The SF-20 system is distinguished by: Guides for each type of installation (single or double guide). Vertical adjustment mechanism. Lower guide adaptable to each assembly. Two assembly options for doors of different thickness.

The SF-30 system has: Guides for each type of installation (single or double guide). Vertical adjustment mechanism. Lower guide adaptable to each assembly. Two assembly options for doors of different thickness. Ball bearing.

The SF-53 is designed for furniture and cupboards of up to 53 kg in weight. Depending on the installation, it consists of a single or double guide. On this occasion the rollers are double and have ball bearings. This allows the rollers to adapt to the guide, thus ensuring a perfect sliding action. It also has a bottom guide which can be fitted either hidden or visible, depending on the requirements of the installation, and a braking end stop. The main difference between the SF-53 and the SF-33 is that the latter is fitted with friction bearings.

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