VMC Group WX Special WF Fan Construction Bases with open spring isolators are designed with wide flange members and height saving brackets. Integral motorslide rails are incorporated into the base. The depth of the wide flange beam is 1/10th of the longest member. Available with 1"- 5" deflection isolators.

VMC Group WX Special WF Fan Construction Bases are designed for fan wheel diameters from 12" - 108" and support motors up to 200hp. They are available for single width and double width fans, classes I,II & III. Bases can be fabricated without motor sliderails for use in other fan arrangements without an integral base. VMC Group WX Special WF Fan Construction Bases help maintain proper drive alignment and resist starting torque without the use of restraining snubbers.

When an equipment submittal drawing is provided to the VMC Engineering Services division, a properly designed base or rail drawing, indicating isolator model numbers is produced for customer approval. Once approved, drawings are provided to our manufacturing department for fabrication and shipment.

Features & Benefits

  • Integral motorslide rails and height saving brackets
  • Available in multiple deflections
  • Can be fabricated for fans that do not have an integral base


  • Fans




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.