Why Are Cylindrical Rubber Vibration Mounts Ideal for Fan Coil Units?
Fan coil units often generate unwanted vibration and noise, disturbing indoor comfort. Cylindrical rubber mounts solve this by absorbing vibration and stabilizing the unit.
Cylindrical rubber vibration mounts are ideal for fan coil units because they reduce vibration transmission, minimize noise, protect components, and stabilize operation. Their compression-shear structure isolates vibration effectively, making them suitable for HVAC systems that require quiet and reliable performance.
The following sections explain their advantages and answer key engineering questions.
How Do Cylindrical Rubber Mounts Reduce Fan Coil Unit Noise?
Fan coil units frequently produce noise due to fan rotation, motor imbalance, and casing resonance. These vibrations travel through mounting points and amplify when connected to lightweight ceilings or metal framing.
Cylindrical rubber mounts absorb vibration through both compression and shear forces, reducing resonance between the fan, motor, and housing. This directly lowers airborne and structure-borne noise.
By placing the rubber mount between the fan coil casing and the supporting frame, the operating frequency is shifted away from the building’s resonance frequency. Rubber hardness and load capacity allow the mount to deform properly, creating a damping effect that minimizes noise. Correct installation ensures stable performance even during fan speed changes.
Can Cylindrical Rubber Mounts Reduce Vibration Transmitted to Ceilings and Walls?
Lightweight ceilings, gypsum boards, and thin metal frames are extremely sensitive to vibration. Even minor vibration from fan coil units can cause humming or rattling noises.
Rubber mounts block vibration transmission to surrounding structures, preventing ceiling resonance and wall vibration. This helps maintain quiet indoor environments.
When installed under suspended fan coil units, the mounts absorb vibration before it reaches the ceiling hangers. This reduces disturbance in hotel rooms, apartments, offices, and hospital wards. Especially for rooms requiring low background noise, rubber mounts significantly improve acoustic comfort.
How Should Hardness and Load Be Selected for Fan Coil Unit Rubber Mounts?
The effectiveness of cylindrical rubber mounts depends heavily on choosing the proper load capacity and rubber hardness. Incorrect selection can worsen vibration.
Fan coil weight, operating frequency, and mounting points determine the required hardness, usually 45–60 Shore A. Proper compression ensures effective vibration isolation.
A typical fan coil weighs between 15 to 60 kg, divided among 4 mounting points. Selecting mounts with 20–30% static compression provides optimal isolation. Too soft increases tilt; too hard reduces damping. Following manufacturer load tables ensures correct selection.
Can Cylindrical Rubber Mounts Replace Spring Isolators?
Many HVAC engineers wonder if rubber mounts can replace spring isolators, especially for small indoor units.
For lightweight units such as fan coils, cylindrical rubber mounts are often sufficient. Springs are typically needed only for large, low-frequency equipment.
Rubber mounts perform well for frequencies above 10–15 Hz, which aligns with typical fan coil operating speeds. Large AHUs or chillers with lower frequencies require spring isolators. In most residential and commercial fan coil applications, rubber mounts provide the best balance of cost, stability, and performance.
Do Mounting Requirements Differ for Suspended vs. Floor-Mounted Fan Coils?
Fan coil mounting orientation affects vibration direction and the choice of isolator.
Suspended units rely more on shear damping, while floor units primarily need compression damping. Cylindrical mounts handle both effectively when selected correctly.
For suspended units, softer mounts help reduce vibration through hangers. For floor-mounted units, higher-strength mounts control vertical load. Engineers should confirm mounting direction, load distribution, and rubber stiffness before installation.
How Do Cylindrical Rubber Mounts Extend Fan Coil Service Life?
Continuous vibration accelerates wear in fan bearings, motor screws, refrigerant tubing, and condensation piping.
By stabilizing the unit and reducing vibration, rubber mounts lower mechanical stress and maintenance frequency.
When vibration is absorbed, fans run smoothly with less shaft misalignment. Copper pipe joints experience fewer micro-fractures, reducing refrigerant leakage risks. This lowers repair costs and prolongs equipment life over long-term operation.
What Advantages Do Cylindrical Rubber Mounts Offer Over Other HVAC Isolation Methods?
HVAC systems use several isolation methods, including neoprene pads, springs, and composite dampers.
Cylindrical rubber mounts combine low cost, easy installation, compact size, and strong durability, making them a practical HVAC solution.
Unlike flat neoprene pads, cylindrical mounts provide both vertical and horizontal damping. Compared with springs, they avoid sway and do not require adjustment. Their compact size fits tight ceilings and small fan coil spaces, offering reliable, long-lasting isolation.
Do Cylindrical Rubber Mounts Affect the Leveling of Fan Coil Units?
Fan coil leveling is critical for proper condensate drainage. Many installers worry that rubber mounts may cause tilting.
Correctly sized mounts maintain stable support and do not compromise unit levelness.
When all mounts are selected with identical load ratings, compression remains uniform. Installers can fine-tune leveling by adjusting mount height or adding shims. Proper leveling prevents condensate overflow and maintains efficient system operation.
How to Determine Whether a Fan Coil Project Requires Rubber Vibration Mounts?
Not all projects specify vibration mounts, but certain conditions strongly require installation.
Use rubber mounts when ceilings are lightweight, noise complaints are frequent, vibration is transmitted to adjacent rooms, or units are installed above bedrooms or offices.
Hotels, hospitals, apartments, and high-end offices benefit significantly from vibration isolation. If the fan coil is installed near sensitive rooms or on thin structures, rubber vibration mounts are essential to prevent noise and complaints.
Which International Brands Can Cylindrical Rubber Mounts Replace?
Many global HVAC brands supply vibration isolation mounts with similar structure and function.
Cylindrical rubber mounts from Songjiangflex can replace models from Mason, Kinetics, Vibro, AMC, and similar vibration-control brands.
These international brands are widely used in Europe and the Middle East. Songjiangflex provides equivalent hardness, load capacity, and durability, making replacement seamless for engineering installers and distributors.
Why Do More Projects Choose Songjiangflex Cylindrical Rubber Mounts?
Global buyers increasingly look for reliable, cost-effective vibration isolators with stable quality and fast delivery.
Songjiangflex offers precise molding, stable rubber quality, fast production, international-brand replacement compatibility, and strong factory capacity.
Supported by automated production lines, CNC machining, strict rubber formulation control, and full testing facilities, Songjiangflex ensures consistent quality for HVAC projects. The factory provides custom hardness, OEM/ODM support, and timely delivery—critical for Middle Eastern and European customers who face urgent project schedules.
Summary (≤30 words)
Cylindrical rubber mounts provide effective vibration isolation, noise reduction, long equipment life, and reliable performance, making them an ideal choice for fan coil unit installations.
