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Macro-dosing

Macro-dosing

Single and/or double hopper scales for macro-dosing are designed and built to meet demand with optimal operational reliability in modern process industries. With the JesHopper scale, it is possible to dose large batches. Hopper scales are designed for fast, accurate, and reliable feeding and discharge of materials such as grains and flours.

All Jesma hopper scales are designed and supplied with a modular construction, ensuring easy transport and a high degree of flexibility, allowing for future expansions without the need for major reconstructions.

Our standard range offers capacities from 200 kg to 10,000 kg.

Single scales

Consist of a weighing hopper, load cells, support legs, and space for a lower conveyor. They provide great flexibility and various adjustment possibilities. The material is filled through dosing devices from the top, and once the desired amount of material/product is reached, the JesHopper Single empties via the chain conveyor located at the bottom of the weighing hopper.

Double scales

The JesHopper Double is equipped with two hoppers: one for weighing and one for loading/storage. This allows a new load to begin while the previous one is being emptied, as the weighed load is quickly transferred to the lower hopper. This significantly increases the number of batches per hour.

The main difference between a single hopper scale and a double hopper scale is the ability to start weighing a new load before the system is emptied. The JesHopper Double has a higher batch capacity per hour since its design allows the weighing container to be filled while the previous batch is being emptied.

Flow measurement

Flow measurement

The need for flow measurement and control is essential in many stages of the process. Together with Jesma, we are able to measure product flow reliably, with two very useful alternatives depending on the application.

If we have available height space, the recommended system is JesIntake. However, if height is limited, the JesBelt weighing belts are the ideal solution.

The JesIntake range of scales is specially designed for inline weighing of bulk materials such as powders, granules, grains, and more, focusing on operational reliability and high precision. The equipment series includes a standard range of 13 sizes, with capacities from 12 m³/h to 2500 m³/h, making them suitable for handling high flow rates while maintaining high accuracy.

If height is limited, the solution to apply is a JesBelt conveyor, which features an incremental encoder (tachometer) mounted on the roller to allow continuous monitoring of the belt and ensure an immediate alarm signal in case of irregularities in belt transmission. The belt is equipped with load cells that guarantee high precision even with irregular material flow. The weighing conveyor is designed and built for continuous weighing of material transported on a belt or for regulating a specific material flow.

If an immediate solution is required, the JesBelt F1 is our standard range of belt weighers. With 1% accuracy and versatile functionality, it ensures precise and efficient performance. Its user-friendly design simplifies maintenance with easy belt replacement and integrated cleaning features, minimizing downtime.

The JesBelt F1 range is available in three configurations: basic, standard, and complete.

Microdosing

Microdosing

Microdosing systems have been specially developed for the fine dosing of ingredients, additives, and raw materials, where overdosing of micro-ingredients can be costly.

A key condition for a high-quality final product is controlled and precise dosing of ingredients. Micro and nano dosing systems are specially developed for the accurate dosing of ingredients. At Jesma, each system is tailored to meet the customer's requirements, and by carefully considering the product's characteristics, it makes precise dosing possible even for low-flow products.

With our technology, you will achieve:

  • Process safety: Avoid human errors such as placing a product in the wrong silo (silo opening system via barcode).
  • Cylindrical silos: Prevent product sticking in corners and eliminate rat holing.
  • Silo bottom scraper: Ensures a continuous and free flow for all raw materials.
  • Propeller and pneumatic lid: Maximizes precision and stops the flow at the exact moment.
  • Teflon-coated and cylindrical scales: Ensures complete and quick discharge.
  • Dust aspiration filtration system.

Below is an installation featuring multiple micro and nano dosing units installed in Poland.

The system can be arranged in circular, semi-circular, square, or other required layouts depending on the available space and location. Jesma offers various types of micro scales for the dosing system, each tailored to meet client needs and designed to guarantee complete emptying of the weighing container. The silos are available with live bottoms featuring scrapers and stirring screws, ensuring complete discharge of low-flowability materials and uniform feeding of the dosing screw.

Nano dosing scales
The JesBatch Nano dosing scale is designed to eliminate cross-contamination and operate with very high static precision for dosing and weighing small quantities of ingredients. The scale consists of a Teflon-coated weighing container that empties by being pneumatically tilted and vibrated with a pneumatic hammer to ensure complete emptying between batches. These scales range from 2 kg (+/- 0.5 g) to 30 kg (+/- 7 g).

Micro dosing scales
The JesBatch Micro scale features a weighing container with pneumatically activated bottom flaps for emptying. The Teflon-coated flaps open 90° to ensure complete emptying between batches. These scales range from 50 kg (+/- 10 g) to 200 kg (+/- 40 g).

Medi dosing scales
Jesma completes the range of dosing scales with the JesBatch Medi, designed for medium-sized ingredient dosing. To prevent dust accumulation in the environment, a slight negative pressure must be maintained in the scale, requiring aspiration. Additionally, the air from the lower pneumatic transport system must not affect the weighing process. This is achieved by installing a valve above the transport system. These scales range from 400 kg (+/- 100 g) to 1000 kg (+/- 250 g).

All scales are supplied with completely smooth interiors to ensure optimal emptying and minimal cross-contamination, combined with a sturdy and rigid construction for the highest possible operational reliability.