Aluminium Sliding Doors Ultraglide

Brand: Aliplast
What you get
  • The maximum weight of the leaf: 400 kg and the maximum width of the leaf: 3200 mm
  • Frame installation depth: from 153 to 239 mm
  • 3, 5 and 7-chamber door frame
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Lead time: up to 8 weeks Find out more

Guarantee included at purchase Find out more


The well-insulated system for designing Lift&Slide doors that ensures perfect interior lighting. Thanks to its construction, it allows for the production of large, yet stable constructions. The system is adapted to the latest requirements in the field of thermal insulation, aesthetics and safety. Recommended both for installation in public facilities and residential buildings.

Ultraglide – benefits

  • Two types of window frame: 2-rails/ 3-rails
  • The depth of the frame: 153 mm (with double running rail profiles) or 239 mm (with triple running rail profiles)
  • Maximum sash dimensions: 3200 mm x 3300 mm
  • Fittings – lift&slide system: up to 400 kg (single sash)
  • Sash depth: 67 mm
  • Burglary resistance: RC2
  • Low aluminium threshold with a thermal barrier
  • Glazing units up to 52 mm wide
  • The profiles allow the assembly of both single and double-chamber packages
  • Structure construction – door frame: 3, 5 and 7 chamber system (according to the latest thermal insulation requirements)
  • The use of a thermal break made of aluminium and glass fibre addition
  • Thermal breaks of 22 or 28 mm width
  • Available system options – version UG, UG i, UG i+


Depth of the frame [mm]153 - 239
Maximum thickness of the glazing unit [mm]52
Wind resistanceC2
Water resistance1A
Air permeabilityClass 2
Specification - Read more

Wind resistance

It is one of the most important properties of windows and doors. It determines the safety of the entire structure, as it indicates the amount of pressure caused by wind that the window or door structure is able to resist without serious damage. The classification of wind-resistant windows and doors is carried out in accordance with PN-EN 14351-1. The wind load resistance of the window is described by two symbols: the number (1-5) which indicates the pressure of wind applied to the product and the letter (A-C) which indicates the amount of accepted deflection.

Thickness of the glazing unit

A glazing unit is a structure consisting of two, three, or even four panes of glazing separated from each other by a distance frame, sealants and vapour-absorbing gas (argon \ krypton). The thickness of the glazing unit is the overall measurement, from the outside glass surface to the inside glass surface. The average double glazing thickness is about 24 mm while triple-glazed windows are 42 – 48 mm in thickness on average. The number of panes in a glazing unit affects the improvement of the U-value parameter

Water resistance

It is the capacity to avoid water leakages under wind and rain at the same time. Leakage is defined as the appearance of uncontrolled water (other than condensation) on the inner surface of the product. Obviously, the doors and windows with good waterproof performance can effectively prevent water from entering into their internal structure and – as a result – ensure a longer service life. The classification ranges from Class 0 (no test) to Class 7A for windows and Class 3A for doors.

Air permeability

It is the measurement showing how easily air can pass through a window or a door. The European Standard regarding air permeability in windows and doors is EN 12207. It classifies windows or doors according to their capability to prevent air travel through the system. This capability is measured on a scale, from Class 1 (less tightness) to Class 4 (higher tightness). A window or a door system with a higher level of air tightness is more energy-efficient, as less heated air escapes through it.

Depth of the frame

A very important dimension, saying a lot about sliding doors quality and functionality. The depth affects the sound insulation, thermal insulation (U-value) and stiffness of the structure. To put it simply: the bigger the depth, the warmer the sliding doors.

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