German fischer springs fischer models fischer prices

fischer 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 helps reduce vehicle weight and save materials; since the torsion bar spring is fixed to the frame, it reduces unsprung mass, contributing to improved 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 oscillating 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, the surface of the torsion bar spring is coated with a layer of epoxy resin, 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.

fischer spring classification

1) According to the characteristics of the load during operation, helical springs can be divided into compression, extension, and torsion types; 2) According to structural features, they can be divided into two main categories: cylindrical helical springs and variable-diameter helical springs; variable-diameter helical springs mainly bear compression loads; 3) According to shape characteristics, they can be divided into conical, volute, concave, and convex types. 4) In terms of production and use, helical springs can also be divided into large helical springs and small helical springs based on forming methods and material diameter; the former are usually hot-formed, while the latter are cold-formed. 5) Other classifications: There are many types of helical springs. By external shape, they can be divided into: ordinary cylindrical helical springs; variable-diameter helical springs. By the direction of the helix, they can be divided into: left-hand springs; right-hand springs. Variable-diameter helical springs are divided into: conical helical springs, volute helical springs, and concave helical springs. Cylindrical helical springs have a simple structure, are easy to manufacture, and are the most widely used. Their characteristic curve is linear, and they can serve as compression springs, extension springs, and torsion springs. When the load is large and radial dimensions are limited, two compression springs with different diameters can be nested together to form a combination spring.

fischer spring materials

Disc springs are mostly manufactured using cold-rolled or hot-rolled strip steel, plates, 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 a 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.

fischer 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 China's 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 choices for mold-specific gas springs. 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 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 in terms of cylinder diameter among gas springs. It uses 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.

Weidou Intelligent Technology professionally sells German fischer compression springs, fischer extension springs, fischer helical springs, fischer wave springs, fischer constant force springs, fischer torsion springs, fischer bending springs, fischer disc springs, fischer ring springs, fischer leaf springs, fischer torsion bar springs, fischer tension springs, fischer retaining rings, fischer tension springs, fischer mold springs, fischer original imports from Germany. We welcome inquiries and orders from customers.