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16/11/26
Window accessories in a PVC window aren’t just handles and hinges — they’re a whole system of mechanisms that literally bring the structure to life: they let you open and close the sash, fix it in different positions, press it tightly against the frame for airtightness, and even protect against break‑ins. It’s the accessories that determine how convenient and safe it will be to use the window every day.
The core of the system is the locking mechanism with cam pins (eccentrics) that engage with the strike plates on the frame. The tightness of their fit determines the pressure force of the sash: the better the pressure, the fewer drafts and noises there are. Modern windows often feature adjustable cam pins: they let you change the pressure level depending on the season — tighter in winter, slightly looser in summer.
Hinges and friction arms (scissors) are responsible for smooth movement and sash stability. High‑quality hinges support heavy sashes without sagging over time, while friction arms provide ventilation modes: regular swing‑open, tilt for micro‑ventilation, and step‑by‑step fixing — with the sash held in several positions. This is especially convenient in transitional seasons when you want fresh air without a strong draft.
An important element is the misoperation blocker: it prevents the sash from being simultaneously swung and tilted, which avoids damaging the mechanism. In children’s rooms and on high floors, opening limiters and anti‑burglary cam pins are indispensable — they increase safety without reducing convenience.
Accessories’ durability depends on the material and coating. The best options are galvanised steel with an anti‑corrosion layer: it resists humidity and temperature fluctuations. Cheaper alternatives quickly rust and start to jam, and adjustments become impossible.
Ergonomics matter too. A comfortable handle, smooth motion without jerks, and clear locking clicks all contribute to a sense of reliability. Good accessories last 15–20 years but need minimal maintenance: once a year, hinges and mechanisms should be cleaned from dust and lubricated with a special lubricant.
In short, accessories are the “invisible conductor” of the window: they quietly coordinate all sash movements, ensuring comfort, safety, and a long service life for the structure.

Which kind of windows would you prefer If you were going to replace the old ones in your house or apartment?