Granule Weighing Machine - Single-Head Linear Scale

The Keypack Intelligent Single-Head Linear Weighing Scale is a specialized viscous material weighing equipment designed for accurate dosing of sticky granules and irregular vegetables with poor flowability. It delivers 500g to 12kg weighing range with X(1) accuracy at speeds up to 80 bags per minute, featuring food-grade stainless steel construction and real-time parameter adjustment. Ideal for brown sugar portioning in food manufacturing, industrial salt packaging, fresh corn kernel dosing, and cauliflower floret weighing in produce processing facilities.

Product Overview

This linear weighing scale operates through a compact single-bucket configuration specifically engineered to handle sticky granules and irregular vegetable pieces that challenge conventional multi-head weighers. The system features a customized food-grade conveyor belt feeding mechanism that gently transports viscous materials and irregular produce without product damage, while dedicated high-precision load cell sensors continuously monitor material weight in real-time. The integrated modular PLC control system ensures precise weighing through independent signal processing, delivering stable performance for materials with poor flowability including moist sugar granules, sticky salt crystals, and fresh-cut vegetables with irregular shapes.

The advanced stepless vibrating feeder system enables uniform material distribution across varying granule sizes and shapes, accommodating products from fine brown sugar granules to large cauliflower florets and onion slices. The real-time parameter adjustment capability allows operators to modify weighing settings during production without stopping the line, optimizing performance for different sticky granular materials and fresh vegetable varieties throughout production shifts. This intelligent feeding control ensures consistent weighing performance across materials with varying moisture content, stickiness levels, and irregular geometries.

Unlike standard grain weighing machines designed for free-flowing materials, this specialized vegetable weighing machine incorporates patterned contact plates that reduce adhesion surface area, minimizing sticky material buildup on weighing surfaces. The independent pneumatic gate system provides precise material control based on signal feedback, enabling accurate dosing of small quantities of sticky granules and irregular vegetable pieces. The food-grade stainless steel construction throughout material contact areas meets international food-contact requirements and sanitary design principles for easy cleaning and contamination prevention in fresh produce and food processing environments.

Key Features and Machine Characteristics

Highly Integrated Modular Control System

The advanced modular PLC control system ensures precise weighing through independent signal processing, delivering stable operation and efficient control for sticky granular materials and irregular vegetables. The human-machine interface with 7-inch touch screen provides easy access to 100 preset weighing parameters with quick retrieval of settings for different weight ranges and material types, improving operational efficiency when switching between brown sugar granules, salt crystals, corn kernels, and various fresh-cut vegetables. This intelligent control system reduces operator training requirements and supports efficient production in food processing facilities requiring frequent product changes between sticky granules and fresh produce varieties.

Real-Time Parameter Adjustment During Operation

The unique real-time parameter adjustment capability allows operators to modify weighing settings during production according to actual material conditions without stopping the line, improving flexibility and ease of use for sticky granules with varying moisture content and irregular vegetables with different sizes. This adaptive control enables optimization of weighing performance when processing brown sugar with different stickiness levels, industrial salt with varying crystal sizes, and fresh vegetables with seasonal moisture variations, maintaining consistent accuracy across production batches. The real-time adjustment feature minimizes production downtime and product waste when transitioning between different sticky granular materials and fresh-cut vegetable varieties.

Stepless Vibrating Feeder System for Uniform Material Distribution

The stepless vibrating feeder system with continuous amplitude adjustment enables uniform material distribution across varying granule sizes and irregular shapes, supporting a wider weighing range for diverse product types from fine brown sugar granules to large cauliflower florets. This intelligent feeding control prevents material clumping and ensures consistent flow of sticky granules and irregular vegetable pieces, maintaining stable weighing performance for materials with poor flowability. The stepless feeding capability is particularly valuable for this powder weighing device when handling sticky materials including moist sugar granules and fresh-cut vegetables with high moisture content where conventional fixed-amplitude feeders cause material bridging and inconsistent flow.

Customized Food-Grade Conveyor Belt System

The customized food-grade conveyor belt system is specifically designed to accommodate sticky granular materials and irregular vegetable pieces, providing gentle product handling that prevents damage to delicate fresh-cut vegetables while maintaining consistent material flow for sticky granules. The food-grade belt material selection ensures compliance with international food-contact requirements for fresh produce and food processing applications, while the customizable belt configurations enable optimization for different material characteristics including sticky brown sugar, moist salt crystals, corn kernels, cauliflower florets, and onion slices. This specialized conveyor system reduces product damage and maintains material integrity in fresh vegetable processing operations.

Patterned Contact Plates to Reduce Sticky Material Adhesion

The innovative patterned contact plate design reduces the surface area in contact with sticky materials, effectively minimizing material adhesion and buildup on weighing surfaces that causes accuracy degradation in conventional smooth-surface weighers. This anti-stick feature maintains consistent weighing performance when processing brown sugar granules, dark sugar, and other sticky materials with high moisture content, reducing cleaning frequency and improving production uptime. The patterned plates enable reliable weighing of sticky granules that would cause excessive buildup and accuracy problems in standard linear weighing systems, supporting continuous operation in food processing facilities handling sticky granular products.

Independent Pneumatic Gate System for Precise Material Control

The independent pneumatic gate system with automatic open/close operation based on signal feedback enables precise material control for sticky granules and irregular vegetable pieces, supporting accurate dosing of small quantities and preventing material overflow. The pneumatic gates respond to real-time weight feedback, controlling material flow for optimal weighing accuracy when handling sticky materials with poor flowability and irregular vegetables with varying piece sizes. This precise gate control is particularly valuable for small-dose applications of expensive sticky granular ingredients and portion-controlled fresh vegetable packaging where material waste directly impacts production costs and profitability.

Food-Grade Stainless Steel Construction with Quick-Clean Design

The complete food-grade stainless steel construction throughout material contact areas ensures compliance with food hygiene and safety standards for fresh produce processing and sticky granular food applications, meeting international food-contact material requirements and sanitary design principles. The easy-to-disassemble structural design with quick-release components allows all product contact parts to be rapidly removed for thorough cleaning, reducing cleaning time and minimizing production downtime between different sticky granular products and fresh vegetable varieties. This sanitary design supports allergen control protocols in facilities processing multiple food products and enables efficient washdown cleaning in fresh produce operations requiring strict hygiene standards, making it an eco-friendly industrial weighing solution.

Application Areas

Food Manufacturing: Brown Sugar and Dark Sugar Granule Packaging

Food manufacturers utilize this linear weighing scale for brown sugar granule packaging in retail bags and foodservice containers, dark sugar dosing for specialty food products, and moist sugar granule portioning for bakery ingredient applications. The system handles sticky sugar granules with varying moisture content and crystal sizes, maintaining consistent weighing performance despite poor flowability characteristics that challenge conventional weighers. The patterned contact plates prevent sugar buildup on weighing surfaces while the real-time parameter adjustment enables optimization for different sugar moisture levels, supporting production of retail brown sugar packages, bulk foodservice sugar containers, and bakery ingredient portions for commercial baking operations.

Salt Processing: Industrial Salt and Specialty Salt Crystal Weighing

Salt processors deploy this hardware weighing device for industrial salt crystal packaging in various granule sizes, specialty salt dosing for food processing applications, and moist salt granule portioning for chemical and water treatment industries. The Keypack Intelligent (Kunbupack) viscous material weighing equipment accommodates salt crystals with varying moisture content and stickiness levels, maintaining accurate weighing despite poor flowability from humidity exposure and crystal clumping. The food-grade stainless steel construction withstands corrosive salt environments while the quick-clean design enables efficient cleaning between different salt varieties, serving industrial salt packaging, food-grade salt processing, and specialty salt production for water softening, chemical processing, and food manufacturing applications.

Fresh Produce Processing: Corn Kernel and Vegetable Floret Portioning

Fresh-cut vegetable processors employ this vegetable weighing machine for corn kernel portioning in fresh vegetable trays and frozen vegetable bags, cauliflower floret dosing for fresh-cut vegetable packages and foodservice containers, and onion slice weighing for salad mixes and prepared food applications. The system handles irregular vegetable pieces with varying sizes and moisture content, maintaining gentle product handling that prevents damage to delicate fresh-cut vegetables while achieving consistent portion weights. The customized food-grade conveyor belt system transports fresh vegetables without bruising or crushing while the sanitary stainless steel construction supports strict hygiene requirements in fresh produce processing facilities serving retail grocery, foodservice distribution, and prepared food manufacturing markets.

Food Processing: Chunked and Diced Vegetable Dosing

Food processors utilize this weighing scale for chunked vegetable portioning in frozen vegetable products and ready-meal applications, diced vegetable dosing for soup mixes and prepared food ingredients, and stem vegetable weighing for stir-fry mixes and vegetable medleys. The system accommodates irregular vegetable shapes and sizes including broccoli stems, carrot chunks, celery pieces, and pepper strips, maintaining accurate weighing despite varying piece geometries and moisture content. The stepless vibrating feeder ensures uniform distribution of irregular vegetable pieces while the quick-clean design enables efficient sanitation between different vegetable varieties, supporting frozen vegetable production, ready-meal manufacturing, and food ingredient processing for retail and foodservice markets.

Salad Production: Vegetable Salad Mix and Fresh Produce Blend Packaging

Salad processors and fresh-cut produce manufacturers employ this weighing system for vegetable salad mix portioning combining multiple irregular vegetable pieces, fresh produce blend dosing for retail salad packages and foodservice containers, and mixed vegetable weighing for prepared salad products and meal kit applications. The system handles combinations of irregular vegetables including lettuce pieces, tomato chunks, cucumber slices, and pepper strips, maintaining consistent portion weights despite varying piece sizes and moisture content across different vegetable components. The gentle conveyor belt handling preserves delicate salad vegetables while the sanitary design supports food safety requirements in fresh-cut salad production facilities serving retail grocery, foodservice distribution, and meal kit subscription markets.

Specialty Food: Sticky Granular Ingredient Dosing

Food ingredient processors utilize this grain weighing machine for sticky granular ingredient portioning in food manufacturing applications, moist granule dosing for bakery and confectionery production, and specialty granular material weighing for food formulation and recipe applications. The system handles sticky granular ingredients with poor flowability including moist coconut flakes, sticky dried fruit pieces, and granulated food additives, maintaining accurate weighing despite material adhesion challenges. The patterned contact plates minimize ingredient buildup while the real-time parameter adjustment enables optimization for different ingredient moisture levels, supporting food ingredient packaging, bakery supply operations, and specialty food manufacturing for commercial food production and industrial food processing markets.

Foodservice Supply: Fresh Produce Portion Control

Foodservice suppliers and institutional food processors employ this weighing system for fresh produce portion control in foodservice containers and institutional meal trays, vegetable side dish dosing for school lunch programs and hospital meal services, and prepared vegetable weighing for catering operations and commercial kitchen applications. The system handles fresh vegetables in various forms including corn kernels for side dishes, cauliflower florets for vegetable medleys, and onion slices for burger toppings and sandwich preparations, maintaining consistent portion sizes for cost control and nutritional compliance. The food-grade construction and sanitary design support food safety requirements in institutional foodservice operations serving schools, hospitals, corporate cafeterias, and commercial catering facilities.

Specialty Markets: Artisan and Ethnic Food Product Packaging

Specialty food producers utilize this weighing scale for unique sticky granular product packaging in artisan food markets, specialty ingredient dosing for gourmet food production, and niche granular material weighing for ethnic food applications and specialty retail products. The system accommodates unusual sticky granules and irregular materials including specialty sugar varieties, artisan salt crystals, and unique vegetable preparations, maintaining accurate weighing for small-batch production and specialty food manufacturing. The flexible parameter adjustment and customizable conveyor belt configurations enable optimization for diverse specialty products, supporting artisan food production, ethnic food manufacturing, and specialty retail packaging for gourmet food stores, ethnic markets, and specialty food distribution channels, demonstrating its versatility as light dust-prone material weighing equipment.

Technical Specifications