Sliding windows have become a staple of modern architecture because they open sideways instead of swinging into the room or out onto the wall. Because the sash travels along horizontal tracks, a sliding window keeps the floor and the counter space completely free, which makes it a natural choice for balconies, kitchens, living rooms, offices, and any space where every centimetre matters. ALPES, a sliding window supplier and system door manufacturer in China, builds its modern aluminium sliding windows and doors on a single principle: engineering the quiet, airtight movement of a large glass panel without sacrificing strength. This catalogue walks through the sliding window family ALPES produces today, from the space-saving TS130 side-press window to the panoramic thermal-break sliding doors, and explains what to look for when you compare options.
Before looking at individual models, it helps to understand why aluminium wins out in high-end projects. Because a sliding sash must slide on two narrow tracks, the profile has to stay true under load. ALPES manufactures its frames from 6060-T66 aluminium profiles with a wall thickness of 1.8mm to 2.5mm, a grade that combines the strength of structural aluminium with a clean, slim sightline. Where standard budget windows are pressed from softer alloys and thin walls, this stronger profile resists deformation on wide openings, so the sash keeps gliding smoothly for years rather than sagging and starting to bind. On the energy side, aluminium is known as a conductor, which is exactly why ALPES fits multi-chamber thermal-break systems with PA66GF25 insulation strips. By sitting a low-conductivity strip between the inner and outer frame halves, the window keeps the cold on the outside and the warmth on the inside, helping rooms hold their temperature in both summer and winter.
The flagship of the sliding range is the TS130 side-press window, named for its 130mm frame wall. It combines the smooth operation of a sliding window with a sealing system that borrows from casement windows. Most sliding windows seal loosely simply because the sash has to move, but the TS130 uses side-pressure rubber sealing strips the way a casement does, delivering superior airtightness while the sash still opens along its track. Everything about it is built to feel solid: German ROTO hardware drives the eight-point locking system, four-sided continuous sealing strips run along the frame, and the pulleys are load-rated at 200kg so even a large sash slides without effort. The window is available as one fixed plus one movable sash, or a fixed centre panel with sliding panels on both sides, and it opens without taking up indoor space. The 1.8-2.0mm 6060-T66 profile keeps the frame straight, and the screen mesh (a 40# or 80# stainless-steel mesh, or a black high-definition anti-PM2.5 mesh) is built in, so you get ventilation and insect protection in one profile.
A feature buyers often overlook is how flexible the TS130 is. Optional configurations add an inward-opening sash mesh, an integrated glass railing, an anti-theft grille, or an inward- and outward-opening mesh. That means a single window system can serve a kitchen sash, a balcony guard, or a security window. If you are sourcing this for a villa project and want a sliding window that seals like a casement, this is the model to request a sample of.
While the TS130 covers windows, the larger part of the range answers the question of how to open a whole wall. ALPES produces several sliding door systems, all sharing the same 6060-T66 aluminium platform, thermal-break construction, and German hardware. Here is how the four core sliding doors compare.
The SL155 is the workhorse of the range, built for everyday strength with a 2.2-2.5mm load-bearing profile that meets the new national standard. Its standout engineering point is the passive check-valve drainage: when rain hits the sill, the valve accelerates water out of the track while preventing any backflow, which is exactly what you want in a door that faces the weather year-round. The four-side sealing system and recessed sash design sharpen both waterproofing and the seal between the moving panels. For large openings, the single-panel double-rail pulley system runs 20 wheels in a self-balancing arrangement rated to 400kg, and a single sash can reach 2800mm wide by 2600mm high with an opening of up to 7.5m². If your project calls for an unusually wide or tall sliding door, this system keeps the panels aligned instead of letting them twist under their own weight.
Where the SL155 owns everyday strength, the SL112/167 is the multi-tool. It handles single-, two-, or three-track configurations (112mm for single or two tracks, 167mm for three), with a frame-enclosing-sash structure that interlocks the panels for extra stiffness. A 45mm high-ｄｒｏｐ bottom track drains water instantly, and an optional 85mm water barrier is available for floors that take heavy rain. The sash is driven by a system rated to carry 220kg per sash, and the unit runs on 24A insulated glass. Because it works as either a door or a large window, this is a popular choice when architects want one system to cover both a glass door and a fixed window wall on the same facade.
The SL126/182 family is the panoramic option, produced in two edge widths. The (96) version runs a 96mm sash width and lets a single sash open to around 2.5m by 3.0m, giving roughly 7m² of daylight in a seamless, pressure-line-free frame. The (75) version narrows the sash to a 75mm ultra-slim central interlock, which maximises the glass area for unobstructed views. Both are locally reinforced up to 3mm in critical zones for strong wind-pressure resistance, and both can be specified as lift-sliding, so the panels lift slightly before they slide and glide on a cushion of air rather than grinding on the track. A continuous four-side sealing system with a top-track sealant and a patented eave-style waterproof profile keeps these oversized doors weathertight. The (75) version also carries 27A super-large insulating glass with inert-gas filling for better thermal performance on very wide openings.
Every window and door in this catalogue shares the same building blocks, which makes sourcing predictable across a whole project. The profile is always 6060-T66 aluminium from 1.8mm upward, with a multi-chamber thermal-break system and PA66GF25 insulation strip, and premium models reach K-values as low as 1.3. The hardware comes from established German and European makers: ROTO transmission boxes and anti-pry lock points, Winkhaus full hardware sets with more than a century of engineering behind them, CMECH handles that have been through 30,000 opening cycles, and Wehag as a premium upgrade. The colour range covers Ice Cream White, Aurora Gray, Starry Sky Gray, and Brown Coffee, with custom colour matching available on request, and the glass can be configured across multiple insulated options. Because these are driven by the same platform, an aluminium sliding window manufacturer like ALPES can match colours and profiles across casement windows, sliding windows, sliding doors, and tilt-and-turn units so the whole facade reads as one cohesive design.
Start with the opening size. For a window in a kitchen or balcony, the TS130 is the right call, since it gives casement-grade sealing in a sliding footprint and its built-in mesh keeps insects out. For a doorway between a living room and a terrace, move to the SL155 for the strongest everyday performance, or to the SL126/182 (75) when the whole point is a panoramic, ultra-slim view. For a heavy multi-use opening that doubles as a door and a window, the SL112/167 offers the most flexibility in configuration. If the site faces coastal weather or high wind loads, ask for the locally reinforced panels and the lift-sliding option, since both add stiffness and smooth operation on big glass. Finally, define your finish early, because the colour and glass options affect the look of the whole facade.
ALPES works from a 100,000m² manufacturing base split between Foshan and Zhaoqing in Guangdong, China, and exports to residential and commercial projects across the Middle East, Australia, and beyond, including luxury villa projects in Saudi Arabia and Dubai. Ordering a sliding door supplier and window system together from one factory means profiles, thermal-break strips, hardware, colours, and glass all come from the same production line, so the parts match and the delivery schedule is one. ALPES manufactures to international building codes, offers competitive direct-from-factory pricing, and invites buyers to order samples before committing. For a full set of technical drawings, dimension tables, and the latest product sheets for both the TS130 window and the SL series sliding doors, contact the factory directly and ask for its current sliding window and door catalogue.
