Three Independent Tracks for Wider, More Flexible Sliding Openings
This thermal break aluminum sliding window uses three parallel tracks, allowing three or six sashes to move in a layered horizontal configuration.
The system is suited to wide residential openings, apartments, villas, townhouses, and light commercial projects where more sliding panels and a larger opening area are required.
Why Use a Three-Track Aluminum Sliding Window?
The third track creates more panel movement and a wider usable opening without changing the familiar horizontal sliding operation.
Three Parallel Tracks
Three independent tracks allow multiple sashes to stack more efficiently and create a wider opening than a standard two-track window.
Three-Sash or Six-Sash Layouts
Choose a three-track three-sash configuration or a larger three-track six-sash window for broad wall openings.
Wide Sash Proportions
Each sash can be produced from 600–1500mm wide and 550–1800mm high, supporting generous glazing areas.
120kg Sash Capacity
The system supports up to 120kg per sash for larger Low-E insulated glass panels.
Thermal Break Construction
A 14.8mm thermal break strip separates the interior and exterior aluminum sections to reduce direct heat transfer.
Fixed Screen Options
Fixed stainless steel mesh or aluminum mesh can be added according to the project ventilation and insect-control requirements.

Designed for Wide Multi-Sash Window Openings
The three-track layout, sash count, screen, insulated glass, hardware, color, and installation method can be coordinated from the project drawings.
Product Configuration
Project Performance References
BTU/(h·ft²·°F)
Our Strength
1. Checking & Alignment
2. Cutting & Punching
3. Milling Holes
4. Assembly
5. Glass Assembly
6. Packaging
7. Delivery
8. Installation
Drawing & Engineering Review
Sample Support
Quality Inspection
U.S. Showrooms
48-Hour On-Site Support
Warranty Service
NFRC
CSA
ENERGY STAR
ISO
Compare the Three Aluminum Sliding Window Systems
The main differences are track count, profile thickness, sash capacity, glass capacity, and project application.
| Comparison | Standard Two-Track Sliding Window | Heavy-Duty Two-Track Sliding Window | Three-Track Sliding Window CURRENT |
|---|---|---|---|
| Track Layout | Two tracks | Two tracks | Three tracks |
| Profile Thickness | 1.4mm | 2.0mm | 1.4mm |
| Sash Size | 600–1500 × 550–1800mm | 350–1200 × 300–2050mm | 600–1500 × 550–1800mm |
| Sash Capacity | 120kg | 55kg single / 140kg dual roller | 120kg |
| Standard Glass | 5 Low-E + 9 Ar + 5 | 5 Low-E + 12 Ar + 5 | 5 Low-E + 9 Ar + 5 |
| Maximum IGU | 21mm | 26mm | 21mm |
| Water Resistance | 200Pa | 450Pa | 200Pa |
| Wind Pressure | ≤3000Pa | ≤4000Pa | ≤3000Pa |
| Best Fit | Standard residential openings | Larger and more demanding openings | Wide multi-sash openings |
Frequently Asked Questions
What are the main advantages of this three-track sliding window?
The third track supports three- or six-sash layouts, allows more panels to stack, and creates a wider usable opening while maintaining simple horizontal operation.
Does this window include a sliding screen sash?
The latest standard specification lists fixed stainless steel mesh or aluminum mesh options. The screen configuration should be confirmed from the project drawings before production.
What should I send for a quotation?
Send drawings, rough opening sizes, BOQ or a window schedule, quantity, project location, glass, color, screen option, and delivery target to info@amjbm.com.
What is the minimum order quantity?
We offer flexible MOQs. You can order sample sets for evaluation, and competitive tiered pricing is available for full container load (FCL) project orders.
What are the typical lead time and warranty?
Standard production can start from approximately 25 days after drawing and material approval. Larger customized projects commonly require 30–55 days. The standard warranty is 7 years.
Start Your Three-Track Sliding Window Project
Send your drawings, BOQ, window schedule, or rough opening sizes for track layout, glass, screen, installation, and project pricing review.
Foshan AMJ Windows and Doors Co., Ltd. 