German LEE springs LEE models LEE prices

LEE springs are a new type of elastic component that uses high-pressure nitrogen as the working medium. They feature compact size, high spring force, long stroke, smooth operation, precision manufacturing, long service life (one million cycles), flat force-deflection curve, and no need for preloading. They perform tasks that conventional elastic components such as metal springs, rubber, and air cushions struggle to accomplish, simplifying mold design and manufacturing, facilitating mold installation and adjustment, extending mold service life, and ensuring stable product quality. They can also be configured as a nitrogen spring system to operate as part of the mold, enabling easy implementation of constant pressure and delayed action within the system, making them the most ideal next-generation elastic components with flexible performance.

LEE spring features

1) High stiffness and strong shock absorption capability; can withstand heavy loads with small deformation, suitable for applications with limited axial space. 2) Variable stiffness characteristics; these springs exhibit a wide range of nonlinear properties. 3) Using the same disc springs in different combinations allows significant variation in spring characteristics. Combinations can include face-to-face or stacked arrangements, as well as composite configurations with different thicknesses and numbers of discs. 4) In stacked arrangements, for the same deformation, the load increases with the number of springs. 5) Short stroke, heavy load, small space requirement, convenient combination, easy maintenance and replacement, economical, high safety, and long service life.

LEE spring classification

1) Torsion springs: Torsion springs (torsional springs) utilize the principle of leverage, storing substantial mechanical energy through the twisting or rotation of elastic materials with high flexibility and toughness. They withstand torsional deformation, with working coils either closely wound or spaced apart. The ends are formed into various lever arms, ranging from single to double torsion, and even various torsion bar deformations, depending on the design. Torsion springs are commonly used in balancing mechanisms in machinery and are widely applied in automotive, machine tool, and electrical industries. 2) Compression springs: Compression springs are helical springs that withstand axial compressive forces. They are generally classified into constant-pitch and variable-pitch springs. Shapes include cylindrical, conical, convex, concave, and some non-circular forms. There is a gap between coils; under external load, the spring compresses and stores energy. Variable-pitch springs are becoming more common, offering different performance in various environments compared to constant-pitch springs. 3) Carbon nanotube springs: Carbon nanotube springs can have diameters up to hundreds of micrometers and lengths up to several centimeters. Their spun structure has broad application prospects, including stretchable conductors, flexible electrodes, micro strain sensors, supercapacitors, integrated circuits, solar cells, field emission sources, and energy-dissipating fibers. This enables the production of visible carbon nanotube electronic devices and potential medical applications such as tension-sensing bandages. This novel structure can also be developed into multifunctional carbon nanotube fiber composites. 4) Extension springs: Extension springs are helical springs that withstand axial tensile forces, typically made from round wire. When unloaded, the coils are usually tightly closed with no gap. They operate using the restoring force (tension) after extension, controlling component movement, storing energy, and measuring force. Widely used in machines and instruments. Hook types include side hook, long hook, British hook, German hook, semi-circular hook, and duckbill hook. Materials include stainless steel, music wire, high-carbon steel, phosphor bronze, beryllium copper, and oil-tempered alloy spring steel. 5) Air springs: Air springs are non-metallic springs that use compressed air in a flexible sealed container to achieve elasticity through air compressibility. They are broadly classified into bladder and diaphragm types. Air springs offer excellent elastic characteristics, significantly improving ride smoothness and comfort when used in high-end vehicle suspension systems. Consequently, they are widely used in automobiles and railway locomotives. Due to their advantages over standard steel springs, they are also applied in various mechanical equipment and precision instruments.

LEE spring manufacturing process

1) Cold forming process automation capability. Cold forming machines have developed up to 12 tools. Wire in the (0.3～14) mm range can be formed in one pass on a 8-tool forming machine. Development directions for forming equipment: (1)) Increase forming speed, primarily aiming to improve equipment forming speed, i.e., production efficiency; (2)) Improve equipment durability by enhancing component precision and strengthening heat treatment effects; (3)) Add length sensors and laser distance meters to enable automatic closed-loop control of the CNC forming process. 2) Cold forming process range capability. Large wire diameter spring coiling machines can handle specifications up to 20mm, =2000MPa, with a winding ratio of 5. Cold forming processes for variable-diameter or constant-diameter Minic-Block springs and eccentric springs still have limitations. 2) Hot forming process speed capability. In China, forming in the (9~25) mm specification range is limited to CNC2-axis hot coiling machines, with a maximum speed of 17 pieces per minute. This represents a significant gap compared to developed countries. 2) Control capability for large spring hot forming processes. Due to the exclusive use of CNC2-axis hot coiling machines, shape control lacks action in three directions, resulting in lower precision. Additionally, the absence of automatic bar rotation control and adjustment mechanisms leads to lower levels of hot coiling forming capability. Consequently, spring precision and surface oxidation/decarburization levels are also lower.

Weidou Intelligent Technology specializes in selling German LEE compression springs, LEE extension springs, LEE helical springs, LEE wave springs, LEE constant force springs, LEE torsion springs, LEE bending springs, LEE disc springs, LEE ring springs, LEE leaf springs, LEE torsion bar springs, LEE tension springs, LEE retaining rings, LEE tension springs, LEE die springs. LEE original imports from Germany. Welcome inquiries and orders.