A plastic film bag‑making machine is industrial converting equipment that uses heat sealing and cutting mechanisms to transform plastic film rolls into finished bags of various types — including T‑shirt bags, bags‑on‑roll, coreless rolls, and flat bags — at high speed with precise length control and automatic winding.
CBADEN Machinery Group designs and builds double‑rail and single‑rail bag‑making machines from entry‑level to fully automatic configurations — with independent winders, chip computer control systems, and servo‑driven tension control — for shopping bag, garbage bag, food bag, and biodegradable bag producers worldwide.
| Question | Short Answer |
|---|---|
| What is a plastic film bag‑making machine? | A converting machine that heat‑seals and cuts plastic film into finished bags — T‑shirt bags, bags‑on‑roll, coreless rolls, flat bags, and more. |
| How does a bag‑making machine work? | Film is fed from an unwind roll, passed through sealing bars (heat or ultrasonic), cut to length by a cutting knife, and stacked or wound into rolls by an automatic winder. |
| What types of bags can it produce? | T‑shirt bags (shopping bags), bags‑on‑roll (produce bags, garbage bags), coreless roll bags, flat bags, gusseted bags, and custom‑shaped bags. |
| What films can it run? | HDPE, LDPE, LLDPE, PP, biodegradable films, and multilayer co‑extruded films — typically 6–50 microns per layer. |
| Who builds them? | Factory manufacturers such as CBADEN Machinery Group supply double‑rail and single‑rail bag‑making machines for export markets. |
| How do you buy / price one? | Bag‑making machines are quote‑based capital equipment. Share bag type, width, length, film thickness, speed, and automation requirements to receive a factory quotation. |
The process runs unwind → film guiding → sealing → cutting → stacking/winding — with automatic tension control, temperature regulation, and length counting in between.
The film roll is mounted on an unwind stand (max Φ900mm) with automatic tension control to ensure consistent feed into the sealing unit.
Film passes through guide rollers and forming boards (for gusseted bags) to create the desired bag shape and fold.
Heat seal bars apply controlled temperature and pressure to create bottom seals or side seals. Independent temperature control per seal bar ensures seal integrity.
Rotary or guillotine cutting system cuts the film to precise bag length (200–1500mm depending on model).
Finished bags are either stacked in a collection tray (flat bags) or automatically wound onto a core (bags‑on‑roll) with core diameters of Φ25–60mm.
Chip computer or PLC control system manages speed, bag length, count, temperature, and fault diagnosis — enabling one‑touch operation.
A plastic film bag‑making machine transforms rolls of plastic film into finished bags through a continuous process of film feeding, heat sealing, cutting, and stacking or winding in one integrated production line.
The machine starts with an unwind stand that feeds film at controlled tension. Film passes through forming guides (for gusseted bags) and sealing bars that apply heat and pressure to create bottom seals or side seals. A rotary or guillotine cutting system then cuts the film to the specified bag length. Finished bags are either stacked in a collecting tray (for flat bags) or automatically wound onto a core (for bags‑on‑roll).
Double‑rail configurations can produce two lanes of bags simultaneously, effectively doubling output. Fully automatic models with independent winders and chip computer control systems enable one‑touch operation, automatic counting, and consistent bag quality across long production runs.
Choose bag‑making machine type by your target bag style and production requirements — double‑rail for high‑volume output, bag‑on‑roll for retail and produce bags, coreless for eco‑friendly dispensing, and T‑shirt bag machines for shopping bag production.
High‑speed double‑rail for flat bags and general‑purpose bags. Independent winder and chip computer control.
Heavy‑duty double‑rail with wider bag capacity. Independent winder and chip computer control.
Specialized for producing T‑shirt bags on roll with gusset (side folds). Ideal for retail and garment bags.
High‑speed double‑rail machine specialized in T‑shirt bag production for household and commercial use.
Single‑rail machine for producing coreless bags‑on‑roll. Eliminates paper core waste — eco‑friendly.
Double‑rail machine for producing bags‑on‑roll with paper core. Ideal for supermarket produce and garbage bags.
Published CBADEN Machinery model cards list bag width, length, speed, film thickness, and power requirements so buyers can shortlist before requesting a configured quote.
| Model | Rail | Bag Width | Bag Length | Speed | Film Thick. | Power | Weight |
|---|---|---|---|---|---|---|---|
| CBCWX3002 | Double | 80–150mm | 200–900mm | 80–100m/min ×2 | 6–25 micron | 12KW | 2,800KG |
| CBC4502 | Double | 150–400mm | 200–800mm | 300 pcs/min ×2 | 8–35 micron | 14KW | 3,200KG |
| Model | Type | Bag Width | Bag Length | Speed | Film Thick. | Power |
|---|---|---|---|---|---|---|
| CBC4502CB | T‑shirt on‑roll w/ gusset | 330mm | 330–1000mm | — | 10–35mm | 25kWA |
| CBC450450 | Double‑rail high‑speed T‑shirt | 200–400mm | 320–650mm | 150–300 pcs/min | 10–50 micron | 14KW |
| Model | Type | Bag Width | Bag Length | Speed | Core | Power |
|---|---|---|---|---|---|---|
| CBCWZ700 | Coreless, single‑rail | 400–650mm | 300–1500mm | 80–100 m/min | Coreless | 10KW |
| CBC4502 | With core, double‑rail | 150–400mm | 200–800mm | 300 pcs/min ×2 | Φ25–60mm | 14KW |
Plastic film bag‑making machines supply the finished bags that converters and packaging producers turn into retail shopping bags, grocery bags, produce bags, garbage bags, and food packaging bags.
Optional machine components that support production quality — servo‑driven tension control, automatic counting, photoelectric registration, and dual‑winding systems — are available across all models.
Match bag type, width, length, film material, speed, and automation level to your production needs — then confirm controls, winding options, and service terms with the manufacturer.
T‑shirt bags need handle‑forming and hot pin systems; bags‑on‑roll need automatic winding units; gusseted bags need forming boards.
Specify bag width (80–650mm) and length (200–1500mm) — match to your product range.
HDPE, LDPE, LLDPE, PP, biodegradable — thickness typically 6–50 microns.
Target pcs/min or m/min against shift output — double‑rail models offer 2× output.
Coreless (eco‑friendly, no paper waste) vs. with core (standard retail rolls).
Chip computer control, PLC touch‑screen, automatic counting, and fault diagnosis reduce waste and operator intervention.
Factory‑direct builders with 30+ years manufacturing experience, QC, R&D, and export capabilities reduce integration risk.
CBADEN Machinery Group is a factory‑direct B2B manufacturer in China with more than 30 years of manufacturing and selling experience for bag‑making machinery, serving customers across global markets.
There is no public list price for a plastic film bag‑making machine — configuration, bag type, width, speed, rail type (single or double), winding system, and auxiliaries drive a factory quotation.
Capital bag‑making machines are sold inquiry‑first. To receive a usable quote, send target bag type (T‑shirt, on‑roll, coreless, flat), bag dimensions (width, length), film type and thickness, required speed, and destination country. CBADEN Machinery responds through its inquiry channels.
Service frame published by the manufacturer includes factory inspection, one‑year guarantee, critical spares shipped with the machine, and after‑sales support.
Send bag type, dimensions, film material, speed targets, and winding preference to receive a factory‑direct configuration and quotation from CBADEN Machinery.