Cortizo 4600 Lift & Slide HI
The ideal solution to close large spans with excellent thermal and acoustic performance.
Cortizo 4600 Lift & Slide HI Features
Start with the published benefits that most affect performance, appearance and day-to-day use.
Advanced Lift & Slide Technology
The Cortizo 4600 Lift & Slide HI features a hardware system that slightly elevates the sash for smooth opening and closing. It’s perfect for large dimensions and heavyweight sashes.
Thermal Performance
Uw from 0.9 W/m²K for excellent insulation.
Acoustic Insulation
Achieves Rw up to 43 dB for quieter spaces.
Large Dimensions
Maximum sash dimensions up to 3300 mm in width and height.
Support Heavy Sashes
Supports up to 400 kg per sash.
Design and Functionality
The Cortizo 4600 Lift & Slide HI offers a modern design with straight aesthetics in both sashes and beads. With an optional reduced interlock sightline of 50 mm, it allows for larger glazed surfaces in your architecture projects.
- Sliding and Thermally broken frames
- Frame sightlines from 160.6 mm to 251 mm
- Multiple opening possibilities including 90° without a mullion
Specifications
- Frame: 160.6 mm / 251 mm for 3 rails
- Sash thickness: 70 mm
- Polyamide strip length: Frame 35 mm, Sash 24 mm
- Profile thickness: 2.0 mm
- Glazing: Max 55 mm, Min 15 mm
Product Specifications
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What this system is designed to do
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| Lift & Slide hardware (sash lifts slightly) | Smooth, effortless opening/closing even on very large doors, with a better seal when closed. |
| Excellent thermal performance (Uw from 0.9 W/m²K) | Helps keep heat in during winter and out during summer, improving comfort and reducing energy bills. |
| High acoustic insulation (Rw up to 43 dB) | Noticeably quieter interiors—ideal for homes near roads, rail, schools, or busy areas. |
| Built for large spans (up to 3300 mm width/height per sash) | Enables wide, open views and big-glass designs without needing multiple smaller panels. |
| Heavy-duty capacity (supports up to 400 kg per sash) | Handles large, thicker glazing options reliably—better stability and long-term performance. |
Compare the measurable specification
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| Transmittance Uw | ≥ 0.9 W/m²K |
| Acoustic insulation Rw | up to 43 dB |
| Air permeability | Class 4 |
| Water tightness | Class 9A |
| Wind resistance | Class C5 |
| Frame sightline | 160.6 mm / 251 mm for 3 rails |
| Sash thickness | 70 mm |
| Polyamide strip length Frame | 35 mm |
| Polyamide strip length Sash | 24 mm |
| Profile thickness Door | 2.0 mm |
| Glazing Max | 55 mm |
| Glazing Min | 15 mm |
| Maximum Sash Dimensions (Width) | 3300 mm |
| Maximum Sash Dimensions (Height) | 3300 mm |
| Maximum Sash Weight | 400 kg |
See the system in more detail
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Gallery
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Share the property and priorities
Send photographs, plans or rough sizes and tell us what the new opening needs to achieve.
- 02
Confirm the specification
We check system fit, glass, thresholds, hardware, finish and access, then confirm dimensions through survey.
- 03
Approve, manufacture and install
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Explore, compare and plan this product.
Review the key evidence, test a typical opening and save the system to your shortlist. Everything here is based on the information published for this product.
What stands out on this system
- More natural lightGlazing, sightline or large-opening details support brighter spaces.
- Thermal comfortPublished content includes thermal, insulation or draught-control benefits.
- Quieter roomsAcoustic or sound-reduction performance is discussed for this product.
- Ease of useOpening action, thresholds or accessibility details support daily use.
Size the rough opening
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What matters most to the project?
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The result uses only benefits and specifications published on this page.
Build a better-informed shortlist.
Four practical routes for checking the product, project and budget before survey.