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Alu lift and slide door - ALUPROF MB-77

The premium alu system

from 4,087from 4,087

incl. 19% VAT, free delivery**

  • 174 mm construction depth
  • Continuous seals
  • Slim-look profile
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Estimated production time 6-9 weeks1

Overview of features

Modern aluminium system

Durable, sturdy material

High levels of security and break-in protection

High levels of thermal insulation and energy efficiency

A wide variety of functions

Special construction with corner coupling possible

Customer satisfaction

Over 200,000 happy customers and counting

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Technical details

ALUPROF MB-77 - system description

  • 174 mm frame depth / 77 mm sash depth
  • Broad heat barriers, polyethylene inserts and uPVC profiles
  • Weatherproof thanks to continuous pane and compression seals
  • Glass strips with a closed shape for increased break-in protection
  • Standard glazing with a Ug-value of 1.1 W/m²K
  • Triple glazing with a Ug-value of up to 0.6 W/m²K
  • Siegenia-Aubi HS-PORTAL 300KF*
  • Built-in construction with corner coupling possible**
  • High basic security with two locking bolts as standard
  • Option to include thermal insulating glass, security glass and noise control glazing
  • Effortless opening and closing, even with heavy sashes
  • Concealed locking technology with a swivel hook gear
  • Highly windproof and driving rain-proof
  • More light in your home with a large area of glass


  • Additional break-in protection with security fittings rated up to RC2 N
  • Integrated multipoint locking system, lockable from inside and outside
  • Lock monitoring

* if the weight of the sash exceeds 300 kg, we use hardware from a manufacturer of the same or higher quality
** for special constructions that feature corner coupling, please contact our customer service team on 0711 860 600

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The lift and slide door profile

ALUPROF MB-77 - The advantages in detail

The ALUPROF MB-77 combines functionality, design and security in one outstanding door system. A variety of customisation options make the aluminium lift and slide door the perfect fit for your home. It creates a harmonious connection with your terrace, balcony or garden.

Reliable security for your home

The resistance class (RC) indicates the level of security your lift and slide door will provide. The ALUPROF MB-77 system can be rated up to RC2 N. This means that the ALUPROF MB lift and slide door can withstand external attacks from basic tools for at least three minutes. This makes class RC2 N a good choice for private homes, as the majority of opportunistic thieves will leave a property within this period of time if their attempts to break in are unsuccessful. The MB-77 also features six burglar-resistant hardware fittings as part of this resistance class.

Reduce your energy bills with efficient thermal insulation

Methods of thermal insulation are improving all the time, and insulation concepts for windows and doors are becoming increasingly important. You can find out more about insulation levels by looking at the heat transfer coefficient (a.k.a. the U-value). The MB-77 from ALUPROF has a frame construction with Uf-values starting from 1.4 W/(m²K). This is complemented by its Uw- value, which comes in at less than 1.1 W/(m²K) with the appropriate glazing. This overall value is not only of relevance with regards to various regulations and such legislation as the German Buildings Energy Act, but can also be of importance when applying for subsidies and allowances. In general, lower U-values indicate that an architectural feature has better thermal insulation and will let less heat escape when closed.

Stylish design

With its clean, modern design, the ALUPROF MB-77 fits seamlessly into modern new builds and existing properties alike. The door system's discrete jambs fit with the overall look and also make the glazing appear larger, creating a stylish connection between the interior and exterior spaces. The ALUPROF MB-77 features a combination of:

  • linear design
  • high-quality manufacturing
  • modern sashes

This makes it perfect for use in a huge selection of different environments, ranging from urban landscapes to natural surroundings – this is due to the ideal combination of simple elegance and superlative technical execution it provides.

Lift and slide door ALUPROF MB-77

The ALUPROF MB-77 aluminium profile is available with a frame depth of 174 mm and is sure to impress with its combination of durable material and a modern look.

ImageProfileModelProduct TypeWidthHeight
MB-77ALUPROF MB-77Lift and slide door from 200 cm from 180 cm
windows24.com available New White from € 4,087
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