PC Series Hammer Crusher (Single-Stage Crushing Solution)

The PC Series Hammer Crusher is a proven crushing solution developed by Farvista Mining Equipment in response to practical market demands and long-term operating experience. It is specifically designed for single-stage crushing of medium and low hardness, brittle materials, providing a simple, efficient, and cost-effective alternative to traditional multi-stage crushing systems.

With its high reduction ratio, compact structure, and ease of operation and maintenance, the PC Series Hammer Crusher has become a classic choice in industries where simplified process flows and stable production are prioritized. By utilizing a single crushing stage, large raw materials can be directly reduced to usable product sizes, significantly reducing equipment investment, installation complexity, and overall operating costs.

The PC Series Hammer Crusher operates on a high-speed impact crushing principle. Raw material enters the crushing chamber through the feed opening and is subjected to repeated impact from rapidly rotating hammer heads mounted on the rotor. Under the combined action of impact, shear, and collision, the material is crushed against the hammer heads and the internal liners.

As the material size decreases, it is further ground between the hammer heads and the grate bars installed beneath the rotor. Particles smaller than the grate bar gap are discharged from the crusher, while oversized material remains in the crushing chamber until it reaches the required size.

This continuous impact and screening process enables efficient size reduction and stable product quality in a single crushing stage.

The PC Series Hammer Crusher features a straightforward and efficient structure, centered around the rotor assembly:

Crusher Housing
Fabricated from heavy-duty welded steel plates, the housing provides robust structural support and ensures long-term durability. High-manganese steel liners are installed on the inner walls to resist impact and abrasion. The housing is typically divided into upper and lower sections, allowing convenient inspection and maintenance.

Rotor Assembly
The “heart” of the hammer crusher, consisting of the main shaft, hammer discs, pins, and hammer heads. Each rotor undergoes precise dynamic balancing to ensure smooth and stable operation at high rotational speeds.

Hammer Heads
The primary wear and working components, hinged to the hammer discs via pins. Hammer heads are available in heavy-duty and light-duty configurations, allowing adaptation to different material sizes and hardness levels.

Grate Bars (Screen Plates)
Installed beneath the rotor, the grate bars control the final product size. Material smaller than the grate gap is discharged, while larger particles are retained for further crushing.

Drive System
The rotor is driven by an electric motor through a flexible coupling or V-belt transmission, providing reliable power transfer and easy maintenance.

Safety Protection System
To protect the crusher from damage caused by uncrushable objects such as iron pieces, mechanical overload protection devices are incorporated, commonly through safety sleeves on hammer pins or equivalent mechanisms.

The PC Series Hammer Crusher is widely applied in industries processing medium to low hardness and brittle materials, including:

Cement Industry
Crushing of limestone, marl, shale, and similar raw materials. The hammer crusher is often a key component in cement production lines due to its high reduction ratio and stable output.

Building Materials and Aggregate Industry
Production of construction aggregates and combined stone-and-sand processing flows, particularly suitable for medium hardness rocks.

Coal and Metallurgical Industry
Crushing of coal, coke, and slag materials.

Chemical and Other Industries
Crushing of gypsum, salt, and various chemical raw materials requiring controlled size reduction.

The PC Series Hammer Crusher is suitable for medium and low hardness, brittle materials, such as:

Limestone

Bluestone

Gypsum

Marl

Shale

It is not recommended for crushing high hardness materials (such as granite or basalt), nor for tough or sticky materials, as these conditions may cause excessive wear, blockage, or unstable operation.

High Reduction Ratio with Single-Stage Crushing
Capable of achieving reduction ratios exceeding 50:1, allowing large feed sizes to be crushed directly into fine products and simplifying the overall process flow.

Simple Structure and Easy Operation
Compact design with clearly arranged components, making operation intuitive and maintenance straightforward.

Controlled Product Size and Good Particle Shape
Product size can be adjusted by changing grate bar specifications. The resulting aggregates typically exhibit cubic particle shapes, superior to jaw crusher products.

High Productivity and Relatively Low Energy Consumption
Continuous impact crushing ensures high throughput, with lower energy consumption compared to traditional multi-stage crushing systems.