New InfiniSpring® Acoustic Direct Hanger decouple ceilings and cut off noise from around 13 Hz upwards. Figure 1 below shows the new InfiniSpring® Acoustic Direct Hanger 60-7kg (ADH60-7kg) design.

Figure 1. InfiniSpring® – Acoustic Direct Hanger ADH60-7kg

InfiniSpring® Acoustic Direct Hanger 60-7kg is equipped with a 5 mm center hole for the ceiling anchoring. On the lower side InfiniSpring Acoustic Direct Hanger 60-7kg has nail plates to connect to GK60 steel profile or lumber. Nail plates are turned 90-degrees after the anchoring for connecting it. Figure 2 below shows the bent nail plates.

Figure 2. InfiniSpring® – Acoustic Direct Hanger ADH60-7kg with bended nail plates

Designed InfiniSpring® Acoustic Direct Hanger 60-7kg is for nominal loads up to 7 kg. For the overloads the acoustic direct hanger is equipped with integrated movement limiter. As the load increases above 10 kg the movement limiter grounds. InfiniSpring® Acoustic Direct Hanger 60-7kg spring even fits inside the GK60 mm ceiling profile and allows extremely low suspended ceiling heights. Figure 3 below shows the spring inside the profile.

Figure 3. InfiniSpring® – Acoustic Direct Hanger ADH60-7kg fits into the GK60 mm ceiling profile

The new Acoustic Direct Hanger 60-7kg offers high-level acoustic isolation performance, and it is all steel product. InfiniSpring Acoustic Direct Hanger 60-7kg functions perfectly for soundproofing ceilings and even acoustic walls. It is also perfect product for supporting ducts or piping flexibly. In case you have any questions or want to know more please do not hesitate to contact us.

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First the ceiling weight (kg/m2) is defined by calculating the plasterboard total area density (kg/m2) by summing up the plasterboard weights. As the ceiling weight (kg/m2) is known below table gives the support distances P and T for the InfiniSpring® acoustic hangers. 

Support distances P and T are shown in the below picture. Also maximum allowed support distances A, P and T for GK 60 mm ceiling system are shown below. Distance P is the distance between the upper ceiling profiles. Distance T is the distance between the acoustic hangers in the ceiling profile. Distance A is the distance between the lower ceiling profiles.

Using previous support distances the suspended ceiling can be assembled. In case of heavy objects additional hangers are needed, but they can be simply added close to the objects. InfiniSpring® acoustic hanger can take loads up to 25 kg and for example a 50 kg speaker requires two additional InfiniSpring® acoustic hangers close to the speaker location.

Example: a 7m x 10 m size ceiling utilizes two layers of plasterboard with following area densities: 1 x 10 kg/m2 and 1 x 15 kg/m2. How are acoustic hanger support distances and acoustic hanger amounts defined?

• The plasterboard total area density is 10 kg/m2 + 15 kg/m2 = 25 kg/m2 (ceiling weight).
• The support distances for the 25 kg/m2 can be checked from the above table: P = 1000 mm and T = 1000 mm. Lower GK 60 mm ceiling profiles are installed using A = max. 400 mm.
• The support distances (1000 mm x 1000 mm) mean that one acoustic hanger is needed for a square meter area.
• The total area of the ceiling is 7 m x 10 m = 70 m2 and the total number of InfiniSpring® Acoustic Hangers is 70 pieces.

After the support distances and acoustic hanger amounts are known suspended ceiling installation steps are as follows:

1. 1. Acoustic hanger ceiling connection parts are installed to the roof using support distances from above.
2. 2. Acoustic hangers are connected to GK 60 mm ceiling profiles.
3. 3. Ceiling connection parts are connected to acoustic hangers.
4. 4. GK-ceiling system is assembled using manufacturer’s instructions.
5. 5. Plasterboards are lifted against the GK-ceiling system and plasterboards are fastened.

With these steps the suspended ceiling can be completed. For the soundproofing it is always important to make the ceiling airtight, but still allow the plasterboard ceiling to move freely on the acoustic hanger springs. Suitable mass or elastic material is required to air tighten the plasterboard ceiling sides and other possible inlets. Also, for example air ducts need to allow the suspended ceiling and acoustic hanger springs to move freely. One option is to use flexible bellows or install ducting flexibly using InfiniSpring®-springs.

Acoustic Products Installation Instructions with pictures can be found from the Product page. If you have any comments or questions, please do not hesitate to contact us.

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