| Brand Name: | Hoan |
| Model Number: | JGX-0240D-4.5A |
| MOQ: | 10 Pieces |
| Payment Terms: | L/C,D/A,D/P,T/T |
When vibration isolation equipment operates in salt-laden atmospheres, standard materials degrade rapidly — compromising both safety and performance. The JGX-0240D-4.5A marine-grade wire rope vibration isolator addresses this challenge head-on with 316L stainless steel wire rope and 304 stainless steel mounting blocks, delivering marine-grade salt spray resistance exceeding 1,000 hours under ASTM B117 neutral salt spray testing. Every surface undergoes passivation and electropolishing, eliminating free iron and creating a chromium-rich oxide layer that self-heals when scratched.
| Test Standard | Condition | Duration | Result |
|---|---|---|---|
| ASTM B117 | 5% NaCl fog, 35°C | 1,000 hours | No red rust, no pitting ≤0.1 mm |
| ISO 9227 (NSS) | Neutral salt spray | 1,000 hours | Pass — Grade 9 or better |
| Cyclic Corrosion | Salt fog + humidity + drying | 30 cycles | No functional degradation |
| Intergranular Corrosion | ASTM A262 Practice E | 24 hours | No sensitization observed |
Full corrosion test reports with photographic documentation are available for qualified inquiries. Third-party laboratory validation can be arranged for project-specific certification requirements.
![]()
Navigation electronics, communication racks, and engine monitoring systems aboard commercial vessels, fishing boats, and passenger ferries face continuous salt spray and humidity exposure. The JGX-0240D-4.5A maintains isolation performance without corrosion-related stiffness drift.
Control cabinets, instrumentation panels, and safety system enclosures on offshore wind turbines, oil and gas platforms, and subsea power distribution units require vibration isolation that survives decades of marine atmosphere exposure without maintenance intervention.
Bridge monitoring systems, lighthouse equipment, port automation controls, and desalination plant instrumentation deployed within 5 km of coastlines are subjected to airborne salt concentrations that accelerate corrosion in standard isolators.
Equipment in washdown environments, CIP (clean-in-place) systems, and facilities using chlorine-based sanitizers benefits from the 316L construction's resistance to chloride-induced stress corrosion cracking.
| Parameter | Specification |
|---|---|
| Model Number | JGX-0240D-4.5A |
| Wire Rope Diameter | 4.5 mm |
| Number of Coils | 8 |
| Wire Rope Material | Stainless Steel 316L |
| Mounting Block Material | Stainless Steel 304 |
| Wire Rope Tensile Strength | ≥1570 MPa |
| Salt Spray Endurance | ≥1000 Hours (ASTM B117) |
| Damping Ratio | ≥15% |
| Natural Frequency Range | 5-15 Hz |
| Isolation Efficiency | ≥85% at Resonance |
| Operating Temperature Range | -70°C to +250°C |
| Mounting Thread | M5 |
| Unit Weight | Approx. 38 g |
| Surface Treatment | Passivated &Electropolished |
| Compliance | CE, ISO 9001:2015 |
316L contains 2-3% molybdenum, which significantly enhances resistance to pitting corrosion caused by chloride ions present in seawater and marine atmospheres. In salt spray testing, 316L components typically outlast 304 equivalents by 3-5x before visible corrosion appears. The "L" designation indicates low carbon content (≤0.03%), which prevents chromium carbide precipitation during welding and maintains corrosion resistance in heat-affected zones.
No. The combination of 316L wire rope, passivation, and electropolishing provides sufficient corrosion protection for most offshore environments without supplemental coatings. Unlike painted or epoxy-coated alternatives, there is no coating to chip, crack, or require reapplication. If your specific environment exceeds standard marine conditions (e.g., submerged service or chemical exposure), please contact our applications engineering team.
Each production lot includes a material certification document (mill test report) traceable to the original steel mill heat number. Portable XRF (X-ray fluorescence) analysis can also non-destructively verify molybdenum content on-site. We encourage customers to perform receiving inspection using either method.
Based on accelerated corrosion testing and field data from installations in Southeast Asian and North Sea marine environments, the JGX-0240D-4.5A is projected to deliver 10+ years of service with routine inspection. Actual service life depends on local salinity levels, temperature cycles, and exposure to airborne contaminants.