BESTOOL Air Hydraulic Pump 10 000 PSI Hydraulic Foot Pump 1/2 Gal Air Actuated The BESTOOL Air Hydraulic Pump features an internal pressure relief valve for overload protection, ensuring oil leakage prevention and hydraulic component safety. The convenient 2-stage release mechanism enables fast or metered ram return while minimizing hydraulic shock. This air-powered hydraulic pump boasts a maximum adjustable pressure of 10,000 PSI, making it suitable for all 10-ton applications. Constructed with a high-quality aviation aluminum pump core and a durable aluminum reservoir, our hydraulic ram pump is designed to withstand demanding industrial applications. The air over hydraulic pump features a user-friendly, foot-actuated design that allows for easy control and operation, saving time and effort with its powerful and adjustable pressure.The built-in internal relief valve safeguards the hydraulic components regardless of the hydraulic pressure. Designed exclusively for use with single-acting cylinders, this air hydraulic foot pump efficiently operates a wide range of industrial and construction single-acting ram applications, making it a versatile and reliable power source.