Used Specialty Centrifuges
Specialty centrifuges address separation challenges that standard basket, disc, or decanter designs cannot handle efficiently. Peeler centrifuges use a rotating knife to discharge solids while the basket spins, enabling rapid cycle times. Pusher centrifuges continuously convey solids using a reciprocating pusher plate. Inverting filter centrifuges invert the filter basket to discharge product without mechanical scraping, preserving crystal structure. High-speed tubular centrifuges achieve extreme G-forces for fine particle and cell separation.
Federal Equipment Company stocks used specialty centrifuges from manufacturers including KraussMaffei, Heinkel, Carr, Dorr-Oliver, Comi Condor, CINC Industries, and Beckman Coulter. Our inventory includes peeler centrifuges, pusher centrifuges, inverting filter centrifuges, Powerfuge high-speed centrifuges, single-use centrifugation systems, and liquid-liquid extraction centrifuges.
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Specialty centrifuges serve applications where standard centrifuge designs face limitations. Peeler centrifuges combine high-speed separation with rapid mechanical discharge, using a peeling knife or plow that traverses the filter cake while the basket rotates. This approach achieves short cycle times while handling crystalline or granular solids. Pusher centrifuges use a hydraulically or mechanically driven pusher plate to continuously advance solids along the basket, enabling uninterrupted operation for high-throughput applications.
Inverting filter centrifuges address containment and product quality requirements by inverting the entire filter assembly to discharge solids. This eliminates mechanical contact with the product, preserving particle integrity for sensitive crystalline materials. High-speed tubular and Powerfuge centrifuges achieve G-forces up to 20,000 G’s for separating fine particles, cells, and subcellular components. Liquid-liquid extraction centrifuges provide continuous countercurrent extraction for pharmaceutical and chemical purification.
Federal Equipment Company stocks specialty centrifuges from manufacturers including KraussMaffei, Heinkel, Carr, Dorr-Oliver, Comi Condor, CINC Industries, and Beckman Coulter. Our inventory spans from pilot-scale units to full-production machines. We offer inspection, refurbishment, and testing services to verify equipment condition before delivery.
Applications & Industries
- API crystallization and isolation in pharmaceutical manufacturing
- Fine chemical and intermediate purification in chemical processing
- Cell harvesting and clarification in biotechnology operations
- Continuous countercurrent extraction for purification processes
- Crystalline product handling requiring particle integrity preservation
- High-containment separation for potent compounds
- Pilot-scale process development and scale-up studies
- Laboratory sample preparation and analytical separations
Specifications & Configurations
Peeler Centrifuges:
- Horizontal and vertical configurations
- Basket diameters from 630mm (24") to 1,250mm (49")
- Bowl speeds from 1,320 to 2,100 RPM
- Load capacities from 42 kg to 500 kg
- Hydraulic basket and plow drives
- Auger or plow discharge mechanisms
Pusher Centrifuges:
- Single and multi-stage designs
- Basket diameters from 12" (305mm) to 24" (600mm)
- Bowl speeds from 1,640 to 3,200 RPM
- Material densities up to 1,300 kg/cu meter
- Reciprocating and oscillating pusher mechanisms
- Hydraulic pusher drives from 25 to 33 HP
Inverting Filter Centrifuges:
- Bowl diameters from 300mm (12") to 1,000mm (39")
- Bowl speeds from 1,600 to 3,464 RPM
- G-forces from 1,138 to 1,500 G’s
- Bowl capacities from 6.5 to 149 liters
- Full containment with nitrogen purge capability
- PAC-system automation for pharmaceutical applications
High-Speed and Powerfuge Centrifuges:
- Bowl speeds from 6,200 to 15,432 RPM
- G-forces from 3,003 to 20,000 G’s
- Bowl volumes from 1.1 to 28 liters
- Flow rates from 0.1 to 500 liters per hour
- Continuous flow and batch configurations
- Single-use and cleanable designs
Materials of Construction:
- 316 and 316L stainless steel for standard applications
- Hastelloy C4, C22, and C-276 for corrosive environments
- Duplex stainless steel for high-strength requirements
- Titanium (Ti-6AL-4V) for specialized pharmaceutical applications
Liquid-Liquid Extraction Centrifuges:
- Rotor diameters from 5cm to larger production scales
- Throughput up to 0.53 GPM per stage
- Multi-stage countercurrent configurations
- Bowl speeds up to 6,000 RPM
Why Buy Used Specialty Centrifuges
Used specialty centrifuges offer significant cost advantages compared to new equipment. Savings typically range from 40% to 70% off new equipment pricing, depending on age, condition, and configuration. Lead times for used equipment are measured in days or weeks rather than the months often required for new specialty centrifuge orders.
Federal Equipment Company inspects all specialty centrifuges for basket condition, drive system function, seal integrity, and control operation. We can provide refurbishment services, including basket rebuilding, hydraulic system overhaul, seal replacement, and control system upgrades. Testing services verify cycle performance and containment integrity before shipment.
