PHD is a leading manufacturer of industrial automation actuators, designed to help companies across all industries optimize their manufacturing processes. Our products consist of a full line of cylinders, escapements, grippers, linear slides, rotary actuators, clamps, multi-motion actuators, switches and sensors. These actuators provide the fundamental motion to push, pull, lift, rotate, turn, grip, reach, clamp, hold, position, escape, insert, load, unload, pick, place, and orient parts or materials in your manufacturing processes. Known for robustness, precision, and extremely long life, PHD products have the attributes and performance design engineers demand.

  • Widest range of long-life, robust actuators in the industry.
  • Engineering software and internet tools to simplify and save design time.
  • Factory trained application and industry specialists ensure you a cost-effective and field-proven solution.
  • 1-3 day delivery on most products. Best in the industry!


Take a brief look at PHD from its humble beginnings to becoming a leader in industrial automation components. Included is a glimpse at PHD's products, facilities, industry focus, and customer solutions philosophy.

View More Videos

PHD's overview brochure features all standard products including engineering data, large photos, and applications examples. Request a free printed brochure, as well as other product catalogs and literature.

Request Literature


Visit Litstore


Mission Statement

PHD, Inc. creates and markets products and services for industry worldwide by offering cost effective, technologically advanced, quality solutions that enhance productivity.

Vision Statement

PHD, Inc. strives to be a profitable, technologically advanced, environmentally friendly, growing global leader of products, solutions, and services that offers discernible advantages that help customers reach their objectives.

Driving Force

Provide the customer what they need, when they need it.
PHD prides itself in its ability to provide customers the widest variety of configured automation components in industry, which are built-to-order and typically ship in 1-3 business days.


In May 1957, PHD was founded with the collective vision of its founders to manufacture a small bore cylinder that provided customers durability, reliability, strength, and rebuild ability for extended value. From this vision, PHD and the Tom Thumb® cylinder were created.

Since its humble beginnings in a garage more than 50 years ago, today PHD is a multinational, worldwide corporation with a professional distributor network serving a wide range of industries.

View Historical Timeline

About PHD