From single-line entry models to 8-line high-speed cold-cut production — LayerQuestar covers every output scale for HDPE, LDPE and LLDPE vest bags. 9 models. 3 technology platforms. One supplier.
From standard HDPE supermarket vest bags to printed shopping carriers — every bag type shown here is produced on a LayerQuestar T-shirt bag making machine.
T-shirt bag making machines convert roll-fed polyethylene film into finished vest-style carrier bags — sealed, punched and stacked in a single automated pass. The same machine platform also produces flat bottom-seal bags when the punching unit is disengaged.
HDPE T-shirt bags for grocery checkout, convenience stores and market vendors. Typical thickness 12–20 micron. High-volume, fast-cycle production.
Pre-printed LDPE or LLDPE vest bags for branded retail. Photoelectric eye tracking ensures accurate print registration at full production speed.
With the punching unit disengaged, the same machine produces open-top flat bags for produce, food, garment and industrial packaging. Thickness range 10–100 micron.
Input: tubular or flat roll film (from blown film extrusion). Output: finished bags — sealed, punched, stacked and counted. Need a blown film machine?
Three questions determine your machine. Answer them in order.
This is the most fundamental technical decision. It affects bag edge quality, machine speed ceiling, and which models are available to you.
| Daily Output Target | Recommended Platform | Typical Models | Cut Type |
|---|---|---|---|
| Under 500,000 bags/day | Standard Single-Line | LQ-600 / LQ-700 / LQ-800 | Hot Cut |
| 500,000 – 1,000,000 bags/day | Dual-Line Mid-Speed | LQ-450×2 / LQ-500×2 / LQ-2LR Series | Hot Cut |
| 1,000,000 – 2,000,000 bags/day | High-Speed Cold Cut | LQ-430×2 / LQ-2L4L Series | Cold Cut |
| 2,000,000 – 5,000,000 bags/day | Multi-Line Cold Cut | LQ-2L6L / LQ-2L8L-1200 | Cold Cut |
Output estimates based on 8-hour shift at 80% OEE. Actual output varies by bag size, film thickness and material. All figures are indicative — contact LayerQuestar for a production plan specific to your bag dimensions.
Standard grocery and convenience store T-shirt bags. Covered by all dual-line and multi-line models.
Large retail shopping bags and wide flat bags. LQ-600/700/800 single-line and LQ-2LR-700/800 series.
Extra-large bags and wide flat packaging. LQ-2L4L-800 and LQ-2L4L-1000 cold-cut series.
Select a platform below to explore the models. Every model ships after a 72-hour continuous factory run test.
-169.webp)
Hot Cut
Entry-level single-line machine for small-to-medium factories. Wide bag width range (200–650mm) covers everything from small produce bags to large retail carriers. PLC + dual servo control, photoelectric eye tracking for printed film.
Hot Cut
Dual-channel operation doubles output from a single compact machine. Microcomputer control with stepper motor (servo optional). Auto counting, auto drilling, auto adhesive pasting. Requires X626 punching machine add-on for T-shirt handle holes.
-169.webp)
Hot Cut
Full servo dual-line machine with independent PLC control per line. 420 bags/min combined output. Swing-type discharge with bag bottom shaping. Auto punching, folding and conveyor belt output. Photoelectric eye for printed film registration.
Hot Cut
Two-layer rolling platform available in four width configurations. The -500 and -600 models run dual-lane; the -700 and -800 run single-lane for wider bags up to 700mm. All share the same 5kW platform. Widest film thickness range in the lineup: 10–100 micron.
-169.webp)
Cold Cut
Flagship Speed
The fastest single-machine in the LayerQuestar T-shirt bag lineup. Cold-cut technology delivers a clean, undistorted bag opening at 700 bags per minute combined output. Dual servo motors with independent PLC control per line. Integrated punching with auto waste-collection conveyor. Swing-type discharge with bag bottom shaping for neat stacking.
Cold Cut
Double-layer, 4-line configuration processes two film layers simultaneously and produces 4 bags per cycle. PLC control with photoelectric tracking. Three width variants: LQ-2L4L-600 (550mm, highest speed), LQ-2L4L-800 (750mm), LQ-2L4L-1000 (950mm, widest). All run at 1.5kW — notably energy-efficient for this output class.
Cold Cut
Six simultaneous production lines from a single machine. Double-layer processing means effective output of up to 1,200 bags per minute at peak speed. Servo motor control, PLC LCD display, photoelectric eye tracking. Swing discharge with bottom shaping. Compatible with HDPE, LDPE, LLDPE and non-woven fabric.
Cold Cut
Max Output
The highest-output T-shirt bag machine in the LayerQuestar lineup. Eight parallel lines with double-layer processing deliver maximum bags per square metre of factory floor. Designed for large-scale bag factories producing small-format T-shirt bags at the lowest cost per bag. Full servo and PLC control with photoelectric registration.
All 9 models side by side. Scroll horizontally on mobile.
| Parameter | LQ-600/700/800 | LQ-450×2 | LQ-500×2 | LQ-2LR-500 | LQ-2LR-600 | LQ-2LR-700 | LQ-2LR-800 | LQ-430×2 | LQ-2L4L-600 | LQ-2L4L-800 | LQ-2L4L-1000 | LQ-2L6L | LQ-2L8L-1200 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cut Type | Hot Cut | Hot Cut | Hot Cut | Hot Cut | Hot Cut | Hot Cut | Hot Cut | Cold Cut | Cold Cut | Cold Cut | Cold Cut | Cold Cut | Cold Cut |
| Production Lines | 1 | 2 | 2 | 2 | 2 | 1 | 1 | 2 | 4 | 4 | 4 | 6 | 8 |
| Max Bag Width | 200–650mm | 400mm ×2 | 450mm ×2 | 400mm ×2 | 500mm ×2 | 600mm | 700mm | 400mm ×2 | 550mm | 750mm | 950mm | 320mm ×6 | 195mm ×8 |
| Max Bag Length | 200–650mm | 10–999mm | 650mm | 1,000mm | 1,000mm | 1,000mm | 1,000mm | 650mm | 950mm | 950mm | 950mm | 650mm | — |
| Speed (per line) | 80–150/min | 120–200/min | 210/min | 20–200/min | 20–200/min | 20–200/min | 20–200/min | 350/min | 30–120/min | 30–100/min | 30–100/min | 30–100/min | 30–100/min |
| Film Thickness | 15–35 µm | 10–50 µm | 10–25 µm | 10–100 µm | 10–100 µm | 10–100 µm | 10–100 µm | 10–25 µm | — | — | — | — | — |
| Machine Weight | 2,400 kg | 900 kg | 2,700 kg | 800 kg | 800 kg | 800 kg | 800 kg | — | 800 kg | 1,000 kg | 1,200 kg | 2,000 kg | 3,000 kg |
| Materials | HDPE LDPE LLDPE | HDPE LDPE LLDPE | HDPE LDPE LLDPE | HDPE LDPE | HDPE LDPE | HDPE LDPE | HDPE LDPE | HDPE LDPE LLDPE | HDPE LDPE PP | HDPE LDPE PP | HDPE LDPE PP | HDPE LDPE LLDPE | HDPE LDPE LLDPE |
— = data pending client verification. Film thickness range for LQ-2L4L and LQ-2L8L series: [NEEDS CLIENT DATA]. All specifications subject to configuration and operating conditions.
Every LayerQuestar T-shirt bag machine — regardless of platform — is built on the same core automation and control architecture.
All models run PLC-based computer control with LCD touchscreen interface. Servo motor drive enables automatic bag length setting — no manual adjustment needed between production runs. Program parameters are stored and recalled instantly.
Photoelectric sensors detect printed registration marks on pre-printed roll film and automatically adjust feed length to keep every bag's design correctly positioned. Auto-stop with alarm triggers if registration error exceeds tolerance — preventing waste from misaligned cuts.
The cutting blade uses independent current heating with a high-precision temperature controller. Temperature is maintained automatically — consistent sealing quality across varying film thicknesses and ambient conditions, without operator intervention.
Swing-type discharge system combined with a bag bottom shaping device ensures finished bags are neatly stacked with consistent alignment. Handle punch holes land at the correct position every cycle. Conveyor belt output moves stacked bags to downstream packing without manual handling.
Automatic bag counting with preset quantity alarm. Machine auto-stops when the target count is reached. Overload, over-voltage and over-current protection are built in across all models. Label-loss auto-stop prevents waste when printed film registration marks are missed.
Match your operation profile to the right platform. If you are unsure, contact LayerQuestar — we will recommend a configuration based on your bag dimensions and daily output target.
Single-line, straightforward operation. Wide bag size range covers most retail bag formats. Lowest complexity — 2 operators can run the line. Best entry point for first-time factory owners.
Dual-line operation doubles output from the same floor space. Servo control and photoelectric tracking handle printed film reliably. Ideal for factories supplying supermarket chains or growing retail clients.
Single-lane operation for bags up to 700mm wide. The widest hot-cut models in the lineup. Suitable for large grocery bags, department store carriers and wide flat bags. Compact 800kg frame, 5kW power.
700 bags per minute combined output. Cold-cut technology for cleaner bag edges. The highest single-machine speed in the LayerQuestar lineup. For factories running 2–3 shifts supplying large retail chains or export markets.
6 or 8 simultaneous production lines from a single machine. Double-layer processing maximises bags per square metre of floor space. For industrial-scale operations producing small-format T-shirt bags at the lowest cost per bag.
Tell LayerQuestar your bag dimensions, daily output target and material — we will recommend the right model and configuration, with a reference production plan at no cost.
Talk to an EngineerEvery LayerQuestar bag making machine ships with a defined support structure — not a vague promise.
12-month warranty on all mechanical and electrical components from the date of commissioning. Wear parts (blades, sealing wires, belts) are excluded from warranty but are stocked for immediate dispatch.
Sealing wires, cutting blades, conveyor belts and punching dies are held in stock at our Zhejiang facility. Standard wear parts ship within 3 business days. Critical parts can be air-freighted on request.
All PLC-controlled models support remote access diagnostics via video call and screen sharing. Our engineering team can review fault codes, parameter settings and alarm logs in real time — resolving most issues without an on-site visit.
Commissioning documentation and video training are provided with every machine. On-site installation support is available — contact LayerQuestar for engineer dispatch arrangements and associated costs for your region.
Common questions from buyers evaluating T-shirt bag making machines.
Hot cut machines seal and cut the bag in a single heated operation. The cut edge has a slight heat-fused finish, which is acceptable for most retail and grocery bags. Cold cut machines seal the bag bottom with heat, then cut the open top with a cold blade — producing a cleaner, undistorted edge. Cold cut is preferred for quality retail bags and runs at higher speed. Cold cut machines also support multi-line configurations (4, 6 or 8 lines) for maximum output.
Single-line models (LQ-600/700/800) can be operated by 1–2 people — one to monitor the machine and one to handle finished bag stacks. Dual-line and multi-line models typically require 2–3 operators depending on whether downstream packing is manual or automated. All models use PLC control with stored programs, so changeover between bag sizes does not require specialist technical knowledge.
All models are compatible with HDPE and LDPE film. Most models also support LLDPE. The LQ-2L4L series additionally supports PP film. The LQ-2L6L supports non-woven fabric in addition to standard polyethylene films. Film thickness compatibility varies by model — from 10 micron (thin HDPE grocery bags) up to 100 micron (LQ-2LR series). Confirm your film specification with LayerQuestar before selecting a model.
Yes. All LayerQuestar T-shirt bag machines include a photoelectric eye (colour mark sensor) that detects printed registration marks on pre-printed roll film and automatically adjusts the feed length to maintain correct print positioning. If the sensor misses a registration mark, the machine auto-stops and triggers an alarm to prevent wasted film and misaligned bags.
Bag size range varies by model. The LQ-600/700/800 covers bag widths from 200mm to 650mm — one of the widest ranges in the lineup. Multi-line cold cut models (LQ-2L8L-1200) are optimised for small-format bags with sealing widths down to 120mm per line. For bag length, the LQ-450×2 supports lengths from 10mm to 999mm, making it suitable for very short bags. Contact LayerQuestar with your specific bag dimensions for a model recommendation.
No. The bag making machine takes roll film as input — you can source roll film from an external supplier. However, producing your own film with a blown film machine gives you full control over thickness, material blend and cost per kilogram. LayerQuestar supplies both blown film machines and bag making machines, so a complete in-house production line is available from one supplier. See our Blown Film Machine range for compatible upstream equipment.
On servo-controlled models, bag length changeover is done via the PLC touchscreen — the operator enters the new length and the machine adjusts automatically. No mechanical adjustment is required for length changes within the model's range. Width changeover requires a physical film roll change and guide adjustment, which typically takes 15–30 minutes depending on operator experience. Stored programs allow frequently-used bag formats to be recalled instantly.
Every LayerQuestar bag making machine runs a 72-hour continuous production test at our Zhejiang factory before shipment. The test verifies speed consistency, sealing quality, counting accuracy, alarm functions and fault protection systems under sustained operating conditions. Test records are available on request. Buyers are welcome to witness the factory acceptance test in person — contact LayerQuestar to arrange a visit.
Share your bag dimensions, daily output target and material — LayerQuestar will recommend the right model with a reference production plan, at no cost.