The Dorma Variflex 100 Series Semi Automatic system builds on the proven 100 Series platform, integrating electronically controlled sealing technology to reduce operational effort while maintaining dependable acoustic separation.
The Variflex 100 Semi Automatic system is designed for spaces requiring both operational efficiency and acoustic control. Once panels are positioned, electronic sealing strips activate automatically to apply consistent pressure without manual adjustment, supporting sound attenuation ratings typically between 44 and 55 Rw, depending on configuration. The 100 mm panel construction provides structural stability and helps reduce reverberation in subdivided spaces such as conference centres, education facilities, hospitality venues, and corporate environments.
| STC Rating | 50-55 | Maximum Panel Width (mm) | 1200 |
| Panel Thickness (mm) | 100 | Seals | Automatic Retractable |
| Weight<4100mm (kgm2) | 50 STC=55, 52 STC=58, 55 STC=66 | Finishes Available | Painted Mdf, Melteca, Fabrics,Veneer,Acoustic Fabric |
| Minimum Panel width (mm) | 750 | Track Type | Dorma R Track |
| STC Rating | 50-55 | Maximum Panel Width (mm) | 1200 |
| Panel Thickness (mm) | 100 | Seals | Manual Retractable |
| Weight<4100mm (kgm2) | 50 STC=55, 52 STC=58, 55 STC=66 | Finishes Available | Painted Mdf, Melteca, Fabrics,Veneer,Acoustic Fabric(Only Solid Finish For K Series) |
| Weight<4100mm (kgm2) | 750 | Track Type | Dorma R Track |
Whether you’re planning a new build, upgrading an existing space, or looking for technical guidance, our team is here to help. We support architects, designers, builders and organisations with clear advice and tailored solutions for every project.
Our specialists can assist with specifications, measurements, acoustic performance, product selection, and installation planning. Share your project details, and we’ll provide the information you need to move forward with confidence.
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