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GN 437.3

Types

  • Type L2: Spring-loaded return, closing, medium spring force
  • Type R2: Spring-loaded return, opening, medium spring force

Zinc die casting ZD

plastic coated

black, RAL 9005, textured finish SW

silver, RAL 9006, textured finish SR

Spring guide / Cover cap

Plastic (Polyacetal POM)

temperature resistant up to 80 °C

Torsion spring

Spring steel

GN 437.3 Hinges with a spring-loaded return allow doors to be automatically opened and closed by means of the torsion spring.

The return torque varies with the hinge opening angle. Endurance tests have shown that the torque does not change even after 100,000 opening / closing cycles.

The following table shows the relationship between the opening angle and return torque.

Return torque MR ± 10% in Nm
0°90°180°270°
0.250.50.751

  • Plastic characteristics 

  • Stainless Steel-Spacer plates GN 2370
  • Stainless Steel-Plates with tapped holes GN 2372

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