Laboratory Filtration Systems
Clarifying a liquid, sterilising a buffer or recovering particles all come down to pushing fluid through the right membrane, and laboratory filtration systems make that controlled and repeatable. Vacuum and pressure rigs, membrane holders and tangential flow units cover everything from clearing a lysate to concentrating a protein. Buyers weigh the membrane area, the pore size and whether the format suits their volume and cleanliness needs. New and used filtration systems appear here, with listings that describe holder type and membrane compatibility. These rigs feature within Sample Preparation, Separation and Processing here. Contact the seller to confirm the rig suits your membranes and volumes.
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Laboratory Filtration System Types
Filtration systems vary by how they drive the fluid and by the membrane format they hold. The variants suit clarification, sterile filtration and concentration.
Vacuum filtration systems
Rigs that pull liquid through a membrane under vacuum for clarification and sterile filtration. They suit bench volumes of buffers and media.
Pressure filtration holders
Sealed holders that push fluid through a membrane under pressure. They handle viscous or larger volumes that vacuum cannot draw quickly.
Tangential flow filtration units
Systems that flow fluid across a membrane to concentrate and diafilter without clogging. They suit protein concentration and buffer exchange.
Membrane and cartridge housings
Housings that hold flat sheet, capsule or cartridge filters inline. They integrate filtration into a process or transfer line.
Latest Laboratory Filtration Systems Listings
Why Choose Machinery Masters
Verified Sellers Only
Every seller is verified before a single listing goes live. Machinery Masters also reviews listings for accuracy, so buyers can commit to high value machinery with confidence.
Global Reach
Listings come from sellers across Europe, North America, and beyond. That reach widens the options past any regional dealer network, and it is often the only way to find discontinued models in good condition.
Flexible Financing Options
Qualifying listings carry financing through partner providers. Terms are shown directly on eligible product pages, spreading the cost instead of draining working capital in one hit.
Direct Seller Contact
No broker sits between the buyer and the seller. Ask about service history, arrange inspections, and negotiate directly with the person who actually knows the machine.
Applications and Uses
Filtration systems clarify, sterilise and concentrate liquids across the lab and pilot plant. These are the common settings.
Sterile filtration of media
Passing buffers and media through a sterilising grade membrane to remove microbes. This prepares fluids for cell culture and aseptic work.
Lysate and sample clarification
Removing cells and debris from a lysate before purification or analysis. Clear feed protects columns and downstream instruments.
Protein concentration and diafiltration
Concentrating a protein and exchanging its buffer using tangential flow. The crossflow avoids the fouling that dead end filtration suffers.
Particle recovery and testing
Capturing particles and microbes on a membrane for counting or culture. The retained material supports quality and contamination testing.
Benefits from Machinery Masters
Laboratory filtration systems here span vacuum, pressure and crossflow formats, each listed with its holder detail.
Filtration formats gathered in one category
Vacuum, pressure and tangential flow systems are grouped for comparison, so you can match the format to your volume and membrane.
Reconditioned rigs that ease the outlay
A serviced filtration system with sound seals and holders performs for less than new, and the saving covers membranes, cartridges and spare seals.
Membrane and volume confirmed with the seller
You confirm the membrane format and holder area suit your work before buying, keeping the system aligned with your filters and volumes.
Frequently Asked Questions About Laboratory Filtration Systems
The choice follows the volume, the fluid and the goal of the step. Vacuum suits clarifying and sterilising modest bench volumes, pressure handles viscous or larger loads, and tangential flow concentrates proteins without clogging. Dead end methods filter to waste or capture, while crossflow recirculates to concentrate. Describe your volume and aim to the seller so they can confirm the right format.
Pore size sets what the membrane removes, from clarifying grades that catch cells and debris to sterilising grades that retain microbes. The membrane material must also resist your fluid without leaching or binding your target. Match both to the step you are doing. Ask the seller which membranes the holder accepts so the right grade and material fit.
Check the holder seals, the vessel integrity and any pump or gauge that comes with the rig. Worn seals leak and let unfiltered fluid bypass the membrane, which defeats the step. For tangential flow, ask about the pump and the condition of any installed membrane cassette. A rig with sound seals and a clear history is ready to use.
Tangential flow filtration concentrates proteins gently because the fluid flows across the membrane rather than being forced through it, which limits fouling and shear. Choosing the right membrane cut off retains your protein while letting buffer and small molecules pass. Run at a moderate pressure to protect fragile targets. The seller can confirm the membrane cut off and the pump on the listed system.
You deal with the seller straight through the listing, without a go between, arranging the sale and any inspection. Ask for photos of the holders and seals and a video of the rig running if it helps. Filtration sellers are vetted, which reinforces the exchange. Settle the terms before finalising the filtration purchase.