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SER 148 Series - Solvent Extractors

Safe and convenient semi-automated extraction system suitable for fat extraction and sample preparation in a wide range of applications in food, feed, environmental and other industrial segments.
SER 148/3 F30300240
SER 148/3 F30310240
SER 148/6 F30300242
SER 148/6 F30310242

The reliable solution for solvent extraction

The reliable solution for solvent extraction

The SER 148/3 and SER 148/6 can be used to separate a substance or a group of elements from solid and semi-solid samples according to the Randall technique (consisting of Immersion, washing and solvent Recovery).

As for the automatic version SER 158, the main field of application is the determination of the content of soluble products such as fats, detergents, plasticizers and pesticides in food, animal feeds, detergents, rubber and plastic formulas, pharmaceutical products, soil.

The SER 148 Series is a semi-automatic solution with no compromises on operator safety (IP55) and solvent consumption also guaranteeing a limited cost per analysis.

Combined to HU6 Hydrolysis Unit, is possible to use the same crucibles to prevent any possible sample loss between the two units.

Randall Method, Faster Results

Randall Method, Faster Results

Perform single or multiple solvent extractions with Randall method, an improvement of Soxhlet technique, as hot solvents are used to speed up the analysis. In fact, the fast solubilization made by hot solvent permits a considerable reduction of the extraction time (approx. 90 minutes).

The extraction is made by immersion of the sample in the boiling  solvent, followed by a rinsing phase with cold solvent.

Maximum reproducibility is ensured, as well as a high recovery rate of the solvent used.

SER Series can be used with a wide range of sample types and with a variety of solvents, for increased flexibility. 


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A wide range of accessories and consumables

A wide range of accessories and consumables
The SER 148 semi-automatic solvent extractor is equipped with a wide range of accessories designed to make its daily use as easy as possible and guarantee a high versatility of use.

Choose your preferred size of glasses and thimbles as well as gaskets made of high-quality materials that can be adapted to any application, as in the case of the high-quality Vaflon, which is suitable for a very wide range of solvents.

In addition to the standard accessories, the SER 148 extractor has several optional accessories to satisfy every need and guarantee the execution of the analysis in maximum safety.


Number of samples: SER 148/3 3 positions
SER 148/6 6 positions
2 Displays: working temperature / settable parameters
Reproducibility (RSD): ≤ 1%
Solvent recovery: from 50 to 75%
Max volume extraction cup: 150 ml
Number of programs: 29
Working temperature: from 100 to 260 °C
Cooling water: 2 l/min
Sample quantity: from 0,5 to 15 g (generally 2-3 g)
Solvent volume: from 30 to 100 ml
Immersion time: from 0 to 999 minutes
Washing time: from 0 to 999 minutes
Recovery time: from 0 to 999 minutes
Construction material: epoxy painted stainless steel structure
Dimensions (WxHxD): SER 148/3 480x620x390 mm (18.9x24.4x15.4 in)
SER 148/6 700x620x390 mm (27.6x24.4x15.4 in)
Weight: SER 148/3 30 Kg (66 lb)
SER 148/6 40 Kg (88 lb)
Power: SER 148/3 500 W
SER 148/6 950 W

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Comparison tables

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Application notes

Choose among a comprehensive library of Application Notes / White Papers and learn more on how to optimize the performance of your VELP instruments. These documents offer typical analyses of well-known samples, together with official references and suggestions, to make you an expert!


Our compliance to statutory rules and regulations worldwide.
With the CE mark, VELP Scientifica declares that the products are designed and manufactured in compliance with the essential safety requirements of the European Directive on Safety.
The Certification Body (CB) Certificate is an international program created by the IECEE for the acceptance of product safety test results among participating laboratories and certification organizations around the world.
The cNEMKOus mark ensures this product is designed and manufactured in compliance with the International Directive on Safety IEC/EN 61010-1. The cNEMKOus mark has the same legal status as any other NRTL/SCC accredited marks, for U.S. and Canada.


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