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GDFR-300X4 High Speed Four Lines T-shirt Bag Making Machine - GDFR-300X4 High Speed Double/Four Lines T-Shirt Bag Making Machine

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GDFR-300X4 High Speed Four Lines T-shirt Bag Making Machine

The GDFR-300X4 is a high-speed multi-line T-shirt bag making machine that switches between two large bags or four small bags per cutting-and-sealing cycle. With independent servo feeding, an inline punch and folding unit, and automatic waste collection, it runs HDPE, LDPE, and biodegradable PLA/PBAT films at up to 280 pcs/min.

Max. Bag Width

500mmX2 240mmX4

Producing Length

300-700mm

Max. Producing Speed

280pcs/min

Main Technical Parameters

Model	GDFR-600X2
Max. Bag Width	500 mm × 2 / 240 mm × 4
Producing Length	300–700 mm
Max. Producing Speed	280 pcs/min
Film Thickness	0.010–0.040 mm
Suitable Materials	HDPE / LDPE / PLA / PBAT
Total Power	17 kW
Max. Film Roll Diameter	800 mm

Performance and Features

The GDFR-300X4 is a four-line-capable vest-handle T-shirt bag making machine — a newly designed, ultra-high-speed practical model. Its multi-line layout supports either two large bags or four small bags per cut-and-seal cycle. The exclusive patented hot-cut and hot-seal system processes HDPE, LDPE, PLA, and biodegradable PBAT films, fed by four independent rolls with cylinder-brake tension control.

Twin independent servo-driven feeding motors make per-line bag length easy to control.
Multiple automatic alarms with auto-stop protection.
Built-in multi-language HMI: Chinese, English, Spanish, Arabic, Russian, and Turkish.
Patented cutting-and-sealing knife for HDPE, LDPE, PLA, and biodegradable PBAT films.
"Rocking System" keeps the full pile of bags from sticking at the sealed edge.
Inline automatic punching unit with folding device and automatic waste collection.
Automatic tension control on four independent unwind rolls via a cylinder-brake system.

Manufacturing Process

From raw film to finished T-shirt bag — unwinding, hot sealing, die cutting and folding in one line

Unwinding

Feeds jumbo film from the unwind stand with tension control and EPC tracking for stable, wrinkle-free material supply.

Hot Sealing & Hot Cutting

Heat-seals the bag body and cuts individual bags in one synchronized pass for clean, strong edges.

Die Cut

Punches the vest-style handle opening and trims the bag profile with a precision die.

Folding

Automatically stacks and folds finished bags for neat collection and downstream packing.

Applications & Industries We Serve

Every Lingfeng plastic bag making machine is built around a real production goal. Below are the most common bag types and industries this equipment serves ?from high-volume retail to specialized, eco-friendly formats. Tell us your application and our engineers will match the right machine configuration.