Sentry - Plate heat exchanger gasket

Since its inception in 1925 as the Henszey Company, Sentry Equipment has navigated the realm of power plant components and milk evaporators. Over the decades, the company has evolved, achieving significant milestones that reflect its dedication to innovation and excellence.

In 1959, responding to the dynamic needs of the industry and clients, the Henszey Company shifted its focus to supporting power generation, marking the transition to Sentry Equipment. This change ushered in a new era in the company’s history.

In 1965, Sentry Equipment achieved a revolutionary milestone by designing, manufacturing, and installing the world’s first complete sampling system for Potomac Electric at their Maryland plant. This accomplishment represented a major advancement in sampling technology.

In the face of the widespread adoption of nuclear energy in 1980, Sentry Equipment introduced the Post-Accident Sampling System (PASS) to ensure safety during manual sampling after a nuclear incident, establishing new safety standards in the industry.

In 1986, demonstrating a commitment to employee empowerment, Dick Henszey retired and transferred ownership to the employees through an Employee Stock Ownership Plan (ESOP), making Sentry Equipment a 100% employee-owned company.

In 2003, the acquisition of Bristol Equipment expanded Sentry Equipment’s capabilities in liquid, slurry, and powder sampling with the ISOLOK product line.

In 2005, the Gustafson product line, acquired from Bayer CropScience, allowed Sentry Equipment to diversify its expertise into various industries such as cement, chemical, plastic, agriculture, and food, enhancing its bulk solid sampling capabilities.

In 2007, renewing its commitment to the Oconomowoc area, Sentry Equipment built a state-of-the-art 62,000-square-foot facility focused on safety and future growth.

The acquisition in 2010 of Aquatipro Water Chemistry Services not only expanded Sentry Equipment’s system offerings but also added robust service capabilities, now known as ProShield Lifecycle Services.

In 2011, the acquisition of Waters Equipment strengthened Sentry Equipment’s complete sample system capabilities through improved design and manufacturing.

In 2017, Sentry Equipment expanded its operations by establishing its first satellite location in Houston through the acquisition of Cobra Sampling, providing additional training and services for refineries in the area.

In 2019, significant changes came to Sentry Equipment with the acquisition of Integrity Measurement and Control (IMC) to expand its corrosion monitoring line. The company also demonstrated its commitment to manufacturing excellence by investing over $1 million in new equipment.

In 2022, Sentry Equipment renewed its commitment to infrastructure by acquiring SmartSkim, a leader in oil separation, and Rebuild-it Services Group, a wastewater clarifier team. Additionally, a new satellite location was established in Salt Lake City, reinforcing Sentry Equipment’s commitment to infrastructure and growth.

Sentry Equipment’s rich history is a testament to its continuous pursuit of innovation, safety, and expansion, solidifying its position as a leader in the industry.