Compact Design – No Added Ceiling Height

Both hanger types are engineered as extremely simple sheet‑metal components that can be installed directly with wood screws. To support tight construction height requirements, the hangers are optimized so they do not increase the total ceiling height—the ceiling grid can be installed flush with the I‑joist or CLT element.

We currently offer two ceiling grid options:

• GK60 mm
• Wooden bar

AH60W – For GK60 mm Ceiling Profiles (Up to 25 kg Load)

The AH60W acoustic hanger uses a 3 mm InfiniSpring® element and is tailored for the GK60 mm metal ceiling profile.

• Designed for 25 kg maximum load, matching our existing GK60 hangers
• Optimal load range 15–25 kg to meet typical support distance requirements
• Height‑minimized with an upper spacer to prevent spring contact with the I‑joist/CLT
• Installed using standard wood screws

Picture 1: AH60W hanger with GK60 mm ceiling grid

Picture 2: AH60W hanger with GK60 mm ceiling grid

Picture 3: AH60W installation with upper spacer

A sample table of recommended support distances is provided below.

P = Support distance along the I‑joist or CLT element
T = Support distance between adjacent I‑joists or CLT elements

The following performance curve provide the natural frequency of AH60W hanger relative to applied load, supporting accurate acoustic design.

AHWW – For Wooden Bar Ceiling Grids (Up to 45 kg Load)

For wooden grid structures, the AHWW acoustic hanger uses a 4 mm InfiniSpring®-spring, providing increased load capacity and longer support distances.

• Designed for loads up to 45 kg
• Equipped with spacers on both upper and lower connections to ensure the spring does not touch the I‑joist/CLT or wooden bar
• Allows significantly greater support distances compared to thin GK60 steel profiles
• Can reduce the total number of hangers needed for the suspended ceiling

Picture 4: AHWW hanger with wooden grid

Pictures 5: AHWW hanger with wooden grid

Picture 6: AHWW installation with spacers and wood screws

A sample table of recommended support distances is provided below.

Available Now

These new InfiniSpring® acoustic hangers provide a highly efficient, installation‑friendly solution for timber structures using I‑joists or CLT. Both AH60W and AHWW are now available through us.

If you need design support, load calculations, or project‑specific recommendations, our team is happy to assist.

The post New InfiniSpring® Acoustic Hanger Series for I-Joist and CLT Suspended Ceilings appeared first on InfiniSpring.

Customer Feedback

We are pleased to share positive feedback from Jarno Valkama of Rakennustoimisto Pekka Kynnös Oy: “The installation of InfiniSpring acoustic products went smoothly, and we are happy to continue using these products in the future.”

Acoustic Performance Validation

To confirm compliance with the National Building Code of Finland’s noise requirements, comprehensive acoustic measurements were carried out at Pehula. InfiniSpring solutions are designed to minimize both impact noise and airborne noise, creating a better learning and working environment. Special attention was given to sensitive areas such as the music room, where sound isolation is critical to prevent disturbance in adjacent spaces.

The results clearly meet the required standards. Below is a summary of the measurements:

Standardized Sound Level Difference (DnT,w)

Measurements were performed using a loudspeaker connected to a pink noise generator. Sound pressure levels were recorded in both transmitting and receiving rooms, and standardized sound level differences (DnT) were calculated based on reverberation times. Both results horizontal for the wall structure and vertical for the floor exceed the requirements.

Figures 1 and 2 show the structural setups and measurement results.

Figure 1. Standardized sound level No 1 DnT,w 55 dB

Figure 2. Standardized sound level No 2 DnT,w 73 dB

Standardized Impact Sound Level (L’nT,w)

Impact sound measurements were conducted using a standardized impact sound device. Sound pressure levels were measured in the receiving rooms, and L’nT,w values were determined using the reference curve procedure.

Again, both results clearly meet the requirements. Figures 3 and 4 show the detailed measurement data.

Figure 3. Standardized impact sound level No 1 L’nT,w 45 dB

Figure 4. Standardized impact sound level No 2 L’nT,w 27 dB

Conclusion

The Pehula project demonstrates how InfiniSpring acoustic solutions deliver reliable performance, ensuring compliance with strict noise regulations while enhancing comfort in educational environments.

For more details or technical documentation, please contact us.

Link to previous post introducing acoustic products and showing acoustic product installations before gypsum board installations: Pehula Multi-Service Center – Sastamala, Finland

The post Measurement Results and Feedback from Our First School Project appeared first on InfiniSpring.

These unique features make InfiniSpring® a versatile and innovative solution for modern engineering challenges.

Transforming Pipe Support Design for Quieter Spaces

One of the latest innovations using InfiniSpring® technology is the Acoustic Pipe Support, which redefines how pipes are mounted and isolated. Traditional supports, such as those based on SFS 5377, create rigid connections that transmit noise and vibration into surrounding structures.

By replacing the stiff vertical U-profiles (U50) in these supports with InfiniSpring® springs, the system becomes flexible and acoustically optimized—dramatically reducing sound transmission. This makes InfiniSpring® Acoustic Pipe Supports an ideal choice for environments where acoustic performance is critical.

Real-World Application: Hospital Installation

The first InfiniSpring® Acoustic Pipe Supports were installed in a hospital setting for a horizontal DN300 pipe, using two key components:

• InfiniSpring® Acoustic Pipe Slide
• InfiniSpring® Acoustic Anchor Point

These components work together to manage thermal expansion and vibration. The Pipe Slide allows the pipe to move freely within a groove, while the Anchor Point absorbs high longitudinal loads while remaining flexible in other directions. This combination ensures both structural integrity and acoustic isolation.

Custom Solutions for Healthcare and Beyond

InfiniSpring® Pipe Supports are fully customizable for different pipe sizes and applications. Whether you’re designing HVAC systems, medical gas lines, or industrial piping in sensitive environments, we can help create a solution that meets your acoustic and structural needs.

Looking to improve soundproofing in your facility?
Contact us to explore flexible, vibration-isolating pipe support solutions tailored to your project.

Product Cards & Installation Gallery

• InfiniSpring® Acoustic Pipe Slide
• InfiniSpring® Acoustic Anchor Point

📸 Installation images from the first hospital site are available below.

The post InfiniSpring® Acoustic Pipe Supports – Enhancing Hospital Soundproofing appeared first on InfiniSpring.

InfiniSpring® technology was implemented in a CASEMATE Business Finland research project involving an AGCO Power internal combustion engine-generator set, operated by Global Boiler Works Oy (GBW). The project, led by the University of Oulu, formed the basis of a Master’s Thesis by Benjamin Timonen, supervised by Antti Korpela (GBW).

Original Setup and Modification

The engine-generator set was originally rigidly mounted to the floor of a test container. As part of the CASEMATE project, InfiniSpring® springs were dimensioned and installed between the engine-generator set and the container floor to reduce vibration transmission to the surrounding structure.

Notably, the engine-generator set remained unmodified. The InfiniSpring® springs were added externally, making the upgrade both straightforward and non-invasive.

Spring Selection and Load Matching

• Engine-generator set weight: ~1100 kg
• Springs used: 10 × InfiniSpring® 8HS130
• Load capacity per spring: 100–130 kg
• Total supported load range: 1000–1300 kg

This configuration matched the system’s weight perfectly, ensuring optimal isolation performance.

Datasheet with standard spring sizes is available on our webpages: InfiniSpring Datasheet

Design and Simulation

• Design of mounting rails for spring installation
• Development of a simulation model using AVL Excite™
• Vibration measurements and comparison with simulation results

The simulation revealed the following rigid body natural frequencies for the isolated system:

Isolation Performance

The critical isolation frequency is calculated as:

f_c = √2 · f_N

For vertical natural frequency of 7.7 Hz:

f_c = √2 · 7.7 Hz ≈ 10.9 Hz (653 rpm)

This means the spring installation begins isolating vibrations above 653 rpm. Vibration tests were conducted at operational speeds between 1000 rpm (16.7 Hz) and 2000 rpm (33.3 Hz).

Transmissibility and Isolation Efficiency

Transmissibility (T) is calculated using:

T = √(1 + (2ζr)^2) / √((1 – r^2)^2 + (2ζr)^2)

Where:

• r = Ω / f_N
• ζ = 0.01

Example:

At 2000 rpm (33.3 Hz), vertical natural frequency = 7.7 Hz

r = 33.3 / 7.7 ≈ 4.325

T ≈ 0.057

F_T = T · F_0 = 0.057 · 100 N = 5.7 N

Isolation efficiency: (1 – T) · 100 = 94.3%

Excitation Orders and Isolation

At 2000 rpm, the engine generates excitations at half-order intervals. Below is a summary of vertical direction transmissibility and isolation percentages:

Installation Summary

• Spring selection: 10 × InfiniSpring® 8HS130 for 1100 kg
• Installation: Springs placed symmetrically around the center of gravity for balanced load distribution and optimal isolation

Customer Feedback

Marko Jokinen, CEO of GBW, noted a tangible improvement in vibration levels: “I could feel the difference between the original stiff installation and the resilient InfiniSpring® setup from my office next door.”

Future Development

Future improvements may include integrating spring geometries directly into the steel support frame, eliminating the need for separate spring components and simplifying installation.

The full MSc Thesis (in Finnish) is available via the University of Oulu portal:

Polttomoottorigeneraattorin värähtelynvaimennuksen asentaminen ja simulointi

CASEMATE project:

In English

In Finnish

The post Vibration Isolation of Engine-Generator Sets Using InfiniSpring® Technology appeared first on InfiniSpring.

InfiniSpring® has developed a novel prototype of a vibrating conveyor. Students at SeAMK have followed vibrating conveyor development and supported with the manufacturing drawings and assembly of the vibrating conveyor. Vibrating conveyor was first assembled and tested at SeAMK laboratory to validate design simulations. A Finite Element (FE) simulation model of the vibrating conveyor enables in-depth analysis of the converyor’s mechanical and dynamic behavior, allowing students to see simulated data being compared to prototype testing data. In the future SeAMK students can use vibrating conveyor for studying real life dynamic and vibration phenomena. Students can also practice vibration measurements using the vibrating conveyor.

Vibrating conveyor prototype is incorporating InfiniSpring®-springs in a clever and efficient way. The conveyor is constructed entirely from sheet metal steel, manufactured exclusively using laser cutting. It is powered by an eccentric motor with adjustable speed, and the system allows for changes in both motor RPM and spring angle.

This prototype demonstrates impressive functionality:
At 5300 RPM and a 45-degree spring angle, the conveyor operates with smooth, consistent vibratory motion and effectively conveys materials in a continuous flow. The use of InfiniSpring®-springs enables not only vibration but also contributes to the efficient, integrated design of the entire structure.
InfiniSpring Company will productize vibrating conveyor designs. Ultimately, the goal is to design an optimized and simplified version where the InfiniSpring®-springs become an integral part of the conveyor’s structural frame. We look forward to showcasing the final vibrating conveyor designs later once they are complete.

If you’re interested in integrating InfiniSpring®-springs into your vibratory machinery or dynamic systems, don’t hesitate to contact us. We’re always open to new collaborations and applications.

Photos introducing vibratory conveyor prototype:

The post Vibrating Conveyor Prototype Powered by InfiniSpring® appeared first on InfiniSpring.

The project’s general contractor is Rakennustoimisto Pekka Kynnös Oy, a respected construction company, and the construction management consultant is A-Insinöörit, a Finnish consultancy specializing in project development and design services. InfiniSpring® is proud to be part of this meaningful project, working in close cooperation with Virpi Hankaniemi from A-Insinöörit. Among her many contributions, Virpi has ensured that the Pehula Multi-Service Center complies with the National Building Code of Finland’s noise requirements.

Scheduled for completion by the end of 2025, the building is being constructed primarily from mass timber, aligning with sustainable construction practices. The design emphasizes flexibility, enabling multi-functional use of the space while fostering a safe and familiar learning environment for children.

In January 2025, we visited the site with Jarno Valkama from Rakennustoimisto Pekka Kynnös Oy to deliver InfiniSpring Acoustic Products. At that time, the mass timber construction phase had been completed, and interior construction work was actively underway.

InfiniSpring Acoustic Products are playing a key role in achieving excellent soundproofing throughout the building. Our solutions help minimize both impact and airborne noise, enhancing the learning and working environment. In particular, we’ve supported acoustic isolation in sensitive areas like the music room, where sound can easily disturb adjacent spaces if not properly managed. Our products are being installed in walls and ceilings to reduce sound transmission and ensure a calm, focused atmosphere throughout the facility.

To support optimal acoustic isolation at the Pehula Multi-Service Center, the following InfiniSpring Acoustic Products have been implemented:

• InfiniSpring Acoustic Hanger AH60N
📄 Product Card | 🛠️ Installation Instruction

• InfiniSpring Acoustic Wall Tie AWT250NN
📄 Product Card | 🛠️ Installation Instruction

• InfiniSpring Acoustic Wall Tie AWT94NA
📄 Product Card | 🛠️ Installation Instruction

📸 Below are some photos showing the construction status, our acoustic products, and their installation within the school.

The post Pehula Multi-Service Center – Sastamala, Finland appeared first on InfiniSpring.

One of the most common applications for these supports is in diesel generator installations, where exhaust pipes must meet stringent environmental noise regulations. In these situations, the InfiniSpring®-spring provides a simple and effective method for soundproofing.

From Rigid to Resilient – Upgrading Standardized Supports

Traditionally, exhaust pipes are installed using rigid, standardized supports such as the SFS 5377 Pipe Slide. These conventional supports form stiff connections between the pipe and the surrounding structure, transmitting structure-borne noise directly.

Figure 1. SFS 5377 Pipe Slide

The new InfiniSpring® Pipe Slide retains most of the standard SFS 5377 components, with one key improvement: the vertical U-profiles (U50) have been replaced with specially engineered InfiniSpring®-springs. This upgrade allows for a resilient connection that effectively isolates structure-borne noise.

Figure 2. InfiniSpring® Pipe Slide with InfiniSpring®-springs.

Technical Highlights of InfiniSpring® Pipe Slide for DN300 Pipes:

• Spring material: 10 mm S650MC steel

• Fully compatible with SFS 5377 dimensions – can directly replace rigid versions

• Hot dip galvanized for durability up to 580°C

• Spring geometry helps reduce heat transfer from the pipe

• Compatible with conventional pipe insulation

• Vibration isolation starts from 12–20 Hz (frequency depends on static load)

• Nominal vertical load capacity: 400 kg*

• Nominal axial and transversal load capacity: 160 kg*

• Withstands extreme overloads > 50 kN in all directions without failure

• Plastic deformation tolerance over 500 mm before fracture
  *For high-temperature applications, contact us for detailed load specifications.

Sliding vs. Fixed Support – And a New Hybrid Solution

In standard pipe system design, SFS 5377 Pipe Slides can be installed either as fixed or sliding supports. Sliding is typically enabled by mounting the lower L-profiles (L100x50x8) in grooves, allowing movement to accommodate thermal expansion. Fixed supports are achieved by welding the L-profiles in place.

However, InfiniSpring® Pipe Slides are not suitable for fixed support applications, as the spring components are designed for flexibility and cannot bear equivalent longitudinal loads.

To solve this, we have developed a new InfiniSpring® Pipe Support (longitudinally fixed). This design provides a rigid longitudinal connection while maintaining flexibility in all other directions. It enables resilient installation even where a fixed support point is required.

Figure 3. InfiniSpring® Pipe Support (longitudinally fixed) with InfiniSpring®-springs.

A Flexible Future for Pipe System Design

By combining the InfiniSpring® Pipe Slide and the InfiniSpring® Pipe Support (longitudinally fixed), pipe systems can now be installed entirely with resilient supports. These solutions are adaptable to different pipe sizes and custom applications. The improved vibration isolation performance also enables lighter support structures by minimizing dynamic loads—meaning pipe system design can focus on static load requirements alone.

If you’re looking for innovative, efficient, and high-performance pipe or duct support systems, we’re here to help. Contact us today to discuss your needs—we’re happy to provide tailored InfiniSpring® solutions for any project.

The post Introducing InfiniSpring® Acoustic Pipe Supports – A Game-Changer for Noise and Vibration Isolation appeared first on InfiniSpring.

The vibration isolation platform utilizes InfiniSpring steel spring isolators. The steel spring isolators are laser cut sheet metal components. Steel spring design is unique and offers new design possibilities. In the developed vibration isolation platform separate InfiniSpring-springs were used. In this case the dryer was sitting on top of the washing machine and the vibration isolation platform was dimensioned below the units. Washing machine weight was estimated to be around 70 kg, drier weight 52 kg and laundry weight 11 kg. Total weight being 70 + 52 + 11kg = 133 kg. InfiniSpring 4HS35 spring is for a load range of 25-35 kg. Five 4HS35 springs were chosen to be installed below the units and five springs are for a load range of 125 kg -175 kg. Two 60 cm x 60 cm x 2,7 cm plywood boards were connected using the springs to build the vibration isolation platform. Lower plywood was equipped with adjustment feet to align the vibration isolation platform.

In this case the washing machine vibration and noise transmission to the surroundings is greatly reduced with the vibration isolation platform manufactured using the plywood boards. Vibration isolation platform is light weight and allows easy alignment in the bathrooms. There is also no need to align the washing machine as the platform will take care of the alignment. Please see the vibration isolation platform pictures below describing the assembly.

Step 1: Install adjustment feet to lower plywood

Step 2: Align the lower plywood to washing machine location using the adjustment feet, picture below.

Step 3: Adjust offset between the lower and upper plywood by using e.g. laths above the lower plywood, picture below. Please also see the laths in Step 4 between the lower and upper plywood before spring installation.

Step 4: Calculate and mark the spring locations symmetrically around the center of gravity (washing machine depth direction), picture below.

Calculation:

• Plywood depth is 60 cm
• One spring is installed to the front in this case (spring on the right in below picture), spring location is 30 cm from the middle
• Two springs are installed 50 cm from the front, spring locations are 20 cm from the middle
• Remaining two springs can be calculated from the middle: 20 cm + 20 cm = 30 cm + X + X, X = 5 cm and springs are installed 5 cm from the middle

Step 5: Install the springs using recommended Datasheet wood screws and washers, picture below.

Step 6: Install vibration isolation platform below the washing machine, finalized vibration isolation platform shown in picture below.

Step 7: Washing machine is ready for operation, picture below.

The post InfiniSpring® Vibration Isolation Platform for Washing Machines appeared first on InfiniSpring.

The acoustic product tensile tests with very large plastic deformations made us want to increase the loading speed and to see InfiniSpring® shock load performance. InfiniSpring® 3HS20 was chosen for the tests. It is cut out of a 3 mm thick sheet metal plate, weighting only 38 grams. This spring can carry loads up to 20 kg.

In the shock tests a chain is connected to the spring and on the other end of the chain there is a 9 kg mass. InfiniSpring® 3HS20 can carry the 9 kg static mass easily. In the shock test this mass is first lifted higher and then dropped in order to gain an impact force for the spring. Spring deforms due to this impact and reduces the impact force significantly. Tests and test results are shown in the video below:

InfiniSpring® 3HS20 tests and tests results concluded:

Test 1:
• Dropped mass is 9 kg
• Drop height is 1 meter
• The spring length increases 50 mm
• The spring absorbs 90 Joules of energy

Test 2:
• Dropped mass is 9 kg
• Drop height is 2 meters
• The spring length increases 110 mm
• The spring absorbs 170 Joules of energy

InfiniSpring® laser cut sheet metal steel springs are highly effective against shock loads. Shock loads need to be managed, for example in explosions and seismic events.

The post InfiniSpring® Performance Testing – Shock Loads appeared first on InfiniSpring.

We wanted to test InfiniSpring®-springs in overload situations, where load is clearly above the nominal load. We heard from the spring researchers that creep-aging would be fastest during the first three weeks of the testing. After the three week period creep-aging should not be an issue. InfiniSpring® Acoustic Wall Tie 128NN was chosen for the tests. AWT128NN is for nominal loads up to 25 kg.

AWT128NN springs were tested using tensile load. Two springs were overloaded using 30,7 kg and 41,4 kg weights. Initial openings were measured after the loads were applied. For the 30,7 kg weight the initial opening was 7,0 mm and for the 41,4 kg weight 7,9 mm. Initial openings without the loads were 3,9 mm for both springs. Figure 1 shows the spring with tensile overload.

Figure 1. AWT128NN spring overloaded and with a 7,0 mm opening.

Static tensile overload tests started 18.6.2024 and spring openings were measured regularly. Openings remained the same during the tests. After six weeks of testing 1.8.2024 loads were released, and openings were measured to see the plastic deformation magnitude. It can be seen from 1.8.2024 measurement that the initial no load openings have grown slightly from the original: 30,7 kg load from 3,9 mm to 4,2 mm and 41,4 kg load from 3,9 mm to 4,5 mm. This is since the springs are overloaded and yield strength is exceeded in both overload cases. Table 1 below shows all results.

Table 1: Static tensile load test results 18.6.-1.10.2024

Table 1 results show that the openings have remained the same with the overloads. After 1.8.2024 spring 2 was removed and tests were continued for the spring 1 with 30,7 kg load. This test is continued and last check was made 1.10.2024 and spring 1 opening was initial 7,0 mm.

These results indicate that InfiniSpring®-springs can manage static overloads. The spring openings remained the same throughout the testing and no creep-aging was noticed. InfiniSpring®-spring and chosen steel grade seem to perform extremely well even with the static overloads.

The post InfiniSpring® Performance Testing – Static Overload appeared first on InfiniSpring.