What is a double-stage crusher?

The double-stage crusher,the based on the traditional horizontal hammer crusher, is a crushing equipment with a double-rotor series structure, which achieves material refinement through two-stage continuous crushing. Its core components include upper and lower independent rotors, high alloy wear-resistant hammers and screen-free crushing chamber design, which are suitable for the treatment of medium and high hardness materials and highly wet and sticky waste materials.

How does a two-stage crusher work?

Primary Crushing: After the material enters the upper crushing chamber, the hammers of the first set of rotors rotate at high speed to perform strong impact and shearing to complete the coarse crushing.

Secondary Grinding: The coarsely crushed material is thrown into the lower crushing chamber, hit again by the second set of rotor hammers, and collides with the impact liner and self-friction between materials, forming a composite crushing effect of “hammer powder + material powder”.

Particle size control: The discharge particle size is adjusted by adjusting the rotor speed or the hammer gap, and uniform particles (usually ≤3mm) can be achieved without a screen.

What are the advantages of a two-stage crusher?

Screen-free anti-blocking design: It is suitable for materials with high moisture content (unlimited) such as coal gangue and wet and sticky construction waste to avoid blockage and shutdown.

Wear resistance and economy: The hammer head adopts shifting gap adjustment technology, which can be adjusted and reused after wear, and the service life is extended by 3 times; the combined hammer head structure only needs to replace the worn parts, reducing maintenance costs.

High efficiency and energy saving: The two-stage crushing process reduces unit energy consumption by 25%, the production capacity reaches 15-100 tons/hour (depending on the model), and the crushing ratio is as high as 30-50.

Environmental protection and low noise: The closed structure is combined with a dust removal device, and the dust emission is reduced by more than 60%, and the operating noise is ≤85dB

What are the technical parameters of the double-stage crusher?

Note: 

The selection of crushing equipment needs to be accurately selected according to the hardness and particle size of the raw materials, the particle size and output of the output, and the moisture content of the materials. Please consult the engineer in detail to obtain an accurate quotation.