Extraction Thimbles

Cellulose and glass fiber thimbles

MACHEREY‑NAGEL manufactures extraction thimbles from top quality raw materials using ultra‑pure water. They are typically used in Soxhlet extraction units, particularly for fat analysis of food, feed and soil contaminants.

Cellulose Extraction Thimbles

MACHEREY‑NAGEL extraction thimbles, made from cellulose, are available in five different types. MN 645 is standard grade for most applications, MN 645 D has a lid against floating of sample, MN 645 F is more dense and MN 645 W is less dense than the standard. MN 645 R is especially made for dust analysis.

MN 645

Standard quality made from cellulose. Perfect for:

Fat determination in food and feed
Determination of binder content in asphalt
Analysis of soil contaminants
Determination of additives in rubber and elastomers

REF	Product Name	Description
645001	Product: Extraction thimble, MN 645, Standard quality, Cellulose, 8 mm x 40 mm	Description: MN 645 extraction thimbles are the standard grade, made from pure cellulose. Height: 40 mm Inner diameter: 8 mm Wall thickness: 1 mm
645002	Product: Extraction thimble, MN 645, Standard quality, Cellulose, 9 mm x 50 mm	Description: MN 645 extraction thimbles are the standard grade, made from pure cellulose. Height: 50 mm Inner diameter: 9 mm Wall thickness: 1 mm
645003	Product: Extraction thimble, MN 645, Standard quality, Cellulose, 15 mm x 50 mm	Description: MN 645 extraction thimbles are the standard grade, made from pure cellulose. Height: 50 mm Inner diameter: 15 mm Wall thickness: 1 mm
645004	Product: Extraction thimble, MN 645, Standard quality, Cellulose, 15 mm x 100 mm	Description: MN 645 extraction thimbles are the standard grade, made from pure cellulose. Height: 100 mm Inner diameter: 15 mm Wall thickness: 1 mm
645005	Product: Extraction thimble, MN 645, Standard quality, Cellulose, 20 mm x 80 mm	Description: MN 645 extraction thimbles are the standard grade, made from pure cellulose. Height: 80 mm Inner diameter: 20 mm Wall thickness: 1.5 mm
645006	Product: Extraction thimble, MN 645, Standard quality, Cellulose, 22 mm x 80 mm	Description: MN 645 extraction thimbles are the standard grade, made from pure cellulose. Height: 80 mm Inner diameter: 22 mm Wall thickness: 1.5 mm
645007	Product: Extraction thimble, MN 645, Standard quality, Cellulose, 23 mm x 90 mm	Description: MN 645 extraction thimbles are the standard grade, made from pure cellulose. Height: 90 mm Inner diameter: 23 mm Wall thickness: 1.5 mm
645008	Product: Extraction thimble, MN 645, Standard quality, Cellulose, 23 mm x 100 mm	Description: MN 645 extraction thimbles are the standard grade, made from pure cellulose. Height: 100 mm Inner diameter: 23 mm Wall thickness: 1.5 mm
645009	Product: Extraction thimble, MN 645, Standard quality, Cellulose, 27 mm x 80 mm	Description: MN 645 extraction thimbles are the standard grade, made from pure cellulose. Height: 80 mm Inner diameter: 27 mm Wall thickness: 1.5 mm
645010	Product: Extraction thimble, MN 645, Standard quality, Cellulose, 27 mm x 100 mm	Description: MN 645 extraction thimbles are the standard grade, made from pure cellulose. Height: 100 mm Inner diameter: 27 mm Wall thickness: 1.5 mm
645011	Product: Extraction thimble, MN 645, Standard quality, Cellulose, 27 mm x 60 mm	Description: MN 645 extraction thimbles are the standard grade, made from pure cellulose. Height: 60 mm Inner diameter: 27 mm Wall thickness: 1.5 mm
645013	Product: Extraction thimble, MN 645, Standard quality, Cellulose, 28 mm x 100 mm	Description: MN 645 extraction thimbles are the standard grade, made from pure cellulose. Height: 100 mm Inner diameter: 28 mm Wall thickness: 1.5 mm
645014	Product: Extraction thimble, MN 645, Standard quality, Cellulose, 28 mm x 120 mm	Description: MN 645 extraction thimbles are the standard grade, made from pure cellulose. Height: 120 mm Inner diameter: 28 mm Wall thickness: 1.5 mm
645015	Product: Extraction thimble, MN 645, Standard quality, Cellulose, 28 mm x 80 mm	Description: MN 645 extraction thimbles are the standard grade, made from pure cellulose. Height: 80 mm Inner diameter: 28 mm Wall thickness: 1.5 mm
645016	Product: Extraction thimble, MN 645, Standard quality, Cellulose, 28 mm x 90 mm	Description: MN 645 extraction thimbles are the standard grade, made from pure cellulose. Height: 90 mm Inner diameter: 28 mm Wall thickness: 1.5 mm
645017	Product: Extraction thimble, MN 645, Standard quality, Cellulose, 29 mm x 100 mm	Description: MN 645 extraction thimbles are the standard grade, made from pure cellulose. Height: 100 mm Inner diameter: 29 mm Wall thickness: 1.5 mm
645018	Product: Extraction thimble, MN 645, Standard quality, Cellulose, 30 mm x 150 mm	Description: MN 645 extraction thimbles are the standard grade, made from pure cellulose. Height: 150 mm Inner diameter: 30 mm Wall thickness: 1.5 mm
645019	Product: Extraction thimble, MN 645, Standard quality, Cellulose, 30 mm x 60 mm	Description: MN 645 extraction thimbles are the standard grade, made from pure cellulose. Height: 60 mm Inner diameter: 30 mm Wall thickness: 1.5 mm
645020	Product: Extraction thimble, MN 645, Standard quality, Cellulose, 30 mm x 80 mm	Description: MN 645 extraction thimbles are the standard grade, made from pure cellulose. Height: 80 mm Inner diameter: 30 mm Wall thickness: 1.5 mm
645021	Product: Extraction thimble, MN 645, Standard quality, Cellulose, 30 mm x 90 mm	Description: MN 645 extraction thimbles are the standard grade, made from pure cellulose. Height: 90 mm Inner diameter: 30 mm Wall thickness: 1.5 mm
645022	Product: Extraction thimble, MN 645, Standard quality, Cellulose, 33 mm x 94 mm	Description: MN 645 extraction thimbles are the standard grade, made from pure cellulose. Height: 94 mm Inner diameter: 33 mm Wall thickness: 1.5 mm
645023	Product: Extraction thimble, MN 645, Standard quality, Cellulose, 30 mm x 100 mm	Description: MN 645 extraction thimbles are the standard grade, made from pure cellulose. Height: 100 mm Inner diameter: 30 mm Wall thickness: 1.5 mm
645024	Product: Extraction thimble, MN 645, Standard quality, Cellulose, 31 mm x 118 mm	Description: MN 645 extraction thimbles are the standard grade, made from pure cellulose. Height: 118 mm Inner diameter: 31 mm Wall thickness: 1.5 mm
645025	Product: Extraction thimble, MN 645, Standard quality, Cellulose, 31 mm x 130 mm	Description: MN 645 extraction thimbles are the standard grade, made from pure cellulose. Height: 130 mm Inner diameter: 31 mm Wall thickness: 1.5 mm
645026	Product: Extraction thimble, MN 645, Standard quality, Cellulose, 33 mm x 205 mm	Description: MN 645 extraction thimbles are the standard grade, made from pure cellulose. Height: 205 mm Inner diameter: 33 mm Wall thickness: 1.5 mm
645027	Product: Extraction thimble, MN 645, Standard quality, Cellulose, 34 mm x 120 mm	Description: MN 645 extraction thimbles are the standard grade, made from pure cellulose. Height: 120 mm Inner diameter: 34 mm Wall thickness: 1.5 mm
645028	Product: Extraction thimble, MN 645, Standard quality, Cellulose, 34 mm x 150 mm	Description: MN 645 extraction thimbles are the standard grade, made from pure cellulose. Height: 150 mm Inner diameter: 34 mm Wall thickness: 1.5 mm
645029	Product: Extraction thimble, MN 645, Standard quality, Cellulose, 38 mm x 200 mm	Description: MN 645 extraction thimbles are the standard grade, made from pure cellulose. Height: 200 mm Inner diameter: 38 mm Wall thickness: 1.5 mm
645030	Product: Extraction thimble, MN 645, Standard quality, Cellulose, 40 mm x 150 mm	Description: MN 645 extraction thimbles are the standard grade, made from pure cellulose. Height: 150 mm Inner diameter: 40 mm Wall thickness: 2 mm
645031	Product: Extraction thimble, MN 645, Standard quality, Cellulose, 40 mm x 123 mm	Description: MN 645 extraction thimbles are the standard grade, made from pure cellulose. Height: 123 mm Inner diameter: 40 mm Wall thickness: 2 mm
645032	Product: Extraction thimble, MN 645, Standard quality, Cellulose, 43 mm x 130 mm	Description: MN 645 extraction thimbles are the standard grade, made from pure cellulose. Height: 130 mm Inner diameter: 43 mm Wall thickness: 2 mm
645033	Product: Extraction thimble, MN 645, Standard quality, Cellulose, 48 mm x 145 mm	Description: MN 645 extraction thimbles are the standard grade, made from pure cellulose. Height: 145 mm Inner diameter: 48 mm Wall thickness: 2 mm
645034	Product: Extraction thimble, MN 645, Standard quality, Cellulose, 48 mm x 200 mm	Description: MN 645 extraction thimbles are the standard grade, made from pure cellulose. Height: 200 mm Inner diameter: 48 mm Wall thickness: 2 mm
645035	Product: Extraction thimble, MN 645, Standard quality, Cellulose, 48 mm x 230 mm	Description: MN 645 extraction thimbles are the standard grade, made from pure cellulose. Height: 230 mm Inner diameter: 48 mm Wall thickness: 2 mm
645036	Product: Extraction thimble, MN 645, Standard quality, Cellulose, 51 mm x 145 mm	Description: MN 645 extraction thimbles are the standard grade, made from pure cellulose. Height: 145 mm Inner diameter: 51 mm Wall thickness: 2 mm
645037	Product: Extraction thimble, MN 645, Standard quality, Cellulose, 51 mm x 180 mm	Description: MN 645 extraction thimbles are the standard grade, made from pure cellulose. Height: 180 mm Inner diameter: 51 mm Wall thickness: 2 mm
645038	Product: Extraction thimble, MN 645, Standard quality, Cellulose, 57 mm x 315 mm	Description: MN 645 extraction thimbles are the standard grade, made from pure cellulose. Height: 315 mm Inner diameter: 57 mm Wall thickness: 2 mm
645039	Product: Extraction thimble, MN 645, Standard quality, Cellulose, 60 mm x 180 mm	Description: MN 645 extraction thimbles are the standard grade, made from pure cellulose. Height: 180 mm Inner diameter: 60 mm Wall thickness: 2 mm
645040	Product: Extraction thimble, MN 645, Standard quality, Cellulose, 55 mm x 275 mm	Description: MN 645 extraction thimbles are the standard grade, made from pure cellulose. Height: 275 mm Inner diameter: 55 mm Wall thickness: 2 mm
645041	Product: Extraction thimble, MN 645, Standard quality, Cellulose, 75 mm x 160 mm	Description: MN 645 extraction thimbles are the standard grade, made from pure cellulose. Height: 160 mm Inner diameter: 75 mm Wall thickness: 2 mm
645042	Product: Extraction thimble, MN 645, Standard quality, Cellulose, 68 mm x 250 mm	Description: MN 645 extraction thimbles are the standard grade, made from pure cellulose. Height: 250 mm Inner diameter: 68 mm Wall thickness: 2 mm
645043	Product: Extraction thimble, MN 645, Standard quality, Cellulose, 70 mm x 330 mm	Description: MN 645 extraction thimbles are the standard grade, made from pure cellulose. Height: 330 mm Inner diameter: 70 mm Wall thickness: 2 mm

MN 645 W

Extraction thimbles MN 645 W are made from cellulose, more permeable than MN 645.

REF	Product Name	Description
645105	Product: Extraction thimble, MN 645 W, Permeable quality, Cellulose, 20 mm x 80 mm	Description: Extraction thimbles made from cellulose. Height: 80 mm Inner diameter: 20 mm
645116	Product: Extraction thimble, MN 645 W, Permeable quality, Cellulose, 28 mm x 90 mm	Description: Extraction thimbles made from cellulose. Height: 90 mm Inner diameter: 28 mm
645126	Product: Extraction thimble, MN 645 W, Permeable quality, Cellulose, 31 mm x 205 mm	Description: Extraction thimbles made from cellulose. Height: 205 mm Inner diameter: 31 mm

MN 645 D

Extraction thimbles MN 645 D with lid to prevent loss of contents.

REF	Product Name	Description
645220	Product: Extraction thimble, MN 645 D, With lid, Cellulose, 30 mm x 80 mm	Description: Extraction thimbles made from cellulose with lid. Height: 80 mm Inner diameter: 30 mm
645223	Product: Extraction thimble, MN 645 D, With lid, Cellulose, 30 mm x 100 mm	Description: Extraction thimbles made from cellulose with lid. Height: 100 mm Inner diameter: 30 mm
645225	Product: Extraction thimble, MN 645 D, With lid, Cellulose, 31 mm x 130 mm	Description: Extraction thimbles made from cellulose with lid. Height: 130 mm Inner diameter: 31 mm

MN 645 F

Extraction thimbles MN 645 F are made from cellulose, denser than MN 645.

REF	Product Name	Description	Order
645406	Product: Extraction thimble, MN 645 F, Denser quality, Cellulose, 22 mm x 80 mm	Description: Dense extraction thimbles made from cellulose. Height: 80 mm Inner diameter: 22 mm
645423	Product: Extraction thimble, MN 645 F, Denser quality, Cellulose, 30 mm x 100 mm	Description: Dense extraction thimbles made from cellulose. Height: 100 mm Inner diameter: 30 mm

MN 645 R

Extraction thimbles with sealing collar and two finger recesses on opposite sides of the collar. Perfect for dust analysis in industrial gases, exhaust gases and room air.

REF	Product Name	Description	Order
645500	Product: Extraction thimble, MN 645 R, With collar, Cellulose, 79 mm x 155 mm	Description: Extraction thimbles made from cellulose. Height: 155 mm Inner diameter: 79 mm Diameter collar: 102 mm

Glass Fiber Extraction Thimbles

Glass fiber extraction thimbles from MACHEREY‑NAGEL are made from pure borosilicate glass microfibers without addition of binders. They have a high particle retention and temperature resistance of 500 °C/932 °F. Therefore, they are perfectly suited for dust analysis in hot exhaust gases.

MN 649

High purity glass fibres. Perfect for:

Pollution monitoring, air sampling
High temperature filtration (up to 500 °C/932 °F)
For solvents incompatible with cellulose thimbles (for example strong acids or bases)

REF	Product Name	Description
649103	Product: Glass fiber extraction thimble, MN 649, Standard quality, 15 mm x 50 mm	Description: Extraction thimbles MN 649 are made from glass microfibers without binder, short-term temperature resistance up to 500 °C, very high particle retention, for dust analysis in hot exhaust gases. Height: 50 mm Inner diameter: 15 mm Wall thickness: 1 mm
649104	Product: Glass fiber extraction thimble, MN 649, Standard quality, 16 mm x 100 mm	Description: Extraction thimbles MN 649 are made from glass microfibers without binder, short-term temperature resistance up to 500 °C, very high particle retention, for dust analysis in hot exhaust gases. Height: 100 mm Inner diameter: 16 mm Wall thickness: 1 mm
649106	Product: Glass fiber extraction thimble, MN 649, Standard quality, 22 mm x 80 mm	Description: Extraction thimbles MN 649 are made from glass microfibers without binder, short-term temperature resistance up to 500 °C, very high particle retention, for dust analysis in hot exhaust gases. Height: 80 mm Inner diameter: 22 mm Wall thickness: 1.5 mm
649107	Product: Glass fiber extraction thimble, MN 649, Standard quality, 23 mm x 90 mm	Description: Extraction thimbles MN 649 are made from glass microfibers without binder, short-term temperature resistance up to 500 °C, very high particle retention, for dust analysis in hot exhaust gases. Height: 90 mm Inner diameter: 23 mm Wall thickness: 1.5 mm
649108	Product: Glass fiber extraction thimble, MN 649, Standard quality, 23 mm x 100 mm	Description: Extraction thimbles MN 649 are made from glass microfibers without binder, short-term temperature resistance up to 500 °C, very high particle retention, for dust analysis in hot exhaust gases. Height: 100 mm Inner diameter: 23 mm Wall thickness: 1.5 mm
649109	Product: Glass fiber extraction thimble, MN 649, Standard quality, 27 mm x 80 mm	Description: Extraction thimbles MN 649 are made from glass microfibers without binder, short-term temperature resistance up to 500 °C, very high particle retention, for dust analysis in hot exhaust gases. Height: 80 mm Inner diameter: 27 mm Wall thickness: 1.5 mm
649111	Product: Glass fiber extraction thimble, MN 649, Standard quality, 28 mm x 60 mm	Description: Extraction thimbles MN 649 are made from glass microfibers without binder, short-term temperature resistance up to 500 °C, very high particle retention, for dust analysis in hot exhaust gases. Height: 60 mm Inner diameter: 28 mm Wall thickness: 1.5 mm
649114	Product: Glass fiber extraction thimble, MN 649, Standard quality, 28 mm x 120 mm	Description: Extraction thimbles MN 649 are made from glass microfibers without binder, short-term temperature resistance up to 500 °C, very high particle retention, for dust analysis in hot exhaust gases. Height: 120 mm Inner diameter: 28 mm Wall thickness: 1.5 mm
649118	Product: Glass fiber extraction thimble, MN 649, Standard quality, 30 mm x 150 mm	Description: Extraction thimbles MN 649 are made from glass microfibers without binder, short-term temperature resistance up to 500 °C, very high particle retention, for dust analysis in hot exhaust gases. Height: 150 mm Inner diameter: 30 mm Wall thickness: 1.5 mm
649120	Product: Glass fiber extraction thimble, MN 649, Standard quality, 33 mm x 80 mm	Description: Extraction thimbles MN 649 are made from glass microfibers without binder, short-term temperature resistance up to 500 °C, very high particle retention, for dust analysis in hot exhaust gases. Height: 80 mm Inner diameter: 33 mm Wall thickness: 1.5 mm
649121	Product: Glass fiber extraction thimble, MN 649, Standard quality, 33 mm x 90 mm	Description: Extraction thimbles MN 649 are made from glass microfibers without binder, short-term temperature resistance up to 500 °C, very high particle retention, for dust analysis in hot exhaust gases. Height: 90 mm Inner diameter: 33 mm Wall thickness: 1.5 mm
649122	Product: Glass fiber extraction thimble, MN 649, Standard quality, 33 mm x 94 mm	Description: Extraction thimbles MN 649 are made from glass microfibers without binder, short-term temperature resistance up to 500 °C, very high particle retention, for dust analysis in hot exhaust gases. Height: 94 mm Inner diameter: 33 mm Wall thickness: 1.5 mm
649123	Product: Glass fiber extraction thimble, MN 649, Standard quality, 33 mm x 100 mm	Description: Extraction thimbles MN 649 are made from glass microfibers without binder, short-term temperature resistance up to 500 °C, very high particle retention, for dust analysis in hot exhaust gases. Height: 100 mm Inner diameter: 33 mm Wall thickness: 1.5 mm
649124	Product: Glass fiber extraction thimble, MN 649, Standard quality, 33 mm x 118 mm	Description: Extraction thimbles MN 649 are made from glass microfibers without binder, short-term temperature resistance up to 500 °C, very high particle retention, for dust analysis in hot exhaust gases. Height: 118 mm Inner diameter: 33 mm Wall thickness: 1.5 mm
649126	Product: Glass fiber extraction thimble, MN 649, Standard quality, 33 mm x 205 mm	Description: Extraction thimbles MN 649 are made from glass microfibers without binder, short-term temperature resistance up to 500 °C, very high particle retention, for dust analysis in hot exhaust gases. Height: 205 mm Inner diameter: 33 mm Wall thickness: 1.5 mm
649128	Product: Glass fiber extraction thimble, MN 649, Standard quality, 35 mm x 150 mm	Description: Extraction thimbles MN 649 are made from glass microfibers without binder, short-term temperature resistance up to 500 °C, very high particle retention, for dust analysis in hot exhaust gases. Height: 150 mm Inner diameter: 35 mm Wall thickness: 1.5 mm
649131	Product: Glass fiber extraction thimble, MN 649, Standard quality, 43 mm x 123 mm	Description: Extraction thimbles MN 649 are made from glass microfibers without binder, short-term temperature resistance up to 500 °C, very high particle retention, for dust analysis in hot exhaust gases. Height: 123 mm Inner diameter: 43 mm Wall thickness: 2 mm
649135	Product: Glass fiber extraction thimble, MN 649, Standard quality, 48 mm x 230 mm	Description: Extraction thimbles MN 649 are made from glass microfibers without binder, short-term temperature resistance up to 500 °C, very high particle retention, for dust analysis in hot exhaust gases. Height: 230 mm Inner diameter: 48 mm Wall thickness: 2 mm
649138	Product: Glass fiber extraction thimble, MN 649, Standard quality, 57 mm x 315 mm	Description: Extraction thimbles MN 649 are made from glass microfibers without binder, short-term temperature resistance up to 500 °C, very high particle retention, for dust analysis in hot exhaust gases. Height: 315 mm Inner diameter: 57 mm Wall thickness: 2 mm
649143	Product: Glass fiber extraction thimble, MN 649, Standard quality, 75 mm x 330 mm	Description: Extraction thimbles MN 649 are made from glass microfibers without binder, short-term temperature resistance up to 500 °C, very high particle retention, for dust analysis in hot exhaust gases. Height: 330 mm Inner diameter: 75 mm Wall thickness: 2 mm

MN 649 R

Extraction thimbles MN 649 R with sealing collar and two finger recesses on opposite sides of the collar; perfect for dust analysis in industrial gases, exhaust gases and room air.

REF	Product Name	Description	Order
649500	Product: Glass fiber extraction thimble, MN 649 R, With collar	Description: Glass fiber extraction thimbles made with Borosilicate glass micro fibers. Height: 155 mm Inner diameter: 79 mm Diameter collar: 50 mm (ID 27 mm), 102 mm (ID 79 mm)
649501	Product: Glass fiber extraction thimble, MN 649 R, With collar	Description: Glass fiber extraction thimbles made with Borosilicate glass micro fibers. Height: 155 mm Inner diameter: 79 mm Diameter collar: 50 mm (ID 27 mm), 102 mm (ID 79 mm)

Thimble grade & size selection

Only demineralized water is used in processing and manufacture of the extraction thimbles. This high purity ensures low contamination and effectively protects the extract. The raw materials are a special selection based on years of experience. Mechanical strength and excellent retention capacities guarantee a safe and reliable extraction.

The thimble sizes undergo a special quality control procedure with low tolerance. These ensure a perfect fit of the extraction thimbles and a convenient workflow. The sizes in the table represent the established practice of showing the internal diameter and the overall height.