Powder Double-head Rotary Filling Machine

Keypack Intelligent Twin-Head Rotary Powder Filler is a fully automated dual-head powder filling machine designed for high-precision milk powder filling and nutritional powder packaging. It delivers 25-45 cans per minute with dual weight verification and PLC control system featuring touch screen HMI. Ideal for infant formula canning, protein powder packaging, and pharmaceutical-grade powder filling operations requiring precision weighing and hygienic operation.

Product Overview

The Keypack Intelligent (Kunbupack) Twin-Head Rotary Powder Filler integrates advanced rotary powder canning system technology with dual-head auger filling mechanisms and precision weighing stations, specifically engineered for high-volume powder canning operations in dairy, nutraceutical, and food industries. This automatic powder filling machine features a fully enclosed stainless steel construction with integrated automatic dust extraction, PLC control system, and dual-stage weighing verification to ensure consistent fill accuracy and product quality throughout production.

The two-head powder packaging machine employs a rotary indexing platform that enables simultaneous filling of two cans per cycle on a rotating star wheel system, significantly increasing throughput while maintaining a compact footprint suitable for space-constrained production facilities. Each filling station operates independently with servo-driven auger feeders and performs two-stage filling: coarse filling for rapid bulk dosing followed by precision filling for final weight adjustment. The integrated weighing system performs weight checks after each filling stage, providing real-time feedback to the PLC for automatic dosing correction, ensuring yield improvement and minimizing product giveaway.

Built with modular design and quick changeover tooling, the rotary powder canning system supports multiple can formats with minimal downtime. Operators can switch between different can sizes by replacing guide rails and adjusting star wheel positions, with all recipe parameters stored in the touch screen HMI for instant recall. The sealed working chamber with automatic dust extraction system maintains a clean production environment, while the separated control panel protects operators and electrical components from powder contamination, ensuring hygienic operation and easy maintenance throughout the production process.

Key Features and Machine Characteristics

1. Fully Automated One-Touch Operation for High Speed Filling
The dual-head powder filling machine features complete automation with single-button start after initial setup and parameter adjustment. The PLC control system manages all filling sequences, dual weight verification checks, and material feeding automatically, requiring no manual intervention during production. This reduces labor requirements, minimizes human error, and enables easy maintenance while ensuring consistent high speed filling performance across extended production runs.

2. High Versatility with Quick Changeover Capability
The rotary powder canning system offers exceptional universality, allowing one machine to handle multiple packaging materials and container formats. Operators can switch between different product specifications by replacing only specific fixtures and guide components through the quick changeover system, while the main machine body and filling mechanisms remain universal. This design reduces capital investment for multi-product facilities and maximizes production flexibility without compromising precision weighing accuracy.

3. Multi-Point Detection System for Safe and Stable Production
The two-head powder packaging machine incorporates comprehensive detection functions at critical process points to ensure safe operation: can presence detection prevents star wheel rotation when cans are absent, coarse filling detection ensures cans are in position before bulk dosing starts, first weighing detection measures coarse fill accuracy and calculates precision fill requirements, precision filling detection verifies can presence before final dosing, and second weighing detection confirms final fill weight meets specifications. This multi-layer safety system protects both operators and equipment while maintaining consistent product quality.

4. Dual Weight Verification for Superior Fill Accuracy and Yield Improvement
The two-stage weighing system with dual weight verification provides closed-loop control that guarantees final product weight meets or exceeds target specifications, delivering significant yield improvement and reducing product giveaway. After coarse filling, the first weighing station measures actual weight and calculates the precise amount needed for final dosing. The second weighing station verifies final weight and provides data for continuous process optimization, ensuring consistent quality across all production batches with precision weighing technology that maintains ≤±1.5g accuracy.

5. Integrated Automatic Dust Extraction System for Hygienic Operation
Built-in vacuum dust collection with automatic dust extraction captures airborne powder particles during filling operations, maintaining a clean production environment and reducing product waste. The dust extraction system improves workplace air quality, minimizes powder accumulation on equipment surfaces, and helps meet food safety and occupational health requirements for hygienic operation. This feature is particularly valuable for food grade powder filling applications in dairy and nutraceutical industries.

6. Modular Design for Flexible Production Line Integration
The machine's modular design allows easy placement within various production line configurations and enables easy maintenance. It can be integrated with upstream can feeding systems and downstream capping machines, enabling seamless automated production flow from empty can input to sealed finished product output. The modular construction also simplifies spare parts management and reduces maintenance downtime.

7. Sealed Separation of Working and Control Areas
The working surface where powder filling occurs is hermetically sealed and separated from the control panel area. This design protects operators from powder exposure, prevents electrical components from contamination, and enhances both personnel safety and equipment reliability. The sealed isolation contributes to hygienic operation standards required for milk powder filling and pharmaceutical applications.

8. Enclosed Structure for Environmental Control
The fully enclosed machine construction contains powder within the filling chamber, preventing contamination of the surrounding production area. This closed-system design facilitates environmental monitoring and helps maintain clean room conditions required for food and pharmaceutical manufacturing, supporting compliance with GMP and food safety regulations.

9. Modern Aesthetic Design with Professional Appearance
The machine features contemporary industrial styling with clean lines, smooth surfaces, and professional appearance suitable for modern production facilities. The attractive design reflects quality manufacturing standards and enhances overall plant presentation, meeting the expectations of international clients and regulatory inspectors.

10. Advanced PLC Control System with Touch Screen HMI
The machine employs programmable logic controller (PLC) technology for high automation level, simplified operation, and convenient maintenance. The color touch screen HMI provides intuitive navigation, friendly user experience, and flexible parameter adjustment. Operators can easily monitor production status, modify recipe settings, and access diagnostic information through the graphical interface, enabling quick changeover between different products and efficient troubleshooting for easy maintenance.

Application Areas

Dairy Industry: Milk Powder Filling and Nutritional Powder Packaging
High speed filling of infant formula milk powder into 401, 502, and other standard tinplate cans for newborn, infant, and toddler nutrition products requiring precision weighing and contamination-free packaging with dual weight verification. Also suitable for adult nutritional powder packaging including senior nutrition formulas and sports nutrition milk-based powders into cans and jars for retail and institutional distribution with food grade powder filling standards.

Nutraceutical Industry: Protein Powder Canning and Supplement Packaging
Protein powder canning for whey protein isolate, whey protein concentrate, casein protein, and plant-based protein powders into cans and plastic containers for bodybuilding, sports nutrition, and meal replacement applications. The automatic powder filling machine handles vitamin and mineral powder blends, meal replacement powders, weight management formulas, and dietary supplement powders requiring accurate weight control and dust-free handling with hygienic operation.

Food Industry: Food Grade Powder Filling for Beverage and Specialty Products
Food grade powder filling for coffee creamers, instant drink mixes, cocoa powder, and beverage powder bases into cans for retail and food service markets. The rotary powder canning system packages collagen peptide powder, beauty supplement powders, probiotic powder blends, and functional food ingredients into moisture-barrier containers with precision weighing and yield improvement.

Pharmaceutical Industry: Pharmaceutical-Grade Powder Packaging
Pharmaceutical-grade nutritional powder packaging for electrolyte replacement powders, oral rehydration salts, and herbal medicine powders in compliance with GMP requirements. The dual-head powder filling machine ensures hygienic operation and precision weighing for medicinal powders requiring strict quality control and traceability.

Material Compatibility: The twin-head rotary powder filler is primarily designed for milk powder filling and is also suitable for nutritional powder packaging, protein powder canning, and similar free-flowing to moderately cohesive powder products. It handles powder filling into cans and bottles across various container formats including 50L and 25L specifications. Not recommended for highly cohesive, sticky, or extremely hygroscopic powders without additional material handling modifications.

Technical Specifications