Sand Aggregate IndustryComprehensive Service ProviderSand Aggregate IndustryComprehensive Service Provider
In the crushing industry, choosing the right crusher is crucial for ensuring an efficient production process. This article will provide a detailed comparison of the double-roll crusher and the impact crusher, helping you make the best choice based on your specific needs.
Operates on a compression principle, where material is crushed between two rotating rolls.
The material is primarily broken through a combination of shear and compression forces.
This design makes double-roll crushers particularly suitable for softer or medium-hard materials and can produce a finer particle size distribution.
Operates based on an impact principle.
Material is shattered through high-speed impacts between a rotating rotor and stationary impact plates.
This process can handle harder materials and ensures higher crushing efficiency.
Comprises crushing rolls, adjustment devices, spring assemblies, transmission mechanisms, and a base.
Wedge-shaped or shim adjustment devices are installed between the rolls, with adjustment bolts at the top to modify the discharge particle size.
Mainly consists of a frame, transmission mechanism, impact plates, and a rotor. The frame is typically divided into upper and lower parts connected by bolts.
The impact plates are suspended inside the crushing chamber, and the rotor is the primary working component, often made from a single cast steel structure.
| Features | Double-Roll Crusher | Impact Crusher |
| Material Strength | ≤250Mpa | ≤320MPa |
| Suitable Materials | Coal, coal gangue, coke，etc. | Granite, limestone, concrete, etc. |
| Crushing Stage | Mainly used in medium and fine crushing stages to further reduce material size and achieve a more uniform particle size distribution | Can be used in both medium and fine crushing stages, especially suitable for applications requiring moderate particle size and better particle shape. |
| Feed Particle Size | ≤80mm | ≤300mm |
| Discharge Particle Size | ≤5mm | ≤60mm |
| Discharge Particle Shape | Uniform, close to regular polyhedral | Good shape, close to regular polyhedral or round |
Simple Structure: Design is straightforward, making it easy to maintain and operate.
Easy Maintenance: Lower replacement and maintenance costs for components, reducing downtime.
Stable Operation: Smooth operation with fewer equipment failures.
Applicable Field: Especially suitable for the crushing of raw coal, fertilizers, and other medium-hard and brittle materials, eliminating the need for gangue removal and simplifying the coal washing process.
Low Energy Consumption: High operational efficiency and energy savings.
High Crushing Ratio: Capable of efficient crushing with high production rates.
Large Feed Size: Handles larger feed materials.
High Output: Suitable for large-scale production needs.
Good Product Shape: Produces well-shaped end materials that meet high standards.
Applicable Field: Widely used for construction aggregates and ore crushing, especially in scenarios requiring high-quality final products.
Maintenance is relatively simple, mainly involving regular checks on roll wear and adjusting the roll gap as needed to maintain stable discharge particle size.
Though more complex in structure, maintenance costs and frequency are relatively low due to the use of wear-resistant materials and technologies. Regular inspection and replacement of wear parts (such as impact plates and rotors) are necessary.
The choice between a double-roll crusher and an impact crusher depends on your specific needs. Impact crushers and double-roll crushers both offer broad applicability in terms of material hardness, moisture, and viscosity. Impact crushers excel with large feed sizes, high crushing ratios, and high output, making them suitable for hard materials and applications requiring high-quality end products. Double-roll crushers offer advantages in terms of lightweight design, simplicity, low over-grinding, and energy efficiency, making them ideal for coal crushing and applications where gangue removal is not necessary.
If you need to process softer or medium-hard materials and prioritize energy efficiency, the double-roll crusher is an ideal choice. Conversely, if you are dealing with harder materials and require higher crushing efficiency and better product quality, the impact crusher would be more appropriate.
Are you still hesitating about how to choose a crushing equipment? Click the button below to learn more details
Chat Online
Free consultation on related issues.
