HAHN Gasfedern double-stroke gas spring, two force ranges, hatches up to 800 kg

The HAHN Gasfedern double-stroke gas spring (Doppelhub) is designed for flaps that need significantly different forces at the beginning and end of the stroke. The unit consists of two cylinders with different filling pressures and provides two matched force ranges. Retracting the rod produces a curved characteristic calculated for the hatch kinematics.

As a result, even a heavy lid weighing up to 800 kg can be opened manually through a large angle without overloading the operator at the dead points. Versions: steel, V2A and V4A stainless steel. Series and sizes per HAHN catalogue; force is calculated from mass, lever arm and angle. Protective tubes, seals and special damping options are compatible.

Key features:

• Two forces in one unit instead of a compromise linear characteristic
• Easier to start a heavy hatch and to bring it to the end
• Up to 800 kg with manual opening through a large angle
• Steel and V2A / V4A stainless steel

Specifications:

• Design: two cylinders with different pressure, two force ranges
• Characteristic: curved force curve matched to hatch kinematics
• Load: manual opening of heavy hatches up to 800 kg
• Material: steel; V2A; V4A
• Calculation: force ranges agreed individually

Application: Heavy process hatches, hopper and tank lids, special machine flaps, ship deck hatches with a large opening angle.

Before ordering: Before ordering, provide hatch mass, lever arm, opening angle, mounting points and operating environment — the force is calculated individually.