Reliably rehabilitated for the next generation
The SF shaft liner is an innovative trenchless rehabilitation process for damaged shaft structures developed by SWIETELSKY-FABER. The technology was awarded the GSTT Award Silver 2017 and is based on the liner method according to DIN EN ISO 11296-4.
With the SF shaft liner, shaft structures can be rehabilitated permanently and economically - without extensive excavation and with minimal disruption to operation and the surface.
DN 800 – DN 1500
Round and box profiles
Concrete, masonry, and composite constructions (depending on the project)
Cracks, leaks, infiltration, corrosion, material degradation
from 5 mm
Before execution begins, the exact dimensions of the shaft are recorded and transmitted to production.
Based on this, the SF shaft liner is:
Installation is carried out trenchlessly in the existing shaft structure. After curing, a permanently watertight, mechanically resilient and corrosion-resistant inner lining is created.
The result is a rehabilitated shaft structure with a service life extension of up to 50 years.
Everything else you need to know about the technology
The SF manhole liner is particularly suitable for leaks, cracks, corrosion damage, material degradation, and structurally damaged manhole structures.
Typical base materials are concrete, masonry, and composite constructions. Suitability is checked on a project-specific basis.
With proper execution, the service life can be extended by up to 50 years.
No. The process is completely trenchless and is carried out within the existing manhole structure.
The SF manhole liner is suitable for round and box-shaped manhole profiles.
The individually manufactured liner is inserted into the existing manhole, adjusted, and cured on site. This creates a new, sealed internal lining.
The minimum wall thickness of the liner is 5 mm, depending on the structural design.
Yes. The technology is based on the cured-in-place pipe method according to DIN EN ISO 11296-4.
