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LORD PS Series: Highly Damped Elastomeric Isolators for Critical Aerospace & Defense Applications

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    Key Points

    • PS Series mounts provide reliable shock and vibration protection for sensitive electronic equipment in demanding aerospace and defense environments
    • With load ratings from 8-60 lbs and natural frequencies around 25 Hz, these mounts deliver effective isolation above 40 Hz
    • The low-profile design requires minimal headroom while providing fail-safe mechanical interlocking
    • LORD's BTR elastomer enables consistent performance from -65°F to +300°F with high damping capabilities

     

    In aerospace and defense applications, protecting sensitive electronic equipment from damaging shock and vibration is critical to mission success. The LORD PS Series mounts represent a proven solution, combining advanced elastomeric technology with practical design features that make them ideal for aircraft, missile, spacecraft, and related ground support equipment.

    Design Features & Benefits

    When selecting vibration isolation for critical aerospace systems, engineers need solutions that deliver reliable performance while meeting strict space and environmental requirements. The PS Series addresses these needs through several key design elements.

    The LORD PS Series offers:

    • Fully bonded construction that ensures precise, predictable, and reliable performance
    • Compact low-profile geometry that minimizes required installation space
    • All-attitude mounting capability with similar axial and radial performance
    • Mechanical interlock design that maintains equipment position even if elastomer fails
    • High damping properties that control resonant amplification
    • Wide operating temperature range from -65°F to +300°F

     

    Related: Read our Guide to Parker LORD Vibration Isolation Mounts.

    LORD PS Series Product Line

    The PS Series offers five distinct models to accommodate a wide range of load requirements while maintaining consistent isolation performance. Each model is engineered to provide reliable shock and vibration protection while delivering the same core benefits of the PS Series design.

    All models in the PS Series share several important characteristics:

    • Natural frequency of 25 Hz for consistent isolation performance
    • BTR elastomer composition for temperature stability
    • Similar axial and radial performance
    • Fail-safe mechanical design
    • Simple installation requirements

     

    The primary differentiator between models is their load capacity and corresponding spring rates, allowing engineers to select the optimal mount based on their specific equipment weight and isolation requirements.

    PS Series Model

    Load Range (lbs)

    Load Range (kg)

    Natural Frequency (Hz)

    Dynamic Axial Spring Rate (lb/in)

    Dynamic Axial Spring Rate (N/mm)

    PS1010

    8-12

    3.6-5.4

    25

    638

    112

    PS1015

    13-19

    5.9-8.6

    25

    957

    167

    PS1025

    20-28

    9.1-13

    25

    1595

    279

    PS1035

    29-41

    13-19

    25

    2233

    391

    PS1050

    42-50

    19-27

    25

    3190

    558

    Note: All models feature BTR elastomer with operating temperature range of -65°F to +300°F (-54°C to +149°C)

    By offering multiple load ranges within a single product series, engineers can standardize on the PS Series design while accommodating different equipment weights across their applications. This approach simplifies inventory management and maintenance procedures while ensuring consistent isolation performance.

    Performance Specifications

    Understanding the performance envelope helps engineers properly specify these mounts for their applications. The LORD PS Series delivers consistent isolation across a broad range of conditions.

    Key specifications include:

    • Load ratings from 8 to 60 lbs (3.6 to 27 kg)
    • Natural frequency of approximately 25 Hz
    • Maximum amplification at resonance between 2.5 and 4
    • Ability to handle inputs up to 0.06 inch double amplitude
    • Sustained 15g shock capability with no performance degradation
    • Ultimate shock capability of 30g without failure

    Application Guidelines

    Proper application of LORD PS Series mounts requires careful consideration of several factors to achieve optimal isolation performance. The selection process should account for both the equipment being isolated and the expected operating environment.

    Critical factors include:

    • Total equipment weight and center of gravity location: The combined mass and CG position of the mounted equipment must be accurately known to properly size and position the mounts for optimal load distribution.
    • Available mounting space and interface requirements: The physical envelope and mounting surface configuration must accommodate the mount's dimensions and attachment method while providing adequate clearance for expected motion.
    • Expected shock and vibration input levels: Understanding the amplitude, frequency content, and duration of expected dynamic inputs ensures the mounts can handle the loads without exceeding their design limits.
    • Temperature range during operation: The full range of temperatures the mount will experience during operation must fall within the BTR elastomer's specified range of -65°F to +300°F to maintain consistent performance.
    • Required natural frequency and isolation performance: The desired system natural frequency and isolation requirements at specific frequencies help determine if the PS Series' 25 Hz nominal natural frequency will meet application needs.
    • Fail-safe requirements: The criticality of the application and consequences of mount failure must be evaluated to confirm the PS Series' mechanical interlock design provides adequate fail-safe protection.

    Materials & Construction

    The PS Series leverages high-quality materials selected specifically for aerospace and defense applications. This focus on material selection helps ensure long-term reliability.

    Key components include:

    • Aluminum alloy metal components for low weight
    • Chromate treatment per MIL-DTL-5541 for corrosion protection
    • LORD's proprietary BTR elastomer for temperature stability
    • Mechanical interlock design for fail-safe operation

    Installation Considerations

    Proper installation is critical for achieving optimal isolation performance. The PS Series was designed with practical installation requirements in mind.

    Important installation factors:

    • Simple mounting interface requiring no special tools or modifications
    • Multiple mounting configurations available
    • Clear load rating identification on each mount
    • Ability to be installed in any orientation
    • Compact envelope minimizing space requirements

    Why Choose the PS Series?

    For aerospace and defense applications requiring reliable vibration and shock isolation in a compact package, the PS Series offers a proven solution backed by LORD Corporation's extensive experience.

    Benefits include:

    • Protection of sensitive electronics from damaging vibration
    • Consistent performance across extreme temperatures
    • Simple installation and maintenance
    • Proven reliability in critical applications
    • Full technical support from LORD engineering team

    Final Thoughts

    The LORD PS Series mounts provide aerospace and defense engineers with a reliable, well-engineered solution for protecting sensitive equipment from shock and vibration. Their combination of high performance, practical design features, and proven reliability make them an excellent choice for demanding applications where failure is not an option.

    Comprehensive Engineering Excellence in Aerospace & Defense Manufacturing

    Meeting the exacting requirements of aerospace and defense applications demands more than just manufacturing capability—it requires deep technical expertise and a systematic approach to quality. Here's how Modus Advanced delivers on these critical needs.

    Technical Expertise That Drives Innovation

    Our engineering team forms the foundation of our approach to aerospace and defense projects. With engineers making up over 10% of our staff, we bring specialized knowledge in materials science, manufacturing processes, and systems optimization to every project.

    This expertise enables us to engage from initial concept through final production, providing crucial insights that optimize designs for both performance and manufacturability. By identifying potential challenges early, we help prevent costly redesigns and accelerate development timelines.

    Integrated Manufacturing Excellence

    Traditional manufacturing often fragments production across multiple vendors, creating unnecessary complexity and risk. Our vertically integrated approach brings critical processes together under one roof:

    • Metal housing fabrication 
    • EMI shielding integration 
    • Environmental sealing through FIP gasket dispensing 
    • Thermal management implementation 
    • Quality validation across all processes

     

    This consolidation eliminates shipping delays between vendors while maintaining strict quality control throughout the manufacturing process.

    Commitment to Defense-Grade Standards

    For aerospace and defense applications, compliance isn't optional—it's imperative. Our quality system maintains:

    • AS9100 certification for aerospace manufacturing 
    • ITAR registration for defense projects 
    • ISO 9001 certification for quality management 
    • Active progress toward CMMC Level 2 compliance

     

    These certifications reflect our commitment to meeting the industry's most demanding requirements.

    Strategic Engineering Partnership

    We function as an extension of your engineering team rather than just another vendor. This partnership model means:

    Early design collaboration to optimize manufacturability Ongoing technical support throughout development Flexible adaptation to evolving project requirements Continuous process improvement and optimization

    By engaging as a strategic partner, we help accelerate your path from concept to deployment while maintaining the highest quality standards.

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