Tannery felts

Sammying felts : synthetic felts or mixed felts

The Dollfus & Muller felts are used on through feed sammying machines during hide processing in tanneries and are called sammying felts or Wringer felts. In a tannery, the sammying machines (Wringers) take out from the hides its surplus of water and its fats.

Dollfus & Muller sammying or wringer felts allow an immediate dewatering, degreasing and offer an excellent drainage. The hide runs between two felts under high pressure applied by strong cylinders (up to 7 cylinders). Dollfus & Muller felts are resistant to high pressure, easy to guide for a quick running start and allow an easy maintenance. The bottom sammying felts are also available in black color for a reliable infrared surface measuring, and are then called black bottom felts.

The Dollfus & Muller ESCO felts can be provided in various fibres mixes : either synthetic felts or mixed felts. Furthermore, different styles are available according to the sammying machine model. This wide range allows to provide one adequate solution for each leather processing :

vegetal or chrome tanning
crust, sides or full hides
buffalo, goat, pig skins…

Sammying machine with 7 cylinders

These tannery felts are used on following machines suivantes : Bauce, Escomar, CM, Rotopia, 3P, Rizzi, Poletto, Turner, 3H, Shanghai Sunhome, Sprun, Jinjiao, YP, Feng Hsin, Hydrocharm HC, Barnini, Gemata, etc...

FELTS FOR THROUGH FEED SAMMYING MACHINES (machines with 3, 5, 6 or 7 cylinders)
Type of leather	Production	Type of machine	Process	Recommended Felt	Characteristics
					Composition	Weight (g/m²)	Thickness (mm)	Water permeability l/h/10 cm² (under 2 bars of water pressure)	Lifetime
Cow, Buffalo, Calf, Pig, Goat, Sheep, Reptile	Automotive, upholstery	6-7 pressure cylinders machines heavy sammying	Wet blue, vegetal tanning, greasy hides	ESCO S 100 ESCO S 100 black	100% synthetic	10000	20	350	+++++
Cow, Buffalo, Calf, Pig, Goat, Sheep, Reptile	Automotive, upholstery	5 pressure cylinders machines heavy sammying	Wet blue, vegetal tanning, greasy hides	ESCO S 95 ESCO S 95 black	100% synthetic	9500	18	350	+++++
Cow, Buffalo, Calf, Pig, Goat, Sheep, Reptile	Shoes, Garments, Bags	3 pressure cylinders machines	Wet blue	ESCO M 85 ESCO M 85 black	30% wool 70% synthetic	8500	17	330	+++
Cow, Buffalo, Calf, Pig, Goat, Sheep, Reptile	Shoes, Garments, Bags	3 pressure cylinders machines	Wet blue, vegetal tanning, greasy hides	ESCO S 85 ESCO S 85 black	100% synthetic	8500	17	300

Tannery felts

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Sammying felts : synthetic felts or mixed felts