SJYB-IIISD Class 100 Back Seal Liquid Packaging Machine 134 Bags/Min

Back Seal Liquid Packaging Machine SJYB-IIISD is a Class 100 cleanroom-grade double-head fully automatic liquid pouch packing machine designed for hygienic 100-1000ml liquid and semi-fluid packaging. It is suitable for soy sauce, vinegar, syrup, cooking sauce, dairy drinks, yogurt, paint, fruit juice, soy milk, drinking water, protein drinks, cold noodle soup, industrial coatings, lubricants, and similar liquid products.

With a maximum output of 134 bags/min, the SJYB-IIISD completes roll film feeding, UV sterilization, pouch forming, liquid metering, filling, back sealing or center sealing, cutting, date coding, registration mark detection, and finished pouch counting in one automatic process. Its Class 100 clean laminar flow system, PLC/HMI control, CIP-ready design, and PE film compatibility make it suitable for manufacturers requiring clean, stable, and high-speed liquid pouch production.

Back Seal Liquid Packaging Machine Overview

The SJYB-IIISD Back Seal Liquid Packaging Machine is engineered for packaging applications that require higher cleanliness, stable sealing, accurate filling, and fast production. It uses a double-head filling structure to improve output while maintaining consistent pouch quality and reliable back-seal appearance.

The machine is designed for PE film and supports packaging volumes from 100-1000ml. Its modular stainless steel structure, servo and pneumatic drive system, and industrial PLC control platform help operators adjust packaging speed, filling volume, production recipes, and alarms through the HMI touchscreen.

Technical Parameters

Technical Parameter	Specification
Model	SJYB-IIISD
Production Capacity	50-134 bags/min
Packaging Volume	100-1000ml
Film Width	240-350mm
Metering Accuracy	+/-0.5-1%
Working Pressure	0.65 MPa
Air Consumption	1.0 m³/min at 0.8 MPa
Power Supply	AC 220V +/-10%, 50Hz
Maximum Power	3.5 kW
Overall Dimensions	1700 x 1600 x 3300 mm
Equipment Weight	700 kg

4 Core Advantages of the Back Seal Liquid Packaging Machine

1. Class 100 Cleanroom Packaging Protection

The SJYB-IIISD can be equipped with a Class 100 clean laminar flow system above the forming and filling area. This creates a cleaner positive-pressure packaging environment and helps reduce contamination risk for dairy, beverage, sauce, and other hygiene-sensitive liquid products.

2. High-Speed Double-Head Back Sealing

The double-head structure allows two packaging lanes to work efficiently for high-throughput production. With a speed range of 50-134 bags/min, this Back Seal Liquid Packaging Machine supports stable continuous operation for medium and large liquid pouch lines.

3. PLC/HMI Control with Servo Film Feeding

The machine uses PLC control and an HMI touchscreen for filling volume, packaging speed, alarm monitoring, recipe settings, and production counting. Servo-driven film feeding and registration mark detection help maintain accurate pouch length, cutting position, and printed pattern alignment.

4. UV Sterilization and CIP-Ready Sanitation

Strong UV sterilization treats the packaging film before filling, and the CIP-ready fluid circuit supports automatic circulation cleaning. This helps improve packaging hygiene, reduce manual cleaning work, and support fast product changeovers.

Applications

This Back Seal Liquid Packaging Machine is suitable for automatic pouch packaging of liquid and semi-fluid products in food, beverage, dairy, condiment, chemical, and industrial liquid production.

• Soy sauce, vinegar, syrup, cooking sauce, and condiment liquids
• Pasteurized milk, yogurt drinks, dairy beverages, and protein drinks
• Fruit juice, soy milk, drinking water, and plant-based beverages
• Cold noodle soup, sauces, and low-to-medium viscosity semi-fluid products
• Liquid coatings, lubricants, edible oils, detergents, and similar liquids

For other pouch filling and packing solutions, you can view our 100-1000ml liquid packing equipment category.

Workflow

First, PE roll film enters the servo film feeding system and passes through UV sterilization. The machine forms the pouch, meters the liquid product, fills through the double-head filling system, completes back sealing or center sealing, cuts the finished pouch, prints the date code, detects registration marks, and counts finished bags automatically.

The Class 100 cleanroom system works during production to support a cleaner packaging environment. Operators can adjust filling volume, packaging speed, sealing temperature, counting settings, and alarm parameters through the HMI touchscreen.

FAQ

What is the maximum speed of the SJYB-IIISD Back Seal Liquid Packaging Machine?

The machine can reach up to 134 bags/min, depending on product viscosity, pouch size, filling volume, and production settings.

What filling volume does this machine support?

The SJYB-IIISD supports 100-1000ml liquid pouch packaging, making it suitable for common retail and foodservice pouch formats.

What products can be packed by this machine?

It can pack soy sauce, vinegar, syrup, cooking sauce, milk, yogurt drinks, fruit juice, soy milk, drinking water, protein drinks, oils, lubricants, liquid coatings, and other liquid or semi-fluid products.

What is the benefit of Class 100 cleanroom protection?

Class 100 cleanroom protection helps create a cleaner filling and sealing area, which is useful for dairy, beverage, sauce, and hygiene-sensitive liquid packaging applications.

Does the machine support automatic cleaning?

Yes. The SJYB-IIISD supports CIP automatic circulation cleaning, helping reduce manual disassembly and improve sanitation between production batches.

To discuss pouch size, filling volume, Class 100 cleanroom configuration, or line layout, please contact Saide Pack. You can also read more packaging machine guides in our packaging machinery blog.

For manufacturers evaluating hygienic food packaging requirements, the FDA food safety resources provide helpful information about food safety, sanitation, and processing compliance.