Linear Weigher
As a professional linear weigher manufacturer, Smart Weigh provides reliable and cost-effective linear weighing solutions for small to medium production lines.
A linear weigher is designed to accurately measure and dispense precise quantities of product into packaging containers such as bags, pouches, bottles, or boxes.
The linear weigher machine uses one or multiple independent weighing hoppers equipped with load cells to control product feeding and discharge based on target weight.
Compared with multihead weighers, linear weighers feature a simpler mechanical structure, making them an ideal solution for uniform products, lower speed requirements, and cost-sensitive production lines.
Smart Weigh linear weighers are widely used in food and non-food industries, and can be seamlessly integrated with vertical form fill seal machines, pouch packing machines, jar packing machines, and conveyor systems.
Why Choose Smart Weigh’s LINEAR WEIGHER?
Choosing the right weighing solution is essential for maintaining stable output and controlling production costs.
Smart Weigh’s linear weighers are designed with practical production needs in mind, focusing on reliability, accuracy, and ease of integration.
Key Advantages:
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Stable & Consistent Weighing
Each weighing channel operates independently, ensuring consistent portioning for free-flowing and semi-free-flowing products. -
Simple Structure, Easy Maintenance
Fewer moving parts mean lower failure rates, easier cleaning, and reduced maintenance costs. -
Cost-Effective Solution
Ideal for startups, small factories, or production lines where ultra-high speed is not required. -
Flexible Integration
Compatible with VFFS machines, pouch packers, conveyors, and checkweighers for complete packaging lines.
Smart Weigh focuses not only on machine performance, but also on long-term operational stability, helping customers run their lines smoothly day after day.
HOW DOES LINEAR WEIGHER WORK?
A linear weigher measures product weight through individual linear vibrating channels.
Working Principle:
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Product is fed from the storage hopper into linear vibrating pans.
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Each pan vibrates independently, feeding product into a weighing hopper.
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The system monitors weight in real time and stops feeding once the target weight is reached.
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The weighed product is discharged into the packaging machine for bagging or pouch filling.
This straightforward weighing method makes linear weighers especially suitable for uniform products where complex combination calculations are not required.
What Kinds of Packing Machines Can Work with a Linear Weigher?
A linear weigher machine is a weight-dosing unit. It can work with multiple packaging formats as long as the packing machine can accept a weight-controlled discharge (via chute, funnel, or transfer conveyor). Common compatible packing machines include:
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VFFS (Vertical Form Fill Seal) Bagging Machine
The linear weigher drops the target weight into the forming tube, and the VFFS machine forms, fills, and seals the bag.
Best for: grains, sugar, salt, beans, snacks, small hardware. -
Pouch Packing Machine (Premade Pouch / Doypack / Zipper Pouch)
The linear weigher doses product into an open pouch held by the pouch machine, then the pouch is sealed.
Best for: retail-ready pouches, higher-value products, frequent SKU changes. -
Jar Filling Packing Machine (Jar / Bottle / Can Filling Line)
The linear weigher discharges into jars or bottles through a funnel or guided chute, typically combined with a conveyor, capping, and labeling system.
Best for: nuts, candies, coffee beans, pet treats, granules, small parts. -
Tray Packing Machine (Tray Filling / Tray Sealing / MAP-ready Lines)
The linear weigher doses product into trays before sealing (standard sealing or MAP), widely used when presentation and portion control matter.
Best for: fresh-cut produce, frozen foods, ready meals, mixed items.
If you’re planning a new line or upgrading an existing one, Smart Weigh offers complete linear weigher packing line solutions—from the linear weigher and conveyors to VFFS, pouch packing, jar filling, and tray packing systems. Contact Smart Weigh to get a configuration recommendation based on your product, target weight, and required output.
LINEAR WEIGHER – KEY SELECTION FACTORS
When selecting a linear weigher, consider the following factors:
Product Characteristics – Granule size, flowability, stickiness, and fragility.
Target Weight Range – Single-dose or small batch weighing requirements.
Production Speed – Required output per minute and overall line capacity.
Integration Requirements – Compatibility with VFFS machines, pouch packers, conveyors, and control systems.
Cleaning & Hygiene Needs – Especially important for food, agricultural, and chemical products.
Smart Weigh offers customized linear weigher configurations based on your product and production goals.
Looking for a practical weighing pa;cking solution for your production line?
Our engineering team is ready to help you choose or customize the right linear weigher based on your product, output, and packaging requirements.
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