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What is Screen Machine?
Screen Machine It is one of the most widely used industrial devices used in mining crushing lines or other factories producing various products. The screening device is responsible for separating and grading any type of material according to the very high input and output volume ratio and based on size and application.
This device is built in two or three floors according to the needs of the mines or factories of our esteemed customers, which can separate incoming particles of various dimensions and sizes as quickly as possible and with great speed and accuracy, accelerating production capacity.
The separation and grading of materials in these screens is carried out with the help of vibration or shaking created with the help of an electric motor, and as a result, the incoming materials pass through floors of different dimensions and exit the device in a separated form.
How the screen machine works
The mechanism of operation of the screen device is that the driving force required to start the device is generated by the electromotor and this force is transmitted to the shaft by a pulley or a gear. As the shaft moves, the anchors installed on both sides of it move and create vibration on the device floors. The springs installed in the body of the grizzly screen control the vibration amplitude of the device and prevent impact on the body and bases. In multi-stage screens, the first screen floor is generally made of coarser mesh to separate larger stones and also to accommodate a larger load volume.
As the screen floors vibrate, minerals hit the installed screens at different angles, and smaller materials pass through the screens and are transferred to lower floors for more accurate separation. This process is repeated until the desired grading is reached and the number of floors installed on the screen machine is reached. An important point regarding the accuracy of grading minerals by the screen is the use of quality screens and accurate sizes in order to achieve different dimensions of materials.
The dimensions and size of the minerals after passing through the screen are very important for further crushing by devices such as jaw crushers or impact crushers, as well as for sand production by devices such as hydrocone crushers or rock and rock crushers, for proper load input and also for significantly reducing machinery depreciation.
Technical specifications of the screen machine
In general, the technical specifications of the screen machine are divided into different categories of screen parts, capacity, and types of screen machine production models. We will explain the details of the issues discussed below.
Screening machine parts
This device consists of the following main parts:
Types of Screens Machine
Machine Roll Company offers a variety of screening machines in different sizes, capacities, and models Grizzly, Boehringer, dual-axis, simple inclined, powder, and dewatering (Evo wash):
Grizzly Screen
The Grizzly Screen Machine Roll is designed and manufactured to separate soil and coarse rocks and prevent soil and fine particles from entering the crushers.
Grizzly screen has many differences in the type of structure and its use compared to other devices. Also, its location in the mining project lines also has major differences compared to other screens. One of the most important features of grizzly screen is increasing productivity and reducing jaw crusher depreciation by preventing soil and small stones from entering the jaw crusher chamber and providing proper yield.
This screen is designed and manufactured in different dimensions and capacities and in two types: two-tier and three-tier. The tiers in this screen are designed in a sloping manner. Complete separation of fine particles from coarse stones is achieved due to the design and vibration of the grizzly screen and they are transferred to the tiers of the screen. On the first floor of this type of screen, unlike other screens, very resistant anti-wear steel blades are installed parallel to each other. The steel blades of this screen can be adjusted according to the needs of the crushing lines of mining projects and according to the requests of our esteemed customers.
Better separation of soil and smaller stones is achieved by high-quality and durable screens in the lower stages of the screen. Typically, eight or ten screens are used in the lower stage. The materials from these stages are then transferred via conveyor belts to other equipment in the production line for more precise separation or crushing.
The mechanism of operation of the grizzly screen is as follows: this device is installed at the beginning of mining projects and before the jaw crusher and is fed through the feeder or primary silo. Then, the crank shafts create vibration in the device floors with the help of the electric motor. By vibrating in the floors, the minerals move forward and the separation of materials is done efficiently. This prevents dust from entering the crushing chamber. In this way, only larger stones can enter the jaw crusher. In this way, the crushing efficiency of the jaw crusher increases and its wear and tear is greatly reduced.
In some mines, grizzly screens are mistakenly used as grizzly feeders, which are responsible for regulating the incoming materials with low soil content to the crushing lines. Normally, this type of screen is placed after the feeder at the beginning of the crushing lines and before the jaw crusher. Of course, it can be noted that the use of this type of screen is also possible in special cases. Dear customers, for more information, please contact our technical experts from the contact us section.
Benefits of Grizzly Screen
- After-Sales Services
- High capacity in separating materials
- Use of durable and wear-resistant steel combs
- Longer life and higher productivity with periodic service
- Very easy to use and very low depreciation cost of this device
- Easy and cost-effective service and maintenance by specialized technical experts
- Accurate separation of coarse stones for proper feeding to the jaw crusher
- Repairing and changing the nets in the shortest possible time according to the needs of our valued customers.
- Ability to adjust steel shoulders according to the needs of the mining project lines of our valued customers
Grizzly Screen Models and Capacities
It is possible to design and manufacture Grizzly screens in the dimensions and capacities of the proposed models, according to the needs of our valued customers. If you wish to inquire about the price, consultation, and purchase of Grizzly screens, please contact the company’s experts from the contact us section.
- Grizzly screen 3 meters
- Grizzly screen 4 meters
- Grizzly screen 6 meters
Boehringer Screen
The Boehringer screen is one of the screen models that was first manufactured by the German company Boehringer in 1970 in cooperation with the Machine Roll Company. Today, the Boehringer screen is used with the same mechanism, but with more modern and powerful technologies, in material separation processes in mines, and it is still one of the most popular types of screens in terms of quality, capacity, and separation power.
The Boehringer screen is usually installed in the middle of the crushing lines of mining projects and before the Impact crushers or the VSI crushers (rock and rock) or the hydrocone crushers and is fed through the materials output from the jaw crusher. This screen is designed and manufactured in different dimensions and capacities and in two types: two-tier and three-tier. The tiers in this screen are designed to be inclined. Complete separation of fine particles from coarse rocks is achieved due to the design and vibration of the Boehringer screen and they are transferred to the lower tiers of the screen.
The mechanism of operation of the Boehringer screen is that the crank shafts create vibration in the device floors with the help of the electric motor. By vibrating the floors, the minerals move forward and the smaller materials are transferred to the lower floors and the materials are separated efficiently. Considering the number of floors installed on the device and the screens installed on the floors, each floor performs the desired size separation efficiently and transfers it to its own separate output chute.
Dear customers, you can contact our technical experts from the contact us section for more information.
Benefits of Boehringer Screen
- After-Sales Services
- High capacity in separating materials
- Fully automatic lubrication system
- Using durable and wear-resistant steel mesh
- Longer life and higher productivity with periodic service
- Very easy to use and very low depreciation cost of this device
- Easy and cost-effective service and maintenance by specialized technical experts
- Repairing and changing the nets in the shortest possible time according to the needs of our valued customers.
- A quality product produced through the cooperation of Machine Roll Company with Boehringer, Germany.
- Accurate separation of minerals due to having separate floors, screens and outlet chutes
Boehringer screen models and capacities
It is possible to design and manufacture Boehringer screens in the dimensions and capacities of the models offered, according to the needs of our valued customers. If you would like to know the price, advice, and purchase Boehringer screens, please contact the company’s experts from the contact us section.
- Boehringer screen 6 meters
Double-Axis screen
The double-axis screen is designed and manufactured for grading and separating minerals with high capacity in mining project lines.
One of the biggest problems for miners in mining lines is the improper loading of materials into crushers due to the inability of screens to properly separate. Considering the need of concrete production companies and asphalt plants, etc. for 3 and 6 mm size grading, this screen is the best option. The strength and low slope of the floors of this type of screen are a good solution for precise separation of minerals in different capacities. The movement of the two-axis crank, with the help of the electric motor, transmits a very special type of vibration to the flat floors of the device. This action causes uniform movement of the materials on the grids.
The double-axis screen is usually installed in the middle of the crushing lines of mining projects and before the Impact crushers or the VSI crushers (rock and rock) or the hydrocone crushers and is fed through the materials output from the jaw crusher. This screen is designed and manufactured in different dimensions and capacities and in two types of two-tier and three-tier. The tiers in this screen are designed as flat. Complete separation of fine particles from coarse rocks is achieved due to the design and vibration of the double-axis screen and they are transferred to the lower tiers of the screen.
The mechanism of operation of the Boehringer screen is that the crank shafts create vibration in the device floors with the help of the electric motor. By vibrating the floors, the minerals move forward uniformly and the smaller materials are transferred to the lower floors and the materials are separated efficiently. Considering the number of floors installed on the device and the screens installed on the floors, each floor performs the desired size separation efficiently and transfers it to its own separate output chute.
This type of screen is considered the most suitable device due to the different sizing of high-quality meshes and uniform movement for separating fine-grained materials at high capacities. Dear customers, for more information, please contact our technical experts from the contact us section.
Advantages of a Double-Axis screen
- After-Sales Services
- Easy and low-cost service and maintenance
- Generating specific vibrations through a two-axis crank
- Accurate separation of minerals in different capacities
- Very easy to use and very low depreciation cost of this device
- Load capacity and efficiency due to much higher power than other screens
- Using durable and strong alloys to increase the lifespan of the device
- Repairing and changing the nets in the shortest possible time according to the needs of our valued customers.
- Better separation and greater efficiency due to the flat plates of this type of screen compared to inclined screens.
Models and capacities of double-axis screen
Designing and manufacturing of biaxial screens in the dimensions and capacities of the proposed models is possible according to the needs of our valued customers. If you wish to inquire about the price, consultation and purchase of double-axis screens, Please contact us at the company’s experts.
- double-axis screen 4 meters
- double-axis screen 5 meters
- double-axis screen 6 meters
- double-axis screen 7 meters
Simple inclined screen
A simple inclined screen is designed and manufactured for grading and separating minerals with high capacity and a more affordable price compared to other screen models, in mining project lines.
Simple inclined screens are typically placed at the beginning or end of crushing lines in mining projects. This screen is designed and manufactured in different dimensions and capacities and in two types: two-floor and three-floor. The floors in this screen are designed in a sloping manner. Complete separation of fine particles from coarse stones in terms of design and vibration type Simple inclined screens are performed and transferred to the lower screens.
These types of screens are manufactured to separate materials in various sizes. These screens are widely used for separating materials both at the beginning and at the end of the crushing lines. One of the advantages of these types of screens is their more affordable price compared to other screen models.
The mechanism of operation of a simple inclined screen is that the crank shafts create vibration in the device floors with the help of an electric motor. With vibration in the floors, the minerals move forward and smaller materials are transferred to the lower floors and the materials are separated efficiently. Considering the number of floors installed on the device and the screens installed on the floors, each floor performs the desired size separation efficiently and transfers it to its own separate output chute. Dear customers, you can contact our technical experts from the contact us section for more information.
Advantages of a simple inclined screen
- After-Sales Services
- Easy and low-cost service and maintenance
- More affordable price compared to other screens
- Accurate separation of minerals in different capacities
- Very easy to use and very low depreciation cost of this device
- Placement at the beginning and end of crushing lines in mining projects
- Using durable and strong alloys to increase the lifespan of the device
- Repairing and changing the nets in the shortest possible time according to the needs of our valued customers.
Simple inclined screen models and capacities
Designing and manufacturing simple inclined screens in the dimensions and capacities of the proposed models is possible according to the needs of our valued customers. If you wish to inquire about the price, consultation and purchase of simple inclined screens, Please contact us at the company’s experts.
- simple inclined screen 4 meters
- simple inclined screen 5 meters
- simple inclined screen 6 meters
Dewatering screen (Evo wash)
A dewatering screen or drying screen is a modern, up-to-date designed device that, in addition to washing sand and fine aggregates from impurities and mud, is also responsible for reducing moisture and grading them. For this reason, they are also known as drying screens or dewatering screens.
The dewatering screen or drying screen has many differences in the type of structure and the way it is used with other devices. Also, its location in the mining project lines has major differences with other screens. The most important feature of the dewatering screen is the significant reduction of moisture and the separation of materials with great precision in order to increase the value of the sand (SE).
This screen, like other screens, is made in different sizes and capacities. Unlike other screens that include two or three different floors, the dewatering screen or drying screen has only one floor. The floor of this type of screen is designed to be inclined and, unlike other screens, is designed to be inverted and inclined towards the back of the device. Another difference that distinguishes this device from other screen devices is the use of polyurethane meshes in sizes with micron accuracy, unlike the use of wear-resistant steel meshes in other screens.
The polyurethane meshes installed on this machine prevent the waste of valuable fillers for use in concrete production and also maintain the sand fineness factor (FM) and increase the sand value (SE). Because this type of screen is equipped with a two-axis system, it can create appropriate vibration along the floor and enable the best separation of materials and the highest production capacity. At the bottom of this machine, a large water tank is installed to collect the water separated from the sand along with the valuable filler.
The mechanism of operation of the dewatering screen or drying screen is as follows: the sand produced by the VSI crusher (rock and rock) or the wet and washed sand by the sand washing machine is transferred to the screen machine and poured onto the polyurethane mesh. The crank shafts create vibration in the machine floor with the help of the electric motor.
With the powerful vibration of the screen floor by the two-axis system and also with the help of the reverse slope of the device, the wet sand moves forward on the grids, and at the same time, the water separated from the sand along with the filler is transferred into the lower tank after passing through the grids, and the sand is dewatered efficiently.
The valuable sand filler is transferred into the water tank after passing through the screen mesh and settles. To recover this valuable material, the fillers, along with the water in the tank, are transferred to the top of the screen through polyethylene pipes connected to a powerful water pump. After the fillers are transferred to the top of the screen, the materials are passed through the cyclone installed on the device.
The fillers inside the cyclone are separated from the water by a rotating mechanism and are then poured back onto the coarser sands that are being separated on the screens. By repeating this process multiple times, the sand is dewatered efficiently and the waste of valuable filler is effectively prevented.
The most important advantages of a dewatering screen or drying screen over vibrating motor screens are easy and low-cost service and maintenance, as well as very easy use and very low depreciation of this device. Among the disadvantages of vibrating motor screens are the very high price, the very high maintenance cost of this type of device, and the simultaneous replacement of both motors in case of failure.
Due to the reasons mentioned above, as well as the extremely severe fluctuations in electricity in mines, which alone is one of the factors for early failure of the machine and motors, the water intake screen is the safest and most economical option for use in mines. Dear customers, for more information, please contact our technical experts from the contact us section.
Benefits of the Dewatering screen (Evo Wash)
- After-Sales Services
- Very large input volume of the device
- Ability to use in limited space
- Easy and low-cost service and maintenance
- No wastage of valuable filler (windsand)
- Modern technology and innovation in design and performance
- Has anti-abrasion polyurethane laces
- Producing a special and powerful vibration due to two crank shafts
- Very easy to use and very low depreciation cost of this device
- No damage or disruption to the device's performance due to severe electrical fluctuations
- Using durable and strong alloys to increase the lifespan of the device
- Repairing and changing the nets in the shortest possible time according to the needs of our valued customers.
- Significant reduction in moisture, while maintaining the softness factor (FM) and increasing the sand value (SE)
Models and capacities of Dewatering screens (Evo wash)
Designing and manufacturing of Dewatering screens in the dimensions and capacities of the proposed models is possible according to the needs of our valued customers. If you wish to inquire about the price, consultation and purchase of Dewatering screens, Please contact us at the company’s experts.
- Dewatering screen 3 meters
- Dewatering screen 5 meters
Allgaier Screen
An Allgaier screen or electric sieve is a device that consists of a round body and separates and classifies various fine and powdered materials by vibrating them. This device is usually made in one or more floors to classify materials into different sizes. Each floor has an outlet through which the screened materials exit the device.
An Allgaier screen, or electric screen, or vibrating round screen, is a device that is usually made in multiple layers and is also known as a round gyratory screen due to its large dimensions. An Allgaier screen or electric screen, is usually made of stainless steel or carbon steel, and its body is made of stainless steel. The construction of an Allgaier screen requires information about the type of material, chemical properties, production rate, etc.
The operation of the Allgaier screen or electric sieve is such that the material entering the screen is poured onto the first sieve plate. With the help of the power of the electric motor, the weights installed at the bottom of the device are set in motion. As the weights move, the springs installed on the device also move and create vibration.
As a result of the vibration of the springs in the horizontal and vertical directions, the finer materials are transferred to the sieve plates in the lower floors and the coarser materials in this floor are also discharged from the outlet valve in each floor. This process continues until the last sieve plate, which includes the finest sieve plate, in order to separate and grade the materials in a good way. The use of a suitable spring system in the body of this device adjusts the vibration amplitude and prevents damage to the device.
Benefits of Allgaier Screening
- After-Sales Services
- Very large input volume of the device
- Ability to use in limited space
- Easy and low-cost service and maintenance
- Modern technology and innovation in design and performance
- Has anti-wear meshes to separate powder materials
- Very easy to use and very low depreciation cost of this device
- Can be used indoors due to the lack of dust generation.
- No leakage of input load due to closed cycle and excellent separation
- Using durable and strong alloys to increase the lifespan of the device
- Producing specific and powerful vibrations in different directions due to the type of spring placement
- Repairing and changing the nets in the shortest possible time according to the needs of our valued customers.
Allgaier screen models and capacities
Designing and manufacturing Allgaier screens in the dimensions and capacities of the proposed models is possible according to the needs of our valued customers. If you wish to inquire about the price, consultation and purchase of Allgaier screens, Please contact us at the company’s experts.
- Allgaier screen 2 meters
Powdr screen
Unlike complex and different mechanisms, each of which has its own problems, the machine roll powder screen uses a simpler method for separating and granulating micronized powders.
Today, due to the many problems in complex mechanisms for producing micronized powders, such as wet systems and the use of cyclones or dry systems such as the use of bag filters, industrialized countries have moved towards simpler and more common methods with higher productivity. One of these simple methods is to use special powder screens for granulating micronized materials, which are also known as Schmidt screens. In this regard, Machine Roll Company, in line with leading industrial countries worldwide, has started to produce and manufacture these types of screens in various capacities.
The mechanism of operation of the powder screen is that the connecting rod installed at the back of the device is moved by the power of the electric motor. Inside the device, there is a plate on which the input load is poured. This plate is covered with anti-wear and resistant meshes and also in different sizes for separating and grading powdered and micronized materials. By moving the connecting rod, this plate moves back and forth and performs the sieving operation efficiently. Through this simple method, by increasing the number of screens and a special design, higher output power can be achieved in higher capacities.
Benefits of powder screen
- After-Sales Services
- Very large input volume of the device
- Easy and low-cost service and maintenance
- Has anti-wear meshes to separate powder materials
- Very easy to use and very low depreciation cost of this device
- Using durable and strong alloys to increase the lifespan of the device
- Repairing and changing the nets in the shortest possible time according to the needs of our valued customers.
Powder screen models and capacities
It is possible to design and manufacture powder screens in the dimensions and capacities of the proposed models, according to the needs of our valued customers. If you wish to inquire about the price, consultation and purchase of powder screens, Please contact us at the company’s experts.
- Powdr screen 4 meters
Price of screen
Considering the important factors discussed in the sections described, such as dimensions, capacity, weight, etc., one of the most important factors in choosing a screening machine is the price factor. As we have already mentioned, ordering a machine with larger dimensions will also increase the price. It should be noted that due to fluctuations in the price of the dollar and steel products, which are the basis of the raw materials for making screening machines, it is not possible to determine a fixed and specific price for this machine. For information on prices, advice, and ordering a screener, please contact the company’s experts through our contact us section.
