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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Our solution for high end ceiling soundproofing are InfiniSpring® acoustic hangers. InfiniSpring® Acoustic Hangers cut off noise from around 14 Hz upwards. We hear sounds from about 20 Hz to 20 kHz. This range is also a commonly referenced audio frequency range. InfiniSpring®-springs function as low pass filters in the audio frequency range.

InfiniSpring® Acoustic Hangers consist of only three components: spring plate, rivet and upper connection. All  InfiniSpring® Acoustic Hangers utilize a standardized laser cut spring plate, which can be equipped with different types of upper connections based on the needs.

Below are shown different InfiniSpring® Acoustic Hanger types. All acoustic hangers are using same spring plate, but the upper connection varies. All acoustic hangers fit into the 60 mm GK steel profile, which is widely used steel profile in suspended ceilings. All presented acoustic hangers are for loads up to 25 kg and follow EN 13964 standard requirements. Declaration of Performance and CE-marking have been completed for the acoustic hangers.

First acoustic hanger option is equipped with a Nonius connection and it is named as Acoustic Hanger 60N. This is our standard product and Product Datasheet can be found from the Product-page.

Figure 1. InfiniSpring® Acoustic Hanger 60N

Acoustic Hanger 60N connection can be made using Nonius parts. Nonius parts (upper ceiling parts) exists for lengths from 100 mm up to 5000 mm.

Figure 2. InfiniSpring® Acoustic Hanger 60N Installation

Second acoustic hanger option is equipped with a spring clip and it is named as Acoustic Hanger 60S.

Figure 3. InfiniSpring® Acoustic Hanger 60S

Acoustic Hanger 60S connection can be made using 4 mm suspension wire. Suspension wires exists for lengths from 150 mm up to 2500 mm.

Figure 4. InfiniSpring® Acoustic Hanger 60S Installation

Third acoustic hanger option is equipped with a M6 connection and it is named as Acoustic Hanger 60M6.

Figure 5. InfiniSpring® Acoustic Hanger 60M6

Acoustic Hanger 60M6 connection can be made using M6 threaded rod. Threaded rods exists for different lengths.

Figure 6. InfiniSpring® Acoustic Hanger 60M6 Installation

Fourth acoustic hanger option is equipped with a M8 connection and it is named as Acoustic Hanger 60M8.

Figure 7. InfiniSpring® Acoustic Hanger 60M8

Acoustic Hanger 60M8 connection can be made using M8 threaded rod. Threaded rods exists for different lengths.

Figure 8. InfiniSpring® Acoustic Hanger 60M8 Installation

You can find more information from the Product Page, where AH60N Acoustic Hanger Product Card with Nonius upper connection is available together with Installation Instruction. In case of any questions or interest for the acoustic products please do not hesitate to contact us.

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Acoustic hangers with low stiffness are used in the suspended ceilings to achieve the best possible impact and airborne noise soundproofing. With low stiffness and high elasticity suspended ceilings equipped with acoustic hangers provide noise isolation from very low frequencies upwards. Existing high performance acoustic hangers are typically manufactured using elastomer, rubber, or coil spring. The acoustic hangers are then hung using a support frame to achieve compressive loads. InfiniSpring® functions perfectly also in tension and this offered a new approach for designing simple high performance acoustic hanger design.

As we discussed with A-Insinöörit we got to know the main practical design requirements for the acoustic hangers. The nominal load carrying capacity needed to be up to 25 kg, extreme overload capacity up to 100 kg and suspended ceiling installation natural frequency of around 15 Hz. To achieve this 3 mm plate thickness InfiniSpring® was chosen for the design. The 3 mm plate thickness InfiniSpring® can take loads up to 25 kg easily and suspended ceiling natural frequencies are clearly below 15 Hz on wide load range.

In Finland Inlook Oy is a wholesale building materials company providing the products for the construction industry. Through Inlook Oy we familiarized us with the existing ceiling systems and ensured the ease of acoustic hanger installation through the co-operation. Figure 1 below shows developed InfiniSpring® acoustic hanger design.

Figure 1. InfiniSpring® – Acoustic Hanger.

InfiniSpring® acoustic hanger consists of only three parts: InfiniSpring®-spring plate, rivet, and upper connection. The upper connection can be equipped with any type of typical connection based on the needs: clip pin or hanger rod or threaded rod. In Figure 1 the upper connection is equipped with a Nonius clip pin connection. On the lower side InfiniSpring® acoustic hanger has a fit for 60 mm GK-steel profile, which is widely used steel profile in suspended ceilings.

Designed InfiniSpring®-spring hanger is for nominal loads up to 25 kg. For the overloads the spring plate is equipped with integrated movement limiter. As the load increases above 30 kg the movement limiter grounds. Overload protection is an important safety feature and with the movement limiter the maximum extreme load is clearly above 100 kg for a single spring hanger.

We have just recently finalized the Declaration of Performance and CE-marking for the acoustic spring hanger. We also have other acoustic products available, and these will be introduced later this year together with the Product Cards.

In case you have any questions or want to know more about InfiniSpring® or acoustic products please do not hesitate to contact us.

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