Why Recommend Hydraulic Roll Crusher？
2025-07-30Why Recommend Hydraulic Roll Crusher？ Hydraulic roll crusher is a kind of high efficient and precise crushing equipment, its core working principle is based on the synergistic effect of double roll extrusion crushing mechanism and hydraulic intelligent control system. Compared with the traditional spring roller crusher, it has the following advantages: 1. The core crushing principle of Hydraulic Roll Crusher: double roll extrusion. Material Crushing Process Feed and roll: the material falls into the two parallel rolls through the feed opening. And is rolled into the roll gap under the friction and gravity of the roll surface.Extrusion and crushing: the two rollers rotate in opposite directions (the speed is usually 10-20 rpm). The material is subjected to multiple forces such as extrusion, shearing, rubbing, etc., and the material is crushed into the target size when the external force exceeds the material lattice polymerisation force.>Discharge control: The crushed material is discharged through the roll gap (the size range is usually 0-15mm) and discharged downwards to the conveying equipment. Source of crushing force The roll surface of Huashengming Hydraulic Roll Crusher is covered with high wear-resistant material (high manganese steel or chromium-molybdenum alloy, hardness ≥ HRC60).>The roll gap is adjustable in a…
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Roller Crusher: Crusher With Low Crushing Cost
2025-07-26The maintenance cost of hydraulic roller crusher is significantly lower than traditional crushing equipment (such as spring rollers or hammer crusher). And its advantages are mainly reflected in the structural design. Wear resistance, degree of automation and energy consumption control. The following is an analysis from the perspective of core maintenance cost components and long-term benefits: 1. Equipment structure and durability: reduce the frequency of spare parts replacement No wearing parts design Long roller skin life: made of high manganese steel or chromium-molybdenum alloy (hardness ≥ HRC60), the roller skin is thickened to 20cm, and its service life can reach 3-5 years under normal working conditions, while the traditional spring-loaded rollers need to be replaced once every 1-2 years. Lifelong free replacement of parts: the hydraulic system has fewer transmission parts, and the key bearings and seals are made of wear-resistant materials, which reduces the overall failure rate by more than 40%. Hydraulic system stability The overload protection function can automatically avoid metal foreign objects, avoiding sudden damage to the equipment and reducing the frequency of maintenance. Hydraulic cylinder closed design, with regular oil maintenance, system life is extended by 30%. 2. Maintenance frequency and operating costs Simplified daily maintenance…
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Hydraulic Double-Roll Crushers Advantages
2025-07-25The working principle of the hydraulic double roll crusher is based on the double-roll compression crushing mechanism, combined with the intelligent control of the hydraulic system, to achieve efficient and precise material crushing. 1. Core crushing principle of the hydraulic double-roll crusher: double-roll compression and multi-force synergy Material crushing process Feeding and feeding: Material enters the crushing chamber through a feeding device (vibrating feeder or belt conveyor) and falls onto the two parallel cylindrical rolls. Squeezing and Crushing: The rollers rotate in opposite directions. Under the combined effects of friction force on the roller surface and the material’s own gravity. The material is drawn into the roller gap, subjected to multiple forces such as squeezing, shearing, and kneading. When the external force exceeds the material’s crystal lattice cohesive force. The material is crushed to the target particle size. Discharge Control: The crushed material is discharged through the roller gap, falls downward into the discharge device, and proceeds to the next processing stage. Source of Crushing Force The roller surfaces are typically covered with high-manganese steel or chromium-molybdenum alloy roller liners. Which offer excellent wear resistance and require no replacement throughout their service life (traditional equipment requires annual replacement). The roller…
How To Choose The Model Of Roll Crusher With A Capacity Of 100 Tonnes Per Hour
2025-07-23According to the demand of 100 tonnes per hour sand production, combined with the material characteristics, cost budget and equipment performance, the following is the roll crusher model recommendation and selection guide for different scenarios: 1. Recommended models according to material characteristics Medium-hard materials (limestone, gangue, etc.) Recommended model: 2PG1200×1200 roll crusher Production capacity: 60-100 tonnes/hour (can meet the demand of 100 tonnes) Feed size: ≤50mm, discharge size: 3-35mm (adjustable) Motor power: 2×90kW, low energy consumption (about 0.9 degree/tonne) Advantage: compact structure, low maintenance cost, suitable for medium-sized sand plants with limited budget. Hard materials (granite, basalt, river pebbles) Recommended model: 2PGY1200×1000 roll crusher (hydraulic type) Production capacity: 90-100 tonnes/hour Feeding size: ≤55mm, discharging size: 1-5mm (hydraulically adjusted) Motor power: 2×75kW Advantage: Hydraulic system automatically adjusts the pressure to adapt to the change of material hardness; The roll surface adopts high-strength wear-resistant alloy, which extends the service life by 30%; Less dust and noise ≤80dB, which meets the requirement of environmental protection. High humidity/sticky materials (construction waste, steel slag) Recommended model: 2PGY1000×1000 type roll crusher Production capacity: 80-100 tonnes/hour Feeding size: ≤180mm (large pieces of material are crushed directly) Advantages: No screen bottom design: completely solve the problem of wet…
Choose Roller Sand Making Machine For Pebble Sand Making
2025-07-20Choose Roller Sand Making Machine For Pebble Sand Making Pebble sand making can completely choose the roller sand making machine, and its technical suitability and economy are outstanding in specific scenarios. The following is a detailed analysis of the comprehensive industry practice and equipment characteristics: 1. The core advantages of roller sand making machine in processing pebbles Precise and controllable particle size By adjusting the roll gap (0.5-5mm) through the hydraulic system, the discharged particle size can be stably controlled within the range of 1-5mm, which meets the Class I standard (fineness modulus 2.6-3.0) for construction sand. Extrusion crushing principle reduces over-crushing, stone powder content ≤10%, finished sand grain type is mainly cubic, improving concrete strength. Wear resistance and low maintenance cost Roller skins are made of high chromium manganese steel or tungsten carbide alloy, with a life span of 6-12 months (only 3-6 months for ordinary equipment), and the replacement frequency is reduced by 50%. No wearing parts design (only the roller skin needs to be replaced regularly), the maintenance cost is 30% lower than the impact sand making machine. Energy saving and economy The energy consumption is 30%-40% lower than that of the impact breaker, and the annual…
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How To Choose Pebble Crushing Sand Making Equipment?
2025-07-20As a high hardness (Moh’s hardness 7-8) and wear-resistant material, pebbles have very high requirements on wear resistance, energy consumption and particle size control of crushing equipment. For pebble sand crushing, you can choose roll crusher, roll crusher has significant advantages in the field of pebble sand making by virtue of its extrusion crushing principle and structural characteristics. 1. Core advantages of roll crusher High efficient crushing and energy saving Extruded crushing: 50-200 MPa high-pressure squeezing force is generated by the relative rotation of double rolls, which makes the pebbles cracked and crushed, and reduces energy consumption by more than 30% compared with the impact crusher. Low rotational speed design: reduce mechanical wear and prolong equipment life, especially suitable for continuous operation of high hardness pebbles. Precise particle size control Hydraulic adjustment system: Dynamically adjust the gap between the two rolls (0.5-50 mm). The discharge size can be controlled in the range of 2-20 mm to meet the grading requirements of construction sand. >Low over-crushing rate: Extrusion crushing reduces the needles and flakes particles, and the finished sand is closer to the cubic shape, which improves the strength of concrete. Wear resistance and maintenance cost of pebble sand making equipment Alloy…
Roller Crusher Application In Mineral Processing Industry
2025-07-14Roll crusher with its unique crushing principle . It has become the core equipment for medium and fine crushing in mineral processing industry. Flexible particle size control and low over-crushing rate. Roller crusher has high precision of crushing size control. The roller gap is adjusted by hydraulic or wedge device (1-50mm adjustable), the discharge size is uniform (e.g. 1-5mm sand). And the over-crushing rate is lower than that of the impact crusher. Roll crusher squeeze crushing reduces the subsequent grinding energy consumption by 15-30%, and the processing capacity is up to 1-400t/h (large fully hydraulic model supports 10,000 tonnes per day production). The following are its specific applications and technical characteristics in the field of mineral processing: Metal Ore Processing Rough crushing followed by medium crushing: located after the jaw crusher, it crushes the ore to the size range of 1-10mm, preparing for subsequent grinding or sorting. Tungsten and Tin Ore Beneficiation: In the combined process of ‘Roller Crusher + Jigger + Shaker’, the Roller Crusher controls the size of the discharged material (10-30mm), reduces over-crushing, and improves the efficiency of gravity sorting. Iron ore/non-ferrous metals: It is suitable for medium and fine crushing of copper, lead, zinc and other…
Roll Crusher Crushing Basalt Effect
2025-07-09Roll crusher has excellent performance in crushing basalt, especially in particle size control, wear resistance and energy efficiency, but also need to be based on the characteristics of basalt (such as hardness, abrasive) reasonable selection and configuration. Crushing efficiency and capacity advantages High-efficiency crushing mechanism: Roll crusher crushes basalt rock by double-roll high-pressure extrusion (pressure up to 150-200MPa) and shear force, with high energy utilisation and crushing ratio up to 5-8. Compared with impact crusher, its low rotational speed and high pressure working mode reduces the energy consumption by 30-40%, and the power consumption per unit is only 0.8-8%. The unit power consumption is only 0.8-1.2kWh/t. High capacity adaptability: The production capacity is stable at 50-200 tonnes/hour (e.g. 2PGY1000×800 model) when processing basalt, and the capacity of large-sized equipment (e.g. 2PGY1500×1000) can reach 300 tonnes/hour, which can satisfy the demand of large-scale production. Finished product quality advantages Accurate control of particle size: Hydraulic system dynamically adjusts the roller gap (0.5-5mm adjustable), the error is ≤ 0.1mm, the uniformity of the finished product particle size of more than 95%, the rate of over-crushing <5%. Basalt particles after crushing are mostly cubic, with low needle flake content (<10%), in line with GB/T…
Why Roller Sand Making Machine Is Very Effective For Granite Sand Making?
2025-07-07Why Roller Sand Making Machine Is Very Effective For Granite Sand Making? Granite, as a high-hardness rock, places extremely high demands on equipment wear resistance, crushing efficiency, and particle size control during sand production. When processing high-hardness granite, the double-roller sand making machine ensures highly uniform particle size in the finished sand through four key technologies: precision gap control, wear-resistant roller surface design, intelligent closed-loop regulation, and homogeneous feeding. Roller Sand Making Machine Precision Gap Control System (Core Safeguard) 1. Hydraulic Dynamic Adjustment Hydraulic cylinders dynamically adjust the gap between the two rollers (adjustable range: 0.5–5 mm) in real time, precisely controlling crushing pressure and output particle size. For example, when processing 1 cm granite, setting the gap to 1 mm directly produces 1 mm fine sand. The hydraulic system responds at millisecond-level speeds, automatically compensating for gap deviations caused by variations in material hardness to prevent particle size fluctuations. 2. Wedge/Shim Mechanical Adjustment Backup mechanical adjustment devices (e.g., wedges or shims) serve as auxiliary measures. They manually lock the target particle size during hydraulic failures, ensuring uninterrupted production continuity. Optimized Roller Surface Design and Wear Resistance Enhancement Ultra-High Wear-Resistant Materials for Extended Stability Roller skins are constructed with high-chromium alloy…
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How About The Effect Quartz Stone Roller Sand Making Machine？
2025-07-04How About The Effect Of Quartz Stone Roller Sand Making Machine？ Roller sand making machine does have many advantages in quartz stone sand making. Quartz stone is a kind of material with high hardness (Mohs hardness class 7). Traditional impact crusher is difficult to accurately control the range of discharged particle size. While roll sand making machine can accurately control the discharged particle size by adjusting the roller spacing and pressure. This is very important for the production of high quality quartz sand. Why choose Huashengming Heavy Industry for quartz stone sand making machine? Quartz sand production using roll sand making machine produced by Huashengming has a very good effect. Roller sand making machine through the two opposing rotating rollers on the material for extrusion, friction and shear. To ensure uniformity of the size of the output material. Quartz stone sand making machine has those advantages Roller sand making machine also performs well in terms of crushing efficiency. It mainly relies on friction rather than impact force for crushing, with low energy consumption. Which can save up to 30% or more compared with traditional equipment. At the same time, the equipment is made of high-strength wear-resistant materials. Which can withstand…
Maintenance cost of roll sand making machine
2025-06-12Maintenance cost of roll sand making machine? The maintenance cost of roller sand making machine mainly includes the following aspects: 1. Wear parts replacement cost (core expenditure) roll sand making machine Roller skin wear The highest proportion: the roller skin is in direct contact with the material, which is the main wear parts. High chrome alloy roller skin life of about 1000-3000 hours, high-quality materials (such as high chrome cast iron) can be extended to 3 years. Replacement cost: a single pair of roller skins cost 0.8-320,000 yuan (depending on the size and material), the average annual replacement of 1-3 times. Bearings and Seals Bearings need to be lubricated on a regular basis, with grease added every 400 hours of operation, cleaned for 2,000 hours, and replaced for 7,200 hours. The aging of seals will lead to dust intrusion and accelerate the wear of bearings, and the annual maintenance cost is about RMB 2,000. 2.Hydraulic system maintenance Hydraulic system needs regular oil change (1-2 times per year) and filter element replacement to prevent oil circuit blockage. Hydraulic cylinders, pressure valves and other components debugging and calibration. Encountered hard objects stuck will automatically return to protect the equipment, frequent triggering will…
Roller Crusher Sand Yield In-Depth Analysis
2025-05-22The yield of roller crusher in sand production is generally in the range of 85%-98%, which is significantly higher than that of vertical shaft impact crusher (60%-85%). The core mechanism of its high yield lies in: 1. Squeezing crushing principle: the laminar crushing force generated by the double rollers rotating in opposite directions makes the material uniformly subjected to force in the closed chamber. And the over-crushing rate is lower than that of the impact crusher by more than 50%. 2. Intelligent gap adjustment: Hydraulic/spring system can achieve 0.1mm precision control of roll pitch. Which ensures that the qualified rate of material size is increased to 98%. 3. Material adaptability: for medium-hard materials (compressive strength ≤ 160MPa) such as river pebbles. Limestone, etc., the yield can be stable at more than 90%; construction waste recycling field measured up to 95%. Three major factors affecting the yield rate Characteristics of raw materials Hardness threshold: when the material Moh’s hardness>7 (such as granite), the yield will drop 8-12%. High chrome manganese steel rollers (3 times longer service life) Moisture content control: raw material humidity>5%, sticky roller phenomenon leads to a sudden drop of 15% yield. Use a pre-drying or water-mist dusting system….
