Differences between PF Series and HSI Series Impact Crushes

The PF series and HSI series impact crushers differ significantly in structural design, performance characteristics, and application areas. Specific differences are as follows:

1、Structural Design Differences
PF Series Impact Crusher:
Rotor Design:Uses a standard rotor structure with hammers fixed by bolts. The rotor diameter and length are suitable for medium-scale crushing needs.
Crushing Chamber Type:Traditional deep-cavity design with a low feed inlet, facilitating production line layout, but the crushing chamber volume is relatively small.
Hammer Fixing Method:Bolted connection; replacement requires machine shutdown and is time-consuming.
Impact Plate Structure:Single or double-layer impact plates; gap adjustment is achieved through a mechanical device.

HSI Series Impact Crusher:
Rotor Design:Heavy-duty rotor with a larger diameter and length, significantly increasing rotational inertia and enhancing crushing capacity.
Crushing Chamber Type:Optimized multi-cavity uniform crushing structure with a larger crushing chamber volume and increased feed inlet height and width, accommodating larger particle sizes.

Hammer Fixing Method: Keyless conical sleeve connection or hydraulic locking device; hammer replacement does not require rotor disassembly and can be completed by a single person.

Impact Plate Structure: Toothed impact liner, combined with a hydraulic adjustment system, allows for quick adjustment of the gap between the impact plate and the hammer.

2、Performance Characteristics Comparison
PF Series Impact Crusher
Crushing Ratio: Medium, generally suitable for medium or fine crushing operations.

Discharge Particle Size: Controlled by adjusting the gap between the impact plate and the hammer; wide particle size range (e.g., adjustable from 30-50mm), but cubic particles account for approximately 70%.

Abrasion Resistance: Made of high-manganese steel or ordinary alloy materials; hammer life is approximately 3-6 months (depending on material hardness).

Maintenance: Fully hydraulic opening system supports rapid maintenance, but hammer replacement still requires a relatively long time.

Energy Consumption: Moderate motor power (e.g., 180-260kW for the PF-1315 model); relatively high unit energy consumption.

HSI Series Impact Crusher
Crushing Ratio: Higher crushing ratio, enabling integrated coarse, medium, and fine crushing, reducing investment costs.
Discharge Particle Size:Precisely controlled via a hydraulic adjustment system, resulting in a narrower particle size range (e.g., adjustable from 10-30mm), with over 90% cubic particle shape.
Abrasion Resistance:Utilizes high-chromium alloy or ceramic composite materials, extending hammer life to over one year.
Maintenance:A hydraulic opening system and quick-change device reduce maintenance time by over 40%.
Energy Consumption:Higher motor power (e.g., 250-350kW for the HSI1315 model), but lower unit energy consumption due to improved efficiency.

3、 Application Areas
PF Series Impact Crusher
Applicable Materials:Medium-hardness materials with compressive strength ≤350MPa, such as limestone, concrete, and coal gangue.
Typical Scenarios:Small to medium-sized sand and gravel aggregate production lines, construction waste recycling, and cement raw material crushing.
Advantages:High cost-effectiveness, suitable for users with limited budgets or less stringent requirements on output particle shape.

HSI Series Impact Crusher
Applicable Materials: Hard rock materials with compressive strength ≤500MPa, such as granite, basalt, iron ore, etc.

Typical Scenarios: Large-scale mining, high-grade highway/railway construction, high-end aggregate production.

Advantages: High efficiency and energy saving, suitable for users with high requirements for output particle shape and output.

4、Selection Recommendations
PF Series: Suitable for those with limited budgets, processing medium-hardness materials, less stringent requirements for output particle shape, or those needing rapid deployment.
HSI Series: Suitable for large-scale projects processing hard rock materials, pursuing high efficiency, energy saving, and excellent particle shape, or requiring long-term stable operation.