PF Series Impact Crusher
Industrial Secondary Rock Crusher Machine
The PF Series Impact Crusher is highly optimized as an efficient secondary crushing equipment, widely utilized worldwide across global aggregate quarrying lines and mining plants. It is uniquely engineered to process medium-hard minerals with compressive strength under 320MPa, such as limestone, river pebble, granite, basalt, iron ore, and quartz. Due to its outstanding performance and high reduction ratio, it serves as the essential secondary-tier crushing gear in global mining configurations, with an international installation footprint ranked closely next to heavy-duty primary Jaw Crushers.
PF Series Impact Crusher Showcase
Real manufacturing, assembly, and testing details inside our factory workshop.
Operation Demonstration
Watch the strict factory running test and inspection process of Hengtai high efficiency jaw crusher.
Performance & Structural Features
Why global mining operators choose Hengtai PF Impactors for quarry processing lines.
- Dual Shaping & Cubical Aggregate: Features a dual-functional crushing and shaping mechanism. The finished output particle is perfectly cubical with high packing density, entirely free from micro-cracks or excessive flakiness.
- Composite High-Chrome Blow Bars: Cast via a professional alloy combination process combining superior chromium with wear-resistant steel matrices, yielding exceptional resistance against heavy mechanical and thermal impacts.
- Stable Keyless Rotor Interface: Heavy-duty dynamically balanced rotor system operates reliably, utilizing an advanced keyless sleeve connection onto the main solid forging shaft.
- Adjustable & Symmetric Wear Parts: Straight blow bars are symmetrically engineered with dual teeth so they can be turned 180 degrees when worn. Broken-line impact curtain linings are fully interchangeable, reducing replacement overheads.
- Hydraulic and Ratchet Cover Opening: Designed with a semi-automated mechanical ratchet system alongside intelligent hydraulic cylinder openings, allowing users to safely change blow bars and inner liner blocks in minimal time.
- Smart Tramp Iron Release: Utilizes a unique gravity-assisted self-weight suspension curtain mounting arrangement. If non-crushable tramp metals or iron blocks accidentally enter, the curtain swings back rapidly to evacuate it automatically.
Working Principle
How high-velocity kinetic impact forces transform raw stone blocks into premium cubic sand and aggregate.
Primary Kinetic Impact Zone: Driven continuously by the high-power electric motor, the balanced heavy rotor group spins rapidly. As raw mineral materials pass the feed opening, they encounter the powerful blow bars and are smashed immediately by high-velocity impact forces.
Multi-Cavity Bouncing Loop: Broken rock fractions are thrown toward the primary multi-angle impact curtains mounted above the top frame chamber. Rocks strike the liner plate, shatter further, and bounce back into the blow bar track area for an ongoing cycle of intense material-on-material collisions.
Discharge Grading Control: Calibrated minerals smaller than the curtain throat clearances advance into the secondary or tertiary reduction cavities for fine-tuning. Operators can seamlessly adjust the distance between the rotor tip circle and curtain plates via the top adjustments to modify aggregate grading and particle distribution.
Technical Specifications & Parameters
Standard specifications and performance metrics of Hengtai PF series equipment.
| Model | Rotor Dimensions (mm) | Feed Opening Size (mm) | Max Feed Size (mm) | Capacity Output (t/h) | Motor Power (kW) |
|---|---|---|---|---|---|
| PF-1010 | Φ1000 × 1050 | 400 × 1080 | 350 | 50 – 80 | 55 – 75 |
| PF-1210 | Φ1250 × 1050 | 400 × 1080 | 350 | 80 – 120 | 110 – 132 |
| PF-1214 | Φ1250 × 1400 | 400 × 1430 | 350 | 100 – 160 | 132 – 160 |
| PF-1315 | Φ1320 × 1500 | 860 × 1540 | 400 | 150 – 220 | 220 |
| PF-1320 | Φ1320 × 2000 | 860 × 2040 | 400 | 160 – 220 | 220 |
| PF-1515 | Φ1500 × 1500 | 860 × 1540 | 400 | 200 – 280 | 280 – 315 |
| PF-1520 | Φ1500 × 2000 | 830 × 2040 | 400 | 200 – 320 | 315 |
| PF-1620 | Φ1600 × 2000 | 860 × 2040 | 400 | 260 – 360 | 355 |
* Note: The configuration, physical look, metrics, capacity range, and dimensions are subject to constant industrial improvement. Precise layout data should follow certified operational manuals. Interpreting rights reserved by Hengtai Intelligent Manufacturing.
Frequently Asked Questions (FAQ)
Quick industrial answers to assist buyers with secondary crushing plant selection.
Q1: Why is an impact crusher preferred over other machinery for producing highway concrete aggregates?
Impact crushers use intense instantaneous impact forces rather than slow compression crushing. This process breaks stones along natural grain cleavage lines, producing highly cubical aggregate shapes with low flake counts, minimal internal tension, and zero hidden micro-cracks. This output shape delivers optimal adhesion stability within high-strength concrete mixes.
Q2: How do you adjust the output size and grading curve on a PF stone crusher?
Output aggregate grading is managed through the top mechanical setting assembly. Tightening the suspension frame reduces the clearances between the inner liner blocks and the rotating blow bar sweep circles, producing a finer aggregate distribution. Adjusting the motor drive pulley size can also alter rotor velocities to meet fine-sand fraction needs.
Q3: How do the symmetric blow bars extend service lifetimes and reduce costs?
Hengtai straight blow bar profiles feature an axial symmetric design. Once the primary crushing face reaches wear tolerances, operators can turn the bar 180 degrees to utilize the fresh, unworn side. This design doubles the wear life of the high-chrome alloy before a complete replacement is required.
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