Mechanical resistance

EN 1192 (EN 947, EN 948, EN 949, EN 950)

If a door is to remain functional over time, three points are vitally important:

  • Long Life+ protection
  • frequency of use
  • mechanical resistance

The latter guarantees resistance to impacts, loads and torsion so that the door remains functional (remains a door) and retains its compartmentalisation capacity.

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European standard of strength requirements
EN 1192

The European standard

European standard EN 1192 “Doors. Classification of strength requirements” provides a classification method for the performance of door leaves, frames, door sets, door sets assembled according to their resistance to vertical loads, static torsion, soft and heavy impacts and hard impacts. Special requirements, such as those for burglary resistance or safety requirements relating to glass infillings are not covered in this standard.

 

Improved Mechanical Resistance (IMR)

One of the basic performance features of Heinen Metal+ hung doors is class M+7 Improved Mechanical Resistance (IMR) to avoid premature ageing due to accidental or intentional impacts.

IMR is based on four tests described in standard EN 1192:

Resistance to vertical angular loads (MA)
A variable load is applied in the plane of the door leaf open at 90°, at the point furthest from the hinges.

Resistance to static torsion (MB)
A variable load is applied perpendicular to the door leaf when closed, at the bottom point furthest from the hinges.

Resistance to soft and heavy body impacts (MC)
A soft sphere, of fixed diameter and mass, suspended on a cable, collides with a vertical door set.

Resistance to hard body impacts (MD)
A hard sphere, of fixed diameter and mass, is released above a horizontal door set.

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Performance table

Standards EN 1192 EN 947
Vertical angular load		 EN 948
Static torsion		 EN 949
Soft and heavy body impact		 EN 950
Hard body impact
Symbols M MA MB MC MD
Operating method Mechanical resistance to a vertical angular load Mechanical resistance to static torsion Mechanical resistance to soft and heavy body impacts Mechanical resistance to hard body impacts
Mechanical resistance of a Heinen doorResistance class
Heinen		 Mechanical resistance classes M:
M1
M2
M3
M4		 400 N
600 N
800 N
1000 N		 200 N
250 N
300 N
350 N		 30 J
60 J
120 J
180 J		 1.5 J
3 J
5 J
8 J
Improved mechanical resistance M+*
M+5
M+6
M+7		 1400 N
1800 N
2000 N		 500 N
700 N
1500 N		 240 J
300 J
500 J		 15 J
25 J
40 J

*Additional classes available only in STS 53.

Heinen adapts its products to your needs

Mechanical resistance is just one of the many features of Heinen doors. Discover all the other exceptional characteristics that ensure security, comfort, and reliability for your projects!