DYNAPAC SHOCK ABSORBER

Product Overview - Part 3128 0458 18

The 3128 0458 18 is a precision-manufactured rubber mount component engineered for use in demanding industrial and transportation applications. Heavy-duty anti-vibration mount for Atlas Copco compressors and generators, isolating dynamic forces across a broad frequency range.

Produced in our ISO 9001:2015 certified facility using advanced vulcanization processes and carefully selected elastomer compounds, part 3128 0458 18 meets the exacting performance standards required by original equipment manufacturers and aftermarket service providers. Each unit undergoes comprehensive quality inspection, including dimensional verification, hardness testing, and visual defect analysis, before release to customers in the United States, Canada, Europe, and Asia-Pacific markets.

This component belongs to our Rubber Mount product line, which has been developed through close collaboration with railway operators, rolling stock builders, and heavy equipment OEMs to address the specific challenges of vibration control and structural protection in modern transport and construction applications.

Technical Specifications

The following table summarizes the key mechanical and physical properties of part 3128 0458 18. These values represent typical production characteristics tested in accordance with internationally recognized standards. Custom specifications may be available upon request for volume orders.

Property	Value	Test Standard
Part Number	3128 0458 18	OEM Specification
Hardness	55 ± 5 Shore A	ISO 48-4 / ASTM D2240
Tensile Strength	≥ 18 MPa	ISO 37 / ASTM D412
Elongation at Break	≥ 370%	ISO 37 / ASTM D412
Compression Set	≤ 22% (22h at 70°C)	ISO 815-1 / ASTM D395
Temperature Range	-35°C to +90°C	Operational limits
Ozone Resistance	No cracking after 168h	ISO 1431-1
Fire Safety	EN 45545-2 HL2/HL3 available	European Railway Standard
Fatigue Life	> 2,000,000 cycles	Dynamic fatigue test

Material Composition

Part 3128 0458 18 is manufactured from a proprietary elastomer compound selected to optimize the balance between static load capacity, dynamic stiffness, and long-term environmental resistance. The compound system incorporates:

• Base Polymer: Natural Rubber (NR) or NR/SBR blend, chosen for its outstanding resilience and low heat buildup under cyclic loading
• Reinforcing Fillers: High-structure carbon black grades providing wear resistance and controlled stiffness
• Protective Additives: Antiozonant wax systems and chemical antioxidants extending service life in outdoor environments
• Fire Retardant Package: Halogen-free flame retardants meeting EN 45545-2 smoke toxicity and heat release requirements (railway-grade formulation)
• Bonding System: Chemically bonded rubber-to-metal interface where applicable, achieving bond strength exceeding the bulk rubber tear strength

Applications

Primary Applications

Atlas Copco portable compressor mounting, power pack isolation, and genset anti-vibration systems. This component has been validated through field trials and laboratory simulation testing to confirm reliable performance under the specific load spectra and environmental conditions encountered in these applications.

Secondary Applications

HVAC equipment mounts, industrial blower isolators, and CNC machine tool mounting pads. Our engineering team can advise on suitability for applications not listed here - contact us with your specific requirements for a technical assessment.

Installation Guidelines

Correct installation of part 3128 0458 18 is essential to achieve the intended performance and service life. Follow these guidelines developed from decades of field experience:

1. Incoming Inspection: Verify the part number marking matches 3128 0458 18. Check for shipping damage, surface cracks, or deformation. Reject any component that shows visible defects.
2. Surface Preparation: Clean all mating surfaces thoroughly, removing rust, old rubber residue, grease, and paint. Ensure mounting surfaces are flat to within 0.5 mm tolerance.
3. Alignment: Position the component according to the assembly drawing orientation markings. Incorrect orientation may result in reduced lateral stability or premature failure.
4. Fastener Torque: Tighten mounting bolts to the torque values specified in the equipment maintenance manual. Use a calibrated torque wrench and apply torque in a cross-pattern sequence.
5. Post-Installation Check: After installation, perform a visual inspection to confirm correct seating and uniform compression. Run the equipment at low speed to verify absence of abnormal vibration or noise.

Quality Assurance

Every batch of part 3128 0458 18 is manufactured under our ISO 9001:2015 quality management system. Our quality assurance program includes incoming raw material testing, in-process monitoring of vulcanization temperature and time, 100% hardness spot-checking, and statistical process control charting. Certificates of conformance and full material test reports are available upon request.

For railway applications, we maintain EN 45545-2 fire test reports from accredited third-party laboratories, documenting compliance with the required hazard levels. Our facility is regularly audited by major rolling stock manufacturers and railway operators.

Ordering Information

Part 3128 0458 18 is available for immediate inquiry. Contact our sales team via phone at 444 4 970 or WhatsApp for pricing, lead times, and minimum order quantities. We support both small maintenance quantities and large production volumes with flexible delivery schedules.