High-Performance Horizontal Peeler Centrifuge for Chemical Applications
CPS’ Chemical Peeler Centrifuge is a high-throughput horizontal basket centrifuge designed for efficient solid-liquid separation in industrial settings. Engineered for automatic, enclosed operation, it ensures contamination-free processing, making it ideal for chemical production where operator contact must be minimized.
Efficient Filtration with Peeler Centrifuge Technology
Our peeler, also known as a scraper centrifuge, utilizes a knife or blade to peel and scrape the filtered cake for an automatic discharge and easy unloading. Delivers fast, reliable filtration using a perforated basket or rotating siphon, optimizing separation efficiency for products with good filterability. The fully automated cycle—including loading, washing, centrifuging, and peeling—operates at maximum speed, achieving high production rates with minimal residual moisture.
Key Advantages
- High-Speed Processing for optimized batch operation in chemical and pharmaceutical centrifuge applications
- Sealed System to prevent contamination and ensure safe handling of sensitive materials
- Customizable Design available, with multiple configurations (including horizontal peeler and starch centrifuge options)
- Efficient Discharge via integrated scraper mechanism, which enables complete product removal with minimal waste.
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Production Cycle and Design Advantages
Overview
The next few slides will walk through the entire Production Cycle, showing the loading, cake washing, centrifugation, discharge, and heel cake removal. This slide shows all 7 at one time before we zoon in to each. After that, there will also be slides showing the CIP system, and three slides with the main components highlighted.
Loading
The solid-liquid suspension (slurry) is fed through the feed pipe into the centrifuge. The slurry moves towards the filter cloth under the action of centrifugal force, and onto a perforated basket. The solid part of the suspension is retained by the filter cloth, forming a cake, while the liquid filters through the cake, through the filter cloth, and through the holes of the basket. The growth of the cake thickness is controlled by a mechanical or laser cake detector, which can automatically stop the feeding phase when the desired cake thickness is reached.
Cake Washing
Cake washing removes any impurities present in the cake. The washing liquid is distributed onto the product in the basket, through nozzles located along the washing pipe. The liquid passes through the product, then passes from the filter cloth and the holes of the basket, removing impurities present in the cake.
Centrifugation
Once the washing phase is complete, the centrifuge accelerates to the maximum speed and maintains that speed for a given amount of time to achieve the desired level of residual humidity in the product. At the end of the centrifugation, the centrifuge decelerates to the discharge speed.
Discharge
After reaching the discharge speed, the knife increment command is activated. The scraping knife starts cutting the cake, moving the product into the screw conveyor or discharge chute and into the product collection systems (drums, bin, dryers, mixers).
Heel Cake Removal
At the end of the product discharge phase, a heel cake of about 4-5 mm remains on the filtering cloth. This heel cake can be removed, to improve the filterability of the product, through the high-pressure nitrogen blow from the outside diameter of the basket.
Clean in Place (C.I.P.)
The centrifuge should be cleaned at every change of product to avoid cross contamination between campaign productions. The fully automated centrifuge cleaning system is composed of 2 main stages: Washing Machine Effect and cleaning with spray balls, which can be alternated to achieve maximum cleaning and to optimize the consumption of the cleaning liquid.
Main Components – Centrifuge with Perforated Basket
- Knife
- Feed pipe
- Wash pipe
- Screw conveyor
- Solid discharge flange
- Manual closing system
- Sight glass
- Screw conveyor gearbox and motor
Main Components – Centrifuge with Rotary Siphon
- Automatic clamping ring (only for HX/L/S 1850/1300 and 2000/1400)
- Knife
- Feed pipe
- Screw conveyor
- Solid discharge chute
- Motor
- Basket inspection door
- Light glass
- Sight glass
- Liquid discharge outlet
Main Components – Centrifuge with Rotary Siphon
- Knife
- Screw conveyor
- Skimmer (if necessary)
- Feed pipe
- Wash pipe
- Basket
- Active Product Ingredients (APIs)
- Antibiotics
- Pharmaceutical Intermediate Products
- High Potent Active Product Ingredients (HPAPI)
- Vitamins
- Amino, fatty acids
- Steroids
- Ideal for pharmaceutical, Active Pharmaceutical Ingredients (APIs), and potent compound processes
- Maximum purity of discharged products
- Small and compact footprint
- cGmp design for CIP and eliminates product stagnation zones
- Laser cake detector (external to process chamber)
- No contact between the operator and the product during operation makes it ideal for pharmaceutical synthesis products
- Through-the-wall installation for clean rooms
- Full access to inspect all areas including rear of basket and shaft seal
- Horizontal basket assures even loading of cake
- Filter medium is easily changed and secured in the basket
- Installation directly on the floor on anti-vibration dampers
- FDA-approved oil lubrication for bearings on all models
- Sizes range from 400mm (15.75 in.) diameter to 1700mm (66.9 in.) diameter – See chart below
- Knife scraper blade fixed without use of bolts (FOD compliant)
- Suitable for the maximum recovery of solids discharged and the protection of the discharge chute
- Steep solids discharge chute (30° from vertical)
- Heel removal assist with optional blow back
- Options for solids discharge with high containment (use of continuous liner, isolator, etc.)
- Maintenance of shaft and bearings from the rear side of the machine (service area) without contaminating the clean room
- Complete PLC controls with touch-screen interface
- Switch between automatic, semi-automatic, and manual operation
- Variable frequency drive (VRD) speed control
- ATEX (Europe) electrical enclosures or NEC (North America)
- Optional instrumentation integrated into the control system including oxygen monitoring, temperature, pressure, liquid feed flow, and N2 purge
- High-level surface finishing for the cleaning of the process zone
- The highly effective C.I.P. system (Clean-in- Place) uses a Washing Machine Effect cycle and spray balls
- The C.I.P. system avoids cross-contamination between products from one campaign production to another, which makes the machine suitable for multi-purpose applications
- Options for sterilizing include steam or Vaporized Hydrogen Peroxide (VHP system)
- Pressure tight to 400mm H20 (0.6 psig)
- Inert gas purging
- Easily replaceable endless filter cloth, thermo-welded, in polypropylene or PTFE of various weaves and sizes
- Construction materials
- Parts in contact with the product: all stainless steels and special alloys are available, such as AISI 316L, AISI 904L, hastelloy, monel, alloy 59, 254 SMO, nickel, titanium, SAF 2205
- Surface coating option: Halar (ECTFE)
- Elastomers: antistatic and FDA certified, Teflon ETFE, and hard rubber
- Certifications, validation, FDA qualification, and construction documentation
- Field service and technical support available
- Mechanical and electrical parts
- Process control and maintenance manuals
- Mechanical and electrical upgrades
Standard Sizes and Technical Data
| Centrifuge model: HX (Unit) |
Basket Diameter (mm) |
Filtering Surface (m2) |
Cake Volume (liter) |
Max Load (kg) |
Max Speed (RPM) |
G Factor (xg) |
Weight With no Motor (kg) |
With Inertia Base & Motor (kg) |
|---|---|---|---|---|---|---|---|---|
| 500/150 | 500 | 0.24 | 15 | 19 | 2700 | 2037 | 650 | 1700 |
| 650/180 | 650 | 0.37 | 27 | 34 | 2400 | 2093 | 1400 | 3100 |
| 650/320 | 650 | 0.65 | 48 | 60 | 2400 | 2093 | 1550 | 3800 |
| 850/400 | 850 | 1.06 | 96 | 120 | 1900 | 1715 | 2750 | 6300 |
| 850/500 | 850 | 1.33 | 120 | 165 | 1900 | 1715 | 3200 | 7600 |
| 1000/500 | 1000 | 1.57 | 165 | 206 | 1550 | 1343 | 3600 | 12300 |
| 1000/650 | 1000 | 2.04 | 215 | 269 | 1550 | 1343 | 4200 | 12800 |
| 1250/650 | 1250 | 2.55 | 346 | 433 | 1300 | 1180 | 6500 | 16000 |
| 1300/850 | 1300 | 3.47 | 500 | 700 | 1250 | 1135 | 8500 | 21000 |
| 1700/920 | 1700 | 4.91 | 922 | 1290 | 1030 | 1000 | 14000 | 42000 |
| 1700/1150 | 1700 | 6.14 | 1152 | 1614 | 1030 | 1000 | 26000 | 58000 |
| 1850/1300 | 1850 | 7.55 | 1520 | 2130 | 985 | 1003 | 26000 | 58000 |
| 2000/1440 | 2010 | 9 | 2023 | 2823 | 950 | 1000 | 32500 | 70000 |
| 2100/1550 | 2100 | 10.2 | 2328 | 3260 | 900 | 950 | 33500 | 73000 |
*Pilot centrifuges – HX / GMP MODEL
The smaller machines are considered pilot centrifuges and are used for both research and development laboratories, as well as small productions of high-added value products. These machines, while smaller, have the same features as the industrial scale module plus can be skid mounted for easier mobility.