Fully automatic blood bag heat sealing machine

The fully automatic heat-sealing machine for blood bags is specifically designed for the production of key medical soft bags such as PVC/TPU medical plastic blood bags, infusion bags, peritoneal dialysis bags, and cell culture bags.

Core Functions: It automatically heat-seales and shapes multi-layer co-extruded medical PVC/TPU sheets (or other medical films), cuts them, and automatically welds and assembles tubing (such as blood collection tubes and infusion tubes).

Industry Position: In the Chinese market, Puxiong is one of the leading brands in this field, renowned for its high stability, high production speed, and rigorous GMP-compliant design. It is standard equipment for many blood product companies and medical consumables manufacturers.

Core Technical Features: This type of equipment is a highly automated integrated system that incorporates multiple technologies:

Fully Automatic Roll Feeding System:

Automatic unwinding, tension control, and deviation correction smoothly feed rolls of medical PVC/TPU composite film into the production line.

Multi-Station Heat Sealing and Forming System (Core):

High-Frequency Heat Sealing Technology: This is the absolute mainstream technology in blood bag production. High-frequency electric fields are used to heat and fuse molecules internally. Advantages include high welding strength, absolutely reliable sealing, and high speed.

Multiple precision molds: Completed sequentially on a single production line:

Bag outline welding: Welding the main bag shape.

Internal channel welding: Forming pressure-resistant flow channels inside the bag.

Tube welding station: Fully automated, precisely positioning and welding pre-cut PVC tubing (blood collection needles, infusion tubing) to the bag body. This is the technical challenge and key value point.

Date/batch number printing: Integrating a thermoforming or inkjet printing system for online printing of production information.

Online inspection and rejection system:

Visual inspection system: Detects missing tubing, incorrect positioning, and defects in the welding outline.

Automatically rejects defective products.

Fully automated cutting and collection system:

Die-cuts connected bags into individual products.

Automatically stacks or counts and collects.

Industrial PC-based Intelligent Control System:

Core Brain: Controls the entire production cycle and coordinates the actions of each workstation.

Parameter Management: Stores hundreds of sets of molds and welding parameters for different products (e.g., 200ml, 400ml blood bags, single-piece bags, double-piece bags, triple-piece bags).

Data Traceability: Comprehensively records production data (speed, output, scrap rate, equipment status), complying with GMP (Good Manufacturing Practice) electronic record requirements, enabling full product lifecycle traceability.