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GDFR-450X2 FF High-Speed Double-Line Four-Fingers Bottom Seal Bag Making Machine - Full Automatic High Speed Double Lines Four-Fingers Bottom Sealing Bag Making Machine

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GDFR-450X2 FF High-Speed Double-Line Four-Fingers Bottom Seal Bag Making Machine

The GDFR-450X2 FF is a high-speed double-line bottom seal bag making machine for four-fingers (patch) handle bags, with an inline automatic handle-hole punch and waste collection. Twin independent servo feed drives set each line's bag length, and the patented hot-cut, hot-seal knife runs HDPE, LDPE, and biodegradable PLA/PBAT at up to 220 pcs/min.

Max. Bag Width

380mm×2

Producing Length

300-700mm

Max. Producing Speed

220pcs/min

Main Technical Parameters

Model	GDFR-450X2 FF
Max. Bag Width	380 mm × 2
Producing Length	300–700 mm
Max. Producing Speed	220 pcs/min
Film Thickness	0.010–0.040 mm
Suitable Materials	HDPE / LDPE / PLA / PBAT
Total Power	11 kW
Max. Film Roll Diameter	800 mm

Performance and Features

The GDFR-450X2 FF is a double-line four-fingers handle bottom seal bag making machine — a newly designed, ultra-high-speed practical model. It runs a fully automatic workflow with automatic EPC edge correction, automatic speed and tension control via dancer cylinders, and a swing-arm tension-controlled unwind. Its exclusive patented hot-cut and hot-seal system processes HDPE, LDPE, PLA, and biodegradable PBAT films.]

Twin independent servo-driven feeding motors make per-line bag length easy to control.
Multiple automatic alarms with auto-stop protection.
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 handle-hole punch with automatic waste collection.

Manufacturing Process

Double-line handle bottom seal — unwinding, cold cutting and inline die cut

Unwinding

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

Sealing & Cold Cutting

Hot-seals the bag bottom then cold-cuts through thick film without deforming the seal.

Die Cut

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

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.