Multi-head Combination Weigher- Precise Weighing for Fluid Granular/Irregular Materials

Product Description

1. Opening Statement

Keypack Intelligent Multi-head Combination Weigher is a precision weighing solution designed for accurate, high-speed dosing of granular, irregular, and fluid materials. It delivers weighing accuracy of ±0.5g to ±1g with multi-head combination technology and intelligent control systems, achieving speeds from 65 to 120 packs per minute depending on model configuration. Ideal for snack foods, confectionery, hardware components, frozen foods, and pharmaceutical packaging applications requiring consistent portion control and minimal product giveaway.

2. Product Overview

The Keypack Intelligent (Kunbupack) Multi-head Combination Weigher series offers seven models (KW-A10, KW-A12, KW-A14, KW-AM10, KW-AM14, KW-AT10, KW-AT14) covering weighing ranges from 10g×1000g to 10g×3000g. Each unit features high-precision load cells manufactured to exacting standards, ensuring repeatable accuracy across millions of weighing cycles. The modular circuit board design enables intelligent multi-sampling stability modes that enhance combination accuracy while the memory hopper system temporarily stores weighed material to increase combination probability and improve overall precision.

Built with a welded frame construction integrating the chassis and central seat, the weigher provides exceptional structural rigidity that minimizes hopper stabilization time and maximizes throughput. The universal hopper weighing units enhance component interchangeability across the machine, simplifying maintenance and reducing spare parts inventory. Advanced features include high-speed asynchronous discharge to prevent material blockage, automatic compensation during mixing mode operation, and intelligent fault alarm prompts that streamline troubleshooting and maintenance procedures.

The system operates via a 7-inch touchscreen interface with stepper motor drive technology, offering precise control over feeding and discharge operations. Power requirements range from 220V/100W to 220V/1500W depending on model, with frequency options of 50/60Hz. Machine dimensions vary by configuration, with the compact KW-A10 measuring 1620(L)×1100(W)×1110(H)mm and weighing 430kg, while larger models like the KW-AM10 extend to 1950(L)×1280(W)×1690(H)mm at 750kg. Material contact parts can be configured in stainless steel or food-grade materials to meet hygiene and regulatory requirements across different industries.

3. Key Features and Machine Characteristics

• High-Precision Load Cells: Custom-manufactured sensors built to high-precision, high-standard specifications ensure consistent weighing accuracy of ±0.5g to ±1g across the operating range, minimizing product giveaway and maximizing profitability on high-volume production lines.
• Intelligent Multi-Sampling Stability Mode: Modular circuit board architecture implements advanced sampling algorithms that analyze multiple weighing combinations in real-time, selecting the optimal combination to achieve target weight with minimal deviation and maximum speed.
• Memory Hopper System: Dedicated memory hoppers temporarily store pre-weighed material batches, dramatically increasing the number of available combinations and improving overall weighing precision, particularly valuable for difficult-to-handle materials with irregular shapes or varying densities.
• High-Speed Asynchronous Discharge: Prevents material blockage and bridging by intelligently controlling discharge timing across multiple hoppers, maintaining consistent flow and eliminating production interruptions common with sticky, fragile, or irregularly shaped products.
• Automatic Mixing Mode Compensation: When operating in multi-product mixing applications, the system automatically adjusts combination algorithms to compensate for density and flow characteristic differences between materials, ensuring accurate mixed-ratio dosing.
• Segmented Main Distribution Pan: Allows a single machine to handle 2 to 6 different material types simultaneously with independent feeding control, enabling complex recipe formulations and multi-component packaging without requiring multiple weighers or manual intervention.
• Independent Main Vibrators: Separate vibration control for different materials allows precise adjustment of feed layer thickness and flow rate for each product type, accommodating materials with vastly different flow characteristics on the same machine.
• Reinforced Frame Construction: Welded one-piece frame design combining chassis and central seat provides superior structural rigidity compared to bolted assemblies, reducing hopper stabilization time by minimizing vibration transmission and enabling faster weighing cycles.
• Universal Hopper Weighing Units: Standardized hopper design across the product line enhances component interchangeability, reducing spare parts inventory requirements and enabling faster maintenance turnaround with minimal production downtime.
• Intelligent Fault Diagnostics: Real-time monitoring with intelligent alarm prompts identifies potential issues before they cause production stoppages, displaying clear maintenance guidance on the touchscreen interface to reduce troubleshooting time and technical skill requirements.

4. Application Areas

• Snack Foods: Potato chips pneumatic conveying to multi-head weigher for 50-150g pillow bag packaging; extruded snacks like shrimp crackers and corn puffs for stand-up pouch filling; mixed nut combinations with automatic ratio control for premium gift packaging.
• Confectionery: Hard candy irregular shape weighing for twist-wrap or flow-wrap applications; gummy candy sticky material handling with anti-blockage discharge; chocolate-coated products fragile item gentle handling for box or bag filling.
• Dried Fruits: Raisins high-speed weighing for multi-pack formats; dried cranberries sticky surface material for resealable pouch packaging; mixed dried fruit combinations with recipe control for trail mix applications.
• Frozen Foods: Frozen dumplings delicate handling for tray or bag packaging; frozen vegetable mixes multi-component ratio control; frozen french fries high-speed weighing for quick-service restaurant supply.
• Hardware Components: Small metal fasteners (screws, nuts, bolts) counting by weight for hardware store packaging; plastic injection-molded parts irregular shape handling for industrial supply distribution.
• Pharmaceutical & Nutraceutical: Tablet and capsule counting by weight for bottle filling; vitamin gummies sticky material handling for consumer packaging; herbal tea loose leaf weighing for sachet or tin filling.
• Pet Food: Dry kibble granular material weighing for bag filling; freeze-dried treats lightweight fragile product handling; mixed treat combinations with recipe formulation control.
• Bakery Products: Cookies irregular shape and fragile handling for tray or flow-wrap packaging; crackers high-speed weighing for multi-pack formats; granola clusters sticky material with anti-blockage features.
• Tea & Coffee: Loose leaf tea delicate handling for pyramid tea bag filling or tin packaging; coffee beans oily surface material weighing for valve bag or canister filling; instant coffee powder fine granular material for sachet packaging.
• Cereals & Grains: Breakfast cereal flake material gentle handling for box liner bag filling; granola mixed component ratio control for premium packaging; rice and grain products for consumer retail bag filling.

Material Suitability: Optimized for free-flowing to moderately sticky granular materials, small irregular-shaped items, flakes, chips, and small cylindrical or spherical products. Suitable for materials with particle sizes from approximately 3mm to 50mm. Not recommended for extremely sticky materials, very fine powders (below 1mm), or products requiring gentle handling beyond the machine's vibration control capabilities.