, LDPE, LLDPE |
Specifications subject to change without notice. Contact LayerQuestar for the latest confirmed datasheet for this model.
Common questions about the LQ-600/700/800. For configuration-specific questions, contact our engineering team directly.
The LQ-600/700/800 runs at 80–150 pieces per minute. At full speed, a single 8-hour shift produces up to 72,000 bags. Actual speed depends on bag dimensions, film thickness, and whether photoelectric registration is active for printed film.
The LQ-600/700/800 is designed primarily for T-shirt (vest carrier) bags. It can also produce flat bottom-sealed poly bags by adjusting the fold and seal configuration. It is not suitable for woven bags, non-woven bags, or tea bags.
The machine processes HDPE, LDPE, and LLDPE film rolls in thicknesses from 15 to 35 microns. HDPE is the most common choice for standard grocery T-shirt bags; LDPE suits thicker, softer retail shopping bags; LLDPE adds puncture resistance for demanding applications.
Maximum bag width is 650 mm (25.6") and maximum bag length is 650 mm (25.6"), covering the full standard range of vest carrier bags used in grocery, retail, and food service.
Hot cut machines use a heated blade that seals and cuts the film simultaneously, producing the characteristic fused edge on T-shirt bags. Cold cut machines use an unheated blade and are better suited to applications requiring a clean, flat edge. The LQ-600/700/800 uses hot cut, which is the standard method for vest-style T-shirt bags.
Yes. The LQ-600/700/800 includes an integrated automatic punching unit that cuts the vest-style handle opening during production. The swing-type discharge system then stacks finished bags with the punch position consistently aligned.
The machine accepts film rolls up to 650 mm in lay-flat width, corresponding to the maximum bag width. Rolls should be sourced from a compatible blown film extrusion line — LayerQuestar's blown film machines produce rolls in this size range.
LayerQuestar provides a 12-month standard warranty covering the machine, plus lifelong after-sales support including remote troubleshooting, spare parts supply, on-site technical service, and operator training.
Send us your bag size, output target and film spec — LayerQuestar will respond within 4 business hours.