
Granite as a high hardness rock (Mohs hardness 6-7), its sand making process requires high wear resistance, crushing efficiency and particle size control. So how about the effect of granite crushing and sand making with roll crusher? High-precision particle size control and high-quality finished products Uniform and controllable particle size: Through hydraulic or mechanical adjustment of the gap between the two rollers (adjustable from 0-5mm), the particle size of the discharged material can be precisely controlled, and the finished sand is full of grain shape, well-graded, with stable fineness modulus, which can satisfy the requirements of high standard of construction sand (e.g., concrete aggregate above C60). Low over-crushing rate: the principle of extrusion crushing reduces the generation of stone powder (over-crushing rate <5%), which improves the proportion of high-value sand materials, and the rate of sand can reach 99%. Wear resistance and equipment life of roll crusher Strengthened wear-resistant parts:? Roll crusher roll skin adopts 20cm thicker high chrome alloy or tungsten carbide liner, with hardness of HRC62 or above, which has a life span of up to 1-3 years when dealing with granite and reduces the frequency of replacement. Overload protection design:? spring or hydraulic safety device automatically backs…

How To Choose Quartz Stone Sand Making Machine? Due to the high hardness of quartz stone (Moh’s 7) and strong abrasion resistance, the sand making equipment needs to take into account the crushing efficiency, finished product particle size and abrasion resistance. With its unique working principle and performance advantages, the roller sand making machine has become the ideal choice for quartz stone sand making. 1. Particle size control and finished product quality Roller sand making machine will quartz sand can be precisely adjusted particle size, through the hydraulic system to adjust the double roller gap (usually 0.1-5mm). Can accurately control the discharge particle size (such as 1-5mm), the finished sand grain shape is mainly cubic, needle flake content of ≤ 15%, to meet the high standard requirements of construction sand. Roller sand making machine adopts extrusion crushing method (non-impact type) to reduce the over-crushing rate and improve the effective sand output rate, especially suitable for photovoltaic sand which is sensitive to powder content (Fe?O?≤80ppm). 2. Crushing efficiency and energy consumption High efficiency and energy saving Compared with the traditional impact crusher, the roller machine relies on friction crushing.? Energy consumption is reduced by 30%-45%, and the hourly output is 5-400…

How is the sand making effect of roller sand making machine? From the sand making effect, the roll sand making machine has obvious advantages. The size of the sand produced is uniform, and the shape of the particles is regular, which meets the high requirements of modern construction for the quality of sand. Roller sand making machine has a high sand output rate, which can greatly improve the efficiency of ore use. The production process is relatively environmentally friendly, reducing dust pollution and noise pollution. 1. Core advantages of the sand making effect of roller sand making machine Uniformity of particle size and finished product quality Roller sand making machine adopts the principle of extrusion crushing, the discharged material is concentrated in the 1-3mm range.? The particle size distribution is uniform, and it meets the standard of construction sand. The finished sand has low needle flake content, smooth particle surface, no internal cracks, and improved concrete strength. High rate of sand formation: the rate of sand formation in some cases (e.g. processing pebbles) can reach 95%, which is much higher than that of impact sand making machine. Optimisation of particle size After squeezing and grinding medium hardness materials (such as…

Can roll crusher crush steel slag? The answer to this question is yes, the roll crusher with its high efficiency and reliability has become one of the preferred equipment for crushing steel slag. Double-roller crushers are suitable for crushing steel slag, but their applicability depends on slag characteristics and equipment performance. Below is a detailed analysis: 1. Applicability Analysis A. Compatibility with Steel Slag Properties Steel slag typically has high hardness (compressive strength: 150-200 MPa) and brittleness. Double-roller crushers utilize dual-roller shearing and compression forces to effectively break down such materials, especially for medium-to-fine particle size requirements (e.g., ≤10 mm). For instance, tests show that adjusting roller gaps can crush steel slag to 1-3 mm, meeting sintering or grinding process needs. B. Equipment Performance Wear Resistance: Rollers made of high manganese steel or chromium alloys, enhanced with hardfacing technology, withstand abrasion from metallic components in slag. Overload Protection: Hydraulic systems automatically retract rollers to avoid damage from oversized slag blocks. 2. Core Advantages A. Precise Particle Size Control Adjustable roller gaps (1-40 mm) enable flexible output customization (e.g., 3-5 mm for cement raw materials or 1-3 mm for sand-making). Post-adjustment, slag uniformity exceeds 90%, minimizing over-crushing. B. Economic and…

The roll crusher’s excellent performance in platinum stone crushing is based on the premise that the material hardness is moderate (≤150MPa) and the particle size needs to be in the range of medium and fine crushing. Its core advantages are high efficiency and energy saving, controllable particle size and low environmental protection, but need to pay attention to pretreatment and humidity control. Roll crusher, also known as double-roll crusher, stone crushing equipment for medium and fine crushing operations. Its working principle is to squeeze the material through two parallel rotating rollers to achieve crushing. Roll crusher crushing platinum stone advantages: High efficiency crushing and wear resistance The principle of double roll extrusion crushing reduces ineffective energy consumption and has high crushing efficiency. The roll surface is made of high manganese steel or hard alloy, which is wear-resistant and suitable for handling highly abrasive platinum stones. The hydraulic system provides overload protection and automatically backs off in case of foreign objects with excessive hardness, reducing the risk of equipment damage. Environmentally friendly and cost effective Extrusion crushing method has less dust and low noise (compared to impact equipment).? Which is in line with green mining standards. Simple structure, low maintenance cost,…

Double Tooth Roller Crusher is a kind of mining machinery that crushes materials by squeezing and shearing the materials through two rollers with teeth rotating in the opposite direction, which belongs to a subdivision type of Roll Crusher. Double Toothed Roll Crusher is composed of two horizontally arranged rolls with toothed teeth, the rolls have: coarse teeth, fine teeth, wolf teeth, the rotating rolls produce squeezing force and shear force to crush the materials. The main components include transmission device (motor, reducer, hydraulic coupling), crushing roller, hydraulic/spring adjustment system, overload protection device. After entering the gap between the two rolls, the material is crushed by the splitting and shearing force of the rolls, and the size of the finished product is controlled by adjusting the roll spacing (accuracy ±1mm). With the advantages of high efficiency, low consumption and controllable particle size, double roll crusher has become the core equipment in the field of medium and fine crushing, which is especially suitable for the processing of complex materials such as coal and construction solid waste. When selecting the model, you need to combine the material characteristics (hardness, moisture content) and capacity requirements, and give priority to the models equipped with hydraulic…

It is ideal to choose double roll rock crusher for sand making in mining quarry, and its applicability and advantages are as follows: I. Core Advantages High-efficiency crushing mechanism The crushing force and shearing force generated by the relative rotation of the double rolls can handle medium-hard materials with compressive strength ≤250MPa, such as granite and basalt, with feed size ≤80mm, and finished product size adjustable to 2-20mm. Energy saving and environmental protection Energy consumption is 30% lower than the traditional jaw crusher, and the hydraulic system automatically adjusts the roll spacing to reduce ineffective energy consumption. Equipped with dust removal device, the dust emission meets the environmental protection standard. High production capacity The output range is 5-300 tonnes per hour, and the 280 tonnes per hour model can precisely control the granularity of the material through the hydraulic system, which can meet the demand of continuous production of large-scale sand plants. II.the sand plant suitable for the characteristics Particle shape control: Extruded and crushed finished sand has regular grain shape and reasonable grading, and the fineness modulus of sand is adjustable. Multi-material adaptation:? Supporting more than 200 kinds of materials, such as river pebbles, limestone and other wet and…

Double roller crusher has become the ideal choice for gypsum sand crushing with its advantages of intelligent adjustment, precise grain control, energy saving and durability. Its technical features not only meet the demand for high-quality finished products, but also bring significant economic benefits to enterprises through low maintenance costs and environmentally friendly design. For specific applications, it is recommended to choose the appropriate model according to the hardness and humidity of gypsum sand and the production scale, and to regularly maintain the rollers and other key components to prolong the life of the equipment. The double roll crusher used for gypsum sand manufacturing shows the following core advantages in crushing gypsum sand, which are analysed as follows, taking into account its technical characteristics and actual application scenarios: Precise particle size control and uniform discharge Flexible adjustment of particle size The hydraulic system can precisely adjust the roll spacing, combined with the customised design of the internal structure (e.g. anti-sticking scraper), to ensure the uniformity of the discharged material size and meet the specific requirements of gypsum sand (e.g. the standard for construction sand). High consistency of finished product quality The extrusion crushing method reduces over-crushing phenomenon, and the finished sand…

The roll skin of the roll crusher of Huashengming is outstanding in wear resistance, and its design and material selection are all centred on prolonging the service life, with the following specific advantages: 1. High-strength wear-resistant materials The roll skin is made of high chromium alloy, multi-alloy wear-resistant ductile iron and other special materials, and the hardness of the surface layer can reach HRC50-55, and the wear resistance is enhanced by quenching process. For example, high chromium composite roller skin outer layer of high chromium alloy, the inner layer of ductile cast iron, designed for fine crushing, wear resistance significantly better than ordinary materials. Some roller skins are also made of high-chromium manganese steel with patented technology. By optimising the alloy composition (e.g. increasing the content of C and Mn, and adding elements such as Ti, V and Mo), it further enhances the hardness and impact-resistant ability, and prolongs the service life to 2-3 years, which is far more than the average level of the industry. 2. Structure design and process optimisation The thickness of the roll skin is designed scientifically, for example, the initial thickness is 110mm, and the roll skin will be scrapped only when it is worn…

Basalt as a kind of high hardness volcanic rock, basalt roll crusher becomes the ideal choice for basalt crushing by virtue of its high efficiency, wear-resistant, energy-saving and flexible features. Basalt roll crusher, with its unique design and performance, has many advantages in basalt crushing treatment. 1.Basalt roll crusher has simple structure Roll crusher has two relatively rotating rolls and is equipped with double motor drive system. Through the extrusion and shearing effect of two high-strength wear-resistant rollers, it can quickly crush the high hardness basalt into uniform particles. In the process of basalt processing, the roll crusher can effectively crush the large rocks into the required particle size, while maintaining the uniformity of the discharge size. 2. Abrasion resistance and durability Basalt is highly abrasive and requires strict wear resistance of the equipment. The rollers of the roller crusher are made of high manganese chromium alloy and other wear-resistant materials, which can effectively resist abrasion and prolong the service life. Some models (e.g. no wearing parts design) do not even need to replace parts within one year, significantly reducing maintenance costs. 3. Energy saving and environmental protection Basalt Roll Crusher is designed to improve productivity and reduce energy…

As an efficient and multi-functional crushing equipment, the roller crusher has significant advantages in the fields of mining, building materials, metallurgy, etc., and the roller crusher has become the preferred equipment in the field of modern crushing with its advantages of high efficiency, accuracy, durability and environmental protection. The roller crusher can process a wide range of raw materials, including coal, iron ore, construction waste, steel slag, etc., without the need for pre-screening (e.g., raw coal can be directly crushed), simplifying the process. Compared with other crushing equipment, the roller crusher has low initial investment, less energy consumption and maintenance costs in long-term operation, and significant comprehensive economic benefits. Its technical advantages are not only reflected in production efficiency and cost control, but also meet the current industrial demand for green manufacturing and sustainable development, and are suitable for refined production scenarios in mining, building materials, metallurgy and other industries. 1. High efficiency, energy saving and high production capacity The roller crusher adopts the principle of double-roll extrusion, which quickly crushes materials through high-intensity pressure, especially suitable for medium-hard and brittle materials (such as coal, ore, steel slag, etc.), and its crushing efficiency is 30%-40% higher than that of traditional…

Dolomite crushing and sand-making can utilize the double roll crusher, a highly efficient crushing equipment widely applied in mining, construction, and chemical industries for material processing. The dolomite double-roll crusher adopts a dual-roller design, where two counter-rotating rollers compress and crush materials. It boasts advantages such as simple structure, user-friendly operation, and high crushing efficiency. In dolomite sand production, the double-roll crusher demonstrates outstanding overall performance, particularly excelling in efficiency, finished product quality, and durability. The effectiveness of using a double-roll crusher for dolomite sand production is exceptional, especially in handling high-hardness materials, ensuring superior product quality, equipment stability, and environmental performance. Below is a detailed analysis: 1. High-Efficiency Crushing & Increased Output The double-roll crusher employs counter-rotating rollers to directly crush materials through high-pressure extrusion. With fast roller speeds and strong compressive forces, it achieves high crushing efficiency, making it ideal for hard minerals like dolomite. For instance, Huashengming Heavy Industry’s optimized feed chamber design (e.g., deep cavity with no dead zones) increases output by over threefold compared to traditional equipment, while reducing material blockages and enhancing continuous production. 2. Superior Finished Product Quality Crushed dolomite sand exhibits uniform particle size and excellent shape (e.g., near-cubic). Adjustments to roller…


