The LQ-2L6L is a double-layer 6-line cold-cut automatic T-shirt bag making machine designed for high-volume production of vest carrier bags and flat bags from polyethylene film. Six independent production lines run simultaneously from a single film feed. With double-layer processing producing two bags per cutting cycle per line, the machine delivers a combined maximum output of 600 bags per minute — approximately 288,000 bags per 8-hour shift at standard operating efficiency.
Cold cutting separates sealing and cutting into two sequential operations, producing clean, distortion-free edges on thin HDPE film at sustained high speeds. Each line is servo-driven with PLC and LCD display control. Photoelectric eye tracking maintains accurate cut registration on pre-printed film, with auto-stop on mark loss. The integrated automatic punching unit produces T-shirt handle cutouts in-line across all six lines simultaneously — no secondary punching station required.
A swing-type discharge system with bag-bottom shaping delivers neatly stacked finished bags ready for counting and bundling. At 7,500 × 1,750 mm footprint and 2,000 kg, the LQ-2L6L delivers industrial-scale bag output in a machine envelope suited to dedicated bag manufacturing facilities supplying grocery chains, retail outlets, and food service operators.
Core engineering decisions that determine output consistency, precision and long-term running cost.
Six independent bag-making lines run from a single film feed, delivering up to 600 bags per minute combined within a 7,500 × 1,750 mm machine footprint.
Sealing and cutting are performed as separate operations. The cold-cut blade produces clean, shrink-free edges on thin HDPE film at sustained high speeds — eliminating the film distortion common in hot-cut configurations.
Pre-folded two-layer film is processed through each line simultaneously, producing two finished bags per cutting cycle and maintaining stable handling of thin HDPE film that would be difficult to control as a single layer at speed.
Each line is servo-driven with CNC length setting and PLC/LCD interface, enabling precise bag length repeatability and fast changeover between bag sizes without manual adjustment.
Optical registration sensors track print marks on pre-printed film across all lines, adjusting feed length in real time. Auto-stop with alarm triggers immediately on mark loss to prevent wasted printed material.
T-shirt handle cutouts are punched in-line during production across all 6 lines simultaneously — no secondary punching station or additional floor space required.
Finished bags are bottom-shaped and discharged via swing mechanism into neat, aligned stacks across all lines, reducing downstream stacking labour at high output rates.
With the punching unit disengaged, the machine switches to flat bottom-seal bag production — supermarket produce bags, food packaging bags, and general poly bags — without changes to the sealing or cutting system.
Confirmed output types for this machine configuration. Actual results depend on film specification and tooling selection.
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All specifications are under standard operating conditions and may vary depending on film material, bag size and configuration.
| Model Number | LQ-2L6L |
|---|---|
| Total Power | 12–20 kW |
| Machine Weight | 2,000 kg |
| Cut Type | Cold Cut |
| Lines / Channels | 6 |
| Max Bag Width | 320 mm |
| Speed | 30–100 pcs/min × 6 |
| Film Thickness | 0.010–0.030 mm（10–30 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-2L6L. For configuration-specific questions, contact our engineering team directly.
The machine runs 6 lines simultaneously at 30–100 pcs/min per line, with double-layer processing producing two bags per cycle per line. Combined maximum output is 600 bags per minute. At 80% operational efficiency over an 8-hour shift, this produces approximately 288,000 finished bags per shift.
Double-layer refers to the film feed configuration: pre-folded film enters each line as two stacked layers, producing two finished bags per cutting cycle. This doubles effective output per line and improves handling stability for thin HDPE film at high speeds.
Cold cutting performs sealing and cutting as two separate operations — bags are heat-sealed first, then cut by a downstream blade. This produces cleaner edges on thin HDPE film and supports higher sustained speeds. Hot cutting seals and cuts simultaneously and is better suited to thicker LDPE films where a fused edge is acceptable.
Each of the 6 lines produces bags from 120 mm to 320 mm in width and up to 650 mm in length, covering standard convenience-store, supermarket checkout, and food-service T-shirt bag sizes.
Yes. With the punching unit disengaged, the machine produces flat bottom-seal bags across all 6 lines. No changes to the sealing or cutting system are required when switching between T-shirt bag and flat bag mode.
Yes. Each line is equipped with a photoelectric eye tracking system that reads registration marks on pre-printed film and automatically adjusts the cut position to maintain consistent print alignment on every bag. The machine stops and triggers an alarm if registration marks are lost.
The LQ-2L6L runs 6 lines versus 8 on the LQ-2L8L-1200, giving approximately 75% of the peak output at a lower machine weight (2,000 kg vs. 3,000 kg). The 6-line configuration suits high-volume operations that do not yet require the full capacity of an 8-line machine, or facilities with tighter floor space or power constraints.
The LQ-2L6L uses a servo motor drive system with PLC control and LCD display. Bag length is set via computer programming with CNC precision. Photoelectric eye sensors handle print registration on pre-printed film, with automatic shutdown and alarm on registration errors.
Send us your bag size, output target and film spec — LayerQuestar will respond within 4 business hours.