Macherey-Nagel folded filter paper, type MN 617, qualitative, fast-filtering (Ø 55–500 mm), 400 mm
€133.60
% Manufacturer's RRP: €167.00 20% below manufacturer's RRP
- MN 617 rapid-filtration folded filter paper from Macherey-Nagel for qualitative laboratory analysis
- The ready-to-use, pre-pleated design multiplies the surface area and noticeably saves working time
- A short filtration time of approx. 9 seconds speeds up routine filtrations and high-throughput processes
- Binder-free non-woven fabric made from pure cellulose reliably protects the filtrate from extractives throughout the process
- A scalable range of sizes from 55 mm to 500 mm in diameter caters for all funnel and analysis sizes
Product information "Macherey-Nagel folded filter paper, type MN 617, qualitative, fast-filtering (Ø 55–500 mm), 400 mm"
Macherey-Nagel MN 617 folded filter papers represent a system solution optimised in terms of materials science and highly efficient in terms of geometry, designed for rapid clarification, coarse particle separation and general sample preparation in day-to-day laboratory work. Available in an extremely wide range of diameters, from 55 mm for small-scale analytical batches up to large-area 500 mm filters for high-volume separation processes, this filter series caters for every scale of modern laboratory processes. For routine filtration in food analysis, environmental chemistry or industrial quality control, the structural purity and fibre stability of the filter paper are the primary criteria for clarifying media in a way that is gentle on the material, contamination-free and process-reliable.
Maximum filtration speed thanks to pre-pleated geometry
The design and fluid-mechanical foundation of this series lies in its ready-to-use pleated structure. Unlike traditional filter paper circles, which must first be laboriously folded twice before being inserted into the funnel, the pre-formed pleat pattern multiplies the effective filtration surface area. This leads to a drastic reduction in filtration times during daily high-throughput operation. With a standardised filtration speed of approx. 9 seconds according to the manufacturer’s specification, the MN 617 grade enables an extremely rapid liquid throughput. Flow resistance is minimised, thereby gently reducing unwanted blocking effects in viscous or particle-rich sample flows.
High wet tear strength and the purest raw material base
From a materials science perspective, the MN 617 grade is based on refined pulp and high-quality linters, which are processed entirely free from chemical binders or additives. The smooth surface structure ensures a homogeneous non-woven fabric that exhibits excellent inherent mechanical stability. Thanks to optimised fibre entanglement, the filters possess remarkable wet tear strength. They withstand the fluid-mechanical pressure during funnel filtration without damage and do not tend to release fibres into the filtrate. With a typical ash content of approximately 0.1 %, the paper is perfectly suited to qualitative analytical procedures where ash-free incineration is not strictly required.
Cost-effective routine use
The infrastructural validity of the MN 617 folded filter papers is demonstrated by their reliability in recurring routine tasks. As the filters are supplied pre-pleated and ready for use, laboratory staff save valuable working time whilst simultaneously minimising the risk of contamination from manual folding. For laboratory managers and quality management officers in regulated B2B environments, Macherey-Nagel’s range provides a basis for recurring test processes in GLP environments.
Technical details
Material science & filter structure
- Filter type: qualitative filter paper / folded filter paper (pre-configured and ready for use)
- Grade / Quality level: MN 617
- Material basis: Refined alpha-cellulose and the purest linters
- Binder status: 100 % binder-free (free from chemical additives)
- Surface structure: Smooth
- Filtration properties: Fast filtration (open-pored structure for coarse precipitates)
- Filtration speed: approx. 9 seconds (standardised according to manufacturer’s specifications)
- Ash content: approx. 0.1 % (qualitative classification)
Physical properties & dimensions
- Grammage: approx. 85 grams per square metre (85 g/m²)
- Filter thickness: approx. 0.22 mm (millimetres)
- Available diameter range: 55 mm to 500 mm
- Diameter variants in the range: 55, 70, 90, 110, 125, 150, 185, 240, 270, 320, 385, 400, 450, 500 mm
Resistance & compliance
- Chemical resistance: Inert to mild acids, alkalis and a wide range of organic solvents
- Wet tear strength: High (structurally stable under liquid load)
- Quality management: Supports standardised, reproducible routine filtration processes in GLP environments
Scope of delivery
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1 x pack of Macherey-Nagel folded filter papers, grade MN 617, qualitative and fast-filtering (standard contents: 100 pieces per box) in the diameter selected by the customer (55 mm to 500 mm).
Individual requirements & accessories
To ensure the optimal integration of Macherey-Nagel folded filter papers into your daily laboratory routine, we offer a comprehensive range of complementary accessories. For traditional gravity filtration, we offer chemically highly resistant glass funnels (60-degree angle) made from borosilicate glass, as well as matching Erlenmeyer flasks and laboratory beakers for collecting the filtrate. For contamination-free and precise handling of the sensitive filter elements, we recommend flat-tipped filter tweezers made from high-alloy stainless steel. For structured filtration series, we also offer robust funnel stands and boss heads. Please make use of our technical procurement service to design your analytical infrastructure to suit your specific needs.
| Diameter: | 400 mm |
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