A equipment rack mated with a pinion equipment creates a linear actuator that converts rotational motion into linear movement or vice versa. The pinion, a circular equipment, engages one’s teeth on the rack, a straight, or “linear,” equipment. Rotational motion put on the pinion may cause the rack to go relative the pinion; conversely, linear motion put on the rack may cause the pinion to move in accordance with the rack. In either scenario, the input motion is translated in to the opposite output motion.

Available in five different models of stroke lengths between 10mm and 30mm, it’s simple to find the appropriate rack and pinion linear actuator to your requirements. Particular stroke lengths and custom rack and pinion gearboxes can be supplied for you personally.
Rack and pinion actuators give a rotational movement made to open and close quarter-turn valves such as for example ball, butterfly, or connect valves and also for operating industrial or commercial dampers.
The rotational motion of a rack and pinion actuator is accomplished via linear movement and two gears. A circular equipment, referred to a “pinion” engages the teeth of a linear gear “bar” referred to as the “rack”.
Pneumatic actuators use pistons that are attached to the rack. As air or spring power is applied the to pistons, the rack can be “pushed” inward or “pulled” outward. This linear movement is transferred to the Gear Rack For Rack Actuator rotary pinion gear (in both directions) providing bi-directional rotation.
Rack and pinion actuators pistons can be pressurized with air, gas, or essential oil to provide the linear the motion that spins the pinion equipment. To rotate the pinion gear in the opposite direction, the atmosphere, gas, or oil must be redirected to the other sides of the piston, or make use of coil springs as the power source for rotation. Rack and pinion actuators using springs are referred to as “spring-return actuators”. Actuators that rely on opposite side pressurization of the rack are known as “direct acting”.
Most actuators are made for 100-degree travel with clockwise and counterclockwise travel adjustment for open up and closed positions. Globe standard ISO installation pad are commonly available to provide ease and versatility in direct valve installation.
Pneumatic pneumatic rack and pinion actuators are compact and save space. They are reliable, durable and provide an excellent life routine. There are plenty of brands of rack and pinion actuators out there, all with subtle distinctions in piston seals, shaft seals, spring style and body designs.
For almost twenty years we have used our engineering experience and industry experience to continually improve our items, striving to supply robust solutions and competitive prices. Designed for easy integration and reliability, our products have already been proven in a variety of industries and applications which includes chemical, pharmaceutical, food and beverage, power, coal and oil, wastewater, and dampers. We also make an effort to provide exceptional customer support to back our products and keep your downtime to the very least.
Our patented adjustable dual travel stops supply the greatest amount of control in the market at ±10 degrees upon each end of the stroke. To complement our actuators we have a complete range of control components which includes solenoid valves, limit switches, positioners, and a wide range of automation hardware.
Rack-and-pinion pneumatic actuators, also known as limited rotation cylinders, are rotary actuators used for turning, opening, closing, combining, oscillating, positioning, steering and much more mechanical features involving restricted rotation. These actuators are also frequently used for automation of quarter-convert valves, like ball or butterfly valves.

Pneumatic rack-and-pinion actuators convert the energy of compressed air through a pneumatic cylinder to an oscillating rotary motion. The clean, dried out, and processed gas needed by this actuator is usually provided via a central compressed air flow station, which often supports a range of pneumatic products in a process system.