If you're shopping for filtration separation equipment, the first question is what you need to separate. Nitrogen membranes pull nitrogen from compressed air for beverage and industrial systems. A magnetic pickup tool separates ferrous metal from non-metal surfaces. An industrial centrifuge separates liquids from solids in wet materials. The four listings here cover all three jobs, with prices spread more than $2,000 between the least and most expensive options.
Quick Take
The two Green Air nitrogen membrane listings are described as used and follow the same spec: 45 inches long, 6-8 inches wide, about 30 lbs, and a 200 PSI rating. They were originally part of a large draught beer nitrogen system. The ASR Outdoor magnetic pickup tool is the only new handheld option and is aimed at metal cleanup rather than gas or liquid separation. The HayWHNKN 220V industrial centrifuge is the listing for solid-liquid separation and dehydration tasks, and it carries the highest listed price.
Price Comparison
| Product | Listed Price | Price Bar |
|---|---|---|
| Nitrogen Membrane Separator Medical/Industrial/Processors/Beverage | USD 1,500.00 | |
| Nitrogen Membrane Separator Medical/Industrial/Processors/Beverage | USD 800.00 | |
| Magnetic Separator Pick Up Tool l Industrial Quality 16 lbs Quick Release Handle | USD 16.99 | |
| 220V Industrial Centrifuge Separator Machine Biomass Oil Extraction Dryer | USD 2,284.36 |
Decision Matrix
- If you need nitrogen gas for a draught beer system or other process, the Green Air nitrogen membrane is the relevant listing. The table shows two listed prices for the same described membrane; the lower one is more economical unless something about the higher listing matters to you in a way the description does not specify.
- If you need to clean up metal scraps like nails, screws, pins, or staples, the ASR Outdoor magnetic separator pickup tool is a handheld choice that holds up to 16 lbs.
- If you need to dry, dewater, or degrease small parts, metal filings, or biomass oil, the HayWHNKN 220V centrifuge offers a stainless steel barrel, 55LB capacity, and 960rpm drum speed.
Product Notes
Nitrogen Membrane Separator Medical/Industrial/Processors/Beverage (USD 1,500)
This listing describes a used Green Air nitrogen membrane rated at 200 PSI and measuring about 45 inches long, 6-8 inches wide, and 30 lbs. According to the description, it was removed from a high-demand draught beer system, and it is for the nitrogen membrane only, not the compressor or tanks. If your project involves separating nitrogen for medical, industrial, processor, or beverage use, this membrane fits that space. The limitation is that the same described membrane appears elsewhere at a lower listed price, so this listing is hard to justify unless you have a specific reason to choose it. The used condition is also a consideration.
Nitrogen Membrane Separator Medical/Industrial/Processors/Beverage (USD 800)
This listing matches the other Green Air nitrogen membrane: used, 200 PSI rating, 45 inches long, 6-8 inches wide, about 30 lbs, and previously attached to a Green Air compressor in a draught beer system. It is also membrane-only, so you need to have or acquire the rest of the nitrogen generation setup. The clear advantage is the listed price: USD 800 is lower than the USD 1,500 listing for the same described membrane. For shoppers who are comfortable with the used condition and the membrane-only limitation, this is the more cost-conscious listing.
Magnetic Separator Pick Up Tool l Industrial Quality 16 lbs Quick Release Handle
This new ASR Outdoor magnetic pickup tool is a simple way to separate magnetic metal pieces from non-metal surfaces. The quick release handle lets you drop collected materials into a trash or storage bin, and the listed pickup strength is 16 lbs. It comes in black with a stainless steel construction and has a model number of MSPUT. The limitation is scope: it only separates ferrous metal and has no role in gas or liquid separation. For workshop cleanup, it is a straightforward handheld option.
220V Industrial Centrifuge Separator Machine Biomass Oil Extraction Dryer
This new HayWHNKN centrifuge is the high-capacity listing for solid-liquid separation. The description specifies a 2HP (1500W) motor running on AC220V/60Hz three-phase power, a 55LB (25kg) maximum load, a stainless steel barrel, and a 960rpm drum speed. It is described for dehydrating textiles, clothing, food, hardware, chemical raw materials, and latex products, and for degreasing small metal parts and metal filings. The limitation is the power requirement: you need a three-phase 220V supply, and the package size is listed at roughly 43" by 34" by 31", so space and electrical setup matter.
Final Recommendation by Use Case
For metal cleanup, the ASR Outdoor Magnetic Separator Pick Up Tool is the practical option at the bottom of the price table. For nitrogen separation, the Green Air nitrogen membrane at the lower listed price makes more sense than the identical described membrane at the higher price. For solid-liquid separation and dehydration at industrial scale, the HayWHNKN 220V Industrial Centrifuge is the listing that matches that workload, assuming you have the right power supply.
