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A 55 mm thermal-break aluminum system for inward- and outward-opening windows and doors, with argon-filled insulated glass, EPDM multi-seal gaskets and EN RC3 security.
The 55 Series is a thermal break casement window profile system for homes, apartments and offices. One 55 series casement profile family builds outward-opening windows, outward-opening doors, inward-opening windows and inward-opening doors — so a whole project can be glazed with a consistent look.
Every detail of the section is designed for insulation, sealing and long-term durability.
PA66 insulation strips separate inner and outer aluminum. Insulating glass with an integrally bent aluminum spacer, molecular-sieve desiccant and 100% argon fill keeps heat in and condensation out.
EPDM composite gaskets around the sash and a duckbill rubber strip at the frame create multiple barriers against wind, rain and dust.
Concealed floor-drain style outlets carry water out of the frame quickly and keep the exterior face clean.
Performance values for the 55 Series casement system.
Choose different colors inside and outside to match both façade and interior.
| Exterior | Metallic grey · metallic coffee |
|---|---|
| Interior | Metallic grey · metallic coffee · starlight black · enamel white |
| System | 55 Series thermal-break casement window & door |
|---|---|
| Opening types | Outward-opening window · outward-opening door · inward-opening window · inward-opening door |
| Alloy | 6063-T5 high-quality primary aluminum |
| Profile wall thickness | 1.8 mm |
| Frame width | 55 mm |
| Glass sash width | 80 mm |
| Standard glass | 5 + 15A + 5 automotive-grade float tempered insulated glass, 100% argon filled |
| Glazing bead | Small square pressing line design |
| Thermal break | PA66 insulation strips |
| Gaskets | EPDM composite sealing strips · duckbill rubber strip |
| Drainage | Floor-drain type drainage system |
| Hardware | Complete Guweike hardware set |
| Performance | Sound 35 dB · K 2.5 W/m²·K · water 500 Pa · air 1.0 · wind 5.0 kPa · EN RC3 |
| Colors | Exterior: metallic grey, metallic coffee · Interior: metallic grey, metallic coffee, starlight black, enamel white |
Need wider sightlines or higher insulation? See the 115/125 Series casement, the 70 Series casement or browse all aluminum casement profiles.
No MOQ if you order in-stock profiles; 300 kg if you want to customize your own profile.
We offer a full range of surface finishing options, including powder coating, anodizing, wood grain transfer and PVDF coating. We are authorized by TIGER and AkzoNobel for powder coating, and we can also support custom powder colors and finishes according to your project or brand requirements.
Send us your drawings, and we can develop custom profiles for you or recommend the right window and door system from our existing range. We provide a complete one-stop supply solution, from aluminum profiles and hardware to all accessories and components, so you can start production directly once the goods arrive.
Yes. We support OEM and custom extrusion based on your drawings, samples or technical requirements. We can also help optimize the profile design before opening the mould.
We offer panoramic sliding doors, slim sliding doors, sliding windows, casement windows, swing doors, folding doors, lift-and-slide systems, interior partition systems, the 4516 system, 40 series sliding, and other customized aluminum systems.
Send us your window schedule, opening types and colors — we will reply with a quotation.
MT Flying is a China-based manufacturer of aluminum profiles, windows and doors, providing customized solutions for residential and commercial projects worldwide.
