Product Overview

The Keypack Intelligent KL8-420 8-Station Pouch Feeding Machine for Pre-made Bags is a fully automatic pre-made pouch filling and sealing machine designed for high-speed, high-precision packaging of solid, powder, granular, paste, and selected liquid products. Suitable for stand-up pouches, zipper bags, and other pre-formed bags, this automatic bag packaging machine integrates a multi-head weigher packing system and an auger filler, enabling flexible configuration for different product characteristics.

The Keypack Intelligent KL8-420 is widely applied in food, pet food, and chemical packaging, handling products such as snacks, nuts, candy, coffee beans, powders, granules, pastes, and liquids. With its rotary indexing structure, fast changeover capability, and stable bag handling, it is an ideal solution for manufacturers seeking a high-speed premade pouch packaging machine with reliable long-term operation and reduced labor cost.

Key Features and Machine Characteristics

• 8-Station Rotary Indexing Design
  The Keypack Intelligent (Kunbupack) KL8-420 adopts a 360-degree rotary indexing structure, allowing all 8 stations to operate independently. If bag opening fails, the machine automatically stops filling and sealing to prevent bag waste, improving efficiency compared with linear premade pouch packing machines.

• PLC Touch Screen Control with Rapid Adjustment
  Equipped with PLC touch screen control, all 8 stations can be adjusted simultaneously within approximately 5 seconds. Bag size changeover is completed without tools, supporting fast production switching for different pre-made pouch specifications.

• High-Strength Bag Gripping System
  Integrally formed corrosion-resistant claws feature a dual-material design combining stainless steel and rubber, providing strong gripping force to prevent bag dropping during powder, granule, liquid, or paste filling operations.

• Reliable Bag Opening System
  The machine uses a German Festo vacuum system with dual bag-opening modes, including synchronized upper and lower opening and compressed air inflation, ensuring stable opening of stand-up pouches and zipper bags.

• Premium Mechanical Structure
  Manufactured using high-quality Japanese steel and precision cam mechanisms processed through advanced manufacturing techniques, the machine delivers stable performance, long service life, and reliable continuous operation.

• Washdown-Friendly Hygienic Design
  The integrated chain-mounted tabletop with arc-shaped water channels and a cantilevered electrical control structure allows thorough cleaning and washdown, supporting hygienic packaging requirements.

• Integrated Dust Removal System
  A four-stage dust removal system is applied at the feeding area, hopper, movement track, and bag mouth. The variable-frequency industrial dust collector with high-efficiency PE+PTFE filters ensures effective dust control for powder and granule packaging.

• High-Precision Sealing Performance
  The Japanese Omron temperature control system combined with double-knife opposing sealing and hot–cold sealing design maintains temperature deviation within ±1°C, ensuring uniform sealing strength, clean bag appearance, and reliable seal integrity.

• International Brand Components
  Electrical components from Siemens, Schneider, and Omron, together with wear-resistant bearings from Igus and TEK, ensure stable 24-hour operation and long-term reliability in demanding production environments.

Application Areas

The Keypack Intelligent KL8-420 Pre-made Pouch Packaging Machine is suitable for:

• Food Packaging: snacks, nuts, candy, biscuits, cereals, coffee beans, frozen foods

• Powder & Granule Packaging: seasoning powder, food additives, granules, mixed products

• Liquid & Paste Packaging: sauces, semi-liquid food products

• Pet Food & Related Products

This system is an ideal choice for manufacturers seeking an automatic premade pouch filling and sealing machine, multi-head weigher packing machine, or high-speed bag feeding machine for flexible and efficient production.