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

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.