Granite, one of the main rocks in the earth's crust, is an igneous rock formed by the condensation of magma beneath the earth's surface. The main components are feldspar and quartz. The etymology of granite is Latin granum, meaning grain or granule. Because granite is a plutonic rock, often can form well-developed, naked eye discernible mineral particles, hence the name. Granite is a deep-seated acidic igneous rock formed by the condensation of magma in the deep underground. Some granites are gneisses or migmatized rocks formed by metamorphism of magma and sedimentary rocks. Granite consists mainly of feldspar, quartz, black and white mica, and quartz content is 10% to 50%. The content of feldspar is about 2/3 of the total, which is divided into orthoclase, plagioclase (alkali lime) and microcline (potassium alkali). The mineral compositions of different varieties are not the same, but also contain pyroxene and hornblende.
At present, the technology of granite processing equipment and granite crushing production line is quite mature in China. Vanguard Sandstone Projects Department has allocated production lines for granite production customers in many areas in China. The two-stage crushing process can be used in the crushing process of granite. The first stage is jaw crusher, the second stage is counter-attack crusher, and the circular vibrating screen can be used to separate 1-2, 2-4, 4-8 of course. Different specifications of stones to meet different architectural needs. Vanguard granite crusher has large crushing ratio, high output, uniform granularity, simple structure, convenient maintenance, low production costs, etc. Vanguard granite crusher has complete models, various types, and can also be tailored to meet customer requirements of the granite crushing production line. The granite crushing production line designed and produced by Vanguard is mainly composed of vibrating feeder, jaw crusher, counterattack crusher, vibrating screen, belt conveyor, centralized electronic control and other equipment. In order to meet the different processing needs of customers, it can be equipped with cone crusher and dust removal equipment. The design output is usually 50-500 tons / hour. Large pieces of stone are evenly fed into the crusher by the vibrating feeder in the silo for coarse crushing, and the crushed stone is further crushed by the belt conveyor to the counterattack crusher; the fine crushed stone is fed into the vibrating screen by the belt conveyor for screening, and several different specifications of stone are screened out to meet the requirements of grain size. The finished product is sent to the finished product stack by the belt conveyor, and the stone which does not meet the grain size requirement is sent back by the belt conveyor to the impact crusher for breaking again, forming a closed circuit multiple cycles. The finished product granularity can be combined and graded according to the user's needs. In order to protect the environment, auxiliary dust removal equipment can be equipped. Granite macadam is a kind of high-quality and widely used building stone. It is hard to be eroded by acid-alkali or weathering because of its hard texture. Moreover, granite resources are abundant and widely distributed. Nine percent of China's land (about 800,000 square kilometers) is granite rock mass. Granite is characterized by its high compressive strength, low crushing value and endurance. Strong corrosion, good adhesion of asphalt and other characteristics, is generally recognized as the best stone materials used in the construction of highway, railway, airport runway in the world. Because of its porous and hard characteristics, mixing it in concrete can reduce the weight of the concrete, but also a strong, at the same time with sound insulation, heat insulation and other advantages. Point, become high quality lightweight aggregate concrete aggregate. Granite can be used to make mortar and concrete according to different stone specifications. 1-2, 2-4, 4-8 are very common stone specifications. China's infrastructure construction can not stop, the domestic granite market has been extremely hot, which has become a major driving force for the development of China's stone machinery industry.
Barmac vertical shaft impact (VSI) crushers were the first vertical shaft impactors in the world. The original Barmac was developed in New Zealand over 40 years ago after which the VSI crushers have spread to thousands of crushing sites around the globe.
The secret behind Barmac crushers efficiency is the unique crushing process. While most other crushers reduce rocks by pushing them by force against metal, Barmac crushers also utilize the rock to crush itself.
This so called autogenous crushing action results in lower cost per ton than any other impact crushing method. Furthermore, rock-on-rock crushing has proven to produce end products that have precise and homogenous shape.
Barmac crushers are especially useful for producers who are after cubical end products used for example in concrete, asphalt, groundwork materials, manufactured sand, heap leaching, pre-grinding, industrial minerals, and recycling applications.
Service time is drastically reduced with quick access to the rotor parts via an inspection door. The roof lifter and rotor service arm eliminate the need for an external crane in regular maintenance which simplify servicing the internal workings and speed up rotor changes.
Selecting and applying a Barmac VSI crusher correctly requires understanding the economic and application-specific factors. The desired production volumes define the optimal size of the crusher. Rock-on-rock or anvil crushing, on the other hand, results in slightly different end products than normal tertiary and quaternary compression type crushing.
Barmac VSI crushers produce cubical aggregate that performs well in concrete, asphalt and base mixtures. It can also be considered for fine crushing, particularly for abrasive materials, as it is not mechanically restricted in the same way as compression crushers are at fine settings.
If applied correctly, rock-on-rock crushing offers the lowest wear cost per tonne of any impact crushing method. In most cases, Barmac VSI crushers are applied in the last crushing phase of any crushing circuit. It is at this stage of the process where the crushing of the final products is performed, be it the production of superior shaped aggregates, manufactured sand, mill feeds, or liberation or separation of a particular mineral from its host rock.
Different quarries often utilize VSI crushers since they can produce high quality cubical shaped aggregates that meet all major construction specifications. Barmac crushers are particularly successful in producing road-base, top dressing chip, concrete and asphalt aggregates. In these applications, Barmac VSI crushers can be operated either in open or closed circuit, depending on the types of aggregates and the specifications required.
Accurate shaping capabilities and acceptance of fines make Barmac crushers excellent for manufactured sand production. Rock-on-rock crushing ensure low operating costs, and whenever more reduction is needed, or the feed is coarse, the crusher can be equipped with metallic anvils. Barmac crushers speed is adjustable, so they can also produce very fine end products if required.
With features such as controlled product grading, preferential crushing, low production costs and ability to produce finely graded products, Barmac VSI crushers can optimize the performance of most industrial mineral processing installations.
For example, the diamond mines have noticed that utilizing Barmac crushers simplifies the liberation of diamonds from gangue minerals. In addition, fine crushing cement clinker with Barmac crushers is gaining popularity since VSI crushers have proven their ability as cost-effective pre-grinders.
In mining metallic minerals, Barmac VSI crushers with high capacity and ability to produce finely graded products such as mill feed, sinter feed or material for heap leach operations, are ideal machines that can replace high-cost, inefficient crushing and milling equipment.
Barmac VSI crushers can outperform many other equipment in recycling applications. These recycled materials can be waste aggregates or demolition waste, slags, or even glass and other waste products that can be processed and sold.
Barmac crushers are also available as mobile and portable versions, which opens up a new range of business opportunities for contractors, quarry operators, recycling and mining applications. In addition to easier mobility, portable and mobile VSI crushers have advantages such as flexible process adjustability, less material transport required, less manpower needs, and compliance with strict environmental standards.
Get the maximum potential out of your size reduction process to achieve improved crushing performance and lower cost per ton. By using our unique simulation software, our Chamber Optimization experts can design an optimized crushing chamber that matches the exact conditions under which you operate.
Promac Group are distributors for some of the world leaders in the design and manufacture of Screening, Crushing, Hydraulic Breakers, Conveying, Shredding, Mixing and Recycling Equipment for the quarry, mining, landfill and waste management industries, processing aggregate, coal, rubble, container and municipal waste, compost, topsoil and sand.
Our goal is to provide our customers with the best Construction Equipment available in market place with most professional services in the marketplace by providing a comprehensive range of equipment, excellent customer service, and tireless dedication to the customer.
Our strengths lie in the range of quality products we have at our disposal and the ability to tailor a solution that will exceed your expectations for any given requirement.We offer a range of products, at competitive cost, incorporating the very latest technology advances, with excellent sales and service support.
In addition to our comprehensive new equipment portfolio, Promac offers a large inventory of used equipment. Our aim is to provide you with value for money. If you are looking for a machine that is not listed, please contact us, with your specific needs and we will do our best to locate that machine for you.
We are authorized distributors for Sandviks premium line of Mobile Screening and Crushing equipment (formerly Extec Screens and Crushers, and Fintec Screening and Crushing) and also a distributor for Edge Material Handling and Recycling Equipment.
With its bit crushing and downsamplingalgorithms, Krush combines the crispy taste of the digital realm with the warmth of its drive stage and analog modeled resonant filters.A modulation section allows you to quickly add extra life to the sound by modulating any parameter.
Click on the different category headings to find out more. You can also change some of your preferences. Note that blocking some types of cookies may impact your experience on our websites and the services we are able to offer.
We provide you with a list of stored cookies on your computer in our domain so you can check what we stored. Due to security reasons we are not able to show or modify cookies from other domains. You can check these in your browser security settings.
These cookies collect information that is used either in aggregate form to help us understand how our website is being used or how effective our marketing campaigns are, or to help us customize our website and application for you in order to enhance your experience.
We also use different external services like Google Webfonts, Google Maps, and external Video providers. Since these providers may collect personal data like your IP address we allow you to block them here. Please be aware that this might heavily reduce the functionality and appearance of our site. Changes will take effect once you reload the page.
Each order is carefully designed and produced according to the customers specifications and requirements by the experts and is carefully handled by the quality control department before shipping. Thanks to the modular structure, we meet and even exceeded customers requirements in a short space of time.
Our asphalt and concrete plants are equipped with a high-tech automation system, including top-class SIEMENS & SCHNEIDER brands electronic components and PLC. The whole system is controlled through advanced software which has sophisticated features and a user-friendly interface.
Our products are complemented by additional logistics services such as international transport, freight insurance, warehousing as well as customs clearance provided by our company. We, therefore, enable economical transport and assembly. Besides, we speak English, German, Polish, Russian and Turkish.
All our products are a suitable solution for small, middle, big, and temporary term or long-term projects in dedicated areas, and delivered under the guarantee of the production capability of any asphalt and concrete, spare parts, technical service, and also compliance with ISO 9001, TSE, and CE norms.
The dust collection system which is perfectly tailored to the mixing plant capacity includes supporting feet for easy installation and implementation. The vertical layout of the filter bags guarantees maximum utilization of the surface area with an efficient filter function.
They provide the industrys best solution designed to get your asphalt plant running and profitable as quickly as possible and producing the top quality mastic and colored asphalt from the first operation with the least amount of hassle.
They provide the industrys best solution designed to get your concrete batch plant running and profitable as quickly as possible and producing the top quality concrete from the first concrete batch with the least amount of hassle.
Both our stationary cement silos and mobile cement silos with their capacities as well as easy-to-use design provide easy flow and they can be used for several years without wearing off even in the worst weather conditions.
We offer crushers such as jaw crushers, mobile limestone crushers, primary impact crushers, secondary impact crushers and vertical shaft impact crushers, produced according to our customers needs and requirements.
Mobile limestone crushers are a special type of mobile crushers which are generally preferred for crushing relatively softer stones such as limestone. A limestone crusher can be defined also as a crushing machine that is mainly used to process all kinds of limestones.
Vertical shaft impact crushers are also known as sand making machines and are used as tertiary stage crusher to achieve a high ratio of fine materials and give cubic shape to products which pass through secondary crushers.
Belt conveyors are used in concrete batching and stone crushing and screening plants to weigh, feed, transfer and stock the materials. Our belt conveyors are equipped with high-quality and heavy-duty electric motors and gearboxes.
Our aggregate feeding conveyors are classified as stationary and mobile types which can be used in all types of concrete plants. Mobile type aggregate feeding conveyors can be moved by a vehicle just like our mobile concrete plants. Aggregate feeding conveyors are equipped with a remote controller and also a CCTV system which is integrated into the control system of the concrete plant so that the system can be controlled and operated by concrete plant operator easily.
Our vibrating grizzly feeders which are designed and produced to take heavy shock loads from trucks, shovels and loaders provide a continuous feed rate under a variety of loading and material conditions and are generally used in quarries, recycling, mining, sand and gravel operations.
Twin Shaft Mixer is ideal for use in the ready mix precast, block, paver, and dam applications. Depending on the type of application, the mixers can be equipped with several accessories and options to optimize their productivity. The gearboxes of the mixing group are epicyclical types. The mixer tank is lined with Ni-Hard Cast Iron of 530HB minimum hardness. The mixing arms, with a low profile to avoid material build-up, are made in Spheroidal Cast Iron. The mixing blades are made in Ni-Hard Cast Iron with 530HB minimum hardness.
All our truck mixers perfectly designed and equipped to transport the ready-mix concrete in the highest quality to the site have a great contribution to the construction companies in constructing high-quality concrete structures.
Our wet system truck mixers in 6 CBM, 8 CBM, 9 CBM, 10 CBM, and 12 CBM capacities designed for the special requirements of ready-mix concrete and construction companies are the most commonly preferred concrete truck mixers.
The production of our truck mixers is made on an area of a total of 11.000 m2 in which 6.000 m2 open and 5.000 m2 closed parts, in where total 10 pcs are in the production line at the same time. Annually, more than 600 of our Truck Mixers are delivered to various countries in the Middle East, Europe and Latin America.
Besides, we make a difference by offering many companies, especially from the construction sector, the opportunity to purchase products they need in the domestic market in the fastest and safest way without the need to import.Get in Touch with Mechanic