Humphrey (USA), founded in 1901, is an internationally renowned manufacturer of pneumatic equipment, specializing in the R&D and production of high-performance pneumatic actuators. Its cylinder products are renowned for their modular design, corrosion resistance, and high reliability, widely applied in automated production lines, machinery manufacturing, and logistics conveyor systems.
Core Design Features
Structural Optimization
• Double-acting D-type configuration: Utilizes a double-acting design driven by 4-way (or 3-way) valves to achieve piston rod extension and retraction, with greater extension force than retraction force, suitable for scenarios requiring stable bidirectional output.
• Stainless steel piston rod and cylinder body: The piston rod is crafted from precision centerless-ground stainless steel, paired with an anodized aluminum cylinder barrel, enhancing corrosion resistance by 50% for operation in harsh environments such as humidity and dust.
• Modular sealing system: Standard-equipped with fluorocarbon seals (Option F), supporting a temperature range of -20°C to +150°C, compatible with air, inert gases, and vacuum environments, with a leakage rate below 0.1%.
Functional Innovation
• Built-in piston magnet (Option M): Integrates a magnetic piston to enable real-time monitoring of piston position via Hall effect sensors or Reed switches, achieving precise end-of-stroke control and automated feedback.
• Multi-angle mounting adaptability: Offers 15 standard rod end configurations, supporting 90°/180°/270° rotation of the front head (Options X/G/L) to accommodate compact installation spaces.
• Low-friction guide design: Equipped with wear-resistant bands (Option N) and polyurethane wipers (Option W) to reduce piston motion resistance, extending service life to over 10 million cycles.









