LORD 150 Series Plate Form Mounts for Aerospace and Defense Applications

Key Points

• LORD 150 Series Plate Form Mounts provide efficient vibration isolation and shock control with load ratings from 1-12 pounds per mount
• When loaded to rated capacity, these mounts achieve approximately 18 Hz natural frequency, offering effective isolation above 40 Hz
• Available in square or diamond configurations with uniform stress distribution for maximum service life
• Ideal for protecting sensitive aerospace and defense equipment while maintaining precise positioning

In the demanding world of aerospace and defense applications, protecting sensitive equipment from harmful vibration and shock is critical to ensuring reliable performance and longevity. The LORD 150 Series Plate Form Mounts offer a proven solution, combining sophisticated vibration isolation capabilities with robust construction designed specifically for aerospace requirements.

Design Features and Construction

The engineering behind effective vibration isolation goes far beyond simple shock absorption. Every aspect of the LORD 150 Series mounts has been carefully considered to provide predictable, reliable performance while meeting the stringent requirements of aerospace and defense applications.

Through careful material selection and precise manufacturing processes, these mounts achieve remarkable consistency in performance characteristics. This predictability is crucial for engineers who need to ensure their vibration isolation solutions will perform exactly as expected, especially in applications where equipment protection is mission-critical.

These mounts incorporate several key features that make them ideal for aerospace and defense applications:

Mount Construction

The basic construction consists of two metal plates bonded together with a specially engineered elastomer core. This sandwich-style design allows for:

• Uniform stress distribution across the mounting surface
• Controlled compression in both static and dynamic loading conditions
• Predictable performance across the full range of rated loads
• Enhanced durability through bonded construction

Material Selection

Every component is carefully chosen to meet aerospace requirements:

• Metal components: Aircraft-grade aluminum alloy
• Elastomer: Specially formulated for aerospace environments
• Surface treatments: Chromate conversion coating per MIL-DTL-5541
• Optional corrosion-resistant paint finishes available

Configuration Options

Available in both square and diamond orientations to accommodate various mounting arrangements:

• Square configuration (150APL): Traditional four-corner mounting
• Diamond configuration (150APDL): 45-degree offset mounting
• Multiple size options within each configuration

Series Overview

The LORD 150 Series encompasses a comprehensive range of plate form mounts designed to meet diverse aerospace and defense vibration control needs. Available in both square (APL) and diamond (APDL) configurations, these mounts provide identical performance characteristics in different mounting orientations to accommodate various installation requirements.

Each mount in the series is precisely engineered to handle specific load ranges while maintaining consistent isolation characteristics. The product line ranges from the 150APL-1/APDL-1 rated for 1-pound loads to the 150APL-12/APDL-12 capable of supporting 12-pound loads, with incremental options in between to allow precise matching of mount capacity to application requirements.

Performance Specifications

The following table provides detailed specifications for the complete 150 Series lineup:

Common Characteristics

All mounts in the 150 Series share several important characteristics:

• Consistent natural frequency of 18 Hz when loaded to rated capacity
• Linear load-deflection behavior through normal operating range
• Identical material construction and surface treatments
• Common mounting interface dimensions within each configuration
• Operating temperature range of -65°F to +250°F

Configuration Options

The series offers two distinct mounting configurations:

Square Configuration (LORD 150APL):

• Traditional four-corner mounting pattern
• Symmetrical load distribution
• Standard bolt pattern spacing
• Optimal for rectangular equipment bases

Diamond Configuration (LORD 150APDL):

• 45-degree offset mounting pattern
• Identical performance to APL series
• Alternative mounting flexibility
• Useful in space-constrained installations

This comprehensive range ensures engineers can select the optimal mount for their specific application while maintaining consistent performance characteristics across the entire series. The predictable scaling of spring rates with load capacity makes it straightforward to choose the appropriate mount based on equipment weight and isolation requirements.

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

Performance Characteristics

Understanding how vibration isolation components will perform under real-world conditions is crucial for aerospace and defense applications. The LORD 150 Series mounts have been extensively tested across a wide range of operating conditions to provide engineers with reliable performance data for their designs.

These mounts demonstrate consistent performance characteristics that remain stable across their rated load range and operating temperatures. This predictability allows engineers to confidently specify these components knowing they'll maintain their isolation effectiveness throughout the equipment's service life.

Load Ratings

The 150 Series offers broad application flexibility with:

• Load ratings from 1 to 12 pounds per mount
• Natural frequency of approximately 18 Hz at rated load
• Radial stiffness approximately 2-3 times axial stiffness
• Linear load-deflection characteristics through normal operating range

Isolation Effectiveness

These mounts provide excellent vibration isolation:

• Effective isolation above 40 Hz
• Controlled damping to prevent excessive amplification
• Predictable performance across temperature range
• Maintains effectiveness under combined loading conditions

Environmental Capabilities

Designed to perform reliably in aerospace environments:

• Temperature range: -65°F to +250°F
• Resistant to aerospace fluids and chemicals
• Meets applicable military specifications
• UV and ozone resistant

Application Guidelines

Successful implementation of vibration isolation solutions requires careful attention to both component selection and system integration. The LORD 150 Series mounts offer excellent performance, but achieving optimal results demands proper application of engineering principles during the design and installation phases.

By following established application guidelines, engineers can ensure their vibration isolation systems will perform as intended while maximizing service life. These guidelines draw from decades of field experience and represent best practices for achieving reliable, long-term performance.

Mounting Considerations

When installing 150 Series mounts:

• Ensure mounting surfaces are flat and parallel
• Follow recommended torque specifications
• Consider load distribution across multiple mounts
• Allow adequate clearance for deflection

Load Calculations

Proper sizing requires consideration of:

• Static weight of supported equipment
• Dynamic forces from vibration and shock
• Safety factors for unexpected loads
• Combined loading effects

System Design

For optimal system performance:

• Position mounts near corners or load points
• Balance load distribution between mounts
• Consider impact of equipment CG location
• Allow for thermal expansion

Selecting the Right Mount

Choosing the optimal vibration isolation solution requires careful consideration of multiple factors that will affect system performance. The LORD 150 Series offers multiple configurations and load ratings, giving engineers the flexibility to precisely match mount characteristics to application requirements.

The selection process must balance static and dynamic requirements while accounting for environmental conditions and installation constraints. Understanding these interrelated factors helps ensure the chosen solution will provide effective isolation throughout the equipment's operational envelope.

Several factors should guide mount selection:

Primary Selection Criteria

• Total supported weight
• Available mounting space
• Required natural frequency
• Environmental conditions
• Installation constraints

Application-Specific Considerations

• Shock requirements
• Vibration spectrum
• Temperature exposure
• Life cycle requirements

Installation and Maintenance

Even the best-engineered vibration isolation solution can fail to perform if not properly installed and maintained. The LORD 150 Series mounts are designed for straightforward installation, but attention to detail during the mounting process is crucial for achieving optimal performance.

Long-term reliability depends on both initial installation quality and ongoing maintenance practices. While these mounts are engineered for minimal maintenance requirements, regular inspection and proper care ensure they continue to provide effective isolation throughout their service life.

Installation Best Practices

Follow these guidelines for optimal results:

• Clean mounting surfaces thoroughly
• Use appropriate hardware and torque
• Verify proper orientation
• Check clearances after installation

Maintenance Requirements

These mounts require minimal maintenance:

• Periodic visual inspection
• Check for proper torque retention
• Monitor for signs of wear or damage
• Replace if showing degradation

Final Thoughts

LORD 150 Series Plate Form Mounts represent a proven solution for aerospace and defense vibration control applications. Their combination of precise engineering, robust construction, and reliable performance makes them an excellent choice for protecting sensitive equipment while maintaining positioning accuracy in demanding environments.

For assistance selecting the right mount for your application or to discuss custom requirements, contact our engineering team. We can help ensure your vibration isolation solution meets all performance requirements while maximizing long-term reliability.

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.