Piston compressors are positive displacement with a very simple structure and provide cost-effective air for their uses by basic physics rules.

A piston compressor consists of crankshafts, connecting rods, cylinders, and pistons.

The crankshaft moves through a V-shaped belt by the electromotor. This rotational motion, as well as the linear movement of the piston in the cylinder, leads to the production of compressed air. This air is directed to the storage tank.

Piston compressors are available in versions one, two, three, four, or more cylinders, depending on the volume of air and pressure required by the number and size of the cylinders.
To create higher pressures, the cylinders are connected in series to perform pressure-increased operations step by step.
Most piston compressors are equipped with a tank to provide consumers with constant or uniform pressure.
When consuming compressed air, the electromotor starts when the tank's air pressure reaches a lower limit. The electromotor automatically turns off when the air pressure exceeds the upper limit.

This is done by switch pressure, and the upper and lower limit pressures are adjusted based on the pressure required by consumers.

Piston compressors are one of the most popular compressed air production technologies. They are among the most cost-effective and cheapest types of compressors among a variety of air compressors.

Piston technology compressors, which are one of the oldest types of compressors, with little cost and investment in research and development, as well as simple technology that leads to lower production costs, have gathered a wider range of manufacturers in their collection, and this has caused the buyer to have access to this product in a more competitive market compared to other compressors.

The antiquity and simplicity of the technology and lack of structural changes over the years have also affected repair and maintenance as it affects the manufacturing method.

For learning and skills in the service and maintenance of this model of compressors, due to the lack of technology changes over the years, the technicians, by understanding the basics and improving skills compared to other compressors, have easier repair and maintenance with simpler technology.

Access to a larger group of experienced technicians and competitive nature leads to reduced repair and maintenance costs.

With its antiquity and simple technology, this technology leads to an abundance of spare parts and maintenance kits.

One of the disadvantages of piston compressors is the noise of about 70 to 80 dB, which is not suitable for small places. Still, the important point that is focusing on choosing this technology is due to low investment costs, the availability of services and cheaper and more abundant parts, and the management of side effects such as noise and heat is not on the list of priorities.

To solve the noise problem, it is also possible to create a noise insulating chamber for the device, which can also be installed and exploited in a relatively farther place where the presence of the noise disturbance factor is of lower importance.

Other advantages of piston compressors include transportation and the ability to approach consumption and plumbing points and pressure drops, an easy control system, and durable and high-pressure compressed air production.

Roll Air Company is one of the oldest manufacturers of piston compressors to present and install piston compressors in various industries, including in the oil extraction industries as oil packages, automotive industries, beverage industries, gas, and petrochemical company.