The Indian architectural market is evolving rapidly. Contemporary design now demands expansive glazing, minimal visible aluminium sections, effortless movement, and long-term reliability—particularly in large-format openings. Responding to this demand, STAC officially launches its advanced Lift & Slide system range in India, bringing European engineering precision to modern Indian projects. With stock availability now established in India, architects, fabricators, and developers can access STAC’s globally proven lift & slide technology with faster delivery and localised support.

Door Verticle Lifting Mechanism
Door Vertical Lifting Mechanism

Engineered Around Advanced Bogie Technology

At the heart of the STAC system lies its balanced bogie technology, designed to redefine performance in heavy sliding applications. Unlike conventional lift & slide mechanisms, STAC’s system ensures completely vertical lifting. The sash does not sway, tilt, or pitch during operation. Each wheel carries an equal load throughout the lifting movement, guaranteeing perfectly balanced weight distribution. This balanced kinematics reduces wear, prevents bearing seizure, eliminates noise, and significantly extends hardware lifespan.

The compact design allows the wheels to be positioned at the furthest extremes of the sash, improving stability and performance even in large, heavy glazing panels. The independent transmission mechanism between carriages ensures the wheel train functions seamlessly, regardless of assembly configuration. This engineering approach delivers smoother operation with noticeably less effort compared to traditional systems of similar load capacity.

Three High-Performance Lift & Slide Solutions

LS400 Slim & LS200 Slim
LS400 Slim & LS200 Slim

STAC introduces two core structural platforms in India: LS400 (including LS400 Slim) and LS200, each developed to meet different project requirements.

LS400 & LS400 SLIM

The LS400 is designed for heavy and large-dimension sashes, supporting substantial glazing weights while maintaining effortless movement. It offers completely vertical lifting and perfectly synchronised load distribution across all wheels.

The LS400 Slim version further enhances architectural minimalism, reducing visible profile dimensions and allowing for greater glazing surfaces—ideal for luxury residences, villas, and high-end commercial façades where transparency defines the aesthetic. With supplementary bogies, the LS400 system supports very high sash weights while preserving smooth and silent performance.

LS200

The LS200 system provides a robust and versatile solution for medium to large openings. It enables configurations of two to six sashes with various combinations of fixed and sliding panels, creating bright, open spaces with high manoeuvrability and user comfort. Designed for reliability and ease of use, LS200 offers exceptional performance for residential and premium apartment applications where both Aesthetics and functionality are essential.

Concealed Striker System – The Embedded Solution

In line with minimalist architectural trends, STAC offers a concealed striker system known as the Embedded Keeper. This solution allows the striker to be integrated directly into grooved frame profiles, hiding fixings behind frame covers. The result is a clean, uninterrupted visual line with no visible hardware elements disturbing the facade design. Manufactured in AISI 304 stainless steel, the embedded striker provides exceptional corrosion resistance, making it suitable for coastal and high-humidity regions across India.

Handle Design: DELTA And ATRIA

Beyond performance, STAC places strong emphasis on aesthetics and ergonomics, offering two distinct handle ranges for lift-and-slide systems.

Delta Series

The DELTA handle range reflects minimalist, functional design principles. Clean lines and integrated geometry ensure the mechanism blends seamlessly with aluminium profiles. The system is engineered for usability, prioritising intuitive operation and reduced visual bulk. DELTA handles are available in various finishes, including black, white, and custom RAL colours.

Atria Series

The ATRIA range is developed for contemporary transparent spaces where elegance and ergonomics must coexist. Available with or without locking options, ATRIA handles are designed to facilitate the manoeuvring of large and heavy sashes comfortably. The detachable design also allows for custom finishing, offering flexibility to architects and fabricators.

Built For Indian Conditions

All STAC components are treated to achieve high corrosion resistance in accordance with European standards, ensuring durability in coastal, humid, and extreme climate zones. The system incorporates advanced damping options such as SOFT-LIFT technology, enhancing user safety by preventing abrupt handle recoil during lowering. Additionally, STAC offers accessible drive solutions that reduce operating effort and allow lower handle positioning, supporting inclusive architectural design.

A New Benchmark For Lift & Slide In India

With the launch of STAC Lift & Slide systems in India, the market gains access to globally recognised engineering that combines minimalist design, structural strength, and effortless operation. From the heavy-duty LS400 and ultra-minimal LS400 Slim to the versatile LS200 platform, complemented by concealed embedded strikers and refined DELTA and ATRIA handle collections, STAC delivers a complete ecosystem for modern architectural enclosures. As Indian architecture moves towards larger openings and lighter visual structures, STAC stands ready to support the next generation of design with precision, performance, and reliability.

For More Information, Contact:

Doctor Window Pvt. Ltd.

Website: www.doctorwindow.com
Email: support@doctorwindow.com
Phone: +91-750-544-4444

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