Kara Sang Shekan
Kara Sang Shekan, with 26 years of experience in the design, manufacturing, and production of road and construction machinery, crusher equipment, asphalt plants, and ready-mix concrete plants.
With the most up-to-date knowledge in production, engineering, and design.

Crusher equipment

“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.”

دستگاه سنگ شکن کارا سنگ شکن

Why Kara Crusher?

Quality

Best price

High power of the machinery

Innovation

Warranty

Utilization of up-to-date engineering knowledge

Kara Sang Shekan Products

Jaw Crusher

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:

  • High power and capacity in crushing operations.
  • Robust structure and high resistance.
  • Quick and easy replacement of spare parts.
  • Wear parts made from high Molybdenum Manganese Steel.
  • Uniform output material load, aesthetic design, and reliable performance.
  • High efficiency and reduced maintenance costs.
  • Lower erosion and greater resistance compared to similar crushers.
  • Jaw Crushers are manufactured in various dimensions and capacities.

Rock Crusher

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:

  • Improved lubrication system for bearings.
  • Enhanced design for easier replacement and inspection of replaceable parts.
  • High device capacity and significant sand production volume.
  • Reduced operational and maintenance costs through manufacturing technology improvements.

Available Rock and Roll Models (Tertiary Crushers):

  • V8 Model: Features 12 diamonds, a 90 kW motor, and a capacity of 35 tons (8-0 output range).
  • V10 Model: Features 15 diamonds, a 110 kW motor, and a capacity of 40 tons (8-0 output range).
  • V100 Model: Features 15 diamonds, a 160 kW motor, and a capacity of 50 tons (8-0 output range).

Cone Crusher

“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:

  • Ideal for increasing the production of sand and aggregate.
  • Exceptional capability in crushing hard rock materials.
  • Suitable for deployment as a secondary crushing unit in mining operations.
  • High throughput capacity due to a large feed opening.
  • High efficiency and reduced maintenance costs achieved through three independent automatic lubrication systems.”

Impact Crusher

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.

Scrubber

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:

  • Equipped with 2 moving axles (shafts) for shorter lengths of 15 meters.
  • Equipped with 3 moving axles (shafts) for longer lengths ranging from 20 to 50 meters.
  • The internal baffling (or paddle configuration) within the scrubber varies depending on the specific application.
  • Power transmission is achievable through several methods:
  • Direct coupling to the moving axle (shaft).
  • Via a pinion gear system.
  • Via a chain gear system

Dryer Screen

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:

  • A modern sand washing unit equipped with two Italian vibrators.
  • Dynamic separation achieved through the forced reverse thrust of coarse aggregates (pebbles).
  • Discharge of muddy water is managed via the creation of a periodic reverse water flow in the side tanks.
  • Equipped with polyurethane components on all wear-exposed surfaces, including the screen deck, internal liners, cyclones, etc., ensuring instant production of clean, load-ready washed sand.
  • The discharged muddy water is entirely free of any coarse aggregates and is ready to be sent to a thickener for up to 90% clean water recovery and recycling.

Batching Plant

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:

  • Low Maintenance Cost
  • Customization Capability Based on Client Needs
  • High Production Quality and Ease of Relocation
  • Use of Reliable Equipment and Fully Automatic Control System Designed for High Durability

Thickener

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:

  • 90% Reduction in Wash Unit Water Consumption: Facilitates the recovery and reuse of water, which is critical in arid regions where most crushing lines are established.
  • Complete Environmental Compliance: Due to the minimal requirement for extensive civil and concrete structures.
  • Fast and Easy Installation: Can be set up in the shortest possible time.
  • Minimum Maintenance and Repair Costs: Compared to traditional sand washing systems.
  • Greater Environmental Safety and Cleanliness: Achieved by eliminating the need for conventional settling ponds used in traditional systems.

Vibrating Screen

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:

  • Available in two lubrication systems: oil and grease
  • Robust structure with high mechanical strength
  • Shafts made of alloy steel for enhanced durability
  • Double‑bearing system for greater stability
  • Lubrication system by oil bath or grease application
  • Body made from seamless steel sheets, free of weld joints
  • Fully equipped sealing and lubrication system
  • Standard inclination for precise particle classification
  • Higher efficiency compared to similar models

Vertical Shaft Impactor

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:

  • Equipped with three side doors for convenient maintenance and servicing.
  • Features a robust shaft and axle with high resistance to damage.
  • Equipped with multi-faceted liners.
  • Hammers are manufactured from manganese and anti-wear steel.
  • Capable of operating in two different directions.

Hydrocone Cone Crusher CH440

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.

Hydrocone Cone Crusher–CH & CS Series

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.

A Glimpse at Some of Kara Stone Crusher’s World-Class Projects

For what applications are stone crushing machines utilized?

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.