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Coiled Spring Pins are shock-absorbing fastening elements that provide flexibility, uniform strength, equal stress distribution, closer diameter tolerances, no interlocking, trouble-free automatic feeding, and they reduce costs. Heavy, standard, and light duty coiled spring pins provide combinations of strength and flexibility to meet the specific engineering objectives of your pinning applications.
SPIROL invented the coiled spring pin and its production technology 60 years ago.
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The Grooved Pin has three longitudinal grooves swaged or formed into a cylinder of material, this has the effect of increasing its diameter. In each application, installation of the grooved pin causes the grooves to compress, this compression produces outward pressure on the walls of the hole and in so doing secures location of the pin. The pin is held in position under elastic tension and therefore cannot be easily dislodged in harsh environments.
A wide variety of standard pin types are available for many applications eliminating the need for more labour intensive or complex fasteners.
The Grooved Pin range has provided fastening solutions in a number of industry sectors including: machine building, chemical equipment, manufacture, precision engineering, automotive and electrical engineering.
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A SLOTTED SPRING PIN is a headless hollow cylindrical tube having a longitudinal slot down the entire length with chamfered or round ends to aid installation. This type of pin is produced to a controlled outside diameter slightly greater than the hole in which it will be installed. Compressed as it is installed, the pin applies continuous pressure towards the sides of the hole wall. The pressure provides tension in a radial manner to prevent loosening created by vibration or shock.
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Our more than 36 years’ experience on the market for stainless steel fasteners is brought to bear with particular force in this product segment.
All of the articles with relevance to fastening technology – from the traditional screws and nuts in thousands of individual models, through washers, retaining rings and keys in many versions, right up to bolts, split pins and rivets in just as many variations – can be delivered.
Both the parts standardized in accordance with DIN or ISO and the non-standardized fastening elements (e.g. chipboard screws, mushroom head screws, washers) are available.
Stainless steel remains the material of choice for most of the Lederer customers. Hardly any other material can boast its defining properties, such as corrosion resistance, long lifespan and non-magnetizability. And not least, the optical impression made by a mirror-fi nished stainless steel fastener infl uences the choice of material more often than one would suppose.
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Our more than 36 years’ experience on the market for stainless steel fasteners is brought to bear with particular force in this product segment.
All of the articles with relevance to fastening technology – from the traditional screws and nuts in thousands of individual models, through washers, retaining rings and keys in many versions, right up to bolts, split pins and rivets in just as many variations – can be delivered.
Both the parts standardized in accordance with DIN or ISO and the non-standardized fastening elements (e.g. chipboard screws, mushroom head screws, washers) are available.
Stainless steel remains the material of choice for most of the Lederer customers. Hardly any other material can boast its defining properties, such as corrosion resistance, long lifespan and non-magnetizability. And not least, the optical impression made by a mirror-fi nished stainless steel fastener infl uences the choice of material more often than one would suppose.
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Spring Locating Pins provide an extremely compact way to apply side force to a work piece, for positioning or light clamping. The version shown here, with a case-hardened steel contact pin and a coil spring, is our most popular. A protective rubber seal around the contact pin keeps out dirt and chips. This type has the most travel, so it allows the most part-size variation.
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