A two-shaft cylinder, or two-rod cylinder, is a pneumatic actuator with two parallel piston rods, enabling double the torque output compared to a single-shaft cylinder. Suitable for high-torque applications like jacks and presses, its working principle involves compressed air pushing the piston. Although the output torque is doubled due to the dual rods, the actual force isn't always double, depending on the specific use case.

A dual-shaft cylinder is a pneumatic device with two cylinder shafts that work simultaneously. It consists of cylinder shafts, pistons, cylinders, and connecting rods. Compressed gas from an air source fills or expels gas from the cylinder chambers, driving the pistons to move. The system ensures synchronized movement by alternately supplying and exhausting air to the chambers.

A pneumatic solenoid valve is essential in industrial automation, managing air pressure through electromagnetic control. Common problems involve incorrect operation and inadequate air supply. To solve these, confirm the power supply and wiring are secure and correct. Also, check the air supply line for normal operation and sufficient pressure. If the valve fails, examine the power, circuit, and air pressure. Likewise, if air supply is low, ensure pipelines are clear and pressures meet requirements.