Keypack Intelligent Six-Head Linear Weighing Scale KB-AX6 is a precision automatic dosing system designed for high-accuracy quantitative weighing of free-flowing granular materials. It delivers 54 bags per minute with ±0.1-0.5g weighing accuracy, featuring food-grade stainless steel construction and modular control system with automatic amplitude adjustment. Ideal for sugar, salt, rice, seeds, and coffee in food processing, agricultural packaging, and industrial production environments.
Product Overview
The six-head linear weighing scale KB-AX6 operates through a synchronized linear bucket system where granular material flows from a central hopper through vibratory feeders into six independent weighing buckets arranged in a straight-line configuration. Each weighing bucket features a dedicated high-precision load cell sensor continuously monitoring material weight in real-time, with the integrated PLC control system calculating optimal bucket combinations to achieve target weight with minimal deviation. This grain weighing machine technology provides a compact footprint suitable for limited production floor space while maintaining high weighing accuracy for consistent free-flowing granular materials including granulated sugar, rice grains, coffee beans, and seeds.
The advanced modular control system integrates variable-frequency vibratory feeders with automatic amplitude adjustment, enabling precise material flow control from bulk hopper to weighing buckets without manual tuning. The stepless feeding mode continuously adjusts vibration intensity based on real-time weight feedback, preventing material overflow in weighing buckets while maintaining optimal filling speed for throughput efficiency. This intelligent feeding control ensures consistent weighing performance across granular materials with varying bulk densities and particle sizes.
The dual-material weighing capability allows simultaneous quantitative weighing of two different granular materials, enabling automated blending applications for mixed products. This granule weighing scale can achieve precise ratio control for sugar-salt mixtures, multi-grain combinations, and specialty seasoning granule blends, eliminating separate weighing and mixing operations while improving blend consistency. The system maintains independent weight targets for each material component, ensuring accurate formulation ratios for products requiring specific ingredient proportions.
The food-grade stainless steel construction throughout material contact areas meets FDA food-contact requirements and sanitary design principles for easy cleaning and contamination prevention. The quick-release bucket design enables tool-free disassembly for washdown cleaning between production runs, supporting allergen control protocols in multi-product food facilities. The optional pneumatic gate system at vibratory tray outlets provides enhanced flow control for small-dose applications, achieving superior accuracy for premium granular materials.
Key Features and Machine Characteristics
1. Advanced Modular Control System with Automatic Amplitude Adjustment
The integrated modular PLC control system with 7-inch touchscreen interface enables recipe storage for different granular materials and target weights, allowing rapid changeover between production runs of sugar, rice, coffee, and other granules with saved weighing parameters and vibration settings. The automatic amplitude adjustment function continuously optimizes vibratory feeder intensity based on real-time material flow and bucket fill levels, eliminating manual tuning requirements and reducing setup time when changing between granular materials with different flow characteristics. This intelligent automation reduces operator skill requirements, minimizes weighing errors, and supports efficient multi-product manufacturing in food packaging facilities requiring frequent product changes.
2. High-Precision Weighing with Dedicated Load Cell Sensors
Each of the six weighing buckets features a dedicated high-precision digital load cell with temperature compensation and vibration filtering, delivering weighing accuracy within X(1) range for various fill weights from 50g to 3,000g. This precision gravimetric dosing from Keypack Intelligent (Kunbupack) granule weighing machine ensures consistent net weight compliance meeting regulatory requirements for food labeling accuracy while minimizing product giveaway in high-volume packaging operations. The digital load cells provide superior stability compared to analog sensors, maintaining calibration accuracy across temperature variations and mechanical vibrations in production environments.
3. Dual-Material Weighing Capability for Blended Granular Products
The advanced control system supports simultaneous weighing of two different granular materials through split-hopper configuration, enabling automated blending applications such as sugar-salt mixtures for seasoning products, rice-grain combinations for multi-grain products, and coffee-chicory blends for specialty beverages. This dual-material capability eliminates separate weighing and mixing operations, reducing equipment investment and production floor space while improving blend consistency through precise ratio control. The system maintains independent weight targets for each material component, ensuring accurate formulation ratios for products requiring specific ingredient proportions.
4. Stepless Feeding Mode with Real-Time Material Flow Control
The variable-frequency vibratory feeding system with stepless amplitude adjustment provides continuous flow control from gentle trickle feeding for final weight approach to rapid bulk feeding for initial bucket filling. This intelligent feeding strategy achieves optimal balance between weighing speed and accuracy, completing weighing cycles efficiently while maintaining tight weight tolerances. The real-time flow control prevents material overflow, reduces product spillage, and minimizes cleaning requirements compared to fixed-amplitude feeders. This precise feeding control is valuable for expensive granular materials including premium coffee beans and specialty seeds where product loss impacts production costs.
5. Food-Grade Stainless Steel Construction with Sanitary Design
The food-grade stainless steel construction throughout material contact areas including hoppers, vibratory trays, weighing buckets, and discharge chutes ensures chemical compatibility with various granular food materials while meeting FDA food-contact material requirements. The sanitary design features including crevice-free welding, sloped surfaces for complete drainage, and polished finishes preventing material buildup enable thorough cleaning between production runs, supporting allergen control protocols in facilities processing multiple granular product types. The quick-release bucket design with tool-free disassembly allows washdown cleaning, minimizing changeover time in multi-product packaging operations.
6. Optional Pneumatic Gate for Enhanced Small-Dose Accuracy
The optional pneumatic gate system installed at vibratory tray outlets provides on-off flow control based on bucket weight feedback, enabling precise final weight approach for small fill weights where continuous vibration feeding may cause weight overshoot with fine granular materials. The pneumatic gate opens for bulk material feeding until approaching target weight, then closes for controlled trickle feeding through residual material in the vibratory tray, achieving enhanced accuracy for small-dose applications including specialty seeds and premium coffee portions. This enhanced accuracy capability reduces product giveaway compared to continuous feeding systems, generating cost savings in high-volume operations packaging premium granular materials.
Application Areas
Sugar and Salt Packaging
Food manufacturers utilize this granule weighing scale for white sugar packaging in retail bags from 250g to 2kg, salt dosing in consumer packages, and specialty sweetener filling including coconut sugar granules and stevia granules in premium packaging. The system handles granulated sugar with particle sizes from 0.3mm to 2mm, maintaining accurate fill weights while processing 40-50 bags per minute in vertical form-fill-seal operations. The stainless steel construction prevents contamination while the quick-clean design supports frequent washdown in facilities processing multiple granulated varieties for retail grocery and foodservice distribution markets.
Rice and Grain Weighing for Retail Packaging
Rice processors deploy this grain weighing machine for white rice packaging in consumer bags from 500g to 3kg, specialty rice dosing including basmati, jasmine, and arborio varieties in premium packaging, and multi-grain blend weighing combining rice, quinoa, and ancient grains in health food products. The system accommodates rice grain lengths from 4mm short-grain to 8mm long-grain varieties, maintaining consistent fill weights across production runs while the gentle vibratory feeding prevents grain breakage. The dual-material capability enables automated rice-seasoning granule blend packaging for flavored rice products and rice-lentil combinations for ready-to-cook meal kits.
Coffee Bean Dosing
Coffee roasters employ this weighing system for whole bean coffee packaging in retail bags from 250g to 1kg and specialty coffee portioning for single-serve pod filling operations. The system handles coffee beans with sizes from 6mm to 12mm, maintaining accurate weights for premium single-origin coffees while the stainless steel construction prevents flavor contamination between different roast profiles. The recipe storage capability enables rapid changeover between light, medium, and dark roasts with different bulk densities, supporting efficient multi-product operations in specialty coffee roasting facilities.
Seed and Agricultural Product Packaging
Agricultural suppliers utilize this six-head linear weighing scale for vegetable seed packaging including tomato, pepper, and lettuce seeds in retail packets from 10g to 100g, flower seed dosing for garden center distribution, and agricultural seed portioning including corn, soybean, and wheat seeds in commercial planting packages. The system handles seed sizes from 1mm small vegetable seeds to 10mm large bean seeds, maintaining accurate fill weights for regulatory compliance while the gentle handling prevents seed damage affecting germination rates. The compact design fits seed packaging facilities with limited floor space.
Seasoning Granule and MSG Packaging
Seasoning manufacturers utilize this weighing scale for MSG (monosodium glutamate) crystal packaging in retail bags and bulk containers, chicken essence granule dosing for consumer products, and seasoning granule portioning for foodservice and industrial applications. The system handles crystalline and granular seasonings with particle sizes from 0.2mm to 3mm, maintaining precise fill weights for regulatory compliance. The stainless steel construction withstands seasoning materials while the easy-clean design supports frequent product changes in facilities producing multiple seasoning varieties.
Sesame Seed and Small Grain Packaging
Food processors employ this grain weighing machine for sesame seed packaging in retail bags from 100g to 500g, specialty seed dosing including chia seeds, flax seeds, and hemp seeds in health food products, and small grain portioning for quinoa, amaranth, and millet in premium packaging. The system handles small seeds with sizes from 1mm to 4mm, maintaining accurate fill weights while the gentle vibratory feeding prevents seed damage. The food-grade construction ensures product quality for organic and specialty seed markets.
Optional Customizable Modules
The KB-AX6 offers customizable modules to enhance functionality for specific applications:
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Patterned Bucket: Textured surface design for improved material flow with sticky or cohesive granules
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Vacuum Bucket: Vacuum-assisted discharge for light dust-prone granular materials requiring controlled release
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Heat Sealing and Printing Device: Integrated sealing and coding for complete packaging automation
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Ultrasonic Edge Sealing Device: Precision sealing for specialty packaging applications
Technical Specifications
| Model |
KB-AX6 |
| Weighing Range |
50-3000g |
| Weighing Accuracy Range |
X(1) |
| Maximum Weighing Speed |
54 bags/min |
| Hopper Capacity |
3L |
| Number of Hoppers |
100 |
| Applicable Material Types |
6 |
| Control Interface |
7-inch touchscreen |
| Optional Devices |
Patterned bucket, Vacuum bucket, Heat sealing and printing device, Ultrasonic edge sealing device |
| Power Requirement |
220V/900W/50/60Hz/4A |
| Dimensions |
1170mm (L) × 1150mm (W) × 990mm (H) |
| Machine Weight |
220kg |
Delivery and Support
Keypack Intelligent provides comprehensive support including installation guidance, operational training, and technical documentation for the KB-AX6 six-head linear weighing scale. The modular design enables future capacity expansion and integration with vertical form-fill-seal machines, premade pouch fillers, and container filling systems, protecting capital investment and supporting business growth in food processing and packaging operations.
