Nitus | Roller doors






Roller doors

Roller garage doors are characterised by a wide range of applications due to their possible installation both indoors as well as outdoors. This offer is ideal for Clients who have small-size garages. The space inside the garage is economised owing to an installed roller box which holds the retracted door panel.

General information:

  • door shell is made of aluminium profiles, which makes it fully resistant to corrosion
  • shell panels dim. 77 x 18.5 mm are filled with polyurethane foam
  • roller box of the gate is an effective protection of the drive system against weather conditions
  • as a standard they come with an electric tube drive, equipped with a mechanism for emergency crank opening
  • it is possible to use glazed panels if requested explicitly by the Client
  • inertial brake in standard version

technical specification

Information

Roller garage doors are intended for use in garages, utility rooms, halls, all applications that do not require intensive exploitation of the doors. Roller garage doors are characterised by a wide range of applications due to their possible installation indoor as well as outside a closed room (before the door opening) and in the opening clearance. The door’s roller box is an effective protection of the drive system against weather conditions. Roller box, shell and guides of roller doors are made of aluminum, which makes them fully resistant to corrosion.

The door typically includes an electric tube drive 230 V equipped with NHK mechanism for emergency opening in case of power supply or drive failure. The door can be additionally equipped with control elements, i.e. radio control, protection, etc.

Door structure

Roller door structure:

a) Door shell

  • aluminium profiles 77 mm high
  • bottom strip with a seal

b) Load-bearing unit:

  • aluminium guides
  • roller box enclosed on the whole width
  • additional load-bearing elements

c) Drive unit:

  • roller shaft
  • electric drive with NHK system

Door shell

Door shell is made of aluminium profiles 77 mm high and 18.5 mm thick. The profiles are coated with lacquer of high abrasion resistance. The profiles are filled with CFC-free polyurethane foam. Individual profiles in the door can be replaced with glazed or ventilation profiles (for an additional charge). The lower door profile is in standard version replaced with a bottom strip with a rubber seal.


Profile height

77 mm

Profile width

18.5 mm

Profile weight

5 kg/m2

Filling

polyurethane foam

Load-bearing unit

Guides and door box are made of aluminium and aluminium alloys. The guides are fitted with brush seals. Two types of boxes are used in garage doors:

Box 300 - with fixed bearings

Box 360 - with drive console

The type of the box applied depends on the door size.

Door parametres

Dimensional limits:

  • maximum door width: 5400 mm
  • maximum door height: 4400 mm
  • maximum door area: 16 m2

Permissible door height is reduced with the increase of width, according to the table in the pricelist!

  • B - width of the opening
  • H - height of the opening
  • Hp - height of the door clearance
  • Bp - width of the door clearance
  • h - lintel
  • W1- reveal
  • W2 – reveal
  • FFL – finished floor level

Installation

On the wall behind the door opening

In case of installation on the wall an adequate space for guides shall be foreseen from the inside on both sides of the opening and the lintel must provide enough space for the box.

For B > 4200 the door width is increased by 300 (B + 300)


 

Door with box 300

Door with box 360

Lintel (h)

300

360

Reveal (W1, W2)

90

90

Door clearance (Hp)

H-20(1)

H-20(1)


On the wall before the door opening

In case of installation on the wall an adequate space for guides shall be foreseen from the outside on both sides of the opening as well as the space for the box above the opening.

For B > 4200 the door width is increased by 300 (B + 300)


 

Door with box 300

Door with box 360

Door clearance (Hp)

H-20(1)

H-20(1)

(1) - the door clearance height determines the setting of limiting switches in the motor


In the opening clearance

The whole guide as well as the box are located in the opening clearance, which reduces the actual passage clearance both as regards the width (by the width of installed guides) and the height (by the height of the installed box with the beneath limiting strip).

For B > 4200 the passage clearance is reduced by 300 (B - 300)


 

Door with box 300

Door with box 360

Door clearance (Hp)

H-320(1)

H-320(1)


Description of the door in standard version

  • installation of the door from the inside
  • door profiles T77 18.5 mm thick, lacquer-coated, filled with CFC-free polyurethane foam
  • frame in standard colour (white/brown)
  • box 300 or 360 according to the table in the price list
  • steel roller shaft with a diameter of 70 mm or 125 mm, depending on the size
  • spacer rings on the roller shaft
  • electric tube drive NHK with emergency opening (installed on the right-hand side when looking at the box)
  • internal surface-mounted key stop switch
  • crank with a hook 1.4 m long
  • inertial brake in standard version

visual specification

Frame colours of garage roller door

  • box 300 and 360
  • guides

Colour

Similar to RAL

White

9016

Brown

8017/8019


Colours of door profile T77

Colour no.

Colour

RAL*

01

White

9010/9016

02

Light grey

7038

03

Brown

8014

04

Light beige

1001

07

Silver

9006

27

Cream-white

9001

84

Ivory

1015

13

Moss green

6005

14

Purple

3004

30

Jamaican brown

8017/8019

12

Teak

-

22

Golden oak

-

38

Anthracite grey

7016

* colour similar to RAL

GLAZING

Aesthetic appearance and functionality of roller doors can be enriched with glazings that enable better illumination of the garage interior.

Profil przeszklony - brama roletowa

Profile with a glazing


Projekt i wykonanie   Virtual3D
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