PFW Impact Crusher

Base on the plentiful experience of producing and marketing of impact crusher, SBM R&D institution designed the PFW series impact crusher. It is the newest style impact crusher and has been widely used in many industries, like chemical, metallurgy, road and bridge construction and sand making and so on.

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Reduce Stress Concentration

Maximum reducing the stress concentration is the primary measures and main way for improving the fatigue strength of the main shaft. Because the mutation of shape and size is the structural causes of stress concentration, in order to reduce the stress concentration, we should reduce as much as possible mutations in shape and size of the main shaft, and make it smooth, uniform change. In the inevitable to produce the large stress concentration, we can adopt the load reducing groove to reduce the impact of stress concentration.

Improve The Surface Quality

Increasing the fatigue strength of spindle can first considerate to improve the surface quality, such as in the spindle surface force higher area, we can process more smoothly. For the corrosive shaft section, on its surface, we can take appropriate protective measures, which greatly improved the surface quality of spindle.

Stipulate The Strict Inspection Requirement

For the important shaft section, we should stipulate the strict inspection method and requirements on the design drawings. For example, the spindle surface is possible dimensions, and the preventive measures should be taken to be as much as possible to reduce or eliminate, because this plays an important role on improving the fatigue strength of the spindle.

Take The Cooling, Reducing Load Measurement

The spindle plays a transmission role in impact crusher work. Operation under low stress running long, cooling and reducing load measures can significantly improve the degree of fatigue.

The Selection Of Suitable Materials

Spindle material usually select the carbon steel and alloy steel. Most of the steel shaft uses the rolling round steel and forgings. Some are the direct use of round steel. Compared with the alloy steel, carbon steel has a low price and the low sensitivity of stress concentration. But we can use the method of heat treatment and chemical heat treatment to improve its wear resistance and fatigue strength. So the carbon steel manufacturing spindle is particularly widespread.

Two-curtain cavity hydraulic impact crusher

Model Rotor Φ×L (mm) Feed Opening (mm) Max Feeding (mm) Capacity (t/h) Power (kw) Motor Model Machine Size (mm)
PFW1214II Ф1150×1400 1100×1430 500 130-200 4-132 Y315M-4/132 2400×2310×2550
PFW1315II Ф1300×1500 1200×1530 600 180-320 4-160 Y315L1-4/160 2700×2570×2800
PFW1318II Ф1300×1800 1200×1830 700 240-400 4-200 Y315L2-4/200 2700×2870×2800
PFW1415II Ф1400×1500 1450×1530 800 240-450 4-200 Y315L2-4/200 3000×2700×3070

Three-curtain cavity hydraulic impact crusher

Model Rotor Φ×L (mm) Feed Opening (mm) Max Feeding (mm) Capacity (t/h) Power (kw) Motor Model Machine Size (mm)
PFW1214Ⅲ Ф1150×1400 570×1430 250 90-170 4-132 Y315M-4/132 2550×2310×2100
PFW1315Ⅲ Ф1300×1500 625×1530 300 180-270 4-160 Y315L1-4/160 2960×2570×2380
PFW1318Ⅲ Ф1300×1800 625×1830 300 220-300 4-200 Y315L2-4/200 2960×2870×2380
PFW1415Ⅲ Ф1400×1500 800×1530 350 280-350 4-200 Y315L2-4/200 3120×2650×2660

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