The ER Series is a restraint assembly for floor mounted equipment consisting of welded steel interlocking assemblies which are welded or bolted securely to the equipment or the equipment bases and to the supporting structure.  The restraint assembly surfaces which engage under seismic motion are lined with resilient elastomeric pads to protect equipment, snub seismic forces and prevent metal-to-metal contact, keeping the isolation system intact during an event. Restraints are field-adjustable.

Features & Benefits

  • Capable of restraining 1.0g of force
  • Properly-sized and spaced bolt holes included for easy mounting.
  • Snubber design decelerates seismic forces
  • Compatible with spring or elastomeric vibrators


  • Air handling units
  • Fans
  • Pumps
  • Chillers
  • Air compressors
  • HVAC equipment
  • Power generation
  • Electrical transformers
  • Motors




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.