Custom Isolator Design: Engineering, Materials, and Applications

custom isolator design is an engineering process used when standard vibration isolation products cannot adequately satisfy the load, dynamic, geometric, environmental, or seismic requirements of a particular application. Instead of selecting a mount solely from a catalog load rating, engineers evaluate how the equipment operates, how vibration is generated and transmitted, how loads are distributed through the supports, and how the isolation system will interact with the supporting structure.

This approach is particularly important for HVAC equipment, industrial machinery, precision equipment, medical and laboratory systems, marine machinery, generators, pumps, compressors, and other equipment where vibration performance affects reliability, structural response, acoustics, or operational accuracy. A properly engineered system may incorporate custom spring isolators, rubber-metal mounts, elastomeric isolators, wire rope isolators, restrained or captive isolators, acoustic hangers, floor isolation, or fabricated equipment support assemblies.

The design process typically considers static load, dynamic load, equipment center of gravity, operating speed, excitation frequency, static deflection, natural frequency, stiffness, damping, transmissibility, allowable movement, environmental exposure, and mounting geometry. For projects in seismic regions, vibration isolation must also be coordinated with equipment anchorage and seismic restraint requirements rather than treated as an independent design problem.

For U.S. construction projects, applicable requirements may involve the IBC, ASCE 7, California Building Code, project specifications, and jurisdiction-specific requirements. Healthcare facilities can introduce additional HCAI considerations for nonstructural components and their supports and attachments. HCAI's current OPM program, for example, covers preapproval of seismic designs for supports and attachments of nonstructural components, but it is not a blanket approval of products or supporting structures.

For complex applications, The Sigma Source connects vibration isolation engineering with structural analysis, BIM 3D CAD modeling, seismic calculations, and custom metal fabrication. That integrated approach allows the isolator, mounting geometry, structural attachment, and fabricated assembly to be considered as one coordinated engineering system rather than as disconnected components.

What Is Custom Isolator Design and When Is It Required?

Custom isolator design means developing a vibration isolation component or system around the actual requirements of a specific equipment application. A standard isolator generally provides predefined load ranges, dimensions, stiffness characteristics, and material configurations. That approach works well for common equipment, but it becomes less suitable when the application has unusual operating characteristics or physical constraints.

A custom solution may be required when equipment has an unusual footprint, an offset center of gravity, uneven support reactions, high dynamic forces, low excitation frequencies, limited installation space, or demanding environmental conditions. A manufacturer may also require an isolation system that integrates directly with an equipment frame, base plate, structural support, or OEM mounting arrangement.

The engineering question is therefore not simply, "How much does the equipment weigh?" The more useful questions are: How is that weight distributed? What frequencies are generated during operation? What level of vibration can be tolerated? How much movement is acceptable? What natural frequency is required? What happens during startup, shutdown, shock, or an abnormal operating condition? How will the isolator attach to the equipment and supporting structure?

For example, a 10,000-pound chiller and a 10,000-pound precision machine do not necessarily require the same isolation solution. The chiller may primarily require control of low-frequency mechanical vibration, while the precision machine may require tighter control of transmitted vibration and structural resonance. Likewise, a marine engine may require a different combination of shock resistance, corrosion resistance, and mounting geometry than an indoor industrial motor.

Custom isolators therefore represent engineered vibration control rather than simply modified hardware. The objective is to establish a predictable mechanical interface between equipment and structure while meeting performance, installation, durability, and project requirements.

How Custom Vibration Isolator Design Works

A successful custom vibration isolator begins with application data. Engineers first establish the characteristics of the equipment and the vibration problem before selecting the isolation technology.

Important equipment information can include operating weight, maximum operating weight, dimensions, mounting-point locations, center of gravity, RPM, excitation frequencies, dynamic forces, startup and shutdown behavior, and operating modes. For rotating machinery, the relationship between operating speed and excitation frequency is especially important because an isolation system can behave very differently near resonance than it does at a higher frequency ratio.

Load distribution is another critical consideration. Four mounting points do not necessarily carry equal loads simply because they are physically similar. Equipment geometry, center of gravity, frame stiffness, and support locations can produce different reactions at each mounting point. A custom design can account for these differences and establish appropriate capacity for each isolator.

The next stage is performance definition. Engineers determine required static deflection, target natural frequency, stiffness, damping characteristics, allowable displacement, and desired isolation performance. Environmental conditions are evaluated at the same time. Temperature, moisture, chemicals, UV exposure, saltwater, corrosion, and continuous-duty operation can affect material selection and service life.

The design then moves into geometry and integration. Mounting plates, brackets, isolation rails, frames, anchor locations, and equipment interfaces may need to be developed around actual project dimensions. CAD and BIM models can be used to coordinate the isolation assembly with structural framing, piping, ductwork, electrical systems, access zones, and maintenance clearances.

The final result is an engineered configuration supported by calculations, drawings, specifications, and fabrication information appropriate to the project.

How Static Deflection, Natural Frequency, and Transmissibility Affect Isolator Performance

Static deflection, natural frequency, stiffness, damping, and transmissibility are fundamental concepts in vibration isolation because they determine whether an isolator actually reduces transmitted vibration or inadvertently increases response near resonance.

For a simplified vertical spring-mass system, static deflection is related to supported weight and spring stiffness. Increasing static deflection generally corresponds to lower effective stiffness and therefore a lower natural frequency. Lower natural frequency can be beneficial when the equipment operates at a substantially higher frequency, because a larger separation between excitation frequency and isolation-system natural frequency can improve isolation.

Natural frequency is commonly represented conceptually by the relationship between stiffness and supported mass:

fn ≈ (1/2π)√(k/m)

where fn is natural frequency, k is effective stiffness, and m is supported mass. Real isolation systems can be more complex because stiffness may vary with direction, amplitude, frequency, temperature, preload, and material behavior.

Transmissibility depends strongly on the frequency ratio between excitation and natural frequency. Near resonance, vibration response can increase rather than decrease. Once the operating frequency is sufficiently above the isolation system's natural frequency, the isolator can provide meaningful attenuation of transmitted vibration.

Damping also requires careful consideration. Additional damping can reduce resonance amplification and improve transient response, but damping does not automatically mean better isolation at every operating frequency. Engineers therefore need to balance resonance control, isolation efficiency, equipment stability, shock response, and allowable movement.

Dynamic stiffness becomes particularly important for elastomeric systems because the material response can depend on frequency, temperature, amplitude, and preload. For this reason, selecting an isolator solely from static load capacity may produce an incomplete design.

Types of Custom Isolators for Equipment and Machinery

Different isolation technologies solve different engineering problems, so custom isolator design should begin with application requirements rather than with a predetermined product type.

Custom spring isolators are commonly considered for HVAC equipment, chillers, pumps, fans, generators, and other machinery where substantial static deflection and low natural frequency are useful. Springs can be configured for different load capacities and mounting arrangements, with geometry developed around the equipment and supporting structure.

Elastomeric and rubber-metal isolators provide another approach. They can combine compact geometry with inherent damping and can operate in compression, shear, or combined loading depending on the design. Rubber compounds may be selected according to temperature, environmental exposure, chemical resistance, and required mechanical behavior.

Wire rope isolators use formed cable elements to provide multidirectional vibration and shock isolation. Their geometry can be customized for equipment loads and mounting constraints, making them relevant to rugged industrial, aerospace, marine, electronics, and sensitive-equipment applications. The Sigma Source describes wire rope and other custom isolators as application-specific vibration-control solutions.

Restrained or captive isolators can be used when operational vibration isolation must coexist with controlled movement. The restraint arrangement can limit excessive displacement while maintaining the intended isolation function. Such systems require careful coordination because poorly configured restraints can introduce unwanted stiffness or create unintended vibration paths.

Other configurations include acoustic hangers, spring hangers, floor isolation pads, isolation rails, inertia bases, equipment mounting frames, and custom structural support assemblies. The correct selection depends on equipment behavior, required isolation performance, structural conditions, installation geometry, and project requirements.

Material Selection for Custom Isolation Systems

Material selection is an engineering decision because the material properties of an isolator influence stiffness, damping, durability, corrosion resistance, temperature performance, and service life.

Elastomeric systems may use natural rubber, neoprene, EPDM, or other formulated compounds. The appropriate compound depends on operating temperature, exposure to oils or chemicals, moisture, ozone, UV conditions, expected aging, and required mechanical characteristics. Hardness alone does not define complete isolator performance; engineers may also need to consider geometry, preload, dynamic behavior, and directional stiffness.

Spring isolators typically depend on carefully selected steel spring characteristics and associated metal components. Carbon steel, stainless steel, structural steel, and other alloys can be used depending on load, corrosion, fabrication, and environmental requirements. Stainless steel may be particularly relevant in marine or corrosive environments, while coated carbon or structural steel can provide practical protection in many industrial and commercial applications.

Wire rope assemblies commonly use stainless-steel or other appropriate cable constructions, with the cable diameter, number of strands, geometry, and configuration influencing load and displacement behavior.

Fabricated components may include mounting plates, brackets, base plates, frames, anchor assemblies, and structural support members. Galvanizing, powder coating, plating, or other corrosion-control methods may be specified according to the service environment.

Material selection must ultimately be evaluated as part of the entire isolation system. An elastomer with appropriate laboratory properties may not be appropriate for a particular temperature range, while an otherwise suitable steel assembly may require additional corrosion protection. Custom design allows these variables to be evaluated together instead of treating the isolator as an isolated catalog component.

Custom Isolator Design for HVAC, Industrial, Marine, and Sensitive Equipment

HVAC systems are among the most common applications for engineered vibration isolation. Air handling units, fans, pumps, chillers, cooling towers, compressors, boilers, and generators can transmit vibration into floors, roofs, structural framing, and connected services. Isolation design must account for equipment operating characteristics while maintaining appropriate connections to piping, ductwork, electrical systems, and other building services.

Industrial machinery presents additional challenges because vibration may result from rotating imbalance, reciprocating forces, gear systems, process loads, or rapidly changing operating conditions. CNC equipment, manufacturing machinery, compressors, motors, and precision production systems may require isolation characteristics tailored to their operating frequency and sensitivity.

Marine equipment introduces another combination of requirements. Marine engine mounts and shipboard isolation systems can encounter corrosion, shock, compact installation conditions, multidirectional loads, and continuous operation. Material selection and mechanical geometry therefore become especially important.

Healthcare and laboratory applications can be more sensitive because vibration may interfere with imaging, measurement, research, or other precision functions. MRI and imaging environments, laboratory instruments, semiconductor equipment, and other sensitive systems may require careful control of structure-borne vibration.

Data centers and critical facilities can similarly require coordinated equipment support where vibration control, structural attachment, equipment reliability, and continuity of operation are considered together.

In each case, the isolation objective should be defined before selecting hardware. A solution that works for a rooftop air handler may not be appropriate for precision laboratory equipment, even if the supported weights are similar. Custom isolator design provides a way to adapt the isolation mechanism, material, geometry, and support arrangement to the actual application.

Custom Isolators and Seismic Requirements

Vibration isolation and seismic restraint address different engineering conditions, but they often have to function together. Vibration isolation is primarily concerned with reducing normal operating vibration transmitted between equipment and structure. Seismic restraint addresses earthquake-induced forces, movement, anchorage, and structural load paths.

This distinction is important because an isolation system that moves freely enough to provide good vibration performance may also require a separate or integrated restraint strategy for seismic conditions. Conversely, a restraint that is too stiff or incorrectly positioned can create an unintended vibration path.

For seismic projects, engineers may evaluate equipment mass, seismic force demands, attachment conditions, available movement, anchor capacity, supporting structure, and interaction with surrounding construction. The applicable criteria depend on the adopted code, project location, seismic design parameters, equipment characteristics, occupancy, and jurisdiction.

ASCE 7 and the applicable IBC or California Building Code provide important frameworks for seismic design, while healthcare projects may involve HCAI requirements. HCAI's OPM program specifically addresses preapproval of seismic designs for supports and attachments of nonstructural components used in California healthcare construction. HCAI also emphasizes that OPM is not a product/component approval program and does not verify the adequacy of the supporting structure.

This distinction is especially important when discussing OSHPD/HCAI preapproval. A preapproved support or attachment configuration does not eliminate project-specific coordination. HCAI states that project construction documents remain necessary and that project-specific review addresses how approved details are applied, including supporting-structure capacity and scope.

For The Sigma Source, seismic coordination can therefore be considered alongside vibration isolation, structural engineering, seismic calculations, equipment anchorage, and fabricated support assemblies. The engineering objective is to preserve the intended isolation behavior while establishing an appropriate seismic load path.

Engineering Analysis, BIM/CAD, and Custom Fabrication

Custom isolator design becomes significantly more effective when engineering analysis, digital modeling, and fabrication are connected from the beginning. A vibration isolator does not exist independently of the equipment, support structure, anchors, and surrounding building systems.

Load calculations can establish vertical reactions and evaluate relevant horizontal or dynamic effects. Structural analysis may be needed to verify mounting plates, brackets, support frames, anchor conditions, and the structure receiving the equipment load. For complex geometry, finite element analysis can help evaluate stresses, deflection, local load transfer, and structural behavior of fabricated components.

BIM and 3D CAD modeling provide another layer of coordination. An isolation assembly can be modeled around the actual equipment footprint, structural framing, piping, ductwork, electrical systems, access areas, and maintenance clearances. This is particularly useful when a custom mount has to fit into a congested mechanical room or integrate with an existing structural frame.

Once the engineering geometry is established, fabrication can follow the approved design. Custom components may involve laser cutting, plasma cutting, machining, forming, stamping, welding, structural steel fabrication, and surface finishing. Keeping engineering and fabrication closely coordinated can reduce discrepancies between drawings and manufactured assemblies.

This integrated approach also supports construction coordination. Fabrication drawings can identify mounting holes, dimensions, welds, materials, finishes, anchor interfaces, and assembly requirements. BIM models can help contractors coordinate installation before components reach the jobsite.

The Sigma Source combines vibration isolation capabilities with BIM 3D CAD modeling, seismic calculations, project coordination, and custom metal fabrication. Its published engineering services identify BIM modeling, seismic calculations, structural engineering, and construction/project management as part of its broader capabilities. This allows custom isolation projects to be developed with both engineering requirements and manufacturability in view.

Custom Isolator Design and Fabrication Workflow

A disciplined workflow reduces the risk of selecting an isolation system before the actual engineering requirements are understood.

The first stage is application review. Equipment drawings, operating data, weight information, mounting locations, RPM, center of gravity, dynamic loads, environmental conditions, and project specifications should be gathered. If the vibration problem already exists, field measurements may provide valuable information about dominant frequencies and vibration amplitudes.

The second stage is engineering design. Engineers establish load requirements, evaluate isolation objectives, select an appropriate technology, determine stiffness and deflection requirements, develop mounting geometry, and assess environmental and seismic considerations.

The third stage is detailed development. CAD or BIM models can be created to coordinate the isolator with equipment and structure. Fabrication drawings can then define the physical assembly, including plates, brackets, frames, welds, anchors, finishes, and interfaces.

For unusual or high-consequence applications, prototype or first-article evaluation may be appropriate before full production. Testing requirements depend on the application, specifications, governing standards, and performance objectives.

Fabrication follows approved engineering documentation. Processes can include laser or plasma cutting, machining, forming, welding, assembly, and protective finishing. Inspection can verify dimensions, materials, fabrication quality, and compliance with approved drawings.

Installation and commissioning complete the process. Field teams need to understand orientation, mounting points, clearances, restraints, flexible connections, adjustment requirements, and allowable movement. The final system should reflect the assumptions used during engineering.

This engineering-to-fabrication workflow is particularly valuable when custom isolation is combined with structural frames, inertia bases, seismic restraints, or other fabricated assemblies.

How to Select a Custom Isolator Design for a Project

Selecting a custom isolator begins with defining the actual vibration problem rather than choosing a product based solely on equipment weight. Identify the vibration source, dominant operating frequencies, transmission path, affected receiver, and desired performance outcome. In an existing facility, field measurements can help distinguish equipment-generated vibration from structural or environmental sources.

Next, establish the equipment requirements. Obtain operating and shipping weights where relevant, dimensions, mounting-point locations, center of gravity, RPM, dynamic forces, operating modes, and manufacturer recommendations. Determine whether the equipment is rotating, reciprocating, impact-producing, precision-sensitive, or subject to transient loads.

The supporting structure must then be evaluated. Floor slabs, roofs, structural steel, inertia bases, equipment platforms, mounting plates, and anchors all form part of the load path. An isolator with adequate component capacity may still be unsuitable if the supporting structure or attachment cannot accommodate the resulting loads.

Isolation technology should be selected based on performance requirements. Spring systems may be appropriate for applications requiring substantial static deflection and low natural frequency. Elastomeric systems may provide compact geometry and damping. Wire rope systems can address multidirectional vibration and shock. Restrained systems can combine isolation with controlled movement. The selection should follow the engineering requirements rather than a predetermined product category.

Seismic and environmental conditions should be evaluated at the same time. Consider applicable seismic criteria, corrosion, temperature, moisture, chemicals, outdoor exposure, and expected service life.

Finally, review installation and maintenance. A technically effective isolator can create practical problems if it cannot be installed, inspected, adjusted, or replaced safely. The best design therefore considers the complete lifecycle from engineering and fabrication through installation and long-term operation.

What Information Is Needed for Custom Isolator Design?

A complete engineering review is easier when the project team provides both equipment information and site information. Equipment weight is necessary, but it is only one input.

Equipment Data

Useful information includes equipment dimensions, operating weight, center of gravity, mounting-point locations, RPM, excitation frequencies, dynamic loads, operating modes, manufacturer drawings, and recommended mounting arrangements. For rotating equipment, operating speed and harmonic excitation information can be particularly important.

Structural Data

The engineering team may need floor or roof construction, structural framing drawings, equipment platform details, existing mounting conditions, anchor information, inertia-base details, and available structural capacity. Existing buildings may also require field verification because actual conditions can differ from original drawings.

Project and Environmental Requirements

Project location, applicable code, seismic design criteria, environmental exposure, temperature range, corrosion conditions, required isolation performance, installation limitations, and maintenance requirements should be identified early.

Engineering Deliverables

Depending on the project, deliverables may include isolator schedules, load calculations, engineering drawings, mounting details, CAD/BIM models, fabrication drawings, structural attachment details, material specifications, installation requirements, and testing or inspection documentation.

Providing this information early can prevent redesign. It also allows the engineering team to determine whether the application can be addressed with a standard configuration or whether a genuinely custom solution is justified.

Why Custom Isolator Design Matters for Complex Engineering Projects

Custom isolator design matters because vibration control is ultimately a system-level engineering problem. Equipment behavior, isolator properties, structural support, seismic restraint, environmental exposure, fabrication geometry, and installation conditions all influence the performance of the final assembly.

A custom solution is not necessarily better simply because it is custom. The value comes from designing around requirements that a standard product cannot adequately address. If the equipment load, operating frequency, mounting geometry, environmental exposure, or seismic condition falls outside a practical standard configuration, project-specific engineering can provide a more controlled path to the required performance.

For engineers and contractors, this means evaluating the complete load path and vibration path rather than treating an isolator as an isolated accessory. For facility managers, it means considering reliability, maintenance, access, durability, and operational performance. For procurement teams, it means understanding that the lowest component price does not necessarily represent the lowest project cost if an unsuitable isolation system creates installation problems, vibration complaints, premature equipment wear, or redesign.

The Sigma Source's engineering and fabrication capabilities allow custom vibration isolation to be considered alongside structural engineering, seismic calculations, BIM/CAD coordination, and custom metal fabrication. That combination can be useful when an isolation project requires more than a catalog mount and instead involves a coordinated equipment-support assembly.

The underlying design sequence remains straightforward:

equipment behavior → vibration analysis → load requirements → isolation performance → material selection → structural attachment → seismic compatibility → BIM/CAD → fabrication → installation → verification.

Approaching custom isolator design through that sequence creates a technically defensible foundation for commercial, industrial, healthcare, marine, and infrastructure applications.

Frequently Asked Questions About Custom Isolator Design

What is custom isolator design?

Custom isolator design is the engineering development of a vibration isolation component or assembly for a specific equipment application. Instead of selecting a standard mount based only on weight, engineers consider equipment dynamics, mounting geometry, operating frequency, required stiffness, static deflection, damping, environmental conditions, structural attachment, and project requirements.

When do I need a custom vibration isolator instead of a standard mount?

A custom solution may be appropriate when standard products cannot provide the required load capacity, stiffness, natural frequency, dimensions, movement limits, environmental durability, or mounting configuration. It can also be useful when equipment has an unusual center of gravity, non-standard mounting footprint, unusual operating frequency, or combined vibration and seismic requirements.

How are custom vibration isolators engineered?

The process normally begins with equipment and application data. Engineers evaluate weight, support reactions, operating speed, excitation frequencies, center of gravity, dynamic loads, mounting locations, and environmental conditions. They then establish performance requirements and select the isolation mechanism and materials. CAD/BIM modeling, structural calculations, and fabrication drawings may follow before manufacturing and installation.

How do engineers calculate the correct isolator stiffness?

Stiffness is related to supported mass, required natural frequency, static deflection, and expected operating conditions. For a simplified spring-mass system, natural frequency depends on effective stiffness and mass. In a real application, engineers also consider load distribution, directional stiffness, preload, damping, dynamic behavior, and equipment operating characteristics.

What is the difference between static and dynamic stiffness?

Static stiffness describes the relationship between load and displacement under relatively static conditions. Dynamic stiffness reflects the response of an isolation material or assembly under dynamic loading and may vary with frequency, amplitude, temperature, preload, and other factors. This distinction is particularly important for elastomeric isolation systems, where static properties alone may not fully describe operating performance.

Can custom isolators be designed for seismic applications?

Yes, but vibration isolation and seismic restraint need to be evaluated together. An isolation system designed to move during normal operation may require restraints or captive features to control earthquake-induced displacement. The appropriate configuration depends on project-specific seismic criteria, equipment characteristics, supporting structure, anchorage, and applicable codes and specifications.

What is the difference between vibration isolation and seismic restraint?

Vibration isolation primarily reduces transmission of normal operating vibration between equipment and structure. Seismic restraint addresses forces and movements associated with an earthquake. A single project may require both, and the two functions must be coordinated so that seismic restraints do not unnecessarily compromise the intended vibration isolation performance.

Which is better for industrial equipment: spring, rubber, or wire rope isolators?

There is no universal selection because the appropriate technology depends on equipment dynamics and project conditions. Springs can provide substantial static deflection and low natural frequency. Elastomeric systems can provide compact configurations and damping. Wire rope isolators can be useful where multidirectional vibration, shock, ruggedness, or environmental durability are important. Engineering requirements should determine the selection.

Can custom isolators be designed for HVAC equipment?

Yes. HVAC applications can include air handling units, fans, pumps, chillers, cooling towers, compressors, boilers, and generators. Design considerations can include equipment weight, operating speed, low-frequency vibration, structural support, piping and duct connections, roof conditions, maintenance access, and seismic requirements.

Can custom isolators be used for hospitals, laboratories, and sensitive equipment?

Yes. Healthcare and laboratory applications may have stringent vibration and seismic requirements because excessive movement can affect imaging equipment, laboratory instruments, precision systems, and critical operations. In California healthcare facilities, applicable HCAI requirements must also be considered. HCAI identifies nonstructural equipment and systems as part of its seismic performance framework, and its OPM program addresses seismic supports and attachments for nonstructural components.

Can custom isolation systems include fabricated steel frames and mounting plates?

Yes. A custom isolation system can incorporate mounting plates, brackets, inertia bases, structural frames, isolation rails, anchor assemblies, and other fabricated components. This can be especially useful when equipment geometry does not align with existing structural framing or when several isolation points must be integrated into a single support assembly.

What information is required to start a custom isolator design project?

The most useful starting information includes equipment drawings, weight, dimensions, center of gravity, mounting points, operating speed, excitation frequencies, dynamic loads, environmental conditions, structural drawings, project location, applicable specifications, seismic criteria, and required isolation performance. Providing accurate information early allows the engineering team to determine the appropriate isolation technology and identify structural or installation constraints before detailed fabrication begins.

Conclusion: Engineering Custom Isolation Around the Application

Custom isolator design provides a structured way to address vibration-control problems that cannot be adequately resolved by selecting a standard mount from a catalog. The engineering process begins with the equipment and its operating environment, then moves through load distribution, dynamic behavior, static deflection, natural frequency, stiffness, damping, transmissibility, material selection, structural attachment, and installation requirements.

The most important consideration is the relationship between these variables. A technically appropriate isolator must support the equipment without introducing unacceptable movement, provide the required vibration performance, withstand its environmental conditions, and connect properly to the surrounding structure. Where seismic demands exist, the isolation system must also be coordinated with anchorage and restraint requirements.

This systems approach is particularly valuable for complex HVAC installations, industrial machinery, marine equipment, healthcare facilities, laboratories, data centers, precision machinery, and other applications where vibration can affect equipment reliability, structural performance, occupants, or sensitive processes.

For projects requiring custom geometry or integrated support assemblies, BIM and CAD coordination can connect engineering intent with fabrication. Custom steel, stainless steel, aluminum, wire rope, elastomeric components, mounting plates, brackets, frames, and other fabricated elements can then be developed around the approved design.

The Sigma Source brings these disciplines together through vibration isolation, seismic engineering, BIM 3D CAD modeling, structural calculations, custom fabrication, and project coordination. The result is an engineering-oriented approach to custom isolation in which the isolator is designed as part of the complete equipment-support system.

For technical teams evaluating a custom solution, the most productive starting point is a clear definition of equipment behavior, load requirements, operating frequencies, structural conditions, environmental exposure, seismic criteria, and required performance. Those inputs provide the foundation for an isolation system designed around the actual application rather than around the limitations of a standard product.