Soft loop, patch handle, die-cut and draw tape bags — four mechanically distinct formats integrated into a single servo-driven production line. One capital investment. Four market segments.
The LQ-HB-800 integrates four mechanically distinct sub-systems into a single frame. Each format uses its own dedicated mechanism — not a die swap, but a full sub-assembly switch — giving converters genuine multi-market capability from a single machine investment.
60 pcs/min
A separate film strip is formed into a loop, transported and heat-welded onto the bag opening by a dedicated pneumatic loop unit. Produces the premium soft-touch handle associated with fashion retail and boutique packaging.
70 pcs/min
A PE reinforcing patch is heat-applied over the handle zone before the hand hole is die-cut through both layers. The patch prevents tearing under load — the standard format for supermarkets, department stores and promotional bags.
100 pcs/min
A high-speed steel knife punches the handle opening directly through the sealed bag in a single stroke. No reinforcement patch required. The simplest mechanism on the line — and the fastest, at 100 pcs/min.
100 pcs/min
A drawstring is automatically fed and inserted into the folded bag opening before sealing, creating a closeable bag. Covers both premium drawstring retail bags and the high-volume bin liner market — one of the largest repeat-order segments globally.
For a converter serving multiple retail segments, the LQ-HB-800 eliminates the need to purchase and maintain four separate machines. Each format uses a dedicated sub-assembly — the soft loop format uses a pneumatic loop-forming and welding unit; patch handle uses a PE film applicator and die-cutting module; die-cut uses a high-speed steel punch; draw tape uses an automatic string-insertion device. This architecture consolidates capital investment without sacrificing format-specific production quality.
From film roll to finished stacked bag — five production stages, with the "E" type sealing device at the mechanical centre of every format.
Pre-printed or plain film roll is loaded onto the unwind station. Servo-controlled tension ensures consistent feed speed regardless of roll diameter.
The proprietary E-shaped sealing bar simultaneously folds and heat-seals both the upper and lower bag opening edges inward in a single pass — the mechanical centrepiece of the LQ-HB-800.
The active sub-assembly engages: loop welding unit for soft loop, patch applicator for patch handle, steel punch for die-cut, or string-insertion device for draw tape.
Point sealing and hot cutting with constant-temperature self-control. The photoelectric tracking system monitors registration; automatic shutdown triggers on label loss.
The oscillating auto-stacker collects finished bags in neat, counted batches. A settable counting alarm stops the line automatically at the target batch quantity.
Conventional bag-making machines fold and seal the bag opening in two separate passes: first the upper edge, then the lower. Each pass introduces a small alignment tolerance. Over a production run of 40,000 bags, these tolerances accumulate into visible inconsistency at the bag opening — the most visible quality point on any handle bag.
The LQ-HB-800's E-shaped sealing bar is named for its cross-sectional profile: three parallel contact surfaces that engage the upper fold, the lower fold, and the inner heat-seal zone simultaneously in a single mechanical stroke. The result is a reinforced, clean-finished opening with zero inter-pass misalignment — a critical quality requirement for soft loop and patch handle attachment.
All speed figures are reference values measured under standard test conditions: medium bag size (350×420mm) and medium film thickness (35 μm). Actual output varies with bag dimensions, film material and operator settings.
| Parameter | Value | Notes |
|---|---|---|
| Model | LQ-HB-800 | — |
| Bag Width | 250–650 mm | All formats |
| Bag Length | 250–650 mm | All formats |
| Film Thickness | 0.02–0.05 mm (20–50 μm) | PP / OPP / HDPE / LDPE / BOPP |
| Total Power | 8 kW | — |
| Power Supply | 380V / 50Hz / 3-phase | Other voltages available on request |
| Machine Dimensions | 7,600 × 3,000 × 1,850 mm | L × W × H |
| Machine Weight | 3,000 kg | Heavy-duty frame construction |
| Drive System | Servo motor | Full-line servo drive |
| Control System | Touch screen + pneumatic computer | Preset bag width, auto counting alarm |
| Factory Run Test | 72 hours | All four formats verified before shipment |
| Format | Speed | 8-hr Shift Output (85% efficiency) | Monthly Output (22 days · 1 shift) | Typical Film |
|---|---|---|---|---|
| Soft Loop Handle | 60 pcs/min | ~24,480 bags | ~538,560 bags | LDPE / PP · 40–50 μm |
| Patch Handle | 70 pcs/min | ~28,560 bags | ~628,320 bags | LDPE / HDPE · 30–50 μm |
| Die-Cut Handle | 100 pcs/min | ~40,800 bags | ~897,600 bags | HDPE / LDPE / BOPP · 20–40 μm |
| Draw Tape | 100 pcs/min | ~40,800 bags | ~897,600 bags | HDPE / LDPE · 20–40 μm |
The LQ-HB-800 is a multi-format machine optimised for converters serving multiple retail segments. Understanding where it excels — and where a dedicated machine is a better choice — will save you from a costly mismatch.
The most common decision converters face: buy one LQ-HB-800 or buy two dedicated single-format machines. Here is how the key variables compare.
| Evaluation Factor | LQ-HB-800 (One Machine) | Two Dedicated Machines |
|---|---|---|
| Capital Investment | 1× machine cost | 2× machine cost |
| Floor Space | 7.6 × 3.0 m = 22.8 m² | ~2 × 14 m² + aisle = ~35 m² |
| Operators per Shift | 2 operators | 2–4 operators |
| Format Changeover | ~30 min per switch | No changeover needed |
| Max Speed (Soft Loop) | 60 pcs/min | 80–120 pcs/min (dedicated) |
| Formats Covered | 4 formats | 2 formats (one per machine) |
| Best For | Multi-format · mid-volume | Single-format · high-volume |
For a converter producing two or more handle bag formats at combined monthly volumes below 1.5 million bags, the LQ-HB-800 typically offers a lower total cost of ownership than two dedicated machines. The capital saving, reduced floor space, and single-operator requirement offset the speed differential in most mid-volume production scenarios.
Operator requirements, format changeover procedure and downstream compatibility — what day-to-day production looks like.
Switching between handle formats requires activating the relevant sub-assembly module and recalibrating sealing temperature, punching position and film tension parameters. On the LQ-HB-800, this takes approximately 30 minutes per format switch.
The touch screen's preset bag-width function stores previously used parameters for each format, reducing recalibration time on repeat jobs. Factor changeover time into production scheduling when planning mixed-format runs within a single shift.
Every LQ-HB-800 is built to the same component specification and verified through a 72-hour continuous factory run test before shipment.
Full-line servo drive delivers precise speed control across all four formats. Lower mechanical stress than cam-driven systems, reduced maintenance intervals and faster speed stabilisation after format changeover.
E-shaped sealing bar completes upper fold, lower fold and inner heat-seal in a single stroke. Produces a reinforced, clean-finished bag opening with consistent geometry across all production speeds.
The soft loop sub-assembly uses pneumatic control for loop cutting, forming and welding. Precise pneumatic actuation ensures consistent loop positioning and weld strength across all bag sizes within the 250–650mm range.
Optoelectronic detection and scanning tracking system monitors print registration throughout the run. Automatic shutdown triggers immediately on label loss, preventing wasted film and mis-cut bags.
Full touch screen interface with preset bag-width storage. Recall previously configured parameters for each format and size combination, reducing changeover recalibration time. Auto counting alarm stops the line at target batch quantity.
Every LQ-HB-800 undergoes a 72-hour continuous factory run test before shipment. All four handle formats are verified during the test cycle — soft loop, patch handle, die-cut and draw tape — confirming that every sub-assembly performs to specification under sustained production conditions.
The test covers sealing temperature stability, servo speed consistency, photoelectric tracking accuracy, auto-counting reliability and format changeover procedure. Only machines that complete the full 72-hour cycle without fault are released for shipment.
LayerQuestar's after-sales commitment covers the full service life of the LQ-HB-800 — from installation through to long-term parts supply.
Full machine warranty covering manufacturing defects on all mechanical and electrical components. Warranty period begins from the date of commissioning at the buyer's facility.
LayerQuestar engineers provide on-site installation, commissioning and operator training. All four format sub-assemblies are demonstrated and verified with the buyer's own film material before handover.
Fast-wear consumables available directly from LayerQuestar. Recommended items to keep in stock:
LayerQuestar's engineering team provides remote troubleshooting via video call, WhatsApp and email. Covers fault diagnosis, parameter optimisation and format changeover guidance. On-site service visits available for major commissioning or complex fault resolution.
If your application requires a dedicated single-format line or a different bag type entirely, these are the appropriate machines to consider.
Common questions from buyers evaluating the LQ-HB-800 multi-function handle bag making machine.
The LQ-HB-800 produces four handle bag formats: soft loop handle bags, patch handle bags, die-cut handle bags and draw tape (drawstring) bags. Each format uses a dedicated mechanical sub-assembly integrated into the machine frame. The machine can also be configured as a single-format dedicated line if only one bag type is required.
The "E" type hot cutting edge sealing device is named for the E-shaped cross-section of its sealing bar. It simultaneously folds and heat-seals both the upper and lower bag opening edges inward in a single mechanical stroke — replacing the two-pass fold-then-seal sequence used in conventional machines. This eliminates inter-pass misalignment, produces a consistently clean and reinforced bag opening, and provides a stronger base for handle attachment in soft loop and patch handle formats.
Format changeover on the LQ-HB-800 takes approximately 30 minutes. This covers activating the relevant sub-assembly module and recalibrating sealing temperature, punching position and film tension. The touch screen's preset bag-width recall function stores previously used parameters for each format, reducing recalibration time on repeat jobs. Factor this changeover window into production scheduling when planning mixed-format runs within a single shift.
The LQ-HB-800 is compatible with PP, OPP, HDPE, LDPE and BOPP films in thicknesses from 0.02mm to 0.05mm (20–50 μm). BOPP compatibility is significant for converters producing high-clarity, stiff-feel premium retail bags — a material that many standard bag machines cannot process reliably. Film should be pre-printed on a flexographic press before loading if printed bags are required.
The LQ-HB-800 runs at 60 pcs/min in soft loop handle mode, measured under reference conditions of a 350×420mm bag at 35 μm film thickness. At 85% operational efficiency over an 8-hour shift, this produces approximately 24,480 bags. Dedicated single-format soft loop machines can reach 80–120 pcs/min, so if your operation requires only soft loop bags at sustained high volume, a dedicated machine may be more appropriate.
A dedicated single-format machine is worth evaluating when: (1) you produce only one bag type and monthly volume exceeds approximately 1.5 million bags; (2) you need sustained speeds above 100 pcs/min on a single format; or (3) your production schedule cannot accommodate a 30-minute changeover window. For converters producing two or more formats at combined monthly volumes below 1.5 million bags, the LQ-HB-800 typically offers a lower total cost of ownership through reduced capital investment, smaller floor footprint and single-operator requirements.
The LQ-HB-800 requires 2 operators per shift under normal production conditions — one machine operator managing the control panel and one assistant handling material loading and finished bag collection. No advanced technical background is required for daily operation. Full operator training is provided during on-site commissioning by LayerQuestar engineers.
Yes. The LQ-HB-800 can be configured as a single-format dedicated line for buyers who currently need only one bag type but want the option to add additional formats in the future as their business grows. Contact LayerQuestar to discuss which sub-assembly modules are appropriate for your current production requirements and future expansion plans.
Share your target formats, monthly volume and film specification. LayerQuestar will propose the right configuration — whether that is a full four-format LQ-HB-800 or a single-format dedicated line.