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GN 7241 Multiple-Joint Hinges Aluminum, Concealed, Opening Angle 90°

GN 7241 Multiple-Joint Hinges, Aluminum, Concealed, Opening Angle 90°
Standard sheet GN 7241 Print this page Application video GN 7237 Operation instruction Multiple-joint hinges - General notes, Overview of types, Uses Multiple-joint hinges - Mounting information, Technical instructions Multiple-joint hinges - Accessories and special versions Multiple-joint hinges - Highlights Stainless Steel Characteristics

Product description

The multiple-joint hinge GN 7241 is installed on the inside of doors, flaps and hatches to save space and ensure protection against vandalism. The hinge has a maximum opening angle of 90°, making them perfect for use with thick doors.

Use of this hinge type leaves housing exteriors free of attachments that do not match the design or that should be avoided entirely in the interests of fast and easy cleaning.

Multiple-joint hinges are generally used in pairs. For higher loads, e.g. from large doors, these can be supplemented with additional hinges. Four reinforced washers are supplied, which can be used with fastening screws of thread size M6.

Specification

AluminumAL
Anodized, natural colorELEL

Hinge pins / washers
Stainless steel 304

Friction bearing
Plastic

  • Self lubricated
  • Temperature resistant -40 °C to 90 °C

RoHS

Accessory

Spacer Plates GN 7247.2
Plates GN 7247.4
Plates GN 7247.6

On request

Other finishes / colors
Other fastening flanges
Other opening angles
Other max. wall thicknesses
Other lifting motion

GN 7241 Multiple-Joint Hinges, Aluminum, Concealed, Opening Angle 90° sketch
Hide technical drawing
GN 7241 Multiple-Joint Hinges, Aluminum, Concealed, Opening Angle 90° sketch

Article options / Table
Show / Hide columns
l1d1d2h1h2l2l3l4l5l6l7l8l9m1m2m3m4m5rsxy
756,54603044,53051117,596,713,5108101,76184046287575229

Build & Price
Material

l1
Finish / Color
EL
Material

l1
Finish / Color
EL

Installation position - pivot characteristics

The multiple-joint hinges can be installed to the housing with the slots on the fastening flanges either parallel or perpendicular to the hinge axis. This results in the two pivot characteristics depicted.
MD7241{St:_}NA-24210-0

Examples of use
MD7241-NA-24367-0

Adjustment and fastening options
MD7241{St:_}NA-24725-0

The multiple-joint hinges can be adjusted in three planes during installation. For example, this allows adjustment for tolerances or establishing of required compressive forces for seals. Two planes can be adjusted via parallel or perpendicular slots in the fastening flanges. In the third plane, position corrections can be made using the spacer plates GN 7247.2.
Plates with tapped holes GN 7247.4 as well as plates with threaded studs GN 7247.6 are also available for fastening the hinges. The latter can be welded on or inserted through the wall from the outside and fastened in place. The holes d2 receive tensioning or positioning pins, making it easy to position the hinge. This also prevents unintended turning or slipping under load. The pins cannot be removed for subsequent adjustment.

Design variants

Doors, flaps and hatches can be inset, flush or mitered. The maximum wall thicknesses and bend sizes for sheet metal constructions given below arise from the respective installation type.

  1. Fastening flange mounted to the housing with slots parallel to the hinge axis:
MD7241{St:_}NA-24238-0
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l1s1 max.b1s2b2 max.s3 max.b3 max.
75301 ... ∞1 ... ∞303030

  1. Fastening flange mounted to the housing with slots perpendicular to the hinge axis:
MD7241{St:_}NA-24240-0
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l1s4 max.b4s5b5 max.s6 max.b6 max.
75301 ... ∞1 ... ∞303030

The design variants shown represent standard installation conditions. If the installation position of the hinge is changed or one of the two wall thickness dimensions is lower than s or b, the maximum achievable dimensions change independently of each other. This makes it possible in some cases to work with larger wall thickness dimensions than those specified with the same hinge size. A simple design check via CAD or a test setup is therefore recommended.

Example of an assembly
MD7241_AN-24279-1

Load capacity

The maximum load of the multiple-joint hinge specified below applies to the standard use cases and serves for orientation in the case of deviating applications. The resulting forces lead to slight elastic deformation, which can be compensated for by means of the adjustment options, if necessary.
MD7241{St:_}BL-24323-0
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Load capacity
per hinge pair in N
l1

FA (axial)

FR (radial)
75650750

Selected Part (How to order)

Total (net)
203,17 €
plus VAT 38,60 €
gross 241,77 €
In stock
Weight: 0,390 kg
If this article is new in our product range, it may happen that details concerning weight are as yet not listed.
If you do need weight details, please contact our Sales Department!
Phone +49 7723 6507 - 0
RoHS: Yes
This article is RoHS-compliant in application of Annex III., which means it complies with EU Directive 2011/65/EU, including extension (2015/863/EU), for restricting the use of certain hazardous substances in electrical and electronic devices. The Directive regulates the use of hazardous substances in devices and components. The implementation in national law is summarily described with RoHS(Restriction of (the use of certain) hazardous substances).
Customs tariff number
83021000
Please note our order discounts.
With a total value (net) per order:
from 175,00 € -> 10 % discount
from 275,00 € -> 20 % discount
from 375,00 € -> 30 % discount

Surcharge for small volume purchases:
-> 15,00 Euro
for value of goods less than 25,00 €
-> 10,00 Euro
for value of goods from 25,00 to 49,99 €
All prices in accordance with our price list No. 56, valid from 1 September 2024, plus VAT only valid for Germany.

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