Technical Specifications

Dual Lane Automatic Bag On Roll Making Machine — MY-BOR-200

Applications

The MY-BOR-200 dual lane bag-on-roll making machine integrates unwinding, printing, bag-making, perforating, and rewinding into one continuous process — producing finished perforated bag rolls ready for retail shelves, supermarket dispensers, and industrial packaging stations. It handles PE, PP, HDPE, LDPE, and biodegradable films from 0.02–0.15 mm at up to 150 m/min across two independent production lanes.

• Supermarket produce bag rolls — Coreless or cored HDPE roll bags for fruit, vegetable, and self-service dispensers. The ±0.5 mm edge-guiding keeps roll edges flush so bags tear off cleanly at the perforation every time.

• Garbage bag rolls — Perforated LDPE/HDPE refuse bags on compact rolls for retail and janitorial supply. Auto-counting stops each roll at the exact preset quantity — every roll labeled "50 bags" contains 50 bags.

• Food-grade roll bags — Bread bags, freezer bags, and food storage bags on rolls for bakery and food processing. Compatible with food-grade PE film; inline printing adds date codes and branding in one pass.

• E-commerce & logistics packaging rolls — Continuous roll bags for high-speed auto-packaging lines in fulfillment centers. Consistent tension winding ensures the roll feeds without jamming in automated dispensing equipment.

Who This Machine Is For

• Roll-bag converters supplying retail chains — Supermarkets and big-box stores order produce bag rolls and garbage bag rolls by the container. The dual-lane design doubles output from one machine — one operator fills two purchase orders simultaneously.

• Blown film producers expanding into finished bag rolls — You already make the film. Adding a bag-on-roll machine captures the converting margin and lets you sell finished rolls directly to retailers instead of selling plain film rolls to bag converters.

• Food-packaging and food-service suppliers — Bakeries, deli counters, and food-processing plants consume bag rolls daily. The MY-BOR-200 prints, perforates, counts, and winds in one pass — no separate printing or counting stations.

• Janitorial and sanitation product manufacturers — Garbage bag rolls for retail, contract cleaning, and institutional supply. Dual-lane output meets the volumes that big-box and wholesale buyers demand on quarterly tender cycles.

Who Should NOT Buy This Machine

• Producers making primarily loose/stacked bags — If your output is mostly individually stacked T-shirt bags or flat bags, a T-shirt bag making machine or flat-bag machine with stacker is purpose-built for your product. The MY-BOR-200 is optimized for roll-form output with rewinding.

• Shops running under 300 kg of roll bags per day — The dual-lane configuration pays back on volume. For low-volume roll-bag production, a single-lane rewinder may be more cost-effective — contact us for a volume assessment.

• Biodegradable film producers without stabilized film — The MY-BOR-200 runs biodegradable films, but the film must have consistent tensile strength and elongation. Brittle or inconsistently blown biodegradable film snaps at the perforation or tears during high-speed rewinding.

Technical Advantages

Independent Dual-Lane Rewinding with Tension Decoupling

Each lane winds finished bag rolls independently with its own tension-control loop. On linked-drive dual-lane machines, a tension disturbance on Lane A (from a film splice or diameter change) transfers to Lane B — producing a soft or over-tight roll on both lanes. The MY-BOR-200 gives each lane an independent torque-motor winder with a dedicated dancer-arm tension sensor — Lane A's splice doesn't touch Lane B's winding quality. Unlike machines where one tension fault ruins two production lanes simultaneously, this limits quality loss to the affected lane only.

EPC Edge Guiding at ±0.5 mm Throughout the Process

Photoelectric edge-position control (EPC) keeps film tracking centered from unwind to final rewind. On bag rolls, a 2 mm edge offset compounds over 50 meters of winding — the finished roll arrives with telescoped layers that jam the dispensing box. The MY-BOR-200 EPC system samples edge position continuously and adjusts guide rollers in real time — the wound roll edge stays flush within ±0.5 mm, even at 150 m/min. The roll looks clean on the retail shelf and feeds smoothly through automatic dispensers.

Integrated Perforation with Programmable Count and Auto-Stop

Perforation blade runs synchronized to bag length; the PLC stops each lane at the preset bag count per roll. Mechanical perforation counters drift with blade wear — a roll programmed for 50 bags delivers 47 or 53, costing customer trust. The MY-BOR-200 counts bags from the servo encoder — one bag cycle = one count, zero drift — and auto-stops the lane at exactly the programmed quantity. The operator removes the finished roll, resets, and restarts in under 30 seconds.

Real Production Issues It Solves

• Telescoped rolls from winding misalignment — Edge drift during rewinding creates stepped roll edges — the roll looks defective on the shelf and jams dispensers. The EPC system maintains ±0.5 mm edge alignment from core start to full diameter, lane by lane.

• Wrong bag count per roll — Mechanical counters undercount or overcount as perforation blades wear. The servo encoder counts bag cycles digitally — a "50-bag roll" actually contains 50 bags, every time. No customer disputes over short-count rolls.

• Perforation tear-out at high speed — At 150 m/min, a poorly timed perforation blade tears through the film instead of cleanly perforating — the roll snaps during dispensing. The MY-BOR-200's servo-synchronized perforation adjusts blade entry depth and dwell time to the film gauge — clean perforation across the full speed range.

• Production loss from single-lane stoppage — On a single-lane machine, a film splice or roll change stops all output. The MY-BOR-200's independent dual lanes let one lane continue producing while the other lane changes rolls — net output stays above 80% even during changeovers.

Production Scenarios

How It Works

1. Film unwinding: A roll of tubular or flat PE film mounts on the unwinding stand. Tension is controlled by dancer-arm feedback to the unwind brake.

2. Inline printing (optional): A flexographic print station applies logos, date codes, or batch numbers to the film before bag conversion.

3. Bag forming & sealing: The film passes through the bag-forming section where bottom seals and side seals are applied per the bag dimensions programmed into the PLC.

4. Perforation: A servo-synchronized perforation blade creates tear-off perforations between bags. Perforation depth and dwell time are adjustable per film gauge via the touch screen.

5. Edge guiding (EPC): Photoelectric sensors track film edge position; guide rollers adjust in real time to maintain ±0.5 mm tracking before winding.

6. Dual-lane rewinding & counting: Each lane independently winds finished bag rolls on its own torque-motor winder. The PLC counts bags per roll via servo encoder and auto-stops at the preset quantity.

Optional Configurations

Customer Case

Location: Manila, Philippines — retail packaging supplier
Machine: MY-BOR-200 dual lane bag on roll making machine
Product: HDPE produce bag rolls, 0.01 mm, 300×450 mm, 50 bags/roll, coreless
Before: Two single-lane rewinders at 70 m/min each, two operators, 12% waste from miscounts and telescoping. Rolls per shift: ~600 total across both machines.
After: One MY-BOR-200 at 140 m/min, one operator, under 4% waste. Rolls per shift: ~900. Counting errors eliminated. Payback in 10 months.

Why Choose MINGYANG

• 15+ years building bag converting equipment — Mingyang Packaging Machinery Co., Ltd. manufactures in Guangdong, China, with machines in 40+ countries. We build both film blowing and bag converting lines — we guarantee film-to-machine compatibility from day one.

• CE-certified, export-ready — Every MY-BOR machine meets CE safety and electrical standards. Documentation includes wiring diagrams, mechanical drawings, and spare parts list in English.

• Factory acceptance testing with your film — Send us your film roll. We run it on your MY-BOR-200, measure edge-guiding precision, perforation quality, and counting accuracy, and send you video and sample rolls before shipment.

• Installation and on-site training — One engineer travels to your site for setup, tension tuning, and operator training (5–7 days). Covers bag-size programming, perforation setup, EPC calibration, and daily maintenance.

• 12-month warranty with stocked spare parts — Covers perforation blades, winder motors, EPC sensors, PLC, and all assemblies. Common wear parts — perforation blades, sealing bands, silicone rollers — ship from stock within 48 hours.

Frequently Asked Questions

Performance and Material Compatibility

What film types and thicknesses can the MY-BOR-200 run?

PE, PP, HDPE, LDPE, and biodegradable films from 0.02–0.15 mm. Biodegradable films must have consistent tensile strength — brittle or inconsistently blown film may tear at perforation. Send us your film sample for a test run.

What bag types and sizes can it produce?

Eight-fold flat bags, vest bags with handle, drawstring bags, and customized roll-bag shapes. Bag width and length are programmed via the PLC touch screen — changeover between sizes takes under 5 minutes.

Can both lanes run different bag specifications simultaneously?

Yes. Each lane has independent bag-length, perforation, and count-per-roll settings. Lane A can run 50-bag produce rolls at 300 mm length while Lane B runs 25-bag garbage rolls at 600 mm. Both lanes share the same film feed, so film gauge must be the same.

Purchasing and Delivery

What's the lead time?

Standard MY-BOR-200 ships in 35–45 days. Custom voltage or optional modules add 7–10 days. Sea freight: 15–25 days to West Africa, 10–18 days to Southeast Asia, 25–35 days to South America.

What utilities do I need to prepare?

A level concrete pad (machine footprint + 1.5 m clearance), a power supply matching your voltage with a dedicated breaker, and compressed air (0.6–0.8 MPa). We send the full install drawing and utility checklist 2 weeks before shipment.

Installation and Maintenance

How long does installation and training take?

Mechanical: 3–4 days. Electrical & commissioning: 2–3 days. Training: 5–7 days on bag-size programming, perforation setup, EPC calibration, and troubleshooting. Operators independent by day 6.

What wears out and how often?

Perforation blade: 2–4 months depending on film abrasiveness. Sealing bands: 3–6 months. Silicone rollers: 6–12 months. All user-replaceable; we stock and ship within 48 hours.

What's the daily maintenance routine?

Each shift: clean perforation blade of film residue, check EPC sensor lens for dust, verify winder tension on a sample roll. Weekly: inspect sealing bands, check all roller bearings for free rotation, clean film-path surfaces.

Get Your MY-BOR-200 Quote

Tell us about your roll-bag production:

• Bag type & dimensions: What bag style? Width × length? Perforated or continuous?

• Film material & gauge: HDPE, LDPE, biodegradable? Thickness in mm?

• Roll specification: Bags per roll? Cored or coreless? Printed or blank?

• Daily output target: How many rolls per day or per month?

• Power supply: Voltage, frequency, and phase at your factory

• Destination port: For freight quotation