Rotary Feeding Pre-made Bag Packaging Machine

Keypack Intelligent Rotary Feeding Pre-made Bag Packaging Machine is designed for high-speed automated packaging of irregular solid products using volumetric cup filling and circular feeding technology. It delivers 25-60 bags per minute with multi-station rotary indexing, 304 food-grade stainless steel construction, and PLC control with touchscreen interface. Ideal for snack foods, frozen foods, pet foods, and specialty products requiring precise bag feeding and sealing operations.

Product Overview

The Keypack Intelligent (Kunbupack) Rotary Feeding Pre-made Bag Packaging Machine is an advanced automatic rotary bag filling machine engineered for packaging single irregular products that are challenging to meter through conventional methods. This circular feeding bag packer combines a rotary cup filling system with manual product loading, followed by fully automated bag opening, volumetric filling, and precision sealing.

Available in five models (KG8-200, KG8-260, KG8-300, KG8-420, and KG10-200), the machine features 8 or 10 rotary stations operating simultaneously to maximize throughput while maintaining consistent quality. The high-speed rotary indexing mechanism ensures smooth product flow from the circular feeder through volumetric cup measurement to final bag sealing, making it suitable for snack packaging equipment, frozen food packaging lines, and pet food packaging applications.

Built with 304 food-grade stainless steel and equipped with PLC control and touchscreen parameter adjustment, this automatic bag feeding system achieves a finished product rate exceeding 99.5%, significantly reducing waste compared to manual packaging operations. The machine accommodates various pre-made bag formats including stand-up pouches, flat pouches, four-side seal bags, three-side seal bags, and paper composite bags.

Key Features and Machine Characteristics

Multi-Station Rotary Filling Technology

The rotary feeding pre-made bag packaging machine features 8 or 10 stations operating in synchronized rotation, enabling continuous high-speed production. This multi-station rotary indexing design allows simultaneous bag feeding, product filling via volumetric cup measurement, and precision sealing, maximizing output for snack packaging equipment and frozen food packaging lines while maintaining consistent product placement and bag quality.

Volumetric Cup Filling with Circular Feeder

Equipped with a circular feeding system combined with volumetric cup filling, the machine handles irregular solid products with high material versatility. The rotary cup filling system accommodates products like chicken legs, duck necks, duck feet, corn, zongzi, sausages, nuts, candy, and pet food. The circular feeder requires manual product loading, after which the automatic bag feeding mechanism completes bag opening, precise volumetric dosing, and sealing operations.

PLC Control and Touchscreen Operation

The advanced PLC control system with user-friendly touchscreen interface enables operators to easily adjust packaging parameters including bag size, filling volume, sealing temperature, and production speed. This precision filling control ensures consistent quality across production runs while reducing operator training time and minimizing human error in snack packaging, frozen food packaging, and pet food packaging applications.

Food-Grade Stainless Steel Construction

All product-contact parts are manufactured from 304 food-grade stainless steel, meeting international food safety and hygiene standards. This construction ensures compliance with GMP requirements and provides safe, sanitary packaging for snacks, frozen foods, pet foods, coffee beans, and other specialty food products requiring strict hygiene controls.

Optional Coding Device for Traceability

The machine can be equipped with a coding device for printing production dates, batch numbers, expiration dates, or other product information directly on pre-made bags. This optional module enhances traceability, improves regulatory compliance for food packaging machinery, and provides professional presentation for packaged goods in retail environments.

High Yield Rate and Reduced Waste

With automated bag feeding, volumetric cup filling, and precision sealing, the rotary bag filling machine achieves a finished product rate exceeding 99.5%. This high-speed rotary indexing system significantly reduces waste caused by manual packaging operations, minimizes defective product rates, and improves overall production efficiency for snack packaging equipment and frozen food packaging lines.

Wide Bag Format Compatibility

The automatic rotary bag filling machine accommodates various pre-made bag types including stand-up pouches (doy packs), flat pouches, four-side seal bags, three-side seal bags, and paper composite bags. This versatility makes it suitable for diverse packaging requirements across snack foods, frozen foods, pet foods, and specialty products, with bag sizes ranging from 80-420mm width and 100-500mm length depending on model.

Application Areas

Snack Food Packaging

Ideal for high-speed packaging of nuts, candy, dried fruits, potato chips, popcorn, and other irregular solid snacks requiring volumetric cup filling and automatic bag feeding. The circular feeding bag packer handles products with varying shapes and sizes, delivering consistent fill weights and professional bag presentation for retail snack packaging equipment applications.

Frozen Food Packaging Lines

Designed for packaging frozen dumplings, zongzi (glutinous rice dumplings), chicken legs, duck necks, duck feet, chicken feet, and other frozen specialty foods. The 304 stainless steel construction and multi-station rotary filling mechanism ensure hygienic, high-speed operations suitable for frozen food packaging lines requiring precise volumetric dosing and reliable sealing in cold environments.

Pet Food Packaging Applications

Suitable for dry or semi-moist pet food products including kibble, treats, jerky, and specialty pet snacks. The rotary cup filling system with high material versatility accommodates various pet food shapes and densities, while the automatic bag feeding and sealing mechanism ensures hygienic, efficient pet food packaging machine operations with minimal product handling.

Specialty Food and Coffee Bean Packaging

Effective for small-batch or irregular solid foods such as sausages, corn on the cob, whole coffee beans, tea leaves, and other specialty products requiring precise volumetric cup filling. The circular feeding mechanism combined with automatic bag feeding enables efficient packaging of products that are difficult to meter through conventional auger or belt systems.

High-Speed Multi-Product Production Lines

Can be integrated into fully automated snack packaging, frozen food packaging, and pet food production lines for efficient, high-output operations. The PLC control system enables quick changeovers between products and bag sizes, making it suitable for manufacturers running multiple SKUs on food packaging machinery with minimal downtime.

Irregular Solid Product Packaging

Specifically engineered for single irregular products that challenge conventional filling methods, including chicken legs (whole or portions), duck necks, duck feet, chicken feet, corn (whole or cut), zongzi, sausages (links or coils), and similar products. The volumetric cup filling approach combined with circular feeding ensures accurate dosing regardless of product shape variation.

Product Specifications