How GINOTEK Develops the Rubber Sandwich Mounts for Customers

Ginotek provides customers with a one-stop, complete development service, mainly divided into four key stages:

1. Requirement Analysis & Solution Design
Based on the customer’s working conditions, load requirements, installation space, and operating environment, we provide optimized solutions for the structure, number of layers, and material combinations.

2. Formulation & Process Customization
We customize the rubber hardness, bonding system, and interlayer materials to ensure excellent bonding strength and long-term durability.

3. Mold Development & Sample Production
Rapid mold development and prototyping are carried out to provide test samples for customer validation.

4. Testing Verification & Mass Production
Comprehensive testing—including strength, durability, and environmental simulation—is completed before moving to stable mass production and delivery.

Contact us for Vibration Control Solutions

What are Rubber Sandwich Mounts

Rubber Sandwich Mounts are a type of vibration isolation mount. They are composite vibration-damping and load-bearing components made by alternately stacking layers of rubber with metal plates or fiber-reinforced materials, and then vulcanizing them into an integrated structure under high temperature and high pressure.

These mounts utilize the elasticity of rubber to provide vibration reduction, cushioning, and noise control, while the interlayer materials supply structural strength and stability. As a result, they are widely used in applications requiring vibration isolation, such as elevators, automotive systems, industrial machinery, and rail transportation equipment.

Advantages of Rubber Sandwich and Laminated Mounts

Excellent vibration and noise reduction, effectively absorbing vibration and impact.
High load-bearing capacity, resistant to deformation and tearing.
Stable structure, with minimal creep during long-term use and good dimensional stability.
Resistant to high and low temperatures, aging, and corrosion, providing a longer service life.
Multi-functional performance, capable of achieving vibration isolation, sealing, and load-bearing in a single component.
Multi-layer structures further enhance strength, stability, and durability.

Rubber Sandwich Mounts: Ginotek Structural Design & Manufacturing Advantages for Industrial Vibration Control

1. Structural Concept of Sandwich Mount Design

Rubber sandwich mounts consist of a rubber layer bonded between two metal plates or studs. This structure allows controlled compression and shear deformation while providing secure mounting on both sides.

The sandwich configuration ensures even load distribution and stable alignment. By adjusting rubber thickness and metal geometry, engineers can precisely control stiffness and damping characteristics for specific applications.

2. Load and Deformation Engineering

Accurate load analysis is essential for effective vibration isolation. Rubber sandwich mounts are designed based on static loads, dynamic vibration intensity, and directional forces.

Compression-dominant designs are ideal for vertical loads, while combined compression and shear structures handle multi-directional movement. Proper deformation control prevents overloading and improves fatigue resistance under continuous operation.

3. Rubber Material Selection for Performance Stability

Material selection plays a decisive role in determining the performance and service life of rubber products.

Natural rubber, known for its excellent elasticity and high energy absorption capability, is an ideal choice for general vibration isolation and shock-absorbing applications. In contrast, synthetic rubbers such as EPDM (ethylene propylene diene monomer) and NBR (nitrile butadiene rubber) offer superior resistance to heat, oils, and environmental aging, making them well-suited for demanding and specialized operating conditions.

By precisely controlling key formulation parameters—including hardness levels, filler ratios, and the type and dosage of curing agents—engineered rubber compounds can be developed to deliver long-term performance stability. These optimized rubber formulations maintain consistent elasticity, excellent damping characteristics, and strong aging resistance even under fluctuating loads, temperature variations, and continuous vibration. As a result, they provide reliable and durable performance protection, ensuring stable operation and extended service life of industrial equipment.

4. Precision Mold Design and Tooling Accuracy

High-quality molds are critical to achieving consistent geometry and repeatable performance in rubber components. Mold design carefully accounts for rubber flow, venting efficiency, and shrinkage behavior during the sulfurization process to minimize defects and ensure dimensional accuracy.

Precision tooling further guarantees uniform rubber thickness, proper alignment between rubber and metal components, balanced stress distribution, and optimal surface finish. Together, these measures reduce internal stress concentration, enhance fatigue resistance, improve long-term durability, and ensure reliable vibration isolation performance in demanding industrial environments.

5. Rubber-to-Metal Bonding Technology

Reliable bonding between rubber and metal plates is essential for sandwich mount performance. Surface preparation, primer application, and adhesive selection are tightly controlled to ensure strong chemical adhesion.

Proper rubber-to-metal bonding prevents separation under repeated compression and shear forces, ensuring safe and long-lasting vibration isolation.

6. Controlled Vulcanization Process

Vulcanization defines the final mechanical properties of rubber. Temperature, pressure, and curing time are precisely managed to achieve the target elasticity, tensile strength, and damping performance.

A stable curing process ensures predictable vibration isolation behavior and minimizes performance variation between production batches.

7. Quality Inspection and Performance Validation

Quality control is integrated throughout production. Dimensional inspection, hardness testing, and bonding strength evaluation ensure compliance with technical specifications.

For critical applications, dynamic load and fatigue testing validate real-world performance. This ensures rubber sandwich mounts meet international quality and safety standards for industrial use.

Why Rubber Sandwich Mounts Are Widely Used

Compared to single-sided mounts, rubber sandwich mounts provide greater stability and load capacity while maintaining effective vibration isolation. Their compact design and secure mounting make them ideal for industrial machinery, compressors, generators, HVAC systems, pumps, and motor assemblies.

Engineered sandwich mounts reduce noise transmission, protect equipment, and improve overall system reliability.

Conclusion

Effective vibration isolation requires precision engineering and disciplined manufacturing. Through optimized sandwich structure design, advanced rubber formulation, and controlled production processes, rubber sandwich mounts deliver dependable performance in demanding industrial environments. Partnering with an experienced rubber manufacturer ensures each mount is engineered for durability, consistency, and long-term value.