Floor model centrifuge

Introduction

A floor model centrifuge is a large and a high-capacity centrifuge, designed to be placed on the floor, used for the centrifugation of the large volumes of the samples, and it is used in the laboratories, the blood banks, the biotechnology, and the many other applications. The floor model centrifuge consists of a large rotor or the rotors, a powerful motor, a refrigerated chamber in some models, a lid with the safety lock, a control and a display, and a robust frame, and it operates at the high speeds, with the large sample capacities, and it is used for the centrifugation of the blood bags, the large bottles and the flasks, the multiple tubes and the plates, and the large volumes of the samples; the floor model centrifuge is used for the separation of the blood components, for the large-scale cell harvesting, for the clarification of the large volumes, for the pelleting, for the separation of the phases, and for many other applications, and it provides features such as the programmable cycles, the refrigeration, the imbalance detection, and the safety interlocks; the floor model centrifuge is available in various capacities and configurations, from the general-purpose models to the refrigerated and the high-speed models, and it is an essential equipment for the large-volume centrifugation. Floor model centrifuges are used in the clinical laboratories, in the blood banks, in the biotechnology and the pharmaceutical industry, in the research institutions, and for many other applications. With their high capacity, floor model centrifuges are essential for the large-volume centrifugation.

Floor Model Centrifuge LFMC-T2013

Floor Model Centrifuge offers a maximum of 6080×g, allowing effective separation of various sample types. It maintains a low noise level of ≤55 dB(A), creating a quiet and safe lab env...

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Floor Model Centrifuge LFMC-T2012

Floor model Centrifuge reaches a maximum speed of 8000 rpm for rapid separation. It supports a capacity of 6 × 2400 mL, accommodating 12 × 500 mL blood bags for efficient blood process...

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Floor Model Centrifuge LFMC-T2010

Floor Model Centrifuge supports both angle and swing rotors, offering a maximum speed of 9000 rpm for the angle rotor and 4500 rpm for the swing rotor. The construction of the centrifuge...

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Standards

IEC 61010-2-020:2016-Particular requirements for laboratory centrifuges

Complies with the above standards, but is not limited to them.

Features

1. Floor model centrifuge for high-capacity, high-speed or high-volume centrifugation in laboratory and industrial settings.

2. Large-capacity floor-standing centrifuge with powerful drive, multiple rotors and refrigeration for batch processing.

3. Suitable for biotechnology, pharmaceutical, clinical, blood bank, industrial, research and university laboratories.

4. Includes centrifuge body, drive motor, rotor (swinging bucket or fixed-angle), chamber, controls, cooling and manual.

5. Supports high-volume centrifugation of blood, cell cultures, biological samples, chemicals and industrial materials.

FAQ

Q1: What testing scenarios is this centrifuge mainly applied to?

A: The floor model centrifuge is used in biotechnology, pharmaceutical production, clinical laboratories, blood banks, industrial processing, research universities, and environmental laboratories to perform high-capacity, high-speed or high-volume centrifugation (separation of components by density using centrifugal force) for batch processing of large sample volumes that exceed benchtop centrifuge capacity, with options for refrigeration, multiple rotors, and high g-force. It supports biotechnology and biopharma (cell culture harvesting (mammalian cell suspension (CHO, HEK293), bacterial cultures (E. coli, yeast) - pellet cells at 3000-8000 x g for downstream processing (protein expression, DNA/RNA extraction), large-volume cell culture (1-6 L bottles), blood processing (blood banks: separation of whole blood into red blood cells, plasma, platelets, buffy coat using swinging bucket rotors at low speed (2000-5000 x g); therapeutic plasmapheresis, component manufacturing), clinical (urine sediment, stool samples, sputum, clinical chemistry (serum/plasma separation from large batches), pharmaceutical (API separation, fermentation broth clarification, particle separation, quality control testing), industrial (chemical processing, oil/water separation, food and beverage (wine, beer, juice clarification, dairy processing), environmental (water/wastewater sample concentration (microorganisms, particulates), soil extracts), and research (ultracentrifugation is separate (this is floor model high-speed, not ultra - typically max 10,000-30,000 RPM, 10,000-100,000 x g depending on model; for subcellular organelles, proteins, viruses use ultracentrifuge), large-volume DNA/RNA prep, protein purification, density gradient centrifugation).

Q2: What standards does the centrifuge comply with?

A: The floor model centrifuge follows relevant IEC, ISO, ASTM and GB/T standards including IEC 61010 (safety requirements for electrical laboratory equipment), IEC 61326 (EMC), ISO 19728 (centrifuges - safety requirements), applicable clinical standards (if for blood/IVD use: FDA, CE IVD, NMPA), and GB/T standards for centrifuges. For blood bank/medical use, comply with medical device regulations and blood safety standards (AABB, FDA). Calibration includes speed (RPM/RCF) verification with tachometer, timer accuracy, temperature calibration (if refrigerated), and rotor integrity inspection. For GMP/pharma, follow equipment qualification (IQ/OQ/PQ), calibration schedules, and 21 CFR Part 11 if electronic records. Centrifuges are safety-critical equipment (rotor failure is catastrophic) - comply with rotor maintenance/retirement schedules per manufacturer.

Q3: What is the warranty period for the whole centrifuge and key components?

A: The whole floor model centrifuge is covered by a 12-24 month warranty. The drive motor, chamber, refrigeration system (if equipped), controller, and housing are covered, while rotors (wear part - have finite lifespan/retirement date per manufacturer (typically 5-10 years or specified number of runs; rotor fatigue is critical safety issue), buckets/adapters (wear), seals/gaskets, and fuses are consumables/accessories. Damage from improper use, rotor overload (exceeding max load/RPM - catastrophic rotor failure risk), running unbalanced (vibration, damage - modern centrifuges detect imbalance and shut off, but severe imbalance can damage), liquid spillage in chamber (corrosion - clean promptly; use sealed buckets), rotor drop/impact (aluminum rotors can be damaged by dropping - inspect before use), exceeding rotor retirement date (fatigue failure), or unauthorized repair is excluded. Extended warranty and service contracts (preventive maintenance, rotor inspection, calibration) are strongly recommended for floor model centrifuges (high-value, safety-critical). Drive motors last 10-20 years; rotors must be retired per manufacturer schedule (do not use beyond retirement date - fatigue failure).

Q4: Is this device difficult to operate? Is professional training required?

A: Operation requires trained laboratory personnel (centrifuges are safety-critical - rotor failure can be catastrophic). We provide operation manuals, installation, and training. Proper setup (place on stable, level floor (floor models are heavy (100-500 kg) - ensure floor can support weight; level with built-in feet; do not place on weak/raised surface), ensure adequate clearance (for ventilation, door opening, rotor loading; refrigerated models dissipate heat - do not block vents), connect power (dedicated circuit, high amperage for large motors; proper grounding), install appropriate rotor (swinging bucket (for blood, cell culture, large volumes - lower RCF, larger volume; buckets swing out during run) or fixed-angle (for higher RCF, pelleting, smaller volumes; more compact); ensure rotor is properly seated and locked on drive shaft (critical - loose rotor causes catastrophic failure; follow manufacturer rotor installation procedure), inspect rotor before each use (check for cracks, corrosion, pitting, discoloration (especially aluminum rotors - salt/corrosive samples cause stress corrosion cracking; if any damage, DO NOT use - retire rotor; record rotor usage (runs, RCF, hours) per manufacturer retirement schedule), sample loading (balance samples precisely (within 0.1-0.5 g of each other for high-speed runs; use balance; load symmetrically (opposite buckets/tubes equal weight; for odd number, use blank tube with water of equal weight); ensure tubes are rated for RCF (glass tubes can break at high RCF - use plastic (PP, PC) or thick glass; seal tubes tightly (prevent leakage, aerosolization); use proper adapters/buckets for tube size), close chamber door (ensure door is locked/closed before start - modern units have door interlock; do not override), set parameters (set speed (RPM or RCF/x g - RCF depends on rotor radius: RCF = 1.118 x 10^-5 x r(cm) x RPM^2; use RCF for reproducibility across rotors), time (1 min to hours; set acceleration/deceleration rates (for sensitive samples (cells, blood), use slow acceleration/deceleration to prevent resuspension/disturbance), temperature (if refrigerated: set 4 degrees C for cells/enzymes, 20-25 for room temp; allow chamber to pre-cool before loading), start run (verify no unusual noise/vibration during acceleration; if excessive vibration or noise, stop immediately (imbalance, rotor issue); do not leave unattended during acceleration (most dangerous phase), during run (do not open door (interlock prevents; do not touch centrifuge; monitor for unusual noise), after run (wait for complete stop before opening door (do not use brake to stop early unless emergency; modern units have dynamic brake), remove samples carefully (check for leaks, tube breakage; if tube broke, follow decontamination procedure (aerosolized biohazard - allow chamber to settle, use PPE, disinfect per biosafety protocol), clean rotor/chamber (remove rotor, clean with mild detergent/water, dry thoroughly (especially aluminum rotors - moisture causes corrosion; do not use harsh/abrasive cleaners), maintenance (daily: clean chamber/rotor after use, inspect rotor, check door seal; weekly: clean exterior, check vents, lubricate per manufacturer; monthly: speed calibration (tachometer), timer, temperature (if refrigerated), rotor inspection; semi-annually/annually: professional preventive maintenance (motor, bearings, seals, refrigeration, rotor integrity testing (eddy current or dye penetrant for aluminum rotors per manufacturer), troubleshooting (imbalance error (samples not balanced, rotor not seated, damaged bucket - rebalance, reseat rotor, inspect/replace bucket), excessive noise/vibration (unbalanced load, worn bearings, damaged rotor, foreign object in chamber - stop, investigate, service), speed not reaching set point (motor issue, overloaded rotor, voltage problem - service), temperature not reaching (if refrigerated: door left open, overloaded, refrigerant leak, compressor failing - check, service), rotor corrosion/cracks (retire rotor immediately - do not use; replace), door not locking (interlock issue, door misalignment - service), and safety (ROTOR FAILURE HAZARD (centrifuge rotors store enormous kinetic energy (at 20,000 RPM, a rotor can have explosive energy equivalent to a grenade); rotor failure due to fatigue, corrosion, overload, or exceeding retirement date is catastrophic - can destroy centrifuge and injure personnel; ALWAYS: inspect rotor before use, do not exceed max RCF/load, balance samples, retire rotors per manufacturer schedule, do not use damaged/corroded rotors), biological hazard (if centrifuging infectious samples (blood, bacteria, viruses), use sealed buckets/rotors (biosafety rotors) to contain aerosols; decontaminate after spills; follow biosafety protocols (BMBL, WHO); if tube breaks, do not open chamber immediately (allow aerosols to settle 15-30 min), wear PPE, disinfect), chemical hazard (corrosive samples (salts, acids) damage aluminum rotors - use titanium rotors or sealed adapters; clean immediately; flammable solvents (use explosion-proof centrifuge or fume hood; ensure ventilation), high voltage (proper grounding, lockout/tagout for maintenance), moving parts (do not reach into chamber while running; door interlock), noise (high-speed centrifuges can be loud - hearing protection if >85 dB), ergonomics (heavy rotors (10-30 kg) - use proper lifting, rotor loading tools; floor models require bending to load - use step stool if needed) are CRITICAL for safe centrifugation.

Q5: What is the typical lead-time for order delivery?

A: Standard models require 7-30 working days. In-stock units can ship within 3-7 working days. Custom configurations or large built-to-order systems may require additional time, and we confirm the exact schedule before order confirmation.

Q6: Is regular calibration required? What is the recommended calibration cycle?

A: Speed (RPM/RCF) calibration recommended every 6-12 months using calibrated tachometer (verify at multiple set points; accuracy typically +/- 1-2% for modern centrifuges; RCF calculation depends on rotor radius - verify rotor radius). Timer accuracy every 6-12 months. Temperature calibration (if refrigerated) every 6-12 months with certified thermometer (verify at set points (4, 20, 37 degrees C); accuracy +/- 1-2 degrees C typical). ROTOR INSPECTION is critical and more frequent: - Before each use: visual inspection for cracks, corrosion, pitting, discoloration. - Every 3-6 months: detailed inspection (clean, examine under magnification if needed). - Annually or per manufacturer: rotor integrity testing (eddy current testing for aluminum rotors to detect fatigue cracks; dye penetrant testing). - Rotor retirement: Per manufacturer schedule (typically 5-10 years from first use, or specified number of runs/hours at max RCF; DO NOT use beyond retirement date - mark rotor with retirement date; record usage log). For GMP/pharma/clinical, follow equipment maintenance schedules and maintain records (calibration certificates, rotor inspection logs, usage logs, maintenance records). Full preventive maintenance annually by qualified technician (motor, bearings, seals, refrigeration, door interlock, imbalance detection). Floor model centrifuges are safety-critical - regular calibration and rotor inspection prevent catastrophic failure and ensure separation reproducibility.

Q7: Are supporting consumables universal?

A: Rotors (swinging bucket, fixed-angle, continuous flow - specific to centrifuge model (drive shaft interface, max speed/volume; rotors are NOT universal - must be manufacturer-approved for the centrifuge model; using wrong rotor is dangerous), buckets/adapters (for swinging bucket rotors - specific to rotor and tube size (15 mL, 50 mL, 250 mL, 1 L bottles; various adapters)), seals/gaskets (for sealed/biosafety rotors - specific), tubes/bottles (centrifuge tubes (15 mL, 50 mL conical, 250 mL, 1 L bottles - must be RCF-rated; plastic (PP, PC) or glass; available from lab supply (Corning, Falcon, Nalgene) - relatively universal if size/RCF rating matches), power cord, and cleaning supplies are available from laboratory supply companies, though rotors, buckets, and adapters are centrifuge/rotor-specific (use OEM or manufacturer-approved only - using non-approved rotors is a safety hazard and voids warranty). Long-term consumable cost includes rotor replacement (periodic per retirement schedule - expensive, $5000-$20000+), buckets/adapters, and tubes (per run).

Q8: Can I customize parameters or supporting accessories?

A: Customization includes max speed/RCF (low-speed (3000-6000 RPM, 3000-7000 x g - for blood, cell culture, clinical; large volume), high-speed (10,000-30,000 RPM, 10,000-100,000 x g - for bacteria, subcellular, protein; floor model high-speed), ultra-high-speed (>30,000 RPM - this approaches ultracentrifuge; floor models typically max ~25,000-30,000 RPM), refrigeration (non-refrigerated (room temp - lower cost, for routine) or refrigerated (-20 to 40 degrees C - for cells, enzymes, proteins; essential for biological samples; most floor models are refrigerated)), rotor type (swinging bucket (large volume, low RCF, for blood/cell culture/gradients), fixed-angle (high RCF, pelleting, smaller volume), continuous flow (for very large volumes (10-100+ L) - industrial/bioprocessing), elutriation rotor (cell separation by size), zonal rotor (density gradient, virus/organelles)), capacity (small floor (4 x 250 mL to 6 x 500 mL), medium (4 x 1 L to 6 x 1 L), large (4 x 2 L to 6 x 2 L, or continuous flow for 100+ L)), control (analog (simple) or digital (LED display of RPM/RCF/time/temp, memory programs, soft acceleration/deceleration (10+ rates), imbalance detection, automatic rotor recognition, data logging, USB/Ethernet, 21 CFR Part 11 for pharma), construction (stainless steel chamber (corrosion-resistant, easy to clean), powder-coated exterior, insulated chamber (refrigerated), safety features (door interlock, imbalance shutoff, over-speed protection, over-temperature protection, emergency lid release, rotor overspeed protection), biocontainment (sealed rotors/buckets for BSL-2/3 samples (aerosol containment), autoclavable rotors/buckets), explosion-proof (for flammable solvents - ATEX/IECEx rated), accessories (multiple rotors, buckets/adapters (various tube sizes), sealed biosafety buckets, rotor loading tool, calibration certificate (ISO 17025), maintenance contract, certifications (CE, FDA, IVD, ISO 13485, ATEX), language and accessories. Additional rotors, buckets, and adapters can be ordered separately.

Q9: Does the purchase include on-site installation and commissioning service?

A: Standard delivery includes floor model centrifuge, one rotor (sometimes), buckets/adapters (sometimes), power cord, and instruction manual. On-site installation, rotor setup, calibration, and operator training ARE typically included or strongly recommended for floor model centrifuges (heavy, high-power, safety-critical equipment requiring professional installation (uncrating, positioning, leveling, electrical hookup, rotor installation, performance verification, and user training on safety protocols and rotor maintenance; installation by manufacturer or certified technician is standard). For self-installation (not recommended): position, level, plug in (dedicated circuit), install rotor per manual, verify all functions, test with water load. Always verify safety features (imbalance, door interlock, overspeed) before use with samples.

Q10: What types of samples are compatible with this equipment?

A: The floor model centrifuge separates various samples by density including biological samples (blood (whole blood fractionation: RBC, plasma, platelets, buffy coat - swinging bucket, low RCF), cell cultures (mammalian cell suspension (CHO, HEK293, insect cells - pellet at 300-1000 x g; bacterial cultures (E. coli, yeast - pellet at 3000-8000 x g), tissue homogenates), clinical samples (urine sediment, sputum, stool, CSF, serum/plasma separation from large batches), subcellular fractions (nuclei, mitochondria, microsomes - high RCF fixed-angle; note: for ribosomes, viruses, proteins need ultracentrifuge (>100,000 x g)), proteins/DNA/RNA (large-volume preps - pellet debris, clarify lysates), chemicals and industrial (chemical precipitates, oil/water emulsions, suspensions, catalysts, particles), food and beverage (wine/beer/juice clarification (yeast, pulp sedimentation), dairy (cream separation, fat testing), sugar processing), environmental (water/wastewater (concentrate microorganisms (bacteria, protozoa (Giardia, Cryptosporidium), particulates), soil extracts, air filter samples), and other materials requiring density-based separation in large volumes. NOT compatible with: Samples requiring >100,000 x g (viruses, ribosomes, proteins, lipoproteins, nanoparticles - use ultracentrifuge (floor model ultracentrifuge achieves 100,000-800,000 x g; this entry is floor model high-speed, typically <100,000 x g), very small volumes (<1 mL - use benchtop microcentrifuge; floor models are for large volumes), highly corrosive samples in aluminum rotors (use titanium rotors or sealed adapters; clean immediately), flammable/explosive samples (use explosion-proof centrifuge or fume hood; ensure no ignition source), and samples incompatible with centrifugation (e.g., materials that react under pressure, explosive compounds - consult safety data). IMPORTANT: Floor model centrifuge fundamentals and safety: (1) How it works: A motor spins a rotor (containing sample tubes/buckets) at high speed, creating centrifugal force (RCF, relative centrifugal force, measured in x g). Denser components move outward (pellet at bottom of tube/bucket), less dense components stay above (supernatant). RCF = 1.118 x 10^-5 x r(cm) x RPM^2, where r = radius from axis to sample. RCF depends on rotor radius and RPM - always report RCF (x g), not just RPM, for reproducibility. (2) Rotor types: - Swinging bucket: Tubes hang vertically at rest, swing out to horizontal during spin. Good for large volumes, low-to-medium RCF, density gradients, blood separation. Buckets and adapters are interchangeable for different tube sizes. - Fixed-angle: Tubes held at fixed angle (20-45 degrees). Good for high RCF pelleting, smaller volumes, more compact, higher max speed. Pellet forms at side/bottom of tube. - Continuous flow: For very large volumes (10-100+ L), sample flows through spinning rotor, particles deposit on wall, supernatant exits. Used in bioprocessing. (3) Safety - rotor failure is the biggest risk: Centrifuge rotors at high speed store enormous kinetic energy. A rotor failure (due to metal fatigue, corrosion, overload, or exceeding retirement date) can explode, destroying the centrifuge and causing severe injury/death. Critical safety practices: - Inspect rotor before EVERY use (cracks, corrosion, pitting, discoloration). - Never exceed max RCF or max load for rotor. - Balance samples precisely (within 0.1-0.5 g). - Retire rotors per manufacturer schedule (typically 5-10 years; record usage). Aluminum rotors are susceptible to stress corrosion cracking from salt solutions - use titanium for corrosive samples or clean thoroughly. - Use only manufacturer-approved rotors for the centrifuge model. - Ensure rotor is properly seated and locked. - Do not use damaged/corroded rotors. (4) Imbalance: Modern centrifuges have imbalance detectors that shut off if load is unbalanced. But severe imbalance can still cause damage. Always balance tubes (use scale, load symmetrically, use blank for odd number). (5) Biological safety: For infectious samples (blood, bacteria, viruses), use sealed rotors/buckets (biosafety rotors) to contain aerosols if a tube breaks. If tube breaks: - Do not open chamber immediately (allow aerosols to settle 15-30 min). - Wear appropriate PPE (lab coat, gloves, eye protection, respirator if needed). - Follow facility biosafety protocol (BMBL, WHO). - Decontaminate chamber and rotor with appropriate disinfectant. - Document incident. (6) Refrigeration: Most floor model centrifuges are refrigerated (4 degrees C standard) for biological samples (cells, enzymes, proteins degrade at room temp). Pre-cool chamber before loading. Temperature accuracy +/- 1-2 degrees C. (7) Acceleration/deceleration: For sensitive samples (blood, cells, gradients), use slow acceleration/deceleration rates to prevent disturbing pellets or gradients. Modern units have 10+ selectable rates. Fast deceleration can resuspend pellets. (8) Common errors: - Reporting RPM instead of RCF (not reproducible across rotors). - Not balancing samples (imbalance shutdown, damage). - Using wrong tube type (glass breaks at high RCF; use RCF-rated plastic). - Overfilling tubes (leakage, imbalance). - Not sealing tubes (aerosolization, contamination). - Ignoring rotor inspection (safety risk). - Exceeding rotor retirement date (catastrophic failure risk). - Using non-approved rotor (dangerous). - Opening door before complete stop (interlock prevents, but do not override). - Not cleaning after corrosive samples (rotor corrosion, failure). (9) Floor model vs benchtop: Floor models are for large volumes (250 mL to 2 L per tube, total 1-12+ L) and/or high speed (10,000-30,000 RPM). Benchtop models are for smaller volumes (1.5/2 mL microtubes, 15/50 mL conicals, total <1 L) and moderate speed. Choose based on sample volume and required RCF. (10) Maintenance contract: Given the high value and safety risk, a service contract (preventive maintenance, rotor inspection, calibration, emergency response) is strongly recommended for floor model centrifuges. Many facilities require annual rotor integrity testing (eddy current) for aluminum rotors.