Drawstring Garbage Bag
Making Machine

The only difference is bag size range. The LQ-DG-800 produces bags 400–700 mm wide (suitable for household kitchen and bathroom bin liners). The LQ-DG-1000 produces bags 500–900 mm wide (suitable for commercial and outdoor waste bins up to 120 litres). Both models share the same production speed (50–160 pcs/min), total power (18 kW), machine weight (2,500 kg) and overall footprint (10 × 2.2 × 1.9 m). If your product range includes bags wider than 700 mm, you need the LQ-DG-1000.

Yes. The LQ-DG series is compatible with both PE (polyethylene) and PP (polypropylene) flat draw tape. Both materials are fed through the same tape guide system. The heat-tack seal temperature for the tape fixation points is set via the HMI and should be adjusted when switching between PE and PP tape, as the two materials have different seal temperature requirements. Tape width options are 18 mm, 20 mm and 25 mm — the tape guide insert is changed to match the tape width selected.

Yes. Coreless winding is supported as standard on the LQ-DG series. Coreless rolls eliminate the cardboard core cost and are the preferred format for many supermarket private-label buyers. Cored winding is also available — switching between coreless and cored modes requires a mandrel change on the rewinder, which takes approximately 10–15 minutes.

The LQ-DG series handles HDPE film at 7–20 µm and LDPE film at 20–50 µm. HDPE at the thinner end (7–12 µm) produces economy-grade crinkle-texture bags. LDPE at 30–50 µm produces premium soft-touch bags with higher tear strength. If your product requires film thicker than 50 µm (for example, heavy-duty contractor bags), this is outside the LQ-DG operating range and a different machine configuration would be required.

For an experienced operator, a standard bag width or length changeover typically takes 20–40 minutes depending on the degree of adjustment required. This includes repositioning the seal bar, adjusting the hem fold guide, updating the bag length and roll-count parameters on the HMI, and running a short test batch to verify seal quality. Tape width changes (e.g. from 20 mm to 25 mm tape) add approximately 10 minutes for the tape guide insert swap.

For standard household garbage bag production using HDPE or LDPE film, LayerQuestar's mono-layer blown film machine is the most common upstream pairing — it is cost-effective and straightforward to operate. For buyers who want to produce premium bags with a softer feel or who want to incorporate a recycled content (PCR) core layer, the 3-layer ABA blown film machine is the recommended upgrade. The LQ-DG series accepts film rolls from any standard blown film line, regardless of brand.

Under normal operating conditions, the LQ-DG series runs with a 2-person crew per shift. One operator monitors the HMI touchscreen, tape feed tension and seal quality; the second handles finished roll removal and stacking. A third person may be beneficial during initial setup, first-time size changeovers, or when running at maximum speed with very short bag lengths that require faster roll removal.

The highest-frequency maintenance items are: (1) seal bar Teflon tape — replace every 2–4 weeks under continuous operation; (2) cutting blades — replace when cut quality deteriorates; (3) photosensor lenses — clean weekly to prevent false triggers from film dust. These are all low-cost consumables that should be stocked at your facility. Dancer roller bearings and tape guide inserts are longer-life components that require inspection and replacement on an annual cycle under continuous operation.

No. The LQ-DG series produces bottom-seal drawstring bags. Star-seal (bottom star-seal for round bins) requires a different machine configuration with a star-seal die assembly. If your target product is a star-seal drawstring bag, please contact LayerQuestar to discuss the appropriate machine specification for your requirement.

The 72-hour factory acceptance test (FAT) runs the machine continuously at LayerQuestar's Zhejiang facility before shipment. The test verifies: production speed stability across the operating range, seal strength consistency, tape alignment accuracy at both minimum and maximum bag widths, roll-count precision, and control system response under sustained operation. A test report is issued on completion. Buyers are welcome to witness the FAT in person — please notify LayerQuestar at least 2 weeks in advance to schedule your visit.