Powder VFFS Packaging Machine KL420

Keypack Intelligent Powder VFFS Packaging Machine KL-420 is a high-performance vertical form fill seal machine designed for efficient powder packaging with precision and reliability. It delivers 35-80 bags per minute with bag dimensions of (L)60-300mm × (W)60-200mm, featuring intelligent PLC servo control and automatic temperature regulation for consistent sealing quality. Ideal for milk powder packaging, coffee powder filling, protein powder bagging, spice powder packing, and instant drink powder applications across food, pharmaceutical, and chemical industries.

Product Description

The Keypack Intelligent (Kunbupack) KL-420 automatic powder packaging machine integrates advanced vertical form fill seal technology with precision auger filler systems to deliver complete packaging automation for small to medium-sized powder bags. This compact vertical packaging machine combines weighing, bag forming, filling, sealing, date printing, gas flushing (or exhausting), and finished product conveying into one seamless operation. Built with a PLC servo system, pneumatic control, and large touchscreen interface, the machine maximizes control precision, reliability, and intelligent operation. The smart temperature controller ensures accurate heat sealing for beautiful, flat, and secure bag closures every time.

Designed for versatility and high-speed production, this automatic powder filler handles various powder materials including dairy powder, seasoning powder, flour, coffee powder, matcha powder, detergent powder, chemical powder, and more. The system automatically completes counting and can be configured with pillow-style bags or hang-hole punch bags based on customer requirements. Single-belt or dual-belt film transport options provide fast, stable operation with minimal friction and material waste.

The touchscreen interface stores multiple product packaging parameters, allowing instant recall when switching between different products without resetting. An integrated fault display system identifies issues immediately, helping operators troubleshoot and minimize downtime. Safety protection features meet enterprise safety management standards, ensuring operator protection and regulatory compliance. With its compact footprint and efficient design, the KL-420 is ideal for small to medium-scale production facilities requiring flexible, reliable powder packaging solutions.

Technical Specifications

Key Features and Machine Characteristics

• High-Speed PLC Servo Control System: The machine employs a PLC servo system, pneumatic control, and oversized touchscreen display as the core control platform, maximizing precision, reliability, and intelligent automation for consistent packaging quality at speeds up to 80 bags per minute, reducing labor costs and increasing throughput.
• Intelligent Temperature Control for Perfect Sealing: Equipped with a smart temperature controller that maintains precise heat levels across varying production speeds, ensuring every seal is beautiful, flat, and secure. This prevents weak seals, product leakage, and maintains package integrity throughout distribution and shelf life.
• Complete Automation with Integrated Counting: When paired with appropriate metering and conveying systems, the machine automatically completes weighing, feeding, filling, bag forming, date printing, gas flushing or exhausting, and finished product transport. Built-in automatic counting tracks production output in real-time for inventory management and quality control.
• Multi-Recipe Memory and Quick Changeover: The touchscreen can store packaging parameters for multiple products including bag size, sealing temperature, and filling speed. When switching between different powders or bag sizes, operators simply recall saved settings without manual reconfiguration, dramatically reducing changeover time from hours to minutes and eliminating setup errors.
• Fault Display and Diagnostic System: Real-time fault monitoring displays error codes and diagnostic information on the touchscreen, enabling operators to quickly identify and resolve issues such as film jams, temperature deviations, or pneumatic pressure drops, minimizing downtime and maintaining production efficiency.
• Safety Protection and Compliance: Designed with comprehensive safety guards, emergency stop systems, and protective enclosures that meet enterprise safety management requirements and industry standards including CE compliance, protecting operators and ensuring regulatory compliance for food and pharmaceutical applications.
• Flexible Bag Styles and Compact Design: Capable of producing pillow-style bags and hang-hole punch bags based on customer requirements. Single-belt or dual-belt film transport systems deliver fast, stable film feeding with minimal friction and reduced film waste. The compact footprint (L1650mm × W1100mm × H1500mm) makes it ideal for facilities with limited floor space.
• Versatile Powder Handling Capability: Compatible with various powder materials across different industries, from free-flowing to semi-cohesive powders. Can be configured with auger fillers for fine powders, volumetric fillers for consistent dosing, or other metering systems to match specific product characteristics and achieve optimal filling accuracy.

Application Areas

Food Industry Powder Packaging:

• Dairy powder packaging: milk powder sachets, infant formula single-serve packs, protein powder samples, whey powder for nutritional products and sports nutrition
• Beverage powder filling: instant coffee powder stick packs, matcha powder sachets, cocoa powder single-serve portions, tea powder for ready-to-drink applications and café service
• Seasoning and spice powder: flour sachets, starch packets, baking powder portions, spice blends, seasoning mixes, salt and pepper packets for culinary use and food service
• Instant drink powder: solid beverage mixes, glucose powder sachets, nutritional supplement powders, electrolyte powder for consumer retail and sports nutrition

Pharmaceutical and Nutraceutical Powder Packaging:

• Medicinal powder packaging: pharmaceutical powders in unit doses, traditional medicine powders, API powders requiring GMP compliance and contamination-free handling
• Nutritional supplement filling: vitamin powders in daily doses, mineral supplements, health supplement powders, probiotic powder sachets for wellness products and dietary supplements
• OTC powder medications: pain relief powders, antacid powders, cold and flu remedy powders for over-the-counter pharmaceutical applications

Chemical and Industrial Powder Packaging:

• Detergent powder packaging: laundry powder sachets, cleaning powder portions, washing powder single-use packs for household and industrial cleaning applications
• Chemical powder filling: dye powders in measured portions, pigment powders, additive powders, industrial chemical powders for manufacturing and laboratory use
• Cosmetic powder packaging: face powder sachets, body powder samples, cosmetic ingredient powders, makeup powder samples for beauty products and promotional distribution

Agricultural and Pet Food Powder Packaging:

• Agricultural powder: fertilizer powder sachets, pesticide powder portions, feed additive powder for farming applications and home gardening
• Pet nutrition: pet supplement powders, pet food additives, vitamin powder for animal health products and veterinary applications

Sample and Promotional Packaging:

• Product samples: powder product samples for marketing campaigns, trade show distribution, and customer trials across all industries
• Single-serve portions: hotel amenity powders, airline service sachets, vending machine portions for hospitality and food service

Customization and Optional Configurations

The KL-420 powder VFFS machine can be customized with various metering systems and material handling equipment to match your specific product requirements:

• Metering Systems: Auger fillers for fine powders (milk powder, flour, spices), volumetric cup fillers for free-flowing materials, screw feeders for consistent dosing, multi-head weighers for high-speed accuracy
• Material Contact Parts: Stainless steel 304 or 316L construction for food-grade and pharmaceutical applications, polished finishes for easy cleaning and GMP compliance
• Feeding Systems: Screw conveyors for gentle powder transport, pneumatic conveying for dust-free handling, vacuum feeding for contamination prevention, bucket elevators for vertical material transfer
• Bag Features: Tear notches for easy opening, hang holes for retail display, easy-open features, zipper integration for resealable bags, degassing valves for coffee and aromatic products
• Printing Options: Thermal transfer date coders, inkjet printers for variable data, hot stamp coders for batch and expiry information, laser markers for permanent coding
• Gas Flushing: Nitrogen flushing systems for extended shelf life and product protection, modified atmosphere packaging (MAP) for oxygen-sensitive products
• Automation Integration: Conveyor systems for material flow, checkweighers for quality control, metal detectors for food safety, reject systems for out-of-spec products, case packers for complete packaging lines

Delivery and Support

Keypack Intelligent provides comprehensive support throughout the equipment lifecycle:

• Delivery Timeline: Standard lead time of 30-45 days from order confirmation, with expedited options available for urgent projects
• Installation and Commissioning: Professional on-site installation, mechanical and electrical setup, system testing, performance validation, and production trial runs with your actual products
• Operator Training: Comprehensive training programs covering machine operation, parameter adjustment, film loading, routine maintenance, cleaning procedures, and basic troubleshooting for production and maintenance staff
• Spare Parts Support: Complete spare parts inventory including wear parts (sealing jaws, cutting blades), sealing components, electrical parts, pneumatic components, and consumables with fast shipping worldwide
• Warranty Coverage: 12-month warranty on parts and workmanship from commissioning date, with extended warranty options available for critical production equipment
• Technical Support: Remote diagnostic support via internet connection, video consultation for troubleshooting, telephone hotline support, and on-site service visits when required for complex issues

FAQ

1. Why is my powder packaging machine leaking dust during operation?

Dust leakage is one of the most common complaints in powder packaging. The KL-420 features a sealed auger feeding system with dust extraction ports and intelligent temperature-controlled sealing to minimize powder residue at the seal zone. Optional dust collection units can be integrated to improve plant conditions and reduce product loss.

2. How do I reduce changeover time between different powder products?

Traditional machines can take 2–3 hours to switch products. The KL-420 stores up to 50 product recipes on its touchscreen. Operators recall saved parameters for temperature, speed, and sealing pressure—no manual reconfiguration needed. Format changeover takes 15–30 minutes without cleaning; full product changeover with CIP cleaning runs 45–60 minutes.

3. Why are bags leaking or seals failing after packaging?

Seal failures typically stem from three causes: incorrect jaw temperature, uneven sealing pressure, or film thickness outside the machine's range. The KL-420 uses independent top and bottom jaw temperature control with pneumatic pressure compensation for even distribution across the full seal width. The machine supports film thickness from 60–180μm and each unit is seal-tested before shipment.

4. What is the realistic production speed I should plan for?

Rated speeds are measured under ideal conditions. The KL-420 is rated at 35–80 bags per minute, but real-world throughput runs at 65–85% OEE. New installations typically start around 65–70% efficiency and improve with operator training. Use rated speed × 0.75 as your realistic baseline for production planning.

5. How do I choose between a VFFS machine and a premade pouch machine for powder?

VFFS is the mainstream choice for powder packaging—higher speed, lower unit cost, and suitable for pillow bags, gusseted bags, and three/four-side seal formats. Premade pouch machines offer more flexibility in bag styles (stand-up pouches, zipper closures, premium appearance) but at higher equipment and packaging material cost. Choose VFFS for volume production; choose premade pouch only if you need stand-up format or recloseable features.