1. What is a reversible hammer crusher?
Reversible hammer crusher is a mining crushing equipment with a bidirectional rotation design. It realizes double crushing of materials through forward and reverse rotation of the hammer head, greatly improving efficiency and extending the life of the hammer head. Compared with traditional hammer crushers, its reversible rotor structure can avoid frequent shutdowns to replace hammer heads, and is particularly suitable for fine crushing of medium-hard materials such as limestone, coal gangue, and gypsum.
Core advantages:
✔ Bidirectional crushing: The rotor can rotate forward and reverse, and the hammer head wears evenly on both sides, and the life span is increased by more than 30%.
✔ Efficient and energy-saving: Large crushing ratio (10-25), uniform finished product particle size (≤3mm accounts for 90%).
✔ Easy maintenance: Hydraulic unpacking design, quick replacement of hammer heads and screen plates.
2. Working principle of reversible hammer crusher
• Feeding stage: The material enters the crushing chamber from the feed port, and the high-speed rotating hammer (speed 800-1500r/min) performs the first impact crushing.
• Reversible crushing: When one side of the hammer is worn, the rotor automatically reverses and the other side of the hammer continues to work without stopping for adjustment.
• Screening and discharge: The crushed material is discharged through the bottom screen plate (adjustable aperture), and the particles that do not meet the standards continue to be crushed in a cycle.
Compared with traditional hammer crusher:
| Features | Reversible hammer crusher | Ordinary hammer crusher |
| Rotor design | Bidirectional rotation | Unidirectional rotation |
| Hammer utilization | 100% (double-sided use) | 50% (single-sided wear) |
| Applicable materials | Medium-hard, sticky and wet materials | Brittle dry materials |
3. PCF series reversible hammer crusher model parameters
| Model | Rotor diameter (mm) | Feed particle size (mm) | Discharge particle size (mm) | Output (t/h) | Power (kW) |
| PCK-0808 | 800×800 | ≤200 | ≤3-30 adjustable | 25-50 | 55-75 |
| PCK-1010 | 1000×1000 | ≤250 | ≤3-30 adjustable | 50-100 | 90-110 |
| PCK-1212 | 1200×1200 | ≤300 | ≤3-30 adjustable | 100-200 | 132-160 |
Note: Supports customized sieve plate aperture and dust removal device to meet different working conditions.
4. Recommendations for purchasing reversible hammer crusher
• Selection by material characteristics:
High hardness materials (such as granite): It is recommended to choose high chromium alloy hammer head + hydraulic protection device.
Wet materials (such as clay): Anti-blocking sieve plate and heating design are required.
• Price reference:
Small equipment (PCF-0808): ¥80,000-120,000
Medium equipment (PCF-1010): ¥150,000-250,000
Large production line supporting equipment: Contact customer service for a customized quote.
5. FAQ
Q1: What is the difference between a reversible hammer crusher and an impact crusher?
Crushing principle: hammer crushing relies on the impact of the hammer head, and impact crushing relies on the collision of the plate hammer and the impact plate;
Discharge particle size: reversible hammer crushing is finer (≤3mm), and impact crushing is suitable for coarse crushing (≤50mm).
Q2: How often should the hammer head be replaced?
Depending on the hardness of the material: crushing limestone is about 6-12 months, and iron ore slag is about 3-6 months.
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