Thread Rolling Machine Vibration Isolation Project
Project Overview
A manufacturing facility installed more than 40 thread rolling machines on a floor slab. Each machine weighs approximately 2–3 tons, resulting in significant dynamic loads on the building structure.
Due to the high-density installation of heavy equipment, vibration transmission and structure-borne noise became a major concern, affecting both
production operations and nearby office areas.
Engineering Challenges
Low-Frequency Impact Vibration
Thread rolling machines generate periodic impact forces during operation. The primary excitation frequency ranges from 10–30 Hz, which can easily excite structural resonance in the floor system.
Structure-Borne Noise Transmission
Rigid connections between machines and the building structure transmit vibration directly to the floor slab, producing low-frequency humming noise that spreads to upper and lower floors.
High-Density Equipment Layout
More than 40 heavy machines installed in close proximity require the vibration isolation system to maintain both static load balance and dynamic stability.
Customized Solution
Isolation System Design
Anlijing engineers performed equipment load analysis and vibration calculation, developing a customized vibration isolation system using air spring vibration isolators.
Equipment Classification Strategy
Light-Duty Machines (≈2 Ton)
Recommended isolator: ALJ-52007 Air Spring Isolator
Soft stiffness design
Excellent low-frequency isolation
Stable load support
Heavy-Duty Machines (≈3 Ton)
Recommended isolator: ALJ-5007 Air Spring Isolator
Reinforced air spring structure
Integrated viscous damping oil system
Designed for high-impact machinery
Isolation Technology
Air Spring Isolation Technology
Air springs use compressed air as the elastic medium, achieving a natural frequency of 3–5 Hz.
This allows over 90% vibration isolation efficiency for low-frequency vibration generated by heavy industrial machinery.
Viscous Damping System
The built-in high-viscosity damping oil reduces vibration decay time and stabilizes equipment quickly after impact.
Durable Structural Design
The isolator uses integrally vulcanized natural rubber and metal components, providing excellent airtightness, durability, and long service life.
Product Specifications
Length（L） | Height（H） | Top Mounting Hole（M） | Natural Frequency |
290mm | 112mm | 16mm | 3–5 Hz |
Project Results
After installation of the Anlijing vibration isolation system:
Structural vibration transmission was significantly reduced
Low-frequency noise in surrounding areas was greatly minimized
Equipment operation became more stable and reliable
The production environment improved without structural modification
About Anlijing
Anlijing Vibration Reduction Technology Co., Ltd.
Anlijing specializes in vibration and noise control solutions for electromechanical equipment. With extensive engineering experience and data-driven product selection, we provide complete services including vibration testing, engineering design, product selection, and customized manufacturing.
Our vibration isolation products are widely used in:
Industrial machinery
HVAC equipment
Precision instruments
Building mechanical systems
Transportation equipment
Helping customers achieve safer, quieter, and more stable equipment operation.
