Keypack Intelligent Linear Weigher - Precise Weighing for Viscous/Granular/Vegetable Materials
Keypack Intelligent Linear Weigher is a versatile quantitative weighing solution designed for accurate portioning of challenging materials with poor fluidity and slight stickiness. It delivers precise measurement with customized food-grade sensors and stepless feeding control, featuring real-time material flow adjustment and modular control systems. Ideal for vegetable weighing, viscous granule portioning, sticky material packaging, fresh produce weighing, and grain measurement across food processing, agricultural packaging, and seasoning production lines.
Product Overview
This linear weighing scale combines advanced conveyor belt technology with precision load cell sensors to handle materials that conventional multihead weighers cannot process effectively. The system excels at weighing sticky materials like edible sugar and industrial salt, irregularly shaped vegetables such as cauliflower florets and onion slices, and stem-shaped products like fresh corn kernels that require gentle handling and accurate portioning.
The weigher's stepless feeding mode provides continuous real-time control over material flow, automatically adjusting belt speed and feed rate to maintain consistent weighing accuracy regardless of material characteristics. This intelligent feeding system prevents overfeeding of sticky materials and ensures uniform distribution of irregularly shaped vegetables, eliminating the accuracy problems common with fixed-speed feeding mechanisms.
Manufactured by Keypack Intelligent (Kunbupack), this linear weigher represents a specialized solution for food processors handling difficult-to-weigh materials. The highly integrated modular control system allows operators to modify parameters during production without stopping the line, adapting instantly to variations in material moisture content, stickiness levels, or piece size distribution. This operational flexibility is essential for fresh vegetable processing where product characteristics change throughout harvest seasons.
The entire machine construction utilizes food-grade stainless steel to ensure compliance with food safety standards and facilitate thorough cleaning between product runs. Customized food-grade conveyor belts are available in different surface textures and materials to optimize performance for specific applications—from smooth belts for free-flowing grains to textured belts for sticky or wet materials. The detachable structural design enables rapid disassembly for deep cleaning and maintenance, supporting HACCP protocols and allergen control requirements.
An independent gate mechanism automatically opens and closes based on signal feedback from the weighing system, ensuring precise discharge timing and preventing material spillage. All product-contact components feature quick-release designs that allow tool-free removal for cleaning, minimizing downtime between production batches and supporting multi-product facilities that require frequent changeovers.
Key Features and Machine Characteristics
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Stepless Feeding Control System: Real-time material flow adjustment through stepless feeding mode maintains consistent weighing accuracy across varying material characteristics, automatically compensating for changes in stickiness, moisture content, or piece size. This advanced feeding technology is critical for viscous materials and fresh vegetables where conventional vibratory feeding fails, ensuring stable performance without manual intervention.
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Customized Food-Grade Sensors: Specially designed precision load cells deliver accurate weight measurement for challenging materials including sticky granules, wet vegetables, and irregularly shaped products. These custom sensors maintain calibration stability in humid environments and resist contamination from product residues, providing reliable accuracy for regulated food packaging operations.
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Modular Control System: Highly integrated modular design enables real-time parameter modification during production, allowing operators to adjust target weights, feeding speeds, and discharge timing without stopping the line. This operational flexibility reduces waste during product changeovers and supports rapid response to quality control feedback.
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Food-Grade Stainless Steel Construction: Complete machine fabrication from food-grade stainless steel ensures compliance with food safety regulations, prevents corrosion in wet processing environments, and facilitates thorough sanitation. The non-porous stainless steel surfaces resist bacterial growth and withstand aggressive cleaning chemicals, supporting GMP and HACCP requirements.
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Customizable Conveyor Belt Options: Application-specific food-grade conveyor belts optimize performance for different material types—smooth belts for free-flowing grains, textured belts for sticky materials, and perforated belts for wet vegetables requiring drainage. Belt customization ensures gentle product handling while maintaining accurate weight measurement across diverse applications.
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Detachable Structural Design: Quick-release components and tool-free disassembly enable rapid cleaning and maintenance, minimizing production downtime and supporting allergen control protocols. The modular construction allows individual section removal for deep cleaning without disturbing calibration, essential for multi-product facilities with strict sanitation requirements.
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Automatic Gate Control: Independent gate mechanism responds to weighing system signals for precise discharge timing, preventing material spillage and ensuring accurate portion delivery to packaging containers. The automated gate operation eliminates manual intervention, improving consistency and supporting high-speed production requirements.
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Quick-Clean Product Contact Surfaces: All material-contact components feature tool-free quick-release designs for rapid removal and cleaning, supporting frequent product changeovers and allergen management. The simplified cleaning procedures reduce labor costs and enable thorough sanitation between production runs.
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Versatile Material Handling Capability: Processes materials ranging from free-flowing grains to sticky viscous granules and irregularly shaped vegetables, providing operational flexibility for diverse product portfolios. This versatility eliminates the need for multiple specialized weighing systems, reducing capital investment and floor space requirements.
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Real-Time Accuracy Monitoring: Continuous weighing performance monitoring with automatic feedback adjustment maintains target weight accuracy throughout production runs, compensating for material flow variations and environmental changes. This intelligent monitoring reduces product giveaway and ensures regulatory compliance for net weight declarations.
Application Areas
Fresh Vegetable Processing:
- Cauliflower: fresh cauliflower florets portioning for retail packaging and food service containers
- Onions: sliced onions, diced onions, onion rings quantitative weighing for fresh-cut vegetable packaging
- Corn: fresh corn kernels, sweet corn pieces precise measurement for frozen vegetable packaging
- Broccoli: broccoli florets, broccoli stems portioning for fresh and frozen vegetable applications
- Peppers: diced bell peppers, sliced jalapeños, pepper strips weighing for salad mixes and food service
- Carrots: carrot slices, carrot sticks, diced carrots quantitative portioning for fresh-cut and frozen products
- Leafy vegetables: chopped cabbage, shredded lettuce, spinach leaves weighing for salad packaging
- Root vegetables: diced potatoes, potato wedges, turnip cubes portioning for frozen vegetable mixes
Sticky and Viscous Materials:
- Edible sugar: white sugar, brown sugar, raw sugar crystals quantitative weighing for retail packaging
- Industrial salt: coarse salt, fine salt, specialty salt blends precise portioning for food processing and chemical applications
- Sticky rice: glutinous rice, sweet rice, mochi rice weighing for Asian food packaging
- Wet grains: soaked beans, hydrated lentils, cooked grains portioning for ready-to-eat meal packaging
- Candied fruits: dried fruits with syrup coating, glazed fruit pieces weighing for confectionery packaging
- Coated nuts: honey-roasted nuts, sugar-coated almonds, caramelized peanuts portioning for snack packaging
Grain and Seed Products:
- Rice: long-grain rice, short-grain rice, specialty rice varieties quantitative weighing for retail bags
- Sesame seeds: white sesame, black sesame, toasted sesame precise measurement for spice packaging
- Coffee beans: whole roasted coffee beans portioning for retail coffee packaging
- Grains: quinoa, millet, amaranth, buckwheat weighing for health food and specialty grain packaging
- Pulses: lentils, split peas, chickpeas, beans quantitative portioning for dried legume packaging
- Seeds: sunflower seeds, pumpkin seeds, chia seeds, flax seeds precise weighing for health food packaging
Seasoning and Condiment Industry:
- MSG (Monosodium Glutamate): crystalline MSG granules accurate weighing for seasoning packets
- Chicken essence: chicken bouillon granules, chicken seasoning powder quantitative filling for retail packaging
- Spice blends: curry powder, chili powder, mixed seasonings portioning for spice jars and sachets
- Granulated seasonings: garlic granules, onion powder, ginger powder precise measurement for seasoning packaging
- Salt blends: seasoned salt, garlic salt, celery salt weighing for retail shaker bottles
Prepared Food and Ready-to-Eat Products:
- Pasta: cooked pasta shapes, noodles, macaroni portioning for ready-to-eat meal packaging
- Potato products: french fries, potato wedges, hash browns weighing for frozen food packaging
- Meat alternatives: plant-based protein chunks, textured vegetable protein portioning for vegetarian products
- Snack mixes: trail mix, party mix, cereal snacks quantitative weighing for snack packaging
- Dried fruits: raisins, cranberries, apricots, dates portioning for dried fruit packaging and baking supplies
Pet Food and Animal Feed:
- Wet pet food: semi-moist pet treats, soft pet food chunks portioning for pet food packaging
- Pet treats: jerky treats, dental chews, training treats weighing for retail pet product packaging
- Bird food: wild bird seed mixes, parrot food, finch seed quantitative portioning for pet store packaging
Material and Environmental Considerations:
- Suitable for: materials with poor fluidity, slight stickiness, irregular shapes, stem-shaped products, diced vegetables, and granular materials with moisture content
- Material characteristics: handles sticky, viscous, wet, or irregularly shaped materials that conventional multihead weighers cannot process effectively
- Size range: accommodates small granular materials, vegetable pieces, and block-shaped products with varying dimensions
- Moisture tolerance: food-grade stainless steel construction and customized belts suitable for wet or high-moisture materials
- Temperature range: operates reliably in refrigerated environments for fresh vegetable processing and ambient conditions for dry goods
- Not suitable for: extremely fine powders prone to dusting, highly fragile materials requiring zero-contact handling, or materials requiring hermetic sealing during weighing
