5.0 Google Rated • Certified Quality Standards • Custom Project Solutions
The 127 Series Thermal Break Slim Sliding Door is designed for projects that need wide views, smooth access, strong performance, and a clean architectural look. Its slim 77mm frame helps maximize the glass area while maintaining the strength needed for larger patio, balcony, and residential or commercial openings.
Built with 6063-T5 aluminum profiles, PA66 thermal break strips, Low-E insulated glass, and quality hardware, this sliding door system helps support thermal comfort, sound reduction, weather resistance, and long-term durability. Depending on the project, the system can be reviewed with dual-track layouts, waterproof or silent high-track options, folding mesh screens, 304 stainless steel security mesh, decorative grids, custom colors, and different glass configurations.
The 127 Series is a strong option for patio doors, balcony partitions, compact spaces, garden entrances, offices, cafés, and modern indoor-outdoor transitions where slim sightlines, security, comfort, and reliable sliding performance matter.

Ready to order or have questions? Contact us for pricing, availability, and custom configurations.
Slim 77mm Frame
The slim frame design helps maximize the glass area, creating wider views, more natural light, and a cleaner architectural look.
Thermal Break Comfort
PA66 thermal break strips and insulated Low-E glass help reduce heat transfer and support year-round indoor comfort.
Smooth Heavy-Duty Sliding
High-capacity rollers and quality hardware support smooth operation for large panels and everyday indoor-outdoor use.
Weather-Ready Performance
Reinforced aluminum profiles, sealing details, and track options help support wind resistance, water protection, and long-term durability.
Secure Locking System
CMECH hardware, multi-point locking, and reinforced components can help improve security and peace of mind.
Screen, Track & Grid Options
Folding mesh, stainless steel security mesh, waterproof high track, silent high track, and decorative grid options can be reviewed by project.
Contact us for pricing, availability, and custom configurations.
The 127 Series can be reviewed with different track layouts, thermal break profiles, glazing options, screen systems, drainage details, colors, and hardware configurations based on your project needs.
Description:
The 127 Series can be reviewed with double glazing, triple-glazing upgrades, thermal break profiles, concealed drainage, and low-threshold details. These system details help improve comfort, water management, insulation, and everyday usability.
Key Points:
Double glazing as standard
Triple-glazing upgrade where available
Thermal break profile
Concealed drainage system
Low-threshold design
Waterproof high-track option for exterior use
Description:
Energy-efficient glass options help support indoor comfort by reducing heat transfer, solar heat gain, and UV exposure. The 127 Series can be reviewed with Low-E insulated glass, argon-filled glass, and PA66 thermal break strips for improved year-round performance.
Key Points:
6mm Low-E + 12A + 6mm double tempered glass
Argon-filled insulated glass options
PA66 thermal break strips
U-value up to ≤1.5 W/m²K depending on configuration
Sound insulation up to ≥35dB depending on glass selection
Description:
The 127 Series sliding door system can be reviewed with two-track, three-track, or four-track layouts depending on the opening size, panel movement, and project needs. These configurations help support wider openings, smoother access, and more flexible indoor-outdoor transitions.
Key Points:
Two-track layouts for practical patio and balcony openings
Three-track layouts for wider movement and better panel stacking
Four-track layouts available for larger custom configurations
Description:
The system combines a slim architectural frame with heavy-duty aluminum construction. Its 77mm frame design helps maximize the glass area while the 6063-T5 aluminum profile supports strength, stability, and long-term performance.
Key Points:
77mm slim frame design
Up to 85% glass ratio
6063-T5 aluminum profile
2.0mm aluminum thickness
Designed for wide views and strong daily use
Walidor sliding doors are available in multiple series — from lightweight residential profiles to heavy-duty commercial systems. Compare options below or contact us for a recommendation.
All series share the same hardware and finish options. Higher series numbers offer thicker profiles, larger panel capacity, and improved thermal performance.
| Feature | 127 Series Thermal Break Heavy Duty Sliding Door | 150 Series | SED200 Four-Track | SED200 Corner | 36-20 Series | Two-Track Glass Railing |
|---|---|---|---|---|---|---|
| Best For |
Wide patio openings, balcony transitions, compact spaces, and modern indoor-outdoor living.
Recommended for this product |
Heavy-duty residential openings | Large multi-panel openings | Corner openings and panoramic spaces | High-traffic commercial applications | Modern interiors and glass partition-style openings |
| System Type | Thermal break slim-frame heavy duty sliding door | Heavy-duty sliding door system | Large four-track sliding system | Corner sliding system | Commercial sliding system | Two-track glass railing / sliding system |
| Frame Material | 6063-T5 thermal break aluminum | Aluminum system | Aluminum system | Aluminum system | Thermal break aluminum system | Aluminum / glass system |
| Frame / Sightline | 77mm frame with high glass ratio | Reviewed by system | Reviewed by system | Reviewed by system | Reviewed by project | Reviewed by project |
| Glass Area | Up to 85% glass ratio for wider views | Reviewed by project | Large glass panels | Panoramic corner glass opening | Large commercial glass panels | Large glass panels |
| Thermal Break | ✓ PA66 thermal strips | ✓ PA66 | — | — | ✓ PA66GF25 | — |
| U-Value | ≤1.5 W/m²K, depending on glass and configuration | — | — | — | ≤1.6 W/m²K | — |
| Profile Thickness | 2.0–2.5mm aluminum profile | Reviewed by system | Reviewed by system | Reviewed by system | Reviewed by project | Reviewed by project |
| Panel Size | 30"–78" width × 78"–114" height per panel | 2000 × 3000mm | 4 × 6.5m | 4 × 6.5m | 6 × 6m | 3 × 5.5m |
| Max Weight | Up to 150 kg per sash / panel | — | 1200 kg | 1200 kg | 1000 kg | 600 kg |
| Glass | 6mm Low-E + 12A/20A + 6mm double tempered insulated glass | Reviewed by project | Reviewed by project | Reviewed by project | Reviewed by project | Reviewed by project |
| Glass Features | Low-E coating, argon-filled glass, and clear 85% glass option | Energy-efficient glass options | Reviewed by project | Reviewed by project | Reviewed by project | Reviewed by project |
| Wind Resistance | ≥3000 Pa / up to +4000 Pa depending on configuration | — | — | 5000 Pa | 5000 Pa | — |
| Water Tightness | Up to 600 Pa depending on system | — | Reviewed by project | Reviewed by project | Reviewed by project | Reviewed by project |
| Sound Insulation | Up to 35–43 dB depending on glass/configuration | Reviewed by project | Reviewed by project | Reviewed by project | Reviewed by project | Reviewed by project |
| Track | Dual track; waterproof high track or standard high track options | Standard | Four-track | Concealed | 1–6 track | Two-track |
| Drainage | Hidden drainage and sill details available | Reviewed by project | Reviewed by project | Reviewed by project | Reviewed by project | Reviewed by project |
| Hardware | American CMECH hardware or equivalent quality brand | Reviewed by project | Heavy-duty hardware options | Heavy-duty hardware options | Commercial hardware options | Reviewed by project |
| Locking System | Multi-point locking; CMECH / OAOSM spindle lock options | Reviewed by project | Reviewed by project | Reviewed by project | Reviewed by project | Reviewed by project |
| Electric Opening | — | — | ✓ | ✓ | ✓ | ✓ |
| Corner Config | — | — | — | 90° ✓ | — | — |
| Screen Option | ✓ Folding mesh / diamond mesh / 304 stainless steel security mesh options | ✓ | ✓ | ✓ | — | ✓ |
| Grids | Built-in grids between glass or exterior double grid options | Reviewed by project | Reviewed by project | Reviewed by project | Reviewed by project | Reviewed by project |
| Colors & Finishes | Black / custom exterior color options reviewed by project | Custom finishes reviewed by project | Custom finishes reviewed by project | Custom finishes reviewed by project | Custom finishes reviewed by project | Custom finishes reviewed by project |
| Certification | Energy Saving NFRC, where applicable | Reviewed by project | Reviewed by project | Reviewed by project | Reviewed by project | Reviewed by project |
| Project Type | New construction and replacement projects — final configuration reviewed based on opening size, performance needs, and installation requirements. | |||||
| Warranty | 15 years — available series warranty, subject to selected system, installation, and warranty terms. | |||||








Contact us for pricing, availability, and custom configurations.