UW- value 1.3
WDS SL 76 — Erases the boundary between home and garden. This is an innovative Smart Slide class system (Airtight sliding) that combines the advantages of two worlds: the convenience of sliding doors and the complete airtightness of classic casement windows.
What's revolutionary?
In regular sliders, brushes are used that let air through. WDS SL 76 uses a continuous rubber sealing circuit. When the handle turns, the sash shifts perpendicular to the frame and presses tightly against the gasket on all 4 sides.
Result:
- You can install such doors in heated living rooms, bedrooms, and children's rooms — there will be no drafts.
- Perfect protection from driving rain and storm winds (DANA), common on Spain's coast.
- Ability to create huge panoramic sashes (up to 3 meters wide) that open with one finger.
Article number
600.310.001
Technical Specifications
Details
Slider-window hybrid. 100% airtightness thanks to smart sash pressing around the entire perimeter.
Energy rating
A
System type
Airtight (Smart)
Profile depth
76 mm
Chambers
5 chambers
Glass unit
up to 48 mm
Thermal protection
Uw ≤ 1.3 W/(m²·K)
Sound insulation
≈45 dB
System Design Parameters:
- Installation depth: 150 mm (frame) / 76 mm (sash).
- Opening type: Parallel-sliding (sash exits the plane and smoothly slides behind the fixed part).
- Profile construction: 5-chamber frame and 5-chamber sash, providing high thermal performance.
- Airtightness: Unlike classic sliders, high-quality perimeter sealing (not brushes) is used here, eliminating drafts.
- Threshold: Specialized aluminum track with thermal break for floor freeze protection.
Glazing Options:
- Maximum filling thickness: up to 48 mm.
- Recommended solution: Double-chamber energy-saving glass units with argon and multifunctional glass for panoramic zones.
Maximum Structure Dimensions:
- Maximum structure width: up to 4000 mm.
- Maximum sash height: up to 2500 mm.
- Maximum sash width: up to 2000 mm.
- Sash weight: up to 160-200 kg (depending on hardware type used).
Certified Characteristics:
- Thermal resistance coefficient (Ro): up to 0.90 m²°C/W (exceeds residential requirements).
- Sound insulation: up to 42 dB.
- Air permeability: Class 4 (highest airtightness level).
- Water tightness: Class 9A (reliable rain protection).
Documentation
WDS SL 76 Technical Catalog
PDF. 2.8Mb
Technology
100% Airtightness
Unlike old sliders with brushes, full EPDM rubber is used here. When closing, the sash presses against the frame, blocking noise, wind, and street odors.
Hardware
Easy Sliding
Special carriages allow easy movement of even heavy sashes weighing up to 150 kg. The system can be equipped with dampers that smoothly slow the sash before closing, like a premium kitchen drawer.
Design
Panoramic View
Minimum plastic, maximum glass. The system allows closing openings up to 3-4 meters wide (in two-part configuration), filling your living room with light.
WDS SL76
Slider-window hybrid. 100% airtightness thanks to smart sash pressing around the entire perimeter.
Calculate Cost
Estimated manufacturing time 3-6 weeks.
Eligible for NextGen Subsidy -80%
Get up to €3,000 back on this window
Available Services
Free measurement and design More details
Delivery to installation site More details
Installation by our specialists More details
Buy by Phone
Call us Monday to Saturday, except holidays, from 8:00 AM to 10:00 PM. Sundays and holidays from 10:00 AM to 8:00 PM. Call
More Ideas and Inspiration
These are some examples of our work with WDS SL76 profile. All this inspiration is for you and only for you.
* - Photos provided by our partners and may differ from actual products.
We are working on keeping data up-to-date. Contact us if you need fresh materials.
We are working on keeping data up-to-date. Contact us if you need fresh materials.
Financing Options
Enjoy your purchase now and pay for it in installments using our financing services.
More detailsDon't Forget to Add
Additional elements and accessories that will make your home even more comfortable
Mosquito Nets
Protect your home from insects, dust, and pollen, allowing you to enjoy fresh air even in the middle of summer.
Handles and Locking Elements
Quality hardware ensures ease of use and security for your windows and doors.
Lamination
Colorful home facades and the desire to decorate your home leads to growing demand for laminated windows every year.
Decorative Elements
Decorative strips and bars allow you to give your windows an individual style, emphasizing the architectural features of your home.
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Available in Your Region
We work throughout Spain
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FAQs
Frequently Asked Questions about WDS SL76
What's the difference from lift-and-slide (HST) doors?
Smart Slide system (WDS SL 76) is lighter, more airtight due to pressing (not lowering), and importantly, significantly more affordable than heavy aluminum HST portals.
Does this door have a threshold?
The frame design requires a small threshold (about 6 cm), as it's necessary for airtight sash pressing from below. This is the price for perfect thermal insulation.
How secure is this window?
Very secure. Thanks to numerous locking points around the perimeter (activated when turning the handle), forcing such a sash with a crowbar is virtually impossible. Protection class up to RC2.
Can it be laminated?
Yes, large sliding doors look stunning in "Anthracite" or "Ultra-matte Black" lamination, imitating expensive aluminum while retaining PVC warmth.
Need Help Choosing?
Order a free consultation from our company specialists. We will call you back at a convenient time and discuss how we can help you.