Dorma In-ground Door Closers
The tough & durable floor spring specially designed for double action doors
Marathon are proud to offer the world's best in-ground gate and door closers from Dorma. Specially tailored to satisfy the special requirements governing floor springs for double action doors, Dorma closers also offer a particularly shallow design and thus all the advantages of a reduced installation depth.
Benefits of Dorma door closers include;
- Outstanding value for money.
- Wide range of accessories to accommodate various installation situations.
- Easy installation thanks to shallow design.
- Easy to adapt to individual requirements with dual valve control 130° to 0° and 130° to 20°.
- Interchangeable spindle inserts available to suit site conditions.
- Minimum floor recess dimension.
- Rugged construction for door weights up to 100 kg.
- Smooth closing operation virtually temperature-immune.
- Low effort requirement ensures easy door operation.
- Optional integrated single point hold-open at 90°.
- Exceptional Dorma quality.
With a choice of models, Dorma in-ground floor closers can fulfill virtually any application requirement while providing all the reliability associated with assured quality from Marathon.




