Product Overview
VBLS / DBLS Rubber Vibration Isolator Mounts provide superior vibration damping and noise reduction for industrial machinery, HVAC systems, and precision equipment. Engineered with high-performance elastomers, these isolator mounts effectively absorb shock loads, minimize structural vibration transmission, and extend equipment service life.
Available in both single-sided (VBLS) and double-sided (DBLS) configurations, our vibration mounts deliver reliable performance across a wide range of load capacities, frequencies, and environmental conditions. Ideal for compressors, pumps, generators, air handling units, and manufacturing equipment.
Structure & Design
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Precision Engineered ConstructionThe vibration isolator features a metal-rubber bonded construction with precision-molded elastomer elements. The metal inserts are fully bonded to the rubber body through vulcanization, ensuring maximum durability and load transfer efficiency. VBLS (Single-Sided): Features one threaded stud for base mounting, ideal for floor-mounted equipment and machinery requiring vertical vibration isolation. DBLS (Double-Sided): Features threaded studs on both top and bottom, providing superior stability and multi-directional vibration isolation for heavy-duty applications. |
Material Selection
1. Elastomer Material Options
| Material | Key Features | Typical Applications |
|---|---|---|
| Natural Rubber (NR) | Excellent vibration damping, high resilience, good fatigue resistance | General industrial equipment, HVAC, light machinery |
| Neoprene (CR) | Weather resistant, oil resistant, moderate damping, outdoor durability | Outdoor equipment, marine applications, moderate oil exposure |
| Nitrile (NBR) | Excellent oil & fuel resistance, good mechanical properties | Hydraulic systems, oil pumps, automotive, fuel handling equipment |
| EPDM | Superior weather & ozone resistance, high-temperature stability | Outdoor installations, hot water systems, high-temperature environments |
| SBR (Styrene Butadiene) | Cost-effective, good abrasion resistance, general-purpose damping | Standard industrial mounts, cost-sensitive applications |
2. Hardness Options (Shore A)
| Hardness | Characteristics | Best For |
|---|---|---|
| 40-50 Shore A | Soft, high damping efficiency, large deflection | Light loads, high-frequency vibration, sensitive equipment |
| 55-65 Shore A | Medium hardness, balanced damping & load capacity | Standard industrial applications, moderate loads |
| 70-80 Shore A | Firm, high load capacity, low deflection | Heavy machinery, high static loads, structural support |
3. Metal Insert Options
- ˚ ✵ Galvanized steel (standard, corrosion-resistant)
- ˚ ✵ Stainless steel 304/316 (marine, food-grade)
- ˚ ✵ Zinc-plated steel (enhanced corrosion protection)
- ˚ ✵ Custom thread sizes (M6, M8, M10, M12, M16, etc.)
4. Special Features
- ˚ ✵ Fail-safe design (metal-to-metal contact limiter)
- ˚ ✵ Color-coded for easy identification
- ˚ ✵ UV-resistant compounds for outdoor use
- ˚ ✵ Low-temperature formulations (-40°C)
Product Advantages
✶ Core Advantages
- Superior Vibration Isolation – Effectively reduces vibration transmission by up to 95% across critical frequency ranges (5-200 Hz)
- Noise Reduction – Minimizes structure-borne noise, creating quieter operating environments and reducing acoustic pollution
- Extended Equipment Life – Absorbs shock loads and prevents fatigue damage to machinery foundations and components
- Wide Load Range – Available in capacities from 10 kg to 2000 kg per mount to suit various equipment sizes
- Metal-Rubber Bonding – Vulcanized bonding ensures no separation under load, providing long-term reliability
- Easy Installation – Threaded stud design allows quick mounting with standard nuts and washers
- Cost-Effective Solution – Reduces maintenance costs, prevents structural damage, and improves workplace safety
✶ Performance Comparison
| Feature | Our VBLS/DBLS Mounts | Standard Market Products |
|---|---|---|
| Vibration Isolation Efficiency | Up to 95% at resonant frequency | 70-85% typical |
| Metal-Rubber Bond Quality | Full vulcanization, no separation | Adhesive bonding, potential separation |
| Dimensional Tolerance | ±0.5mm on critical dimensions | ±1.5mm or higher variation |
| Load Consistency | ±5% load rating accuracy | ±15-20% variation common |
| Service Life | 10+ years under normal conditions | 5-7 years typical |
| Temperature Range | -40°C to +80°C (standard), custom available | -20°C to +60°C typical |
| Quality Control | 100% dimensional & load testing | Batch sampling only |
✶ Manufacturing Strength & Quality Assurance
- Specialized Production Facility – Dedicated vibration mount production lines with precision molding equipment
- Advanced Vulcanization Process – High-pressure, high-temperature bonding ensures superior metal-rubber adhesion
- In-House Material Compounding – Custom rubber formulations optimized for vibration damping characteristics
- Rigorous Load Testing – Each batch tested for static load, dynamic stiffness, and damping coefficient
- ISO 9001 Certified – Comprehensive quality management system ensuring consistent product quality
- Engineering Support – Application engineering assistance for optimal mount selection and system design
- Custom Solutions – Ability to manufacture custom sizes, load ratings, and configurations per customer specifications
Technical Specifications
Standard Size Range (Examples)
| Model | Height (mm) | Diameter (mm) | Thread Size | Load Capacity (kg) |
|---|---|---|---|---|
| VBLS-2020M6 | 20 | 20 | M6 | 10-30 |
| VBLS-3030M8 | 30 | 30 | M8 | 30-60 |
| VBLS-4040M10 | 40 | 40 | M10 | 60-120 |
| DBLS-5050M12 | 50 | 50 | M12 | 120-250 |
| DBLS-6060M12 | 60 | 60 | M12 | 250-400 |
| DBLS-8080M16 | 80 | 80 | M16 | 400-800 |
| DBLS-100100M20 | 100 | 100 | M20 | 800-2000 |
Note: Custom sizes, load ratings, and thread configurations available upon request. Load capacity varies with rubber hardness selection.
Performance Characteristics
| Parameter | Specification |
|---|---|
| Operating Temperature Range | -40°C to +80°C (standard), -60°C to +100°C (special compounds) |
| Effective Frequency Range | 5-200 Hz |
| Vibration Isolation Efficiency | 85-95% at resonant frequency |
| Maximum Deflection | 10-30% of rubber height (depends on hardness) |
| Static to Dynamic Stiffness Ratio | 1.2-1.8:1 |
| Metal Insert Pull-Out Force | >10 kN (proper vulcanization) |
| Service Life | 10+ years (normal operating conditions) |
Product Applications
Compressors, pumps, generators
Air handlers, chillers, cooling towers
Concrete mixers, power tools
Diesel generators, transformers
Engine mounts, deck equipment
Elevators, escalators, fans
Precision instruments, analyzers
Engine test stands, dynamometers
Installation Guide
🖇₊ ⋆Recommended Installation Steps
Determine total equipment weight and divide by the number of mounting points to calculate load per mount.
Choose VBLS or DBLS mounts with a rated load approximately 20–30% higher than the calculated load.
Ensure foundation and equipment mounting surfaces are flat, clean, and level.
Secure threaded studs with suitable nuts and washers. Adjust to keep equipment level with even load distribution.
Tighten fasteners to recommended torque and verify rubber deflection is within 10–30% of mount height.
🖇₊ ⋆Installation Notes:
- Use at least 3–4 mounts to ensure equipment stability
- Place mounts close to the equipment center of gravity
- Do not exceed rated load or allowable deflection
- Inspect mounts periodically for rubber aging or bond separation
Packaging & Shipping
📦 Packaging Options
We provide protective packaging to prevent damage during transportation and storage.
| Category | Packaging Type |
|---|---|
| Standard Packaging | Individual poly bags with protective caps on threaded studs |
| Carton boxes with foam inserts | |
| Bulk packing in export cartons (for large quantities) | |
| Special Packaging | Wooden crate packaging (for heavy-duty mounts) |
| Palletized packaging with shrink wrap | |
| Custom labeling with part numbers and load ratings |
🚚 Shipping & Logistics
| Item | Details |
|---|---|
| Shipping Methods | Express (DHL / FedEx / UPS), Air Freight, Sea Freight |
| Delivery Time | Express: 3–5 days | Air: 5–7 days | Sea: 25–35 days |
| Lead Time | Stock items: 1–2 weeks | Custom orders: 3–4 weeks |
| Export Packing | Export cartons, palletized, moisture-proof |
| Trade Terms | EXW, FOB, CIF, DDP available |
| Shipping Port | Xiamen, China |
🖇₊ ⋆ Secure Delivery Guarantee:
All vibration mounts are packaged with thread protection and cushioning materials to prevent damage during transit. Metal inserts are inspected for corrosion protection before shipment.
Certificates & Compliance
🏆 Our vibration mounts are officially certified and hold the following certificates: ISO 9001, CE, RoHS, REACH
⚙️ Our products also comply with recognized industry standards: DIN 4018, ISO 2017, BS 4485, ensuring that all mounts meet rigorous performance and quality requirements.
🧪 Performance Testing & Documentation:
- Static load capacity testing per ISO 2017
- Dynamic stiffness and damping coefficient measurement
- Bond strength testing (metal-rubber adhesion)
- Accelerated aging and environmental exposure testing
- Full material data sheets (TDS, SDS, CoA)
- Custom testing reports available upon request
Customer Feedback
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