“Kara Sang Shekan’s crusher equipment is among the highest quality machinery in the country. The Kara Sang Shekan group, since 1378 (1999/2000), in the field of manufacturing and production of road and construction machinery, crusher equipment, asphalt plants, and ready-mix concrete, by utilizing skilled and specialized personnel in the design, engineering, and production departments, has been able to meet the extensive needs of the country’s mines in the crushing, asphalt, and concrete production sectors. Relying on its technical knowledge and specialized workforce in various departments, this company offers its products and has exported them not only to our dear country Iran but also to the countries of Oman, Uzbekistan, Turkmenistan, Azerbaijan, Syria, and Iraq.”
The Jaw Crusher is utilized as the primary crushing unit, responsible for the initial reduction in size of stones and the processing of minerals and aggregates (sand and gravel). During continuous operation, the Jaw Crusher is exposed to wear; therefore, its components and the material used in its construction are made from Manganese Steel to reduce friction and wear in the crushing process and increase the lifespan of the parts. The jaw size in the Jaw Crusher is determined by the size and dimension of the rectangular shape of its upper inlet opening.
Jaw Crusher Key Features & Specifications:
The Rock and Roll device is utilized as a tertiary crushing unit. This Centrifugal Sand Maker—a type of Vertical Shaft Impactor (VSI) Rock Crusher—possesses the capability to produce a composite, multi-faceted load that conforms to the latest standards for producing aggregates (sand and gravel) for use in asphalt and concrete. Moreover, this Centrifugal Fine Crusher is widely applied in crushing hard stones such as Feldspar, Silica, Dolomite, Barite, etc., as its crushing system is autogenous (self-crushing).
System Improvements:
Available Rock and Roll Models (Tertiary Crushers):
“Cone Crushers, or Hydrocone models, are integral components in mineral crushing and processing circuits, capable of reducing feed material down to relatively fine sizes. It is essential to note that all wear parts are manufactured from high-Manganese Steel.
Key Features:
The HS Model Rotor Impact Crusher is designed for hard rock applications. It features three series of independently adjustable aprons, providing maximum control over the final product gradation. The upper apron is integrally cast from Manganese Steel, while the middle and lower aprons consist of an iron body overlaid with Manganese shoes. The machine’s heavy-duty disc rotor generates substantial torque and energy, ensuring uniform rotation even under full load, which contributes to significant energy savings. The hammers, aprons, and body protection liners are all fabricated from high-Manganese Alloy Steel, ensuring an extended operational lifespan.
This equipment is known by various names, including Dryer, Scrubber, and Mixing Washer (or Slurry Mixer), and is available in different dimensions regarding length and diameter. Rotary Scrubbers are utilized for washing crushed stone, mineral ores, sand and gravel, construction aggregates, and oil sands. This device serves as a primary washing unit and possesses a high capacity that allows it to wash large-sized materials and separate water-soluble clay.
Features related to Movement and Power Transmission:
This machine is employed in sand and gravel quarries specifically for dewatering (water removal) and enhancing the quality of sand produced by traditional washing equipment, such as spiral sand washers, thereby increasing the market value of the final product. The washing process in this unit occurs after the material exits the spiral sand washer.
The process is as follows: Sand, along with fines (silts/wind-blown sand), is mixed with water in the spiral washer. The resulting slurry is then transferred onto vibrating, wear-resistant polyurethane screens. Due to the vibration generated in the screen section, the aggregates undergo dewatering.
Key Features:
Kara Sang Shekan offers Batching Plants with mixer capacities of: 0.5 m³, 1 m³, 1.5 m³, and 2 m³.
Three-Stage Mixing Process in Company’s Twin Shaft Mixers
The mixing arms are mounted on three shafts that follow an incomplete spiral path. This arrangement causes the materials to move in a helical path around the shafts in two opposing directions. At the end of each shaft, an arm positioned opposite to the others guides the mixture onto the adjacent shaft. This action ensures the mixture is continuously circulated within the mixer while the materials simultaneously rotate around the spirals, resulting in true 3D mixing.
Intensified Mixing
The two mixing flows generated around the arms interfere with each other in the central section, leading to an intensification of the mix. This central zone is known as the “Turbulent Mixing Zone,” which significantly boosts the mixing capacity.
Superior Homogeneity and Efficiency
The company’s mixers can achieve 95% homogeneity in the mixture in less than 30 seconds, whereas this time often exceeds 60 seconds in other mixer types.
This speed is achievable at a low shaft rotation speed of 20 to 23 RPM. This slow speed results in lower energy consumption, reduced wear and tear, and prevents unnecessary stress on the aggregates.
Versatile Application of Twin Shaft Mixers
The Twin Shaft Mixers from Kara Sang Shekan perform exceptionally well in specific conditions and for specialized concrete types. They easily mix formulas containing granular materials from 0 to 18 mm and larger, achieving 95% homogeneity in under 30 seconds.
Another significant advantage of Twin Shaft Mixers over other types is observed at high capacities: while mixing time increases in other mixers as capacity rises, the mixing time remains unchanged in Twin Shaft Mixers regardless of capacity.
Key Advantages Summary:
Thickeners: A Unique Solution for Slurry Water Treatment in Sand, Aggregate, Iron Ore, Copper Mines, and More
Thickeners produced by Kara Sang Shekan (Kara Crusher) possess unique features that deliver higher efficiency compared to similar models, despite reducing production costs.
Key Benefits:
As the name suggests, vibrating screens are responsible for separating and producing various particle sizes in sand and gravel mines. However, vibrating screens can also be used in other industries and different fields of work.
They are manufactured in various lengths and widths, typically in 1‑, 2‑, 3‑, or 4‑deck configurations. Upon customer request, production of screens with more decks is also possible.
Features and Specifications:
Two-Way Sand Maker (VSI Crusher)
This Two-Way Sand Maker is suitable for crushing both hard mountain rocks and soft rocks. The optimal input size range for this machine is 0 to 120 mm, while the output size is specified to be between 0 to 8 mm. The rated beneficial load capacity is 40 tons per hour.
The machine is built with a 20 mm thick body plate and uses a 22230 size bearing. It is equipped with 6 high molybdenum manganese hammers. The motor power is 90 kW. The adjustment/check system is hydraulic, featuring two corresponding jacks for easy access and replacement of wear parts.
Additional Features:
Kara Cone Crushers (or Cone Crushers) are ideal for secondary and tertiary crushing applications. Their compact design and ease of servicing also make them an excellent choice for portable installations.
Specifically, the CH440 Cone Crusher features an advanced design that maximizes capacity relative to its size. The CH440 delivers high production efficiency and yields a superior product shape.
The CS and CH Cone Crushers are utilized as primary or secondary crushing units in mining operations. Their exceptionally high performance provides mine operators with a desirable output characterized by consistent gradation, all while generating remarkably low levels of dust. Furthermore, these crushing machines boast superior build quality and reliability.
Stone crushing machines play a vital role in various industries, employed to break down large, hard materials into smaller, usable fragments.
In mining operations, these machines are used to reduce the size of extracted rocks to dimensions suitable for transportation and subsequent processing. This initial process significantly lowers the cost and difficulty of material handling. In the road construction industry, stone crushers are utilized to produce aggregates such as gravel and sand, which are essential for road sub-bases and asphalt production. These aggregates provide the necessary foundation and structural integrity for roadways.
Furthermore, crushers have a significant role in construction material recycling. Demolished concrete and asphalt can be crushed into smaller pieces and reused in new construction projects, which helps conserve natural resources and reduce construction waste. Within the building materials sector, crushers are employed to produce various construction materials like gravel, sand, and crushed stone, which are indispensable for the manufacturing of concrete, asphalt, and other building components.
In cement production, stone crushers are used to break down limestone and other raw materials into appropriate sizes for the calcination process and subsequent cement manufacturing. In agriculture, these machines are used to break up large stones and clods of soil to prepare the land for cultivation and improve soil drainage. The chemical industry also utilizes crushers to pulverize chemical substances to increase the surface area, thereby facilitating chemical reactions.
Moreover, stone crushers have applications in the processing of rare and valuable minerals. Rocks containing these valuable materials are crushed before being processed for mineral extraction. In civil engineering projects, crushers are sometimes used for soil stabilization, where the crushed stone is mixed with soil to increase its strength and stability. In summary, stone crushers are indispensable tools across numerous industries, contributing to improved efficiency, cost reduction, and natural resource preservation.