VMC Group LLF Series Low-low Frequency Elastomeric Vibration Isolators are used in a variety of applications where space and weight are restricted such as propulsion, guidance, radar, sonar, deck systems and other sensitive systems. 

The LLF Series features a corrosion-resistant coating on metal surfaces and the elastomer design resists oils, ozone and most solvents - providing optimum durability in the majority of applications. The operating temperature range of -20⁰F to +180⁰F offers continuous operation in all weather conditions. At a weight of just 6 lbs., the LLF Series offers installation in numerous applications.

Features & Benefits

  • Static load range from 250 - 1,300 lbs. offers a wide range of application flexibility
  • Low profile design permits installation in space restricted applications
  • Failsafe design problems when used in conjunction with snubbing washer for mobile and all-attitude use
  • Rugged, all-bonded construction provides durability in extreme conditions
  • Offers an axial to radial stiffness of 1:3.5
  • Low natural frequency of 8 Hz at maximum load provides excellent attenuation of machine based disturbances
  • Typical damping ratio C/Cc = 0.1 transmissibility approximately 5:1 at resonance


  • Propulsion
  • Guidance
  • Radar
  • Sonar
  • Deck systems
  • Other sensitive systems




The engineers we employ hold the highest industry-recognized credentials in structural analysis, elastomer development and system dynamics.


We are the first ISO accredited PCA ISO-17065, third-party certification body for special seismic certification of non-structural building components and their mounting configurations by the ICC’s International Accreditation Service.

Test & Measurement

We are the only ISO 17025:2005 Accredited Seismic Simulation Test Laboratory with a triaxial shake table owned and operated by California licensed Structural engineers.

Testing Services Update
DCL now offers Nuclear Qualification and Testing services.

In partnership with Greenberry Industrial, we now offer testing services that meet the requirements of ASME NQA-1.

Call for more information.