German weforma springs weforma models weforma prices

weforma springs, as elastic elements, are widely used in the suspensions of modern automobiles, including passenger cars, trucks, and off-road vehicles. Compared with leaf springs, torsion bar springs offer a series of advantages: high energy storage per unit mass, which reduces vehicle weight and saves material; since the torsion bar spring is fixed to the frame, it reduces unsprung mass, helping to improve ride smoothness; when applied to the front suspension of front-wheel-drive vehicles, the torsion bar spring can be arranged longitudinally, leaving space for the swinging half-shafts of the front drive axle. However, the manufacturing cost of torsion bars is relatively high, with strict requirements for materials and processes. In addition, torsion bar springs serve only as elastic elements and must be equipped with guiding mechanisms. Torsion bar springs are made of chrome-vanadium alloy spring steel, and their surfaces are very smooth after machining. The surface of the torsion bar must be well protected during use; typically, a layer of epoxy resin is applied to the surface of the torsion bar spring, wrapped with a layer of fiberglass cloth, coated with another layer of epoxy resin, and finally coated with asphalt and anti-rust paint to prevent collision, scratching, and corrosion, thereby extending the service life of the torsion bar spring.

weforma spring applications

Extension springs, also known as helical extension springs, generally have equal pitch and circular cross-sections. They can be used in many occasions, such as production assembly, testing, R&D, and maintenance. Extension springs occupy an important position in the global market and are widely used in fields such as national defense, marine, computer, electronics, automotive, mold, medical, biochemistry, aerospace, railway, nuclear power, wind power, thermal power, construction machinery, mining machinery, building machinery, and elevators.

weforma spring classification

1) Torsion springs: Torsion springs (torsional springs) utilize the principle of leverage, twisting or rotating elastic materials with softness and high toughness to generate significant mechanical energy. These are springs that withstand torsional deformation, and their working parts consist of coils that are either closely wound or spaced apart. The end structures of torsion springs are processed into various shapes of torsion arms, ranging from single torsion to double torsion, and even various torsion bar deformations, formed according to design requirements. Torsion springs are commonly used in balancing mechanisms in machinery and are widely applied in industrial production such as automotive, machine tools, and electrical appliances. 2) Compression springs: Compression springs are helical springs that withstand axial pressure. Springs are generally divided into equal-pitch springs and variable-pitch springs. The shapes of compression springs include cylindrical, conical, convex, concave, and a small number of non-circular shapes. There is a certain gap between the coils of compression springs; when subjected to external loads, the spring contracts and deforms, storing deformation energy. Variable-pitch springs are becoming increasingly common, no longer limited to equal-pitch springs, as they can perform different functions in different environments. 3) Carbon nanotube springs: The diameter of carbon nanotube springs can reach hundreds of micrometers, while their length can reach several centimeters. Their spinning structure has broad application prospects, with potential uses in stretchable conductors, flexible electrodes, micro strain sensors, supercapacitors, integrated circuits, solar cells, field emission sources, and energy dissipation fibers, making it possible to prepare visibly observable carbon nanotube electronic devices. They are also expected to be used in medical devices, such as tension-sensing bandages. This new structure can also be developed into multifunctional carbon nanotube fiber composites for utilization. 4) Extension springs: Extension springs (tension springs) are helical springs that withstand axial tensile force. Extension springs are generally manufactured using round cross-section materials. When not under load, the coils of extension springs are usually tightly closed with no gap. They work by utilizing the rebound force (tensile force) after stretching, used to control the movement of machine parts, store energy, measure force magnitude, etc., and are widely used in machines and instruments. Hook forms include side-hook extension springs, long-hook extension springs, British-hook extension springs, German-hook extension springs, semi-circular hook extension springs, duck-bill hook extension springs, etc. 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 achieve elastic action by adding pressurized air into a flexible sealed container, utilizing the compressibility of air. They can be roughly divided into bladder type and diaphragm type. Air springs have excellent elastic characteristics; when used in the suspension systems of high-end vehicles, they can greatly improve vehicle ride smoothness, thereby significantly enhancing driving comfort. Therefore, air springs are widely used in automobiles and railway locomotives. In addition, due to the many advantages of air springs compared to ordinary steel springs, they are also applied in some mechanical equipment and precision instruments.

weforma spring classification

1) ISO International Standard Type: ISO gas springs are the most common typical type of gas springs, with all technical parameters complying with the ISO11901 international standard for gas springs and Chinese national standards; B type gas springs also comply with the gas spring standards of companies such as FORD-WDX3560 (Ford), GM-M-150 (General Motors), and Renault (Renault). 2) Compact Structure Type: The compact structure type is also called J type gas spring, which is one of the product series of gas springs, fully named J type compact structure gas spring. J type compact structure gas spring is a type popular among mold designers. Compared with the B series gas springs, it has a shorter cylinder base length, resulting in a shorter total length, which can reduce the design height of the mold, making it one of the preferred types of gas springs for molds. 3) Ultra-Compact Type: This is the model with the shortest base length among gas springs worldwide. At the same time, its outer diameter is one size smaller than other types of gas springs (except for the T type extra-slim structure), but the piston rod diameter is the same, resulting in a small size with high force. The C type gas spring performs no worse than the ISO standard type gas spring in all aspects when the required working stroke is not too long. 4) Extra-Slim Structure Type: This is the most compact type of gas spring in terms of cylinder diameter. It features piston sealing, and its outer diameter is even smaller than that of the ultra-compact type. The working stroke of the H type gas spring series generally does not exceed 50mm, and its performance in all aspects is no inferior to that of the C type gas spring.

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