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high speed centrifuge
,sludge dewatering centrifuge
The Model PP Two-stage Pusher Centrifuge is a type of perforated basket centrifuge that is both continuous and effective. It is capable of continuously dewatering and washing slurry with crystals and fiber larger than 50 microns. This machine has successfully separated over 200 different kinds of products, such as sodium salt, ammonium salt, PVC, EPS, etc.
The machine is designed reasonably and manufactured accurately. All parts that come in contact with the material being processed are made of high corrosion-resistant special stainless steel with extremely low carbon content and high content of molybdenum or any other stainless steel that the customer requires. The machine has several advantages such as:
- Bearing design life: ≥30,000 hours
- Mechanical seal design life: ≥8,000 hours
- Machine design life: ≥15 years
- Running time under normal operating conditions: guaranteed for over 6000 hours every year
- Sea Salt
- Vacuum Salt
- Industrial Salt
- Mineral Salt
- Refined Salt
- Sodium Sulfate
- Potassium Sulfate
- Ammonium Sulfate
- Potash
- Salt Lake Minerals
Salt plants require:
- Continuous operation
- High throughput
- Low product moisture
- Minimal labor
- Stable crystal quality
The PP Series Pusher Centrifuge addresses these challenges by:
| Challenge | PP Solution |
|---|---|
| High production demand | Continuous operation up to 24/7 |
| High moisture content | Two-stage dewatering design |
| Product loss | Optimized screen basket |
| Labor cost | Automatic discharge |
| Product purity | Integrated crystal washing |
| Corrosion | Special stainless steel construction |
The PP Series operates continuously through centrifugal filtration and hydraulic pusher discharge.
Crystal slurry enters the first-stage basket continuously.
Under centrifugal force, mother liquor passes through the screen while solids remain on the basket wall.
The hydraulic system pushes the crystal cake from the first-stage basket to the second-stage basket.
Additional filtration removes residual moisture and improves dryness.
Wash liquid can be introduced to improve crystal purity.
The dewatered crystals are continuously discharged from the machine.
Technical Advantages
Suitable for 24-hour industrial production.
Up to 15 T/H mineral salt production.
Final product moisture can reach:
- Sea Salt: 3–4%
- Mineral Salt: ≤3%
- Bearing life ≥ 30,000 hours
- Mechanical seal life ≥ 8,000 hours
- Equipment life ≥ 15 years
Material options include:
- SS304
- SS316L
- Duplex Stainless Steel
- Customized Alloy Materials
Technical Parameter
| Item | PP-25 | PP-40 | PP-50 | PP-60 | PP-85 |
|---|---|---|---|---|---|
| Diameter (mm) | 200/251 | 290/360 | 438/500 | 560/630 | 738/820 |
| Rotate speed (Max)(rpm) | 3000 | 2500 | 2000 | 1360 | 1040 |
| Stroke of Pusher Mechanism (times/min) | 33-52 | 40-80 | 40-80 | 70-80 | 70-80 |
| Main motor power (kw) | 7.5 | 11-15 | 352-1140 | 286-1145 | 236-875 |
| Main motor Protection class | IP54/F1 | IP54/F1 | IP54/F1 | IP54/F1 | IP54/F1 |
| Main motor Power supply | 3 phase AC | Customized 3 phase AC | Customized 3 phase AC | Customized 3 phase AC | Customized 3 phase 380V/50HZ |
| Oil pump motor spec/Power(Kw) | 4 | NB4C100F | SNE/A280 | NB5D140F | NBX6-F160F |
| Oil pump outflow(ml/turn) | 100 | 100 | 480 | 140 | 180 |
| Oil pump max pressure(Mpa) | 2.5 | 2.5 | 2 | 8 | 8 |
| Export Dimension(mm) | 2155×1320×990 820×500×1650 |
2346×1090×1006 | 3660×1420×2078 | 3127×1700×1955 | 3990×2000×1939 |
| Weight(kg) | 1275 | 2600 | 4400 | 4860 | 6250 |
Wear-Resistant Sieve Segments for Long-Term Continuous Operation
- Easy replacement
- High filtration efficiency
- Long service life
- Customized aperture
How to Select the Right Model?
To recommend the proper model, please provide:
| Parameter | Required Information |
|---|---|
| Material Name | Salt type |
| Crystal Size | μm |
| Capacity | T/H |
| Feed Concentration | % |
| Feed Temperature | ℃ |
| Moisture Requirement | % |
| Washing Requirement | Yes / No |
| Corrosion Level | Low / Medium / High |
FAQ
Generally larger than 50 μm and free-draining crystals.
Yes. Multi-stage washing systems can be integrated.
Yes. PP-40, PP-50 and PP-60 are widely used in sea salt processing plants.
Typically:
- Sea Salt: 3–4%
- Mineral Salt: ≤3%
depending on crystal characteristics.
Yes. Peony supplies centrifuges as well as complete salt processing and refining systems.
Send us your material information, production capacity, crystal size, and moisture requirements.
Our engineering team will recommend the most suitable PP Series Pusher Centrifuge solution for your application.
Meanwhile, Peony welcomes distributors, agents, engineering companies, and industrial solution providers to cooperate in centrifuge and solid-liquid separation projects worldwide.
Whether you serve the salt industry, chemical industry, mining sector, pharmaceutical production, food processing, or environmental engineering markets, we can support your business with reliable equipment, technical expertise, and long-term partnership resources.
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