PF Impact Crusher
Limestone & Aggregate Shaping
Factory-direct PF impact crushers for limestone, dolomite, recycled concrete, and aggregate shaping. Six models from 15 to 400 t/h handle secondary or tertiary crushing with adjustable aprons, quick wear-part access, and cubical output.
- Best for limestone, dolomite, asphalt, and recycled concrete after a jaw crusher
- Choose PF when cubical 0-30 mm output matters more than minimum wear cost
- Popular buying range: PF-1210 and PF-1214 for 100-200 t/h secondary lines
6
Models
400 t/h
Max Capacity
Limestone
Best Fit
Good fit to keep in mind
If your target is cubical 0-30 mm limestone or recycled aggregate after a jaw crusher, PF is usually the short list. If your feed is highly abrasive granite at high tonnage, compare against a cone before buying.
How an Impact Crusher Works
Unlike a jaw or cone crusher that squeezes material, an impact crusher uses kinetic energy — the rotor spins at high speed, blow bars strike incoming rock and fling it against stationary impact aprons, shattering it along natural fracture planes.
01
Feed
Material enters the feed opening and falls onto the fast-spinning rotor (500–800 RPM). Feed size must not exceed the rated maximum for the model.
02
Impact
Blow bars on the rotor strike material with high kinetic energy (KE = ½mv²), fragmenting it along natural grain boundaries and flinging it across the crushing chamber.
03
Rebound
Fragments hit the primary then secondary impact apron, breaking further. Pieces rebound and re-enter the rotor zone until small enough to exit at the bottom.
04
Discharge
Crushed product exits through the gap between the lowest apron and the rotor. Tighten the apron for finer output; open it for higher throughput.
Why impact crushing produces better aggregate shape
Compressive crushers (jaw, cone) force rock to split along weak planes, producing angular, flaky particles. Impact crushers fracture rock along its natural grain boundaries, producing cubical particles with low needle-flat ratio — the preferred shape for high-strength concrete and asphalt.
PF Series — Complete Specifications
6 models from small secondary-stage duty (PF-1007) to large-plant tertiary crushing (PF-1320).
| Model | Rotor Size | Feed Opening | Max Feed Size | Capacity | Motor Power | Weight | Get Quote |
|---|---|---|---|---|---|---|---|
| PF-1007 | Φ1000×700 mm | 400×730 mm | 300 mm | 15–60 t/h | 45–55 kW | 7 t | Quote |
| PF-1010 | Φ1000×1050 mm | 400×1080 mm | 300 mm | 50–90 t/h | 55–75 kW | 11 t | Quote |
| PF-1210 | Φ1250×1050 mm | 450×1060 mm | 300 mm | 80–150 t/h | 90–110 kW | 14 t | Quote |
| PF-1214 | Φ1250×1400 mm | 450×1440 mm | 300 mm | 90–200 t/h | 132 kW | 19 t | Quote |
| PF-1315 | Φ1320×1500 mm | 550×1530 mm | 350 mm | 130–280 t/h | 185–200 kW | 24 t | Quote |
| PF-1320 | Φ1320×2000 mm | 610×1900 mm | 500 mm | 180–400 t/h | 220–300 kW | 30 t | Quote |
* Capacity figures are for medium-hard limestone. Hard abrasive rock (granite, basalt) may reduce capacity by 20–30%. Max compressive strength of feed: 360 MPa.
Typical PF Buying Shortlists
Most buyers are not choosing from all six models. They start with one of these three capacity bands, then confirm feed size, output, and wear expectations.
15-90 t/h
PF-1007 / PF-1010
Small limestone lines, brick and concrete recycling, or pilot plants after PE-250×400 to PE-400×600 jaw crushers.
Good where capital cost matters and feed top size stays near 300 mm.
80-200 t/h
PF-1210 / PF-1214
Mainstream limestone and dolomite aggregate lines that need 0-30 mm cubical product.
This is the most commercial buying range for mid-size quarries and road-base plants.
130-400 t/h
PF-1315 / PF-1320
Larger secondary or tertiary lines where feed is already controlled and shape matters more than cone-level wear life.
These models need stable feed presentation and are not the cheap answer to very abrasive rock.
Main Components
Knowing each component helps you order the right wear parts and perform targeted maintenance. All blow bars and liners are stocked for same-week dispatch.
Rotor
Heavy forged-steel drum rotating at 500–800 RPM. Carries the blow bars and generates the kinetic energy that fractures material on impact. Dynamically balanced to minimise vibration.
Blow Bars
Replaceable wear parts bolted to the rotor. Available in high-chrome martensitic steel (for abrasive rock) or ceramic-composite (for recycling). Each bar has 4 usable positions before replacement.
Primary Impact Apron
The first stationary impact plate. Material flung by the rotor strikes here and rebounds for secondary breaking. Gap between apron and rotor controls the coarsest output size.
Secondary Impact Apron
Second stationary plate set closer to the rotor for finer reduction. Both aprons are hydraulically adjustable for quick output-size changes without stopping production.
Wear Liners
Replaceable armour lining the crusher housing and impact aprons. Protect the steel frame from direct impact and extend the overall service life of the machine.
Rotor Bearings
Heavy-duty spherical roller bearings mounted outside the crushing chamber. Isolated from dust and heat by labyrinth seals and a dedicated oil-lubrication system.
Hydraulic Opening System
Rear housing swings open hydraulically for full access to the blow bars and liners. Blow bar replacement takes 1–2 hours versus a full shift with manual access designs.
V-Belt & Drive
Multiple V-belts transmit motor power to the rotor via a flywheel. Belt tension and alignment directly affect rotor RPM and therefore product fineness.
Best Applications for PF Impact Crusher
PF impact crushers are most effective for limestone, dolomite, recycled concrete, and similar medium-hard materials where cubic product shape matters more than minimum wear cost.
Limestone & Dolomite Aggregate
Low-abrasion quarry stone
Strong fit for 0-5, 5-10, and 10-30 mm aggregate where particle shape and fines control matter.
Recycled Concrete & Asphalt
Demolished concrete, brick, asphalt pavement
High reduction ratio and adjustable aprons work well when the feed is pre-sorted and steel contamination is controlled.
Secondary Shaping After Jaw Crusher
Jaw discharge from 80-350 mm down to saleable aggregate
Often replaces an extra crushing stage in limestone lines by combining reduction and shaping in one machine.
Cement and Soft-Rock Circuits
Limestone, marl, gypsum, phosphate rock
Useful where feed is soft to medium-hard and operators want lower capital cost than a cone-based line.
Low-Abrasion Manufactured Sand
Limestone and dolomite fines
Used as a tertiary shaping step when the goal is cubical fine aggregate rather than high-wear hard-rock duty.
PF Fit Check Before You Buy
This is the fast decision filter we would use on a WhatsApp inquiry. If the left card sounds like your plant, PF is usually a serious option. If the right card sounds closer, stop comparing only PF models and compare crusher types.
Choose PF first
- Your material is limestone, dolomite, asphalt, or recycled concrete.
- You want cubical aggregate and a high reduction ratio in one machine.
- The line already has a jaw crusher and feed top size is under 500 mm.
Compare a cone first
- Your feed is granite, quartzite, basalt, or another abrasive hard rock.
- Wear cost per ton matters more than the last bit of particle shape.
- You need long continuous duty with tight CSS and predictable liner life.
What we need to size a PF crusher
Send these five inputs and the first recommendation is usually accurate enough to shortlist one or two models instead of all six.
- Material and abrasiveness: limestone, dolomite, recycled concrete, granite, etc.
- Maximum feed size after the upstream jaw crusher or screen.
- Target product sizes such as 0-5 mm, 5-10 mm, or 10-30 mm.
- Required throughput in t/h and daily operating hours.
- Moisture, clay content, or rebar contamination if this is a recycling job.
Impact vs Jaw vs Cone Crusher
Use this table to decide if PF impact crushing is the right choice for your circuit, or whether a jaw or cone crusher would serve better.
| Feature | PF Impact Crusher | PE Jaw Crusher | PY Cone Crusher |
|---|---|---|---|
| Working Principle | Kinetic impact + rebound | Compressive squeeze | Compressive squeeze |
| Best Feed Type | Limestone, dolomite, recycled concrete | Large ROM feed | Granite, basalt, iron ore |
| Reduction Ratio | 7–10× | 3–5× | 3–5× |
| Product Shape | Cubical ★★★★★ | Angular ★★★ | Cubical ★★★★ |
| Best Stage | Secondary / Tertiary | Primary | Secondary / Tertiary |
| Typical Max Feed | Up to 500 mm | Up to 1,020 mm | Up to 300 mm |
| Wear Cost On Hard Rock | High | Low | Low–Medium |
| Capital Cost | Low–Medium | Low | Medium–High |
| Main Trade-Off | Wear rises fast on abrasive rock | Needs a second stage for shape | Higher capex than PF |
How to Select Your PF Model
Four steps to narrow down the right model. Our engineers confirm the best fit via WhatsApp within 24 hours.
01
Confirm Abrasiveness First
PF works best on low-abrasion feed such as limestone, dolomite, asphalt, and recycled concrete. If your plant runs granite, quartzite, or highly abrasive basalt for long shifts, compare total wear cost against a cone before buying.
02
Define Feed Size
PF-1007 accepts up to 300 mm; PF-1320 accepts up to 500 mm. If your feed is raw ROM stone above that size, run a jaw crusher first. PF is usually the second or third machine in the circuit, not the primary breaker.
03
Set Target Capacity
Select a model rated at 120–130% of your required t/h. The table uses median figures; wet, sticky, or very hard feed can reduce capacity by 20–30%. Build in headroom.
04
Lock In Output and Wear Target
Adjust the impact apron gap to control output size. Tighter gap means finer product but lower throughput and faster blow-bar wear. For 0-30 mm aggregate after a medium jaw crusher, PF-1210 or PF-1214 is the usual shortlist.
Not sure if impact crushing is right for your material?
Tell us your raw material type, hardness, feed size, and required output size. We'll recommend the right crusher type and model within 24 hours.
Maintenance Schedule
Blow bar rotation and apron liner monitoring are the two most critical tasks. Follow this schedule to maximise uptime and minimise wear-part cost.
Every 8 Hours
- Check blow bar wear by measuring remaining thickness (replace at 25–30% loss)
- Inspect V-belt tension and alignment — retighten if deflection > 15 mm
- Verify impact apron gap setting with a feeler gauge
- Listen for abnormal rotor vibration; stop immediately if detected
Weekly
- Rotate blow bars to next position (4 positions available per bar)
- Inspect wear liners inside the housing for thinning or cracks
- Grease rotor shaft bearings per manufacturer specification
- Check hydraulic system oil level and cylinder seals
Monthly / As Needed
- Replace blow bars when all 4 positions are worn beyond limit
- Replace impact apron wear plates when gap can no longer be adjusted correctly
- Flush and replace rotor bearing lubricant every 3–6 months
- Inspect rotor for cracks or stress marks; re-balance if vibration increases
Why Choose MarsCrusher PF Series
Cubic end product — low needle-flat ratio meets highway grade standards
High reduction ratio 7–10× in a single pass
High-chrome martensitic blow bars with 4-position rotation for maximum service life
Hydraulic rear-cover opening for fast blow bar and liner replacement
Adjustable impact apron gap for precise output size control
Semi-automatic safety device protects rotor from tramp metal
PF Impact Crusher FAQ
Short answers to common procurement questions before requesting quotation.
Is PF impact crusher suitable for limestone and recycled concrete?
Yes. PF impact crushers are a strong fit for limestone, dolomite, and recycled concrete when you need secondary crushing with good cubic shape. For very abrasive hard rock at high tonnage, cones often have lower wear cost.
What information do I need to choose the right PF impact crusher model?
Start with feed size, required t/h, material hardness, and target output size. Those four inputs usually narrow the choice quickly, then apron setting and wear-part specification are confirmed for the exact duty.
Do impact crushers generate more fines?
Usually yes, compared with jaw crushers. This can be an advantage for shaping and sand production, but it should be balanced against downstream screening targets.
Which wear parts need the closest monitoring on a PF impact crusher?
Blow bars and impact liners are the main wear parts. Rotation schedule, liner clearance, and timely replacement are critical for stable output, good product shape, and predictable wear cost.
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