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| Quantity: | |
|---|---|
Parameter | MYB-600 | MYB-1250 | MYB-1400 |
Suitable Material | LDPE+CaCO₃ | LDPE+CaCO₃ | LDPE+CaCO₃ |
Max Film Width | 500mm | 1100mm | 1250mm |
Film Thickness | 0.015–0.15mm | 0.015–0.15mm | 0.015–0.15mm |
Machine Dimension | 5200×2500×4800mm | 5500×3000×5800mm | 5500×3000×6500mm |
Electric Source | 380V/50HZ (local-adaptable) | 380V/50HZ (local-adaptable) | 380V/50HZ (local-adaptable) |
Screw Diameter | A:50mm / B:50mm | A:55mm / B:55mm | A:60mm / B:60mm |
Blower Power | 4KW | 5.5KW | 7.5KW |
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 | Automatic | Automatic |
The MYB series LDPE ABA co-extrusion film blowing machine produces three-layer A/B/A blown film with an LDPE-rich formulation — the middle layer carrying up to 30% recycled or CaCO₃-filled material while virgin LDPE outer layers deliver the clarity, flexibility, and surface gloss that LDPE is valued for. It covers 0.015–0.15 mm across three frame sizes up to 1,250 mm layflat, with a maximum output of 200 kg/h.
Food-grade packaging film — LDPE outer layers provide the clarity and flexibility needed for fresh produce bags, bread bags, and snack wrappers. The ABA structure keeps recycled content sealed in the core — the food-contact surface is virgin LDPE, meeting hygiene standards without sacrificing material cost savings.
Agricultural greenhouse & mulch film — LDPE's natural flexibility and UV-stabilized outer layers with recycled core. The ABA structure delivers the durability and weather resistance required for multi-season greenhouse covers at a lower material cost than 100%-virgin film.
E-commerce express & protective packaging — Tough, flexible LDPE film with recycled core for courier bags and protective wrap. The LDPE outer layers provide puncture resistance; the core absorbs low-cost filler or recycled material — reducing per-bag cost by up to 30%.
High-clarity retail & display packaging — LDPE's natural transparency combined with virgin outer layers for garment bags, textile wraps, and retail display film where product visibility drives purchase decisions. Recycled content in the core is invisible to the customer.
| Application | Recommended Model | Layer Ratio (A/B/A) | Output (LDPE, 0.03 mm) |
|---|---|---|---|
| Food-grade packaging film | MYB-600 / 1250 | 25%/50%/25% | 100–140 kg/h |
| Agricultural greenhouse film | MYB-1250 / 1400 | 20%/60%/20% | 120–170 kg/h |
| E-commerce express bags | MYB-1250 | 30%/40%/30% | 110–150 kg/h |
| Retail display & garment wrap | MYB-600 | 30%/40%/30% (high clarity) | 90–120 kg/h |
LDPE-dominant film producers with material cost pressure — If your product mix is 70%+ LDPE-based film, this machine's screw geometry is optimized for LDPE's lower melt temperature (150–200°C) and higher melt-flow characteristics — you'll get better output per kWh than running LDPE on an HDPE-optimized ABA line.
Food-packaging converters needing clarity at lower cost — Recycled-content film usually means a clarity compromise. The ABA structure puts virgin LDPE on both outer surfaces — the film looks and performs like all-virgin while the customer's food touches only virgin material.
Agricultural film suppliers under seasonal demand pressure — Greenhouse and mulch film orders spike by planting season. The MYB-1400 at 200 kg/h gives you the surge capacity to fill seasonal orders without adding a second machine — and the recycled core keeps material costs manageable when resin prices rise during peak demand.
E-commerce packaging manufacturers — Courier bags and protective wrap are high-volume, cost-sensitive products. The LDPE ABA structure gives you the flexibility and toughness the courier industry demands at 25–30% lower material cost vs. all-virgin LDPE film.
Producers running primarily HDPE — If your material mix is predominantly HDPE, our HDPE-optimized ABA machine has screw geometry profiled for HDPE's higher melt temperature and viscosity — you'll get more output from an HDPE-tuned line.
Shops running 100% virgin LDPE with no recycled content — If recycled or filled material isn't in your cost model, a single-screw mono-layer machine costs less to buy and maintain. The ABA premium only pays back when you use the core layer for lower-cost material.
Producers needing EVOH or PA barrier layers — LDPE ABA is not designed for oxygen or moisture barrier — it's a polyolefin-only co-extrusion. For barrier film, see our ABC three-layer line.
How much can LDPE ABA save on your material bill?
Send us your virgin LDPE cost per kg, available recycled or off-spec material cost, and monthly film output in tons. We'll calculate your monthly material savings and show the payback timeline for switching from mono-layer to ABA.
→ Jump to contact formA and B extruder screws profiled for LDPE rheology — 150–200°C range, higher melt-flow than HDPE. LDPE melts faster and flows more easily than HDPE, but it's sensitive to overheating — an HDPE-profiled screw would over-shear LDPE, degrading clarity. The MYB LDPE screws use a gentler compression ratio with longer feed and metering zones — thorough melting without over-shearing. Unlike general-purpose ABA lines where screw compromise costs 10–15% output on LDPE, these screws are tuned for the material you actually run.
Servo motors on both extruders and take-up — draw only the torque required for actual load. Fixed-speed AC motors consume near-rated power whether running 0.015 mm film at 50 kg/h or 0.10 mm at 150 kg/h. Servo drive matches power to the load — measured savings average 20% vs. AC-motor ABA lines. At 5,000 hours/year and $0.10/kWh, that's roughly $3,000–5,000/year in electricity alone.
Independent temperature per extruder — virgin LDPE outer layers at clarity-optimal temp, recycled core runs hotter for homogenization. LDPE clarity degrades above 200°C — the polymer yellows, haze increases. The MYB runs A extruders at 160–185°C (optimal clarity) while B processes recycled material at 185–200°C (optimal contaminant dispersion). Unlike shared-temperature machines where you compromise — sacrificing both clarity and core homogenization — this delivers film visually indistinguishable from 100%-virgin LDPE.
Want to see your actual savings on LDPE film?
Send us your virgin LDPE cost, recycled material cost, and monthly tonnage. We'll return a free ABA payback model — material savings, electricity reduction from servo drive, and month-by-month ROI projection.
→ Request your payback modelHaze and yellowing on recycled-content LDPE film — Running recycled PE in mono-layer produces visible haze and yellowish tint — rejected by food-packaging buyers. The ABA structure seals recycled material between two virgin LDPE layers — clarity and color at the film surface match all-virgin specifications.
LDPE clarity loss from over-temperature — LDPE yellows above 200°C. On single-extruder machines, recycled material requiring higher temperatures also overheats the virgin material. The MYB's independent extruder temperature zones keep A layers at 160–185°C for clarity while B runs at 185–200°C for recycled material.
Stretch-film puncture from inconsistent core material — Post-industrial recycled LDPE contains gel particles that create thin spots — the film punctures during pallet wrapping. The 32:1 L/D barrier screw in the B extruder disperses gel particles below the puncture-causing threshold.
Peak-season output bottlenecks — Agricultural film orders cluster by planting season. The MYB-1400 at 200 kg/h produces in one shift what a 100 kg/h mono-layer line needs two for — seasonal surge capacity without adding a second machine.
| Scenario | Layer Ratio (A/B/A) | Output | Recommended Config |
|---|---|---|---|
| Food-grade film, 3 tons/day | 25/50/25 (virgin outer, recycled core) | 100–130 kg/h | MYB-1250, 55/55mm, corona treater |
| Agricultural film, 5+ tons/day | 20/60/20 (recycled core) | 140–180 kg/h | MYB-1400, 60/60mm, IBC, dual winder |
| E-commerce bags, 3 tons/day | 30/40/30 (CaCO₃-filled core) | 110–140 kg/h | MYB-1250, 55/55mm, dual winder |
| High-clarity retail wrap | 30/40/30 (virgin outer, minimal recycled) | 90–110 kg/h | MYB-600, 50/50mm, corona treater |
Dual material feeding: Extruder A hopper: virgin LDPE for outer layers. Extruder B hopper: recycled LDPE, CaCO₃-filled compound, or blend. Optional auto loaders feed both hoppers independently.
Independent plasticizing: Extruder A runs at 160–185°C for optimal LDPE clarity. Extruder B runs at 185–200°C for thorough recycled-material homogenization. Both screws are 32:1 L/D, profiled for LDPE rheology.
ABA co-extrusion die: Both melt streams enter the co-extrusion die — internal channel geometry stacks them into an A/B/A sandwich. Virgin LDPE outer layers completely encapsulate the core.
Bubble formation & cooling: The three-layer melt tube inflates into a bubble. Dual-lip air ring cools from outside; optional IBC cools from inside. Bubble cage stabilizes frost line for consistent gauge.
Collapsing & nip: The bubble passes through collapsing frame and servo-driven nip rollers. Servo holds constant speed — no speed drift, no gauge variation from nip-speed inconsistency.
Winding: Torque-motor winder produces finished rolls. Single or dual-station winder. Optional corona treater applies inline surface treatment for printability.
| Option | What It Does | Suited For |
|---|---|---|
| Internal bubble cooling (IBC) | Cools bubble from inside — heat extracted from both sides | Maximizing output; adds 15–20% throughput |
| Corona treater | Raises surface energy to 38–42 dyne for printing | Film sold to printing converters; branded packaging |
| Dual-station winder | Auto cutover between two winding shafts | Continuous lines where roll-change stops cost output |
| Automatic vacuum loader (dual) | Pneumatically feeds both A and B extruder hoppers | 24/7 lines; one operator managing multiple machines |
| Gravimetric blender (B extruder) | Auto-doses recycled flake, virgin, filler, and masterbatch by weight % | Variable recycled material composition batch to batch |
| Custom voltage & frequency | Built for 220V/60Hz, 440V/60Hz, or other supply | Export buyers with non-Chinese grid standards |
Location: Nairobi, Kenya — food packaging supplier
Machine: MYB-1250 LDPE ABA co-extrusion film blowing machine
Product: LDPE fresh-produce bag film, 0.025 mm, 25/50/25 A/B/A, 30% recycled LDPE in B
Before: Mono-layer line at 85 kg/h, 100% virgin LDPE at $1.15/kg. Recycled content not viable in mono-layer due to haze. Material cost: $98/ton.
After: MYB-1250 at 130 kg/h. Blended cost: $0.82/kg. Saving: $33/ton. Clarity indistinguishable from 100%-virgin — food-packaging buyer approved. Payback in 11 months.
15+ years building co-extrusion lines — Mingyang Packaging Machinery Co., Ltd. manufactures ABA and ABC blown film lines in Guangdong, China, with machines in 40+ countries. We design and cast co-extrusion dies in-house — layer distribution starts with the die geometry, not just the extruder tuning.
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 with your LDPE material — Send us your virgin LDPE and recycled feedstock. We run it through the ABA line at your target layer ratio and verify clarity, gauge uniformity, and surface quality before shipment.
Installation and on-site training — One engineer travels to your site for setup and operator training (5–7 days). Covers layer-ratio programming, LDPE temperature profiling, recycled-material processing, and daily maintenance.
12-month warranty with stocked spare parts — Covers both extruders, co-extrusion die, servo motors, PLC, heaters, and blowers. Common wear parts ship from stock within 48 hours.
Up to 50% of total film weight at a 25/50/25 A/B/A ratio. LDPE's higher melt-flow index makes it more forgiving of recycled-content viscosity variation than HDPE. Post-industrial LDPE trim scrap loads easily to 50%; post-consumer waste may need to stay at 30–40% for consistent surface quality. Send us your recycled material for a test run.
At 25/50/25 with clean recycled LDPE in the core: haze is within 5% of all-virgin — visually indistinguishable. Virgin outer layers determine surface clarity; the core's optical properties are hidden. For food-packaging where clarity is specified, send your recycled material for a sample verification run.
Yes — the 32:1 L/D screws can process HDPE, but output will be 10–15% lower than on an HDPE-optimized ABA line. For occasional HDPE runs, acceptable. If HDPE is your primary material, see our HDPE-optimized ABA machine.
Standard MYB LDPE ABA machines ship in 35–45 days. Custom voltage or non-standard die sizes add 7–10 days. Sea freight: 15–25 days to East/West 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 rated 25% above full load, compressed air (0.6–0.8 MPa), and cooling water for both feed throats. We send the install drawing and utility checklist 2 weeks before shipment.
Mechanical: 3–4 days. Electrical & commissioning: 2–3 days. Training: 5–7 days on layer-ratio programming, LDPE temperature profiling, recycled-material processing, and die-head cleaning. Operators independent by day 6.
The B extruder screw processing recycled material wears faster — 12–16 months vs. 20–24 months for the A extruder. Heater bands: 8–12 months. Screen packs for B extruder: change every 2–4 weeks depending on recycled material cleanliness. All user-replaceable; we stock replacement screws and ship within 72 hours.
Keep A extruder temperature under 200°C — yellowing begins above this. Clean the die head monthly to prevent burnt-polymer buildup. Use only LDPE-compatible purge compound — PVC or engineering-resin residue degrades and contaminates LDPE clarity.
Tell us about your production:
Film application: What are you making? (food packaging, agricultural film, e-commerce bags, retail wrap)
Material plan: Virgin LDPE type? Recycled content target? CaCO₃ filler %? Recycled material source and cost?
Clarity requirements: Is haze or color critical? Are food-contact approvals required?
Target thickness & width: Gauge in mm and layflat width
Daily output target: How many kg or tons per day?
Power supply: Voltage, frequency, and phase at your factory
Destination port: For freight quotation
Technical Specifications Of This LDPE ABA Film Blower
