Product Overview
This heavy duty sliding door is engineered for residential and commercial applications where performance and durability are required. Designed as a true lift and slide door, it combines effortless operation with exceptional sealing performance. The thermal break aluminum door construction ensures stable indoor temperatures while resisting air leakage effectively.
Key Performance Features

The unique multi-point sealing system ensures this lift and slide door maintains a tight seal under high wind pressure. Unlike standard sliding doors, this heavy duty sliding door uses compression sealing when lifted, completely stopping air infiltration.
With concealed drainage channels integrated into the lower rail, this lift and slide door achieves superior water tightness. Rainwater is guided away automatically, preventing any leakage even during tropical storms. The water tightness of this thermal break aluminum door meets international standards for coastal installations.

As a true heavy duty sliding door, it supports taller and wider panels without frame deflection. The aluminum profile of this lift and slide door is reinforced at critical points. Additionally, this thermal break aluminum door incorporates polyamide insulation strips, reducing thermal transfer by up to 40% compared to non-thermal models.
This lift and slide door offers two operation methods:
l Lift mode – Lift the handle to seal the door against the frame, maximizing water tightness and air leakage resistance.
l Slide mode – Lower the handle for standard sliding operation, ideal for daily use.
Regardless of mode, this heavy duty sliding door maintains its structural integrity and water tightness protection.
Technical Specifications
| Product Details | |
| Frame Material | Thermal break aluminum door profile |
| Max Panel Height | 3000 mm |
| Drainage | Concealed with tested water tightness |
| Handle Type | Cam lock (one-key operation) |
| Sealing Double | EPDM weatherstripping |
Why Choose This Hravy Duty Lift and Slide Door?
1. Proven air leakage resistance – Meets or exceeds ASTM standards.
2. Verified water tightness – Zero leakage reported in field tests.
3. Thermal efficiency – The thermal break aluminum door design reduces condensation.
4. Heavy duty sliding door construction – Suitable for high-rise apartments and villas.



Installtion & Maintenance
This lift and slide door requires minimal maintenance. The concealed drainage system keeps the track debris-free, while the thermal break aluminum door frame resists corrosion. Regular cleaning of the bottom rail ensures lasting water tightness.

Ordering Information
Each heavy duty sliding door is custom fabricated to your opening size. Please provide your rough opening dimensions to receive a quote for this lift and slide door system.
Company Profile

Since 1999, CURMA has been a pioneering force in the aluminum industry. With over 27 years of specialization, we are more than a manufacturer of high-performance windows and doors; we are an integrated supplier providing both finished products and the aluminum profiles. As a fully integrated enterprise controlling the entire process from R&D to sales, we ensure stringent quality control at every stage. Our commitment is reflected in advanced production capabilities and an innovation-driven industry chain.
Our manufacturing strength is anchored in a sprawling 400,000m² production base, supported by a workforce of over 2,000 professionals and dozens of automated smart production lines. Equipped with state-of-the-art machinery and testing facilities, we integrate processes such as aluminum extrusion, fully automated spraying, PET wood grain transfer, glass tempering, insulating glass assembly, and finished door and window production. Embracing Industry 4.0 technologies, we achieve precision, efficiency, and scalability in every product we deliver.
Quality and reliability are at the core of our operations. We adhere to the ISO9001 quality management system and hold international certifications including CE, CCC, and IGCC. These credentials, combined with our dedication to detail-driven craftsmanship, enable us to meet diverse global standards and customer expectations.


