Single-side open roll-fed packaging film is a roll of continuous packaging material with one side (typically the top) pre-opened, specifically designed for automatic bagging machines. The film feeds continuously from the roll, and the pre-opened design allows the machine to easily separate and open each bag mouth without additional air blowing or mechanical aids.
In one sentence: Ready-to-open film on a roll that keeps automatic packaging lines running smoothly – no jams, no misfeeds.
Key Advantages:
✅ Pre-opened design – bags open effortlessly, reducing jams and misfeeds
✅ Continuous roll format – matches automatic feeding mechanisms for uninterrupted operation
✅ Versatile materials – available in PE, PP, laminated films, and more
✅ Customizable – size, thickness, printing (logos, barcodes, QR codes, text), anti-static, moisture-proof, oil-proof treatments
✅ Consistent quality – uniform dimensions and thickness from batch to batch, no need to recalibrate machines
✅ High compatibility – works seamlessly with most automatic packaging equipment
Common Specifications (Customizable):
| Parameter | Typical Range |
|---|---|
| Bag Width | 100 – 450mm |
| Bag Length | 150 – 510mm |
| Thickness | 0.02 – 0.10mm |
| Material | PE / PP / Laminated Films |
| Opening Type | Single-side pre-opened |
| Core Inner Diameter | Matches equipment requirements |
Applicable Industries:
Electronics: Connectors, wire harnesses, PCB boards, 3C components
Automotive: Fasteners, rubber parts, stamped metal components
Hardware: Screws, nuts, drill bits, tool sets
Medical Devices: Disposable supplies, surgical instruments
Food: Snacks, dried goods, confectionery
Retail & Personal Care: Cosmetics, stationery, toys
Perfect Match:
Our single-side open roll-fed packaging film is designed as the “matched consumable” for the JYZN series automatic packaging machines (such as the JYZN-350gdk). Manufactured to the exact specifications of the equipment’s feeding system, it delivers seamless compatibility – smooth bag feeding, firm seals, and precise positioning – maximizing your Overall Equipment Effectiveness (OEE).
In one sentence: Single-side open roll-fed packaging film = the dedicated roll film for your automatic packaging machine. Open, feed, seal – keeping your line running at peak efficiency.
Pre-opened continuous roll bags are exactly what they sound like: bags with the mouth already opened, rolled up in a continuous roll.
Picture this: each bag’s opening is naturally separated—no rubbing, no blowing, just grab and load. Multiple bags are connected in a roll and loaded directly onto automatic packaging machines. The machine pulls one, opens it effortlessly, loads the product, and seals it—all in one smooth flow.
Regular flat bags:
Bag mouths stick together—you have to rub them open or blow air to separate them
Tend to jam or misfeed on automatic machines
Suitable for manual bagging, but not for automated lines
Pre-opened continuous roll bags:
Bag mouths are naturally separated—pull and they open
Run smoothly on automatic machines with minimal jams
Specifically designed for automatic packaging equipment
Problem #1: Your bags keep jamming on the automatic machine?
Regular bags have sticky mouths that the machine can’t open properly—leading to empty bags passing through, machine stoppages, and workers constantly on standby to clear jams.
With pre-opened continuous roll bags: The bag mouth is already separated. The machine’s opening mechanism lightly spreads it open with ease. Every bag runs through smoothly—almost zero downtime.
Problem #2: Every time you change bags, you have to recalibrate the machine for ages?
Some bags have inconsistent material and thickness from batch to batch, requiring lengthy machine re-adjustments every time.
With pre-opened continuous roll bags: We strictly control dimensions and thickness for consistent quality batch after batch. Load them up and go—no repeated adjustments needed.
Problem #3: Worried about misaligned printing on QR codes?
Regular bags might shift when reaching the sealing position, causing unstable printing or sealing alignment.
With pre-opened continuous roll bags: With standardized dimensions and precise positioning, combined with the machine’s registration system, print positions are consistently accurate—every bag, same spot.
We don’t just sell standard sizes—we offer full customization:
| Parameter | Customization Range |
|---|---|
| Bag Width | Customized to your product dimensions |
| Bag Length | Customized to your product dimensions |
| Thickness | Standard or reinforced options |
| Material | PE, PP, laminated films, and more |
| Transparency | Transparent, translucent, or opaque |
| Printing Content | Logos, barcodes, QR codes, text |
| Functional Treatments | Anti-static, moisture-proof, oil-proof, etc. |
| Industry | Typical Products |
|---|---|
| Electronics | Connectors, wire harnesses, PCB boards, 3C components |
| Automotive | Fasteners, rubber parts, stamped metal components |
| Hardware | Screws, nuts, drill bits, screwdriver bits |
| Medical Devices | Disposable supplies, surgical instruments |
| Food | Snacks, dried goods, confectionery |
| Personal Care & Retail | Cosmetics, stationery, toys |
| Our Promise | What It Means for You |
|---|---|
| Consistent Quality | Stable dimensions and uniform thickness—no repeated machine adjustments |
| Machine-Ready | Pre-opened design ensures smooth bag feeding—no jams |
| Beautiful Seals | Consistent material quality delivers smooth, wrinkle-free seals |
| Fast Delivery | Custom samples fast, production ready on time |
| Perfect Fit | Customized to your machine model and bag type—plug and play |
| Parameter | Standard Range |
|---|---|
| Bag Width | 100 – 450mm |
| Bag Length | 150 – 510mm |
| Thickness | 0.02 – 0.10mm |
| Material | PE / PP / Laminated Films |
| Opening Type | Single-side pre-opened |
| Core Inner Diameter | Matches your equipment |
Our pre-opened continuous roll bags are designed as the “matched consumable” for the JYZN series automatic packaging machines (such as the JYZN-350gdk). The bags are manufactured to the exact specifications of the machine’s feeding system, delivering seamless compatibility—smooth bag feeding, firm seals, and precise positioning. Together, they achieve industry-leading Overall Equipment Effectiveness (OEE).
Pre-opened continuous roll bags = The dedicated consumable for your automatic packaging machine. Open and use, no jams, no hiccups—keeping your automated packaging line truly up and running.
English English 
Chinese
Russian
Japanese
Malay
Korean
French
German
Arabic
