- All
- Product Name
- Product Keyword
- Product Model
- Product Summary
- Product Description
- Multi Field Search
| Quantity: | |
|---|---|
Parameter | MYB-600 | MYB-850 | MYB-1250 |
Suitable Material | LDPE+CaCO₃ | LDPE+CaCO₃ | LDPE+CaCO₃ |
Max Film Width | 500mm | 700mm | 1100mm |
Film Thickness | 0.015–0.15mm | 0.015–0.15mm | 0.015–0.15mm |
Machine Dimension | 5200×2500×4800mm | 5200×2700×5200mm | 5500×3000×5800mm |
Electric Source | 380V/50HZ (local-adaptable) | 380V/50HZ (local-adaptable) | 380V/50HZ (local-adaptable) |
Screw Diameter | 50mm | 55mm | 60mm |
Blower Power | 3KW | 4KW | 4KW |
Take-Up Motor | Servo Motor | Servo Motor | Servo Motor |
Winder Type | Single Friction Winder | Single Friction Winder | Single Friction Winder |
Discharge Roll Mode | Manual Operation | Semi-Automatic | Automatic |
The MYB series LDPE single layer film blowing machine produces mono-layer LDPE, HDPE, and LLDPE blown film from 0.015–0.15 mm across three frame sizes. Built as an entry-level workhorse for SMEs, it delivers the clarity, flexibility, and ease of operation that first-time film producers and low-complexity packaging lines require — at the lowest capital cost in our blown film range.
Food wrap & fresh-produce bags — LDPE's natural clarity and flexibility make it the material of choice for food-contact film. The single-layer design means no layer-adhesion concerns — the film is homogeneous, safe for direct food contact, and meets clarity expectations for display packaging.
Garment & textile packaging — Clear LDPE garment bags for clothing retail, laundry, and textile export. Single-layer simplicity = consistent clarity batch to batch, with no risk of core-layer contamination clouding the film surface.
General-purpose packaging & household film — Everyday plastic bags, household wrap, and general-purpose packaging where low production cost per kg matters more than multi-layer performance. The MYB delivers reliable output at the lowest machine investment in the range.
Light-duty agricultural & nursery film — Single-season mulch film, nursery covers, and temporary greenhouse film where LDPE's flexibility and adequate UV resistance meet the application need without the cost of multi-layer construction.
| Application | Material | Recommended Model | Typical Output |
|---|---|---|---|
| Food wrap & produce bags | LDPE, 0.015–0.03 mm | MYB-600 / 850 | 50–75 kg/h |
| Garment & textile bags | LDPE, 0.02–0.05 mm | MYB-850 | 60–85 kg/h |
| General-purpose household film | LDPE/LLDPE, 0.015–0.06 mm | MYB-600 | 50–70 kg/h |
| Agricultural nursery film | LDPE/LLDPE, 0.03–0.08 mm | MYB-850 / 1100 | 65–90 kg/h |
First-time film producers starting with LDPE applications — LDPE processes at a more forgiving temperature window (150–200°C) than HDPE. If you're new to blown film extrusion, LDPE is the easiest material to learn on — and the MYB's single-screw, single-die platform gives you the simplest possible extrusion workflow.
SMEs producing food-wrap and garment-bag film — These applications need clarity and flexibility — not barrier properties or recycled content. A mono-layer LDPE machine produces exactly the film your customers need without the capital cost of multi-layer equipment.
Producers in cost-sensitive markets replacing manual or semi-automatic lines — If you're upgrading from a hand-fed or mechanically controlled machine, the MYB's PID temperature control, servo take-up, and PLC interface represent a step change in consistency — at a price point that fits SME budgets.
Producers needing recycled content in their film — Mono-layer means any recycled material, filler, or contamination is visible on the film surface. For recycled-content film with virgin-quality surfaces, see our LDPE ABA co-extrusion machine.
Shops needing high-output HDPE film — The MYB can run HDPE, but output will be lower than on an HDPE-optimized screw. For primarily HDPE production, see our HDPE single screw machine with HDPE-profiled screw geometry.
Multi-layer or barrier film applications — For EVOH, PA, or differentiated multi-layer structures, you need an ABC three-layer line.
Starting LDPE film production? Let's confirm the right setup.
Send us your target film type and gauge, daily output in kg, and clarity requirements. We'll recommend the right MYB model and tell you honestly if a single-layer machine fits — or if you'd benefit from an ABA configuration.
→ Jump to contact formScrew geometry profiled for LDPE's lower melt temperature and higher flow rate. LDPE melts at 150–200°C and flows more easily than HDPE — an over-aggressive screw would over-shear the polymer, raising melt temperature, yellowing the film, and reducing clarity. The MYB's gentler compression ratio with extended feed and metering zones melts LDPE thoroughly without degrading it. Unlike general-purpose screws that compromise between LDPE and HDPE rheology, this profile delivers the highest clarity and output from LDPE at the lowest energy input — exactly what LDPE-dominant producers need.
Ceramic heaters with independent PID control per zone maintain ±2°C — critical for LDPE clarity. LDPE yellows when melt temperature exceeds 200°C. On contactor-based systems where heaters cycle full-on/full-off, temperature oscillates 5–8°C around setpoint — pushing the melt over the yellowing threshold on every heater cycle. The PID algorithm calculates duty cycle from actual zone temperature and modulates heater output smoothly. The ceramic heaters' thermal mass damps remaining fluctuations. Result: film clarity is consistent from startup to shutdown, and from Monday morning to Saturday night.
One extruder, one die head, one material stream — the simplest blown film workflow possible. Every additional extruder adds complexity: another temperature profile to monitor, another screw to clean, another melt stream to balance. The MYB's single-screw platform gives a new operator exactly one of everything to learn. Screen changes take under 10 minutes with basic tools. Die-head cleaning is a 30-minute task. For SMEs in markets where skilled extrusion technicians are scarce, this means the shift operator handles daily production and routine maintenance without external support.
Want to know your per-kg cost before buying?
Send us your local LDPE resin cost, electricity rate, and target monthly output. We'll return a free production cost model — resin, electricity, labor, and estimated maintenance per kg — so you can project payback before committing.
→ Request your cost modelLDPE yellowing from temperature overshoot — LDPE clarity is the first thing a food-packaging buyer checks. Contactors cycling full-on cause 5–8°C overshoots that yellow the film. The MYB's PID modulation plus ceramic thermal mass keeps temperature within ±2°C — film stays clear across the full production run.
Inconsistent film gauge from manual tension adjustment — Operators on manual machines adjust nip speed by feel — gauge wanders as the shift progresses. The servo-driven take-up maintains constant speed setpoint regardless of roll diameter or material resistance — gauge consistency holds from core to outer wrap.
Training bottleneck from complex multi-extruder machines — A new operator facing a twin-extruder ABA line needs a week before running independently. The MYB's single-extruder, single-control-panel layout gets a new operator producing acceptable film in 1–2 days — critical for high-turnover shops or greenfield startups.
Maintenance downtime from inaccessible service points — On many budget machines, a screen change requires partial disassembly. The MYB's tool-free screen-changer access and bolt-on barrel flange let the operator swap screens in under 10 minutes — the machine spends more hours producing film.
| Scenario | Material | Output | Recommended Config |
|---|---|---|---|
| SME food-wrap startup, 400 kg/day | LDPE, 0.015–0.025 mm | 50–60 kg/h | MYB-600, 45mm screw, manual winder |
| Garment bag producer, 1 ton/day | LDPE, 0.02–0.04 mm | 60–80 kg/h | MYB-850, 55mm screw, corona treater |
| General packaging, 1.5 tons/day | LDPE/LLDPE blend | 65–85 kg/h | MYB-850, 55mm screw, dual winder |
| Agricultural film, 2 tons/day | LLDPE/LDPE, 0.03–0.08 mm | 70–95 kg/h | MYB-1100, 60mm screw, dual winder |
Material feeding: LDPE granules plus optional color masterbatch load into the hopper. The water-jacketed feed throat prevents bridging from premature melting.
Plasticizing: The 32:1 L/D screw conveys material through 4–6 heated zones (150–200°C for LDPE). Ceramic heaters warm progressively; the screw compresses and homogenizes the melt.
Die head extrusion: Melt passes through a screen pack and enters the spiral mandrel die. The 40Cr mirror-surface die head distributes melt into uniform annular flow.
Bubble formation & cooling: Compressed air inflates the melt into a bubble. The air ring blows cooling air to set the frost line. An optional bubble cage stabilizes for consistent gauge.
Collapsing & nip: The bubble passes through the collapsing frame to servo-driven nip rollers. Servo maintains constant speed for consistent gauge.
Winding: The torque-motor winder produces finished rolls. In-line slitting enables multi-roll output. Optional corona treater applies surface treatment before winding.
| Option | What It Does | Suited For |
|---|---|---|
| Corona treater | Raises surface energy to 38–42 dyne for printing | Film sold to printing converters |
| Automatic vacuum loader | Pneumatically conveys material from floor bins to hopper | One operator managing multiple lines |
| Internal bubble cooling (IBC) | Cools bubble from inside — both sides cooled | Adds 15–20% output without raising screw speed |
| Dual-station winder | Two winding shafts with auto cutover | Continuous lines; no roll-change downtime |
| Rotating die head | Slow rotation distributes gauge variation evenly | High-clarity film; eliminates visible gauge bands |
| Custom voltage & frequency | Built for 220V/60Hz, 440V/60Hz, or other supply | Export buyers with non-Chinese grid |
Location: Colombo, Sri Lanka — garment packaging startup
Machine: MYB-850 LDPE single layer film blowing machine
Product: Clear LDPE garment bags, 0.03 mm, 700 mm layflat
Before: Buying finished garment-bag rolls from a regional supplier at $1.38/kg. Minimum order 1 ton. Clarity inconsistent batch-to-batch — garment exporters complained that wrinkles weren't visible through hazy film for QC inspection.
After: In-house production at $0.92/kg. Clarity consistent batch to batch — garment exporter approved for direct-to-retail packaging. Payback in 10 months. Operator trained in 2 days.
15+ years building blown film lines — Mingyang Packaging Machinery Co., Ltd. manufactures in Guangdong, China, with machines in 40+ countries. We cast screws, machine barrels, and assemble die heads in-house.
CE-certified, export-ready — Every MYB machine meets CE safety and electrical standards. Documentation includes wiring diagrams, mechanical drawings, and spare parts list in English.
Factory acceptance testing — Your machine runs your specified LDPE material before shipment. We record parameters and send you the video — you see it producing film before you pay the balance.
Installation and training — One engineer travels to your site for setup and operator training (5–7 days). Designed for operators with no prior extrusion experience.
12-month warranty with stocked spares — Covers screw, barrel, gearbox, motors, heaters, and blowers. Common wear parts ship from stock within 48 hours.
LDPE, HDPE, LLDPE, and blends with up to 30% CaCO₃ filler. The 32:1 L/D screw is optimized for LDPE's lower melt temperature and higher flow rate — it processes LDPE with better clarity and output than general-purpose screws. HDPE can be run for occasional jobs but output will be 10–15% lower than on an HDPE-optimized machine.
0.015–0.15 mm thickness across layflat widths up to 1,000 mm (MYB-1100). For the thinnest gauges (0.015 mm), a draft-free production bay and consistent ambient temperature are required for bubble stability. For food-wrap applications at 0.015 mm, we recommend the MYB-600 or 850 with a well-tuned air ring.
Single-layer LDPE film has uniform optical properties throughout — no layer boundaries, no slight haze from the core. For applications where absolute clarity is the primary specification (food wrap, display packaging), single-layer LDPE delivers the lowest measurable haze. ABA matches clarity only when the recycled core is very clean and the layer ratio is optimized.
Standard MYB machines ship in 25–35 days. Custom voltage or non-standard die heads add 5–10 days. Sea freight: 15–25 days to Africa, 10–18 days to Southeast Asia, 25–35 days to South America.
A level concrete pad (footprint + 1.5 m clearance), power supply matching your voltage with a dedicated breaker, compressed air (0.6–0.8 MPa), and cooling water for the feed throat. We send the install drawing and utility checklist 2 weeks before shipment.
Mechanical: 2–3 days. Electrical & commissioning: 1–2 days. Training: 3–5 days on startup, shutdown, gauge adjustment, material changeover, and basic maintenance. Operators with no prior experience run independently by day 4.
Each shift: check gearbox oil, clean die lip of polymer buildup, check blower air filter. Weekly: inspect heater band connections, clean screen changer, check nip roller rubber. Monthly: measure screw flight clearance with a feeler gauge — exceeding 0.5 mm on a 55 mm screw means plan a replacement.
Keep extruder temperature under 200°C — yellowing begins above this. Clean the die head monthly to prevent burnt-polymer buildup that streaks onto the film. Use LDPE-compatible purge compound during material changes. Monitor the air filter — reduced cooling airflow widens gauge and can create uneven frost-line height that affects film optics.
Tell us about your production:
Film application: What are you making? (food wrap, garment bags, general packaging, agricultural film)
Material: LDPE? LLDPE blend? Filler percentage?
Clarity requirements: Is film clarity a critical specification?
Target thickness & width: Gauge in mm and layflat width
Daily output target: How many kg per day or month?
Power supply: Voltage, frequency, and phase at your factory
Destination port: For freight quotation
