German zimmer Sommer springs zimmer Sommer models zimmer Sommer prices

zimmer Sommer 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 on 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 chromium-vanadium alloy spring steel, and their surfaces are very smooth after machining. During use, the surface of the torsion bar must be well protected. 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.

zimmer Sommer 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 hold 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, engineering machinery, mining machinery, construction machinery, and elevators.

zimmer Sommer spring materials

Disc springs are mostly manufactured from cold-rolled or hot-rolled strip steel, plate steel, or forged blanks (forging ratio not less than 3). The materials commonly used are spring steels such as 60S2MA and 50CVA. For thicknesses less than 1.1, high-carbon steel can also be used. The performance requirements for disc spring materials are that, after heat treatment, they should possess high ultimate strength, yield limit, elastic limit, and fatigue limit, while also requiring high impact toughness, plasticity, and the highest possible yield ratio. To meet these performance requirements, high-quality cold-rolled or hot-rolled steel strips or plates are mostly used domestically and internationally. For disc springs with thickness greater than 6 mm, forged blanks are used. The steel grades are mainly medium-carbon low-alloy spring steels (silicon-manganese or chromium-vanadium spring steels) and high-quality carbon spring steels. Due to the high silicon-manganese content and low chromium-vanadium content in China, disc springs mainly use 60Si2MnA. Comparing the two, 50CrVA has better hardenability, temper stability, and impact toughness than 60Si2MnA, but 50CrVA is more expensive and suitable for applications with high fatigue requirements.

zimmer Sommer spring classification

1) ISO international standard type: ISO gas springs are the most common typical type of gas springs. All technical parameters comply 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 varieties 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 grade smaller than other types of gas springs (except T type extra-slim structure type), but the piston rod diameter is the same, so it is small in size but powerful. C type gas springs perform no worse than ISO standard type gas springs in all aspects when the working stroke requirement is not too long. 4) Extra-slim structure type: This is the most compact type of gas spring in terms of cylinder diameter. It is a piston-sealed type with an outer diameter even smaller than 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 worse than that of C type gas springs.

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