Industrial dewatering machines achieve solid-liquid separation through high-speed centrifugal rotation. During operation, the motor drives the inner drum to rotate at high speed, generating strong centrifugal force that pushes the moisture in the materials through the perforated drum wall and discharges it, completing the dehydration process.
However, during actual operation, uneven material distribution inside the drum, excessive feeding speed, or overloading may cause severe vibration. When the operating speed approaches or matches the natural frequency of the machine-supporting structure, especially when the building floor lacks sufficient stiffness, resonance may occur. This can significantly amplify the vibration amplitude, resulting in excessive vibration and potential structural safety risks.
Working Condition Analysis
More than 20 industrial dewatering machines were installed on the second floor of a factory building. During operation, the strong centrifugal forces generated by the rotating equipment could transmit significant dynamic loads to the floor structure, creating potential safety concerns.
To reduce vibration transmission and improve operational safety, an effective vibration isolation solution was required.
Equipment parameters:
Vibration Isolation Solution
Based on the operating conditions, Anlijing Vibration Reduction Technology Co., Ltd. recommended the ALJ-45 Shear-Type Rubber Vibration Isolator.
This type of isolator is specifically designed for equipment involving rotational and centrifugal motion, providing excellent vibration attenuation performance and effective control of vibration transmission.
Load Calculation
Considering the dynamic impact generated during high-speed rotation, the design load per mounting point was calculated as:
2,000 kg × 1.5 ÷ 3 = 1,000 kg per isolator
According to the calculated load requirement:
ALJ-45123 can meet the basic vibration isolation requirements.
Considering the quantity of equipment and possible coupled vibration effects between multiple machines, the upgraded model ALJ-45150 was selected to provide higher load capacity and better vibration isolation performance.
Product Advantages
1. High Vertical Load Capacity & Excellent Lateral Stability
The ALJ-45 series isolator adopts high-performance reinforced rubber elements with increased thickness, providing excellent elastic damping characteristics and vibration absorption capability.
The reinforced steel plates ensure high load-bearing capacity and resistance against impact vibration.
Key features:
Natural frequency range: 5–13 Hz
High vertical load capacity
Excellent lateral stiffness for stable operation under dynamic loads
This makes it suitable for rotating equipment with significant centrifugal forces.
2. Compact Structure with High Load Capacity
The isolator is manufactured by vulcanizing one or multiple layers of natural rubber with metal plates into an integrated structure.
Advantages include:
3. Long Service Life & Easy Installation
Through advanced vulcanization technology, the rubber element and metal components are firmly bonded, preventing separation and improving durability during long-term operation.
The isolator features:
Simple installation process
Large mounting surface area
Stackable design for flexible installation
Adaptability to various complex installation conditions
Product Information
ALJ-45150 Shear Rubber Vibration Isolator
Model | Dimensions (mm) | Maximum Vertical Load (kg) | Maximum Shear Force (kg) |
L | L1 | H | t | 4-φd | 60°HA |
ALJ-45150 | 166 | 136 | 63 | 6 | 13.5 | 3750 | 850 |
Vertical Load–Deflection Performance Curve
The vertical load-deflection curve of the ALJ-45150 vibration isolator is shown below.
About Anlijing
For more information, please visit our official websites:
Anlijing Official Website
Anlijing Vibration Reduction Technology Co., Ltd.
Focused on vibration and noise control solutions for mechanical and industrial equipment.
Driven by engineering data and precise selection methods, we provide integrated vibration control services including:
· Vibration measurement
· Vibration isolation design
· Product selection
· Customized vibration reduction solutions
