Which machine has lower price, hammer crusher or impact crusher? In terms of crushing principle and application range, the two machines are similar. They both belong to hammer structural crusher and crush materials through impact between stone and stone, metal and stone. But the two machine do have difference which affects their prices.

First, let’s learn the crushing principles of the two machines.

Crushing principle for hammer crusher:the main functional part is the rotor with hammers and the rotor is composed of main shaft, disc, pin roll and hammer. After fed in the crusher by upstream feeder, materials are struck, impacted, shorn and ground into smaller particles by the rapidly rotating hammers, then qualified materials are discharged out of the discharging port. Explained specially, there is sieve plate under the rotor which is the main screen part with adjustable screen holes.

Crushing principle for impact crusher: the crushing parts are plate hammer and impact plate. After fed in crushing cavity, materials are impacted by rapidly rotating plate hammer and rebounded by impact plate and in this process materials are crushed through repeating impact by stone and metal. What impact crusher is different from hammer crusher is that there is a plate hammer fixed in the rotor and several impact plate in crushing cavity. Materials are crushed relatively thoroughly by multiple impact of plate hammer and impact plate and finally are discharged out of the bottom discharging port.

Next, let’s learn the differences between hammer crusher and impact crusher.：

1.Hammer crusher crushes materials only by hammers, which functions limited forces on materials; as for impact crusher, its plate hammer connects with rotor rigidly and it can crush materials through inertia from rotor with enough speed and kinetic energy.

2.There is grade bar at the bottom of hammer crusher which can realize adjustable screen and need no other screen; while impact crusher with no grade bar adjusts materials through adjustment device whose gap is adjustable. But the grade bar had specific requirement of material humidity while impact crusher has few requirement for material humidity and has few blockage.

3.Impact crusher has an observation door through which the internal parts’ wearing condition can be observed easily, and hammer crusher does not have one.

4.The plate hammer of impact crusher can be used repeatedly by exchanging installing direction. When one side is worn heavily, the plate hammer can be installed exchanged direction. This special design makes impact crusher long utilization life, few powders mixed in finished products and even particle shape. Impact crusher is applicable for road construction and other infrastructure projects.

The above statements show that impact crusher is better than hammer crusher in light of design principle, application range, utilization performance and finished product specification, therefore, impact crusher has a little higher price than hammer crusher. What General Mining Machinery wants to say is that impact crusher and hammer crusher both can crush materials under 5 in mohs hardness and for more higher hardness materials, we suggest you chose other crushing machines, such as cone crusher, jaw crusher, etc.

Finally, General Mining Machinery recommends several common production lines for you. Equipment for 700-800t/h limestone crushing production line: GZD1500×6000 vibrating feeder, PE-1200×1500 jaw crusher, two sets of GZD1300×4900 vibrating feeders, four sets of PF1318 European mills, four sets of 4YZS2460 vibrating screens. Equipment for 300/350t/h limestone sand-making production line: GZD1500×6000 vibrating feeder, PE-1200×1500 jaw crusher, two sets of GZD1300×4900 vibrating feeders, four sets of PF1318 European mills, four sets of 4YZS2460 circular vibrating screens.

Do you have new understanding for hammer crusher and impact crusher through above introduction? I hope this article is helpful for you. General Mining Machinery can customize you proper stone production line. Consulting line: 0371-67828877, 13733166918.