Casement Window with Operator Handle (ATIS)
Tostem Casement Window with Operator Handle (ATIS)
The Tostem Casement Window with Operator Handle (ATIS) is a premium aluminium casement window system from the ATIS series by TOSTEM — designed to combine refined aesthetics, smooth operation, and high performance for modern architectural applications. Built with precision-engineered aluminium and advanced hardware, this window solution enhances ventilation, comfort, and design in residential and commercial spaces.
What is Tostem Casement Window with Operator Handle (ATIS)?
A casement window with operator handle from TOSTEM’s ATIS series is an outward-opening aluminium window that uses a user-friendly handle mechanism for effortless operation. It provides wide ventilation, enhanced air control, and a sleek profile that matches contemporary building facades. Engineered for durability and performance, this system is suitable for homes, offices, hotels, and other environments where comfort and design are key.
Key Features
Smooth Operator Handle: Ergonomically designed handle for easy opening and closing.
High-Quality Aluminium Frame: Durable, corrosion-resistant construction for long-lasting performance.
Streamlined, Minimalist Design: Slim profiles and clean sightlines that complement modern architecture.
Smart Insect Screen: Optional insect screen that allows airflow while keeping insects out (availability may vary).
Multiple Colour Options: Available in finishes like Natural White, Natural Silver, Shine Grey, Autumn Brown, and Natural Black.
Efficient Ventilation: Full outward opening for maximum fresh air and natural ventilation control.
Safety Features: Designed for secure operation with reliable hardware and optional safety stoppers.
Applications
The ATIS Casement Window with Operator Handle is ideal for a wide range of applications:
Residential Buildings: Living rooms, bedrooms, kitchens, and utility spaces
Commercial Spaces: Offices, retail spaces, and meeting rooms
Hospitality Projects: Hotels, resorts, and guest rooms
Low-rise Apartments & Villas: Enhancing ventilation and aesthetics
Utility Areas: Spaces requiring efficient ventilation and weather protection
Its excellent airflow control and design adaptability make it suitable for both new constructions and renovation projects.
Technical Specifications
| Specification | ATIS Casement Window (Operator Handle) |
|---|---|
| Frame Depth | 88 mm |
| Height of Sill | ~55–65 mm |
| Glass Thickness | 5 / 6 / 8 / up to 15.52 / 22 mm |
| Wind Pressure Resistance | JIS: ~1200 Pa / ASTM: up to 2000 Pa |
| Water Tightness | JIS: ~250 Pa / ASTM: ~300 Pa |
| Air Tightness | JIS: A-4 (2) / ASTM: ~10.7 m³/h·m² |
| Noise Insulation | ~25 dB |
| Insect Screen | Smart Screen Available |
| Colour Options | White, Silver, Grey, Brown, Black |
Benefits – Why Choose Tostem Casement Window with Operator Handle (ATIS)?
1. Enhanced Ventilation & Airflow
Casement windows open outwardly, offering unobstructed ventilation that improves fresh air circulation and indoor comfort — great for living rooms, kitchens, and bedrooms.
2. Ergonomic Handle Operation
The operator handle design ensures smooth, effortless window movement — easy for users of all ages and abilities.
3. Durable and Weather-Resistant
Constructed from high-grade aluminium, the ATIS window resists corrosion, warping, and harsh weather over time — ensuring longevity with minimal maintenance.
4. Stylish Design
With sleek profiles and modern finish options, this casement window enhances the visual appeal of interiors and exteriors alike without compromising on performance.
5. Performance Tested to Standards
Performance ratings for wind resistance, airtightness, and watertightness ensure reliable operation and comfort under different environmental conditions.
6. Optional Smart Features
Smart insect screens and quality gaskets enhance airflow without letting insects or dust enter, adding to user comfort.
7. Low Maintenance
Aluminium frames require little upkeep and maintain their finish over years, making ATIS a cost-effective fenestration solution.


