About Us

  • 1952Rudolf leaves Germany with his family and arrives in New York

  • 1959Rudolf moves to California and starts Wallner Tooling & Stamping

  • 1968Wallner’s first expanded metal machine prototype is developed

  • 1972Wallner Tooling & Stamping builds 4 expanded metal lines to produce automotive air filter outer and inner wraps

  • 1975Introduces expanded metal as a replacement for welded wire used in filter media backing

  • 1977Expac is created and becomes the supplier of HVAC material

  • 1978Land acquired in Rancho Cucamonga, CA for growth and what is to become company headquarters

  • 1980Wallner Tooling & Expac hosts a grand opening for its 16,000 sq. ft. facility

  • 1988Expac expands operations to Kennesaw, GA to support East Coast markets

  • 1990Expac merges with Wallner Tooling to form Wallner Tooling/Expac

  • 1997 Rancho Cucamonga facility expands by 24,000 sq. ft. to accommodate HVAC growth

  • 1998 Kennesaw facility expands by 23,000 sq. ft. to support continued growth of East Coast markets

  • 2001 Wallner Tooling/Expac expands to South Korea by establishing a partnership with Samkwang Electronics Group forming Samkwang Wallner Co. LTD

  • 2004 Wallner relocates to a newer building in Rancho Cucamonga to support freight logistics

  • 2007 Wallner Tooling/Expac significantly increases HVAC production capacity through a strategic acquisition

  • 2013 Wallner Tooling/Expac hosts an open house to showcase new equipment in the Diversified Products Division

  • 2014 Wallner Tooling/Expac awarded U.S. Patent No. 8,696,781 for X-Mesh

  • 2015 A second Kennesaw, GA building opens exclusively for the Diversified Products Division. Wallner Tooling/Expac rebrands its name to Wallner Expac.

  • 2016New manufacturing plant opens in El Paso to support Midwest market growth

  • 2017Wallner Expac relocates and consolidates corporate headquarters to new, larger plant in Ontario, CA

rudolf wallner - founder
rudolf wallner - founder

rudolf wallner - founder

From a small stamping house in Van Nuys, California to a worldwide corporation, founder Rudolf Wallner brought the company to where it stands today. By utilizing his mastery and skills gained from his experiences in Germany and the United States, Rudolf built a strong family business that continues to grow and diversify into new markets as well dominate others. His legacy serves as inspiration and guidance to both current and future Wallner Expac employees to embrace innovation and challenge themselves as well as the norm.

investing in the future

investing in the future

Founded more than five decades ago, we have grown to become the leading expanded metal manufacturer. Wallner Expac has evolved from a simple shop to a state-of-the-art, world class manufacturing entity with over 100,000 square feet across five locations. We attribute our success to quality craftsmanship, a highly skilled work force, a dedicated management team, and our unyielding commitment to customer satisfaction.

mission statement

mission statement

Our mission is to continually engineer and deliver innovative and environmentally sensitive solutions to a diverse range of markets worldwide.

vision statement

vision statement

Our vision is to be at the forefront of manufacturing custom solutions by promoting ideation and innovation within our company and focusing on the growth and cultivation of our people as well as our products.



Wallner Expac Strives to manufacture environmentally sensitive products in a setting that encourages all employees to pursue the unlimited opportunities for improvement in quality, productivity, and service to our customers.

We Are Committed to supply our customers with high quality, cost effective products by engineering and executing innovative solutions.

We Are Dedicated to continually strengthen the effectiveness of our Quality Management System by establishing and reviewing quality objectives.

Revision B

ethics policy

ethics policy

Wallner Expac, Inc. maintains certain policies to guide its employees with respect to standards of conduct expected in areas where improper activities could damage the Company’s reputation and otherwise result in serious adverse consequences to the Company and to employees involved. The purpose of this Policy is to set forth standards of conduct and practices with respect to certain types of payments and political contributions.
Read the entire Ethics Policy

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