A86US - Aluminum windows

Hidden Casement system

Thermal insulation Uf

> 1,03 W/(m2K)

Air tightness window

class 4,PN-EN 12207:2001


class E 1350,PN-EN 12208:2001

Wind tightness

class C5,PN-EN 12210:2001

The A86US system is used to make different types of windows, balcony doors, porches, shop windows and spatial structures, which characterise very good thermal and acoustic insulation and high air and water tightness.

The window features that a vent profile is hidden behind the profile of the window outer frame, and surfaces of mounted glass panels in active and fixed profiles are on one plain. Thanks to that external opening and fixed panels look identical.

Share on facebook
Share on pinterest
Share on linkedin


  • Key features
  • Technical Specifications
  • Performance
  • large selection of profiles
  • newly shaped, extra thick thermal breaks
  • multi component central gasket
  • glazing strips with additional sealing option
  • glazing up to 67,5 mm enabling all types of three chamber glazing, acoustic and security, anti burglary glazing
  • large, wire-free glass areas
  • appropriate for variety of hardware including concealed hinges
  • water draining available in both traditional and concealed options
  • highly energy efficient from 0,5 W/(m2K)
  • clean, sharp lines of narrow extruded aluminum framing
  • multitude of finish options 
  • IG of up to 3 1/8”


Depth of frame2.75"
Depth of leaf3 3/8
Glazing rangeframe: up to 2 5/16
sash: up to 2 11/16

Size & Weight Limitations

Maximum size (H×W)H to 98  1/3 W to 63
Max weight lbs330
Air Permeabilityclass 4,PN-EN 12207:2001
Watertightnessclass E 1350,PN-EN 12208:2001
Thermal insulation (Uf)MB-86US ST od 1,03 W/(m²K)
Windload resistanceclass C5,PN-EN 12210:2001


We offer high variety of Aluminum windows and doors. Every order is custom made according to our customers requirements. Our modern construction solutions make it possible to create extremely large g lazed areas and improve building design and interior décor not available with most of our competitors, for example 25’ W x 9’H lift and slide doors. We have almost an unlimited potential in terms of both colors and their different shades for our aluminium components. Another key benefit for our products are the components utilizing multi point locking. This is achieved through a link gear running around the window sash, which operates pins which in turn lock into keepers located around the perimeter of the sash opening. Depending on the size of sash used, there can be up to twelve locking points on any one sash. In doors a six-point lock is used. This comprises of four compression roller pins, one latch and one dead bolt. All the locks on any one sash are operated by one lever and secured by one key. Further this creates insulating advantage as an even sash seal is achieved as well as enhanced security. Pleae note we can perform the installation or assit our customer in an installation consult capacity.


GET a quote

Eco Windows USA provides top quality window and door solutions in Brass, Steel, Aluminum, Wood and PVC. With a capacity of producing over 5000 windows per day our systems are highly customizable, allowing for almost unlimited possibilities to arrange elevations and building interiors for both residential and commercial use. Our brand of window and door carpentry is produced by combining precisely selected materials, premium German hardware, latest technologies and long-term experience in production. We provide CAD design support as well as complete installation services.