Hydraulic Double Roller Crusher Hydraulic Double Roller Crusher Spring Roll Crusher
Granite roller sand making machine PXJ High Efficiency Fine Crusher VSI Vertical Shaft Impact Crusher
Raymond Mill YGM High Pressure Grinding Mill TGM Super Pressure Trapezium Mill
Trommel Screen Trommel Screen Machine Circular Vibrating Screen
In the selection of sand making equipment, it is necessary to take into account the initial investment, operating costs (energy consumption, maintenance), applicable materials and production capacity and other factors. Comprehensive comparison of various types of equipment, the following two types of sand making machine in the cost control of outstanding performance, especially suitable for small and medium-sized sand production line with limited budget: 1. Hydraulic roller sand making machine: the balanced choice with the lowest comprehensive cost. Hydraulic roll sand making machine realises efficient sand making through the principle of extrusion crushing, and its cost advantage is reflected in: Low initial investment Streamlined equipment: a single machine can complete the crushing and shaping process, without the need for multiple equipment, saving procurement costs (about 100,000-200,000 yuan for small models such as 2PGY750×500). Simplified infrastructure: compact structure, small footprint, reducing plant construction investment. Low energy consumption and maintenance cost Significant energy saving: Extrusion crushing saves 20%-30% electricity compared with impact crushing, and the unit electricity consumption is only 0.8-1.2 kWh/ton. Wear-resistant and durable: the roller skin is made of chrome-molybdenum alloy (life expectancy of 3-5 years), the hydraulic system has good sealing and low failure rate, and the annual maintenance…
The hydraulic system of the hydraulic roll crusher is its core control unit. Which realises efficient and precise material crushing through hydraulic power transmission and intelligent control. Through the mechanism of ‘Intelligent Pressure Control + Dynamic Feedback’, the hydraulic system gives the roller crusher high precision. Strong toughness and energy saving advantages, and becomes the core technology of the roller crusher. 1. Hydraulic Roll Crusher Hydraulic System Hydraulic Pump Station Power source: the electric motor drives the hydraulic pump (such as gear pump or piston pump). Which converts mechanical energy into hydraulic energy and outputs high-pressure oil (the working pressure is usually 10-20MPa). Pressure control: the system pressure is regulated by electromagnetic relief valve to avoid overpressure damage to the equipment, and specific pressure is allocated for different circuits (such as roll gap adjustment, overload protection) by pressure reducing valve. Hydraulic actuators Hydraulic cylinder: controls the displacement of the movable rollers to achieve precise adjustment of the roll gap (accuracy ±0.1mm). The expansion and contraction of the piston rod is controlled by a three-position four-way electromagnetic directional valve. And a one-way throttle valve regulates the speed of movement. Hydraulic motor: drive roller rotation (adopted in some models), providing high torque…
With its high efficiency, flexibility and durability, roll crusher is widely used in many industries. The following are the specific application scenarios and advantages analysed in each industry: 1. Mining and metallurgy industry Hard rock crushing Application Scenario: Crushing granite, basalt (compressive strength ≥200MPa), iron ore and other high hardness minerals. Advantage: The hydraulic system automatically adjusts the roll spacing to adapt to the change of material hardness; the roll surface is made of chrome-molybdenum alloy, which is highly wear-resistant and extends the service life by 2-3 times. Case: Huashengming 1510 processing basalt, hourly output of 150-200 tonnes, the finished product size is uniform (1-5mm adjustable). Soft mineral processing Application Scenario: Fine crushing of coal, coal gangue, shale and other low and medium hardness minerals. Advantage: flexible crushing to avoid over-crushing, precise particle size (0-15mm adjustable), suitable for the preparation of concrete aggregate or metallurgical raw materials. 2. Construction and building materials industry Construction waste recycling Application Scenario: Crushing concrete blocks, bricks and tiles and other construction waste, converting them into recycled aggregates. Advantages: no screen bottom design to prevent clogging, wet material does not stick to the rollers (humidity ≤ 35%); discharge particle size ≤ 3mm, resource utilisation rate…
The durability of the roller crusher is one of its core advantages, especially when dealing with high hardness and abrasive materials (such as volcanic rocks). The following is a comprehensive analysis of its durability from the perspectives of material, design, maintenance and practical application: 1. Material and structure: wear resistance as the core guarantee High wear-resistant roller skin design The roller skin is made of high chromium alloy, manganese steel or special wear-resistant composite materials (such as manganese steel thickened by 20cm), and the hardness can reach HRC60 or above. Which can effectively resist the high silica content and abrasive nature of the volcanic rock.>The life span of the roller skin of some models (such as Huashengming 1510) can reach 1-3 years (about 1 year for ordinary equipment), which significantly reduces the frequency of replacement. Overall structure optimisation The roll crusher frame is made of high-strength alloy steel with strong impact resistance. The closed structure reduces dust intrusion and avoids premature wear of key components (such as bearings). The modular design supports quick replacement of wearing parts, increasing maintenance efficiency by more than 50%. 2. Protection and Intelligent System: Extending Service Life Overload protection mechanism Hydraulic or spring overload system…
Toothed roll crusher (especially double-toothed roll crusher) in the field of coal crushing performance is excellent, the comprehensive effect is remarkable, the following is its core advantages and practical application of the analysis of the effect: 1. Crushing efficiency and particle size control High-efficiency Crushing and Uniform Discharge: The double-toothed roll crusher applies extrusion, shearing and splitting force to coal through two relatively rotating rolls. With a crushing ratio of up to 5-8, and is able to crush large pieces of raw coal (e.g., 300-600mm) to the target size (e.g., 10-50mm) in one go. The roller spacing can be adjusted hydraulically or mechanically (accuracy ±0.1mm), which achieves the error of discharged particle size ≤3%,. Effectively reduces the phenomenon of over-crushing, and ensures the uniformity of finished coal size. Dual function of screening and crushing: Toothed roll structure also plays the role of screening, and materials meeting the requirements of particle size can be directly leaked from the roll gap. Avoiding repeated crushing and further reducing the rate of over-crushing (reducing the amount of coal sludge produced by 40%). 2. Energy consumption and cost-effectiveness Significant energy saving: Cleaving and crushing principle has the lowest energy consumption. The unit energy consumption is…
Roll crusher in the field of material crushing by virtue of its unique design and working principle, showing a variety of technical Roll crusher advantages. With the core of ‘high-pressure extrusion crushing’, the Roll Crusher has become the preferred equipment in the field of medium and fine crushing through the five advantages of high efficiency and energy saving, precise and controllable particle size, strong adaptability, low maintenance cost and green production. In the fields of sand and gravel aggregate, metal beneficiation, coal pre-processing and resource regeneration, its comprehensive performance is significantly better than traditional crushing solutions. Hydraulic intelligence and wear-resistant material upgrading (such as zirconia composite roll surface), its application boundary will be further expanded. The following is a systematic overview of the core advantages of the crusher in combination with the industry applications and technical characteristics: 1. High energy efficiency and processing capacity High Crushing Efficiency Adopting the extrusion crushing method of double rolls rotating in opposite directions, the materials are instantly crushed under high pressure of 50-200MPa. This direct pressure crushing consumes less energy compared with impact crushing, saving more than 45% of energy consumption under the same capacity, especially suitable for large-scale continuous production scenarios (e.g., mines,…
The effect of roller crusher in crushing basalt depends on the type of equipment, technical configuration and process. As a high hardness rock, basalt has very high requirements on wear resistance and crushing force of the equipment. 1.Assessment of applicability and effect of roll crusher for basalt crushing Limitations of common roll crusher Traditional models (e.g. 1010) are designed mainly for medium hardness materials (e.g. limestone, coal gangue), and direct crushing of basalt will lead to rapid wear of roll skins, a surge in maintenance costs, and low crushing efficiency. Impact or hammer crushers may be more suitable for primary basalt crushing. Advantages of dedicated hydraulic roll crushers Fully hydraulic roll crushers optimised for basalt perform significantly better: Efficient crushing: The double roll high pressure squeezing technology (up to 250MPa) penetrates the basalt structure, increasing crushing efficiency by 30% and reducing energy consumption by 40%. Precise grain control: hydraulic system adjusts the roll spacing (precision 0.1mm), uniform particle size (3-30mm or 0-5mm), low needles and flakes content, and gradation in line with the standard of construction aggregates. Wear-resistant and durable: high chrome alloy roller sleeve life of more than 3 years, overload protection system to avoid equipment damage. Environmental…
Roll crusher is mainly classified according to the number of rolls, roll surface structure and rotational speed, the following are its specific types and characteristics: I. Classification by Number of Rollers Single-Roll Crusher Structure: Composed of one crushing roller and a fixed liner plate. Material is crushed by compression between the roller and the plate. Application: Coarse or medium crushing of medium-hard materials (e.g., limestone, slag). Double-Roll Crusher Structure: Two horizontal rollers rotate toward each other, crushing material via compression or shearing. Includes smooth-roll and toothed-roll types. Smooth-Roll: Smooth or grooved surface, relying on compression and grinding. Suitable for medium-fine crushing (e.g., clay, coal). Toothed-Roll: Serrated surface, crushing via splitting and tearing. Ideal for brittle materials like coal and coke. Advantages: Simple structure, low over-crushing rate, uniform particle size. Four-Roll Crusher Structure: Combines two pairs of rollers—front pair for coarse crushing, rear pair for fine crushing—equivalent to two double-roll crushers. Features: Two-stage crushing for finer output (e.g., coal/coke fine crushing). II. Classification by Roller Surface Structure Smooth-Roll Crusher Smooth surface crushes via compression/grinding. Suitable for medium-hard materials (e.g., cement clinker, limestone). Toothed-Roll Crusher Serrated surface enhances shearing force. Includes: Double-Toothed Roll: Mechanical spring type (2PCM), adaptable for coarse/medium teeth based…
The price of roll crushers varies widely, mainly affected by processing capacity, equipment type, configuration and application scenarios. Below is an analysis of the range of quotes and key factors from a combination of multiple sources: 1. Price Overview (by Processing Capacity) Processing Capacity Price Range (RMB) Application Scenarios Typical Configuration Small Equipment (5-20 t/h) 10,000–200,000 RMB Lab projects, small-scale production (e.g., construction waste) Basic roller surface, manual adjustment Medium Equipment (20-100 t/h) 200,000–600,000 RMB Medium-sized quarries, recycled aggregate production High-manganese steel rollers, hydraulic/semi-automatic system Large Equipment (100–400 t/h) 500,000–1,200,000 RMB Large mines, industrial-scale production lines Fully automated control, wear-resistant ceramic rollers, mobile design Note: Mobile models cost 30%–50% more than fixed types due to integrated design. 2. Price Variations by Application Construction Waste Processing (concrete, bricks) Price: 100,000–500,000 RMB Key Features: Wear resistance (high-manganese steel rollers increase cost by 10%–30%), dust removal systems. Underground Coal Mining Price: 100,000–600,000 RMB Premium Factors: Explosion-proof design, compact structure, intelligent control systems. Ore Crushing (iron ore, manganese ore) Price: 300,000–1,200,000 RMB Critical Configurations: High-strength rollers, customizable discharge particle size adjustment. 3. Key Factors Affecting Price Technical Configuration Basic functions (hydraulic adjustment, spring protection): 15%–25% of total cost. Smart systems (automation, remote monitoring): 20%–40%…
With the improvement of construction sand standard and the increasing shortage of natural sand resources, mechanism sand has become the main source of aggregate for modern engineering construction. Among many sand making equipment, roll crusher stands out with its unique structural design and high efficient crushing performance, especially in the sand particle shape control, grading optimisation and environmental protection and energy saving. This article will comprehensively analyse the core value of roll crusher from three aspects: technical principle, sand making effect and practical application cases. I. Principle of sand making technology of roll crusher The roller crusher consists of two rollers installed parallel to each other. And the surface of the rollers can be designed as toothed, grooved or glossy according to the demand. Its core working principle is the combination of ‘laminar crushing’ and ‘selective crushing’: 1. Squeeze Crushing: After the material enters the gap between two rollers, it will be squeezed and crushed through the relative rotation of the rollers, and the crushing force can be precisely controlled by adjusting the roller distance; 2. Shear grinding: the texture of the roller surface produces shear effect on the material, reducing the phenomenon of over-crushing; 3. Self-cleaning design: non-crushed materials…
Maintenance cost calculation of roller crusher needs to consider the characteristics of the equipment, the use of the environment, maintenance strategy and other multiple factors, the specific method is as follows: Maintenance Cost Calculation for Double-Roller Crushers The maintenance cost of double-roller crushers involves direct expenses, indirect losses, and optimization strategies. Below is a structured breakdown with technical evidence: 1. Core Components of Maintenance Costs Direct Costs Spare Parts Replacement: Wear-prone components like roller skins and bearings account for 30%–50% of total costs. High-manganese steel roller skins typically require replacement every 6–12 months. Labor Costs: Skilled technicians are essential for complex repairs, contributing 20%–30% of expenses. Consumables: Lubricants and cleaning agents add 5%–10% annually. Indirect Costs Downtime Losses: Production halts due to failures can cost thousands per hour. Energy Inefficiency: Poor maintenance increases power consumption by 0.2–0.5 kW·h/ton. 2. Key Influencing Factors Equipment Design & Materials High-wear-resistant roller skins (e.g., tungsten carbide-coated) reduce costs by 20%–30%. Hydraulic overload protection systems minimize structural damage from unbreakable materials. Operating Conditions Hard or abrasive materials (e.g., steel slag) accelerate roller wear by 50%, necessitating frequent replacements. Dusty environments shorten bearing life by 30%, requiring enhanced sealing and lubrication. Maintenance Strategy Proactive measures like…
Roller Crusher Roller Maintenance Needs Attention. Maintenance of smooth rolls and toothed rolls in roll crusher requires targeted management based on equipment characteristics, material properties, and operational protocols. Below are critical maintenance considerations and operational recommendations: I. Core Daily Maintenance Guidelines Lubrication Management Smooth Rolls: Lubricate bearings weekly with specialized grease. Apply calcium-based grease to chains every 15 days and perform thorough chain cleaning monthly. Toothed Rolls: Lubricate bearings monthly and replace grease annually. Oil chains weekly and clean them monthly. General Requirements: Ensure lubrication systems remain clean to prevent contamination. Maintain sliding bearing clearance at 0.0001D–0.00015D (where D = journal diameter). Wear Inspection and Adjustment Smooth Rolls: Clean residual material from roll surfaces after each shift and inspect surface smoothness to avoid pitting or scratches. Adjust roller gaps every two weeks to ensure parallelism. Toothed Rolls: Inspect tooth plate wear every 1–3 months; replace plates if tooth height loss exceeds 30% or fractures occur. Adjust discharge openings periodically to prevent overly fine output. Cleaning and Clog Prevention Regularly remove adhered material to avoid crushing chamber blockages (especially when processing clay or construction waste). Stop feeding 2–3 minutes before shutdown to ensure complete material discharge. II. Key Component Maintenance Strategies…
