Automotive-Grade Engine Mounts: Precision NVH Isolation for Powertrains

GJBUSH: Focused on engine mounts for 28 years, a specialist in hydraulic and rubber technology originating from automotive OEM. We strictly adhere to the IATF 16949 system, successfully applying mature suspension solutions validated in hundreds of millions of vehicles to marine, heavy machinery, and industrial power fields.

GJBUSH: Your Preferred IATF 16949 Certified Powertrain Mount Factory

28 Years of Automotive OEM Experience

Since 1998, we have focused on chassis suspension systems. We have over 20 years of experience in research, development, and manufacturing for major car manufacturers. With a deep understanding of powertrain vibration isolation, we have created a product library of over 10,000 types, including engine mounts and hydraulic bushings. We strictly follow the IATF 16949 standard to ensure we provide accurate and reliable solutions for any vehicle or equipment you have.

Not Just a Support, But a Precision "Vibration Manager"

An engine mount is far more than a simple rubber block. It serves as an intelligent connection hub between the powertrain and the vehicle frame (or hull/equipment base), and must precisely balance three critical functions under demanding conditions:

Solid Load-Bearing: Static Support

It carries the full weight of the engine and transmission, ensuring the absolute positioning and stability of the powertrain within the vehicle or equipment.

Intelligent Filtering: The Art of Dynamic Vibration Isolation

Actively isolate the vibrations and shocks from the engine. The excellent suspension system is like an “intelligent filter”, which can effectively prevent vibrations and noises from entering the cockpit or equipment, and is the key to improving NVH performance.

Safety Guardian: Extreme Displacement Control

During extreme situations like hard acceleration, emergency braking, or road impacts, it effectively limits excessive movement of the powertrain, protecting surrounding hoses, wiring harnesses, and other critical components from collision damage.

The GJBUSH Technical Core: Harmonizing "Comfort" and "Stability"

Common mounts on the market often struggle to balance “suppressing large shakes” and “isolating fine vibrations and noise.” The core technical advantage of GJBUSH lies in achieving the optimal decoupling of stiffness and damping characteristics through advanced hydraulic mount design and precise tuning.

Low Frequency, High Damping: Effectively absorbs significant shaking during engine idling and start-up, eliminating resonance for a stable feel.
High Frequency, Low Dynamic Stiffness: Efficiently filters high-frequency vibrations and noise during high-speed operation, enhancing quietness.

By integrating material science, fluid dynamics, and structural design, we unify these seemingly contradictory requirements into a single component. This delivers a driving and operating experience that is both quiet and solid for you.

One Core Technology, Driving Four Power Sectors: GJBUSH Mount Real-World Applications

We focus on isolation applications for internal combustion engines and high-vibration power sources.

Automotive NVH Solutions

Serving automotive OEMs for 28 years, providing Hydraulic Mounts, Transmission Mounts, and Torque Struts for passenger and commercial vehicles.

Marine & Offshore

Flexible mounts for Marine Diesel Engines, Inboards, and Outboards. Our salt-spray resistant, high-load formulas effectively isolate hull resonance for smoother sailing.

Industrial Power

Engine Isolation Mounts for Mobile Gensets, Air Compressors, and Industrial Pumps. Ensuring stability during long-term field operation and preventing bolt failure.

Agricultural & Construction

Heavy-duty mounts for high-horsepower diesel engines in Tractors, Harvesters, and Excavators. Designed to withstand high torque shock and muddy environments.

True reliability stems from absolute control over the entire process. GJBUSH is not just a manufacturer; we are a vertically integrated system, from virtual simulation to physical encapsulation. Guided by the SGS IATF 16949 international automotive quality standard, we apply OEM-level engineering rigor and ODM-level flexible responsiveness to every step in creating each hydraulic and rubber mount.

Closed-Loop Core Manufacturing Process:

Mastering Every Detail: Integrated Precision Manufacturing Driven by SGS IATF 16949

1. Simulation-Driven Design

We start development with Computer-Aided Engineering (CAE), performing simulation analysis and topology optimization on the internal flow dynamics (inertia channels/decoupling membranes) of hydraulic mounts. We also independently develop and customize our rubber and damping fluid formulations, ensuring product performance is precisely defined from the very beginning of the design phase.

2. Precision Tooling Guarantee

Core metal structural components and molding dies are designed and manufactured in-house. This guarantees that the dimensional accuracy and structural strength of critical parts, such as aluminum alloy brackets, perfectly match the simulation models, eliminating matching deviations at the source.

3. Critical Process Lockdown

At the bonding interface between metal and rubber, we employ automated surface treatment and special adhesive coating processes. This step is the technical foundation for the product's lifelong reliability and guaranteed bond integrity, even in harsh environments involving high temperatures and oil contamination.

Core Performance Infusion

The soul of a hydraulic mount's performance lies in its internal damping fluid. We complete oil filling and sealing in a vacuum environment, thoroughly eliminating air bubble interference. This ensures the stable, consistent performance of our specialty glycol-based damping fluid, achieving the damping characteristics intended by the design.

5. 100% Inspection & Verification

Every single product off the line must pass the final test on our fully automated dynamic/static stiffness test bench. We measure not only the stiffness curve but, more critically, analyze the Loss Angle — a core performance indicator. This ensures every product meets stringent NVH performance requirements, enabling zero-defect delivery.

Professional Product Lines – GJBUSH Powertrain Mounting System Solutions

GJBUSH provides a complete range of powertrain mounting products, strictly compliant with the IATF 16949 standard. We are not only a manufacturer of standard components, but also an ODM partner capable of developing customized solutions based on your specific operating conditions, load requirements, and NVH targets. We support design-to-print production and joint development.

1. Hydraulic Mounts

Core Technology:
Integrates internal fluid chambers and inertia channels/decoupling membranes to achieve frequency-selective damping through fluid resistance.
Core Value:
Delivers exceptional NVH performance by precisely isolating vibration within targeted frequency bands (such as engine idle), achieving the ideal combination of high damping at low frequencies and low stiffness at high frequencies.
Typical Applications:
Primary front/rear mounts in mainstream passenger vehicles and new energy vehicles, premium commercial vehicle cab mounts, and vibration-isolating bases for precision industrial equipment and marine engines.

2.Rubber–Metal Composite Mounts

Core Technology:
Utilizes high-performance rubber formulations and metal frameworks, integrally molded through vulcanization. Vibration isolation and support are provided through elastic deformation of the rubber spring.
Core Value:
Robust structure, excellent durability, and outstanding cost-effectiveness, suitable for high-load and wide-band vibration-isolation requirements.
Typical Applications:
Engine and transmission mounts for commercial vehicles, auxiliary supports for construction machinery, and base vibration-isolation for industrial generator sets and air compressors.

3. Torque Struts

Core Technology:
Based on rubber or hydraulic mount architecture, enhanced with special materials and processes, including marine-grade anti-corrosion treatment, reinforced structural design, and high-fatigue-resistance rubber formulations.
Core Value:
Engineered for extreme environments, offering outstanding resistance to salt-spray corrosion, shock loads, and delivering long-term operational stability.
Typical Applications:
Elastic mounting of main and auxiliary engines on various vessels, port machinery, mining dump trucks, large agricultural machinery, and engine mount systems for special-purpose military vehicles.

4. Marine & Heavy-Duty Mounts

Core Technology:
Based on rubber or hydraulic mount architecture, enhanced with special materials and processes, including marine-grade anti-corrosion treatment, reinforced structural design, and high-fatigue-resistance rubber formulations.
Core Value:
Engineered for extreme environments, offering outstanding resistance to salt-spray corrosion, shock loads, and delivering long-term operational stability.
Typical Applications:
Elastic mounting of main and auxiliary engines on various vessels, port machinery, mining dump trucks, large agricultural machinery, and engine mount systems for special-purpose military vehicles.

Automotive-Grade Reliability, Verified Beyond Automotive Requirements

At GJBUSH, quality is not the result of final inspection — it is a systematic engineering discipline embedded throughout the entire process from design to validation. In adherence to the SGS IATF 16949 automotive quality system, we have built a specialized validation framework that simulates — and even exceeds — real-world extreme conditions. This ensures that every product you receive has already undergone a “laboratory stress rehearsal” for durability and performance.

Why does this matter?

Engine mounts serve as the core vibration manager between the powertrain and the vehicle body, operating in one of the harshest environments in the entire vehicle: continuous exposure to temperatures above 120°C, long-term contact with engine oil, and persistent high-frequency, high-amplitude vibration. Under such conditions, conventional materials and processes degrade rapidly, causing stiffness loss, damping failure, and ultimately noise and vibration issues.

Our validation objective is to ensure that even after the equivalent of 100,000 km or thousands of hours of continuous operation, the mount’s key vibration-isolation properties — stiffness and damping — remain within the strict tolerance band of their original design.

GJBUSH Core Validation Capabilities

Dynamic Mechanical Performance Testing

Test Items:
Static/dynamic stiffness curves, damping coefficients, and loss-factor (Tan Delta).
Engineering Significance:
This is essentially the “performance ECG” of a mount. We precisely measure its mechanical response under simulated rotational speeds (frequencies) and amplitudes, ensuring its dynamic characteristics perfectly match design targets and full-vehicle NVH requirements.

High-Temperature Dynamic Fatigue Durability Testing

Test Items:
Millions of programmed or random vibration load cycles inside an environmental chamber exceeding 120°C.
Engineering Significance:
A direct assessment of product lifetime. This test replicates the combined effects of under-hood high temperatures and long-term vibration, evaluating rubber thermal aging, metal fatigue strength, and long-term sealing performance of hydraulic components — all critical indicators for predicting real-world durability.

Fluid-Resistance & Environmental Aging Tests

Test Items: Immersion in specific engine oils, transmission fluids, coolants, and salt-spray environments to assess volume change, hardness variation, and bonding-strength retention.
Engineering Significance:
Ensures that mount materials maintain performance without degradation, swelling, or cracking when exposed to automotive fluids or marine-salt environments, safeguarding long-term reliability.

Hydraulic Mount Extreme Condition & Sealing Verification

Test Items: Pressure-pulse fatigue testing, burst-pressure testing, and high/low-temperature cyclic sealing tests.
Engineering Significance:
Focused on the critical risk factor of hydraulic mounts — leakage. We verify chamber integrity under extreme pressure fluctuations and temperature cycling, ensuring lifetime sealing of the damping fluid and permanently stable hydraulic performance.

Farewell to Resonance and Wear: How GJBUSH Infuses Marine and Industrial Power Systems with "Stability Genes"

What Challenges Do Our Clients Face?

For marine engine and power generator manufacturers who pursue ultimate reliability, traditional vibration-damping solutions suffer from a fundamental flaw: Under the harsh, continuous stress of high temperatures and heavy loads, standard damping components degrade rapidly. This not only causes a sharp increase in operational noise but, more critically, leads to unstable support and excessive displacement of the powertrain. This poses a severe risk of wear and tear to precision transmission systems, transforming the issue from mere comfort into the greatest threat to long-term equipment reliability.

The GJBUSH Solution:

We provide not just a “stronger rubber pad,” but a systematic vibration management solution migrated from the automotive industry. By applying core hydraulic damping technology and specialized high-temperature-resistant materials, we have redesigned the mechanical properties of our mounts to:

Precisely dissipate the vibrational energy dominant in diesel engine frequencies.
Maintain stable performance under prolonged high-temperature conditions.
Deliver consistent, rigid support to ensure proper powertrain alignment.

The Resulting Value Transformation:

Leap in Reliability: Mount service life is extended to more than double that of previous solutions, significantly lengthening maintenance cycles.
Quiet Operation: Structurally transmitted noise to the foundation is fundamentally suppressed, improving the working environment and helping meet stricter environmental standards.
Ultimate Protection: Eliminates the risk of abnormal wear in transmission systems caused by displacement, safeguarding the core value of the equipment.
Becoming the Benchmark: This solution has become the standard for our clients’ high-end product lines, solidifying their market-leading position.

How We Collaborate with You: A Professional Partner Focused on OEM/ODM

Whether you aim to expand your product range, establish a branded catalog, or launch products swiftly to market, GJBUSH stands as your reliable specialist factory and long-term partner.

1. Co-Development and Engineering Customization (For R&D / Engineering Teams)

Facing challenges like vibration control or structural noise? Our experienced engineering team can provide customized design solutions for damping components such as hydraulic mounts and rubber bushings, based on CAE simulation and structural analysis. By optimizing materials, structures, and damping parameters, we help isolate vibration sources and precisely tune resonance frequencies, improving your system’s NVH performance from the ground up.

2. OEM / ODM Mass Production (For Procurement / Supply Chain Teams)

Looking for a stable, reliable manufacturing partner certified under SGS IATF 16949? We offer end-to-end services—from project initiation, tooling development, to large-scale production—ensuring consistency across every batch through a strict quality system. Leveraging our mature supply chain, we balance high quality, controlled costs, and delivery efficiency for you.

3. White Label / Private Label Collaboration (For Brand Owners / Aftermarket Distributors)

With 28 years of experience in vibration-damping component manufacturing and a comprehensive mold library and development capability, we can quickly build your product portfolio—covering mainstream passenger vehicles and industrial machinery models.

GJBUSH Technical Guidance: How to Select the Right Engine Mount for Your Power System

1. Clarify Vibration Control Needs (Isolation vs. Damping)

First, determine your primary objective:

Isolate high-frequency vibrations (e.g., gasoline engine combustion vibrations) → Choose mounts with low stiffness to enhance vibration isolation efficiency.
Suppress large-amplitude oscillations (e.g., diesel engine idle shaking, start-stop impacts) → Hydraulic mounts are the optimal solution due to their high damping characteristics, effectively controlling low-frequency, large-displacement vibrations.

2. Assess Working Environment and Material Compatibility

Key considerations:

Is the mount located near the exhaust system?
Will it be consistently exposed to oil, diesel, or high-temperature media?

Selecting the appropriate rubber material is critical:

NR (Natural Rubber): Excellent elasticity and vibration isolation, but limited heat resistance.
Heat-Resistant NR / EPDM: Balances elasticity with improved heat resistance, suitable for moderate to high-temperature conditions.
HNBR: Outstanding resistance to oil, high temperatures, and fatigue, ideal for extreme environments (GJBUSH offers multiple proprietary formulations for customization).

3. Calculate Load and Installation Stiffness

Beyond the total weight of the system, also evaluate the overturning moment and reactive forces induced by the engine’s output torque.

GJBUSH’s engineering team can assist by combining real-world measurements with CAE simulation analysis to precisely match the mount’s rated load, dynamic/static stiffness, and directional stiffness distribution, ensuring system stability and durability.

Common Questions About Custom Mounts

How do your [Industrial Engine Mounts] differ from ordinary rubber pads?

Night and day. Ordinary pads are simple rubber blocks. Our mounts are engineered components designed to automotive NVH standards, with precise stiffness curves and limiters. Some models use Hydraulic Technology to actively dissipate energy, protecting your expensive equipment.

How do your [Marine Mounts] prevent salt spray corrosion?

We use automotive chassis-grade anti-corrosion standards. Metal parts undergo phosphating and high-grade e-coating/painting. The rubber uses a salt-spray resistant proprietary formula. We ensure no rust or delamination via 1000+ hour salt spray tests.

What are the lead time and cost for developing a Hydraulic Mount?

Hydraulic mounts are more complex than solid rubber. Leveraging our mature Hydraulic Module Library, we can shorten development to 6-8 weeks (CAE to T0). As a source factory, our development costs are far lower than Western design firms.

Do you have off-the-shelf tooling?

Yes, we have thousands of molds covering mainstream passenger/commercial vehicles and some general industrial engines. Contact us for our catalog; you might find a fit without opening new tooling.

Partner with a 28-Year OEM Supplier Make GJBUSH Your Engine Mount OEM/ODM Manufacturer

Don't let powertrain vibration ruin your product experience. GJBUSH offers SGS IATF 16949 certification, advanced Hydraulic Mount Technology, and cross-industry success. We are the direct technical partner for your complex NVH solutions.