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Extrusion of silicone in Merefsa

The silicone extrusion process is one in which the unvulcanized silicone rubber moves through the cylinder of an extruder with the help of an endless screw to the head of the extruder. In this location press against the profile placed with the previously designed form. The silicone formed according to the geometry of the utensil is then moved to a high temperature zone located in the rear area of the extruder and which is vulcanized by the action of the high temperature. Silicone vulcanization is the last step of extrusion. In this, the silicone sets its physical and chemical characteristics as well as the shape. The quality and wall thicknesses of the product are monitored by contactless control of the contours. In Merefsa this control is carried out with a latest generation reader, which provides a continuous quality traceability reading and with 4 artificial vision cameras guaranteeing the most demanding tolerance levels.

Our customers also have the service of marking the profile or silicone tube. Any type of text or numbering can be incorporated. In this process, high-precision printers are used that perform inkjet writing in various colors at high pressure. Recently, the acquisition of a state-of-the-art extruder line has been made that allows us to significantly improve the quality of our service and reduce our already short delivery times, as well as increase our range of silicone products with the manufacture of different densities.

Most common silicone extrusion products

Most common silicone extrusion products

  • Silicone laces
  • Silicone Hoses and Tubes
  • Rectangular Silicone Profiles, Shape Silicone profiles
  • Fluffy Silicone Cords
  • Rectangular Sponge Silicone Profiles, Sponge Silicone Profiles
  • Reinforced Silicone Pipe

Silicone extrusion tolerances in Merefsa

Silicone extrusion tolerances in Merefsa, regulations and certifications

The tolerance in the process of extrusion with silicone, unlike those that work with more rigid materials, depends on several factors such as the additivation of the compound, the temperature, the curing time, the contraction, etc.

There are 3 degrees of internationally accepted extrusion tolerance, "E" :

  • Clase E1 = High quality
  • Clase E2 = Good quality. (Standard in Merefsa)
  • Clase E3 = No Critical

REGULATIONS AND CERTIFICATIONS: We have the means to ensure that our products comply with the general regulations and the most specific certification regulations in manufacturing:

ISO 9001 e ISO 14001. - TS 16949, UNE-EN ISO 13485, … - OHSAS 18001. - ISO 3302-1

Advantages of the extrusion process

Advantages of the extrusion process

  • Possibility of manufacturing a variety of shapes
  • The products are flexible and light
  • High efficiency in all products

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MEREFSA SLU

Av. Segle XXI, 56 08840 Viladecans

Barcelona ( Spain)

Tel (+34) 933 372 081

Fax (+34) 933 374 373

Horarios:

Monday to thursday from 8:15 to 13:00

Monday to thursday from 14:00 to 17:15

Friday from 7:00 a 14:15

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