About second-hand Weighing machine

Weighing machines for fruits and vegetables are essential equipment in the food industry, retail, and agricultural sectors. These machines are designed to operate with high precision and efficiency, making them indispensable for businesses that process large quantities of fresh products. Whether it's weighing loose potatoes, apples, or other fresh products, weighing machines provide a solution for consistent and reliable weight measurement, which is crucial for both logistics and sales.

How Weighing Machines Work

Weighing machines ensure that the correct product weight is placed in the packaging. Various types of weighing machines are available, each with its own specific features. The most suitable type of weighing machine for your situation depends on the product, the desired weight, and the accuracy of the weighing process. A precise weigher can save an entrepreneur money by minimizing the overfilling of products in the packaging.

The operation of weighing machines is based on advanced weighing technologies that enable accurate measurements, even at high throughput speeds. Modern machines are equipped with digital displays and intuitive control panels, allowing operators to easily adjust settings and quickly switch between different product types and weight requirements. Additionally, some models feature functions like automatic tare correction, which subtracts the weight of the packaging to ensure a pure product weight.

Different Types of Weighing Machines

Weighing machines come in various capacities and configurations, depending on the specific needs of the business. In agriculture and horticulture, companies use high-capacity industrial weighing machines capable of weighing multiple kilograms of product at a time. Some of these machines are also equipped with integrated packaging systems, ensuring a seamless connection between the weighing and packaging processes.

Multihead Weigher: Precise Weighing for Smaller Packages

The multihead weigher is known for its speed and high accuracy, making it particularly suitable for smaller packages. Using vibrating chutes, multiple weighing hoppers are filled with small weights. The computer then calculates which combination of hoppers achieves the target weight with the least possible overfill. The multihead weigher is used for various types of fruits and vegetables, such as cherry tomatoes, beans, lettuce, cut vegetables, or fries.

Mechanical Belt Weighing Machine: For Weights Starting at 5 KG

A mechanical weigher features a weighing hopper connected to a mechanical or digital scale. Two conveyor belts (wide and narrow) fill the weighing hopper. When the fill weight in the hopper approaches the set weight, the wide belt stops, and the final kilograms are filled by the narrower conveyor. This ensures that the fill weight closely matches the target weight. Once the target weight is reached, the narrow conveyor also stops, and the hopper's contents can be manually emptied. After emptying, the hopper is refilled, and the cycle repeats. This type of weigher is used for weighing products such as potatoes, onions, carrots, beets, and other large vegetables. Manufacturers of these machines include Bijlsma Hercules, Delignie, Miedema, and Allround.

Weighing Machines in a Processing Line

Many weighing machines are modular, meaning they can be easily adapted, applied, or expanded with additional features, such as labeling modules or sorting mechanisms. This makes the machines particularly versatile and suitable for various applications within the food sector. They can be used to weigh loose products in combination with a packaging machine for filling pre-determined quantities into bags or boxes, depending on customer or market requirements.

Weighing machines for fruits and vegetables are often used in combination with various other machines to ensure efficient and automated processing of fresh products. These combinations are essential for optimizing production and packaging processes. Below are some commonly used machines that are often paired with weighing machines:

Before the Weighing Machine:

Washing and Drying Machines

Before fruits and vegetables are weighed, they are often washed to remove dirt and pesticides. These washing machines are usually integrated into the processing line so that the products can be transported directly to the weighing machines after washing. After washing, products are sometimes passed through drying machines to remove excess water. This prevents moisture from affecting the weight and ensures that products arrive at the weighing machine in optimal condition.

Sorting Machines

Optical Sorters: These machines sort products based on color, size, shape, or quality before they reach the weighing machine. By pre-sorting the products, weighing machines can guarantee consistency in weight and quality, which is important for products sold in retail.

Sorting and Grading Machines: These are used to sort fruits and vegetables based on specific criteria such as size and weight. After sorting, the products are directed to the weighing machines for further processing and packaging.

Conveyor Belts

Conveyor belts are used to move products from one machine to another, for example, from a sorter to the weighing machine and then to the packaging line. This ensures seamless integration of the various processes and reduces the need for manual intervention. Elevators transport products vertically from one processing stage to another, for example, from a washing machine to a weighing machine. This is particularly useful in facilities with limited space or when different processing lines are arranged on different levels.

After the Weighing Machine:

Packaging Machines

Flowpackers: Flowpack machines package products in continuous films, often with a hermetic seal. After weighing the products, the flowpacker ensures that they are quickly and efficiently packaged, which is particularly useful for small packages such as berries or cherry tomatoes.

Traysealers: These machines are ideal for packaging products in trays or containers. The weighing machine first weighs the products, after which the traysealer places the products in trays and seals them with a film, often under vacuum or with a controlled atmosphere to maintain freshness.

Filling Machines: These machines fill bags, jars, or other containers with a pre-determined amount of product. They are often used in combination with weighing machines to accurately package dosed amounts, for example, for bags of potatoes or mesh packaging for citrus fruits.

Palletizing Machines

After packaging, products are often stacked on pallets for transport or storage. Palletizing machines can automatically take packaged products from the line and efficiently stack them on pallets, significantly speeding up logistics.

Case-Packing Machines: These machines package multiple smaller packages into boxes or crates for distribution. They often work together with weighing and packaging machines to ensure that products are delivered in the correct quantities and packaging formats to distribution centers.

HOW TO FIND THE RIGHT SECOND-HAND WEIGHING MACHINE?

On this page, you will find an overview of all available used machines for weighing products. In the filter on the left, you can filter the machines in various ways, such as by brand, operation, or type. On the page of a specific machine, you will find all the necessary information about the product, including photos. Are you interested in one of the machines? You can easily request more information or a non-binding quote from us. Do you want to be sure of something? Contact us by phone or visit us to view the used machine yourself at our company. You will get the best impression of the machine if you have seen it yourself. Of course, we are also happy to advise you on which used weighing machine best suits your situation.

HOW DO WE OPERATE AT DUIJNDAM MACHINES?

At Duijndam Machines, we always strive to have as wide a range of high-quality machines as possible. Our stock usually includes around 1,400 used machines. Our philosophy is that our customers should be able to use the machines we deliver for many years. The choice for quality begins with a critical purchasing policy. After acquisition, we check the machines on various points. Then follows a thorough cleaning and any necessary repairs to the offered machine. Meanwhile, clear photos and a description are added to our website, allowing potential customers to orient themselves well online. Once you have found a suitable machine, it can be delivered worldwide to your door if necessary. If you are interested in one of our machines, please contact us, and we will provide you with personalized advice.