Hydraulics
When precision control is required, commonly demanded by applications across heavy construction machinery and advanced industries, hydraulics are often the solution.
Hydraulics transform energy through fluids under pressure, transmitting a force through a closed circuit of valves, hoses, pumps, motors and cylinders.
Lesjöfors manufactures and supplies the hydraulic industry with state-of-the-art technical springs in all sizes and volumes, certified according to ISO standards. Regardless of the quantity and application, we offer innovative solutions for the manufacturing process.
Contact us at [email protected].
Valve Control Systems
Hydraulic valves are indispensable across many diverse industries including in industrial machinery, aerospace technology, the oil and gas sector and in heavy machinery across agriculture, mining and construction. They are part of high-pressure fluid control applications, ensuring precise regulation of hydraulic flow and pressure. These valves rely on compression springs and wave springs maintain accurate pressure control, reliable actuation, and smooth operation under extreme conditions.
We offer custom-engineered solutions for Flow Control Valves, Pressure Control Valves and Directional Control Valves.
Flow Control Valves
Used in hydraulic presses, lifting equipment, and fluid distribution systems (like hydraulic balancing valve for heating systems), these valves regulate flow rates to maintain efficiency and performance stability. Our high-precision compression and disc springs are manufactured using automated coiling, shot peening, heat treatment and washing processes, ensuring superior fatigue resistance and compliance with rigorous cleanliness requirements.
Our expertise in customization, material selection, and advanced manufacturing allows us to deliver reliable, high-performance solutions tailored to your hydraulic system requirements.
Pressure Control Valves
Found in hydraulic power units, construction machinery, and braking systems, these valves prevent system overloads and pressure spikes, e.g. in an exhaust system valve. Our coil springs are engineered for durability and reliability. Made from corrosion-resistant alloys, they undergo shot peening for enhanced strength and are rigorously tested under high-cycle loads to ensure a long service life. Each spring also passes strict cleanliness tests, arriving ready for immediate use.
Directional Control Valves
Used in hydraulic actuators, injection molding machines, and material handling systems, these valves switch fluid direction for smooth and precise movement, providing reliable actuation and precise force application for seamless hydraulic function.
Our precision springs and pressings undergo stringent dimensional inspections, load testing, and automated quality checks to guarantee optimal performance.
Hydraulic Pumps
Hydraulic pump transforms mechanical energy from a motor into hydraulic energy, creating flow and pressure in the system. The energy in the fluid is then used by the hydraulic motor and cylinder, converting hydraulic energy back into mechanical motion for industrial, automotive, and heavy-duty applications.
In hydraulic pumps, like the reciprocating piston and plunger pumps, the need for high quality springs with special performance requirements are essential for inlet and outlet valves, ensuring precise fluid regulation and reliable pressure control. Compression springs, disc springs and wave springs provide consistent force and fatigue resistance, while precision pressings and shims contribute to valve sealing and structural stability.
Our expert engineers can support you by calculating the optimal material grade and associated spring design, ensuring maximum durability and efficiency in demanding hydraulic environments.
Hydraulic Actuators
A valve actuator functions as a control gateway, regulating the opening and closing of a valve within a hydraulic system. Integrated into the valve framework, the actuator control system automates and precisely manages fluid flow, making it essential for modern industrial and mobile hydraulic applications.
Our high-precision springs play a critical role in actuator performance, providing the necessary force for smooth, controlled movement. Whether in industrial automation, energy systems, or heavy machinery, our custom compression springs, disc springs and pressings ensure reliable force application and long-term durability.
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