Coil springs - Import export

While Coiled Spring Pins are extremely versatile self-retaining fasteners that can be used for many different functions, SPIROL has designed several series of Coiled Pins to meet the nuances and performance requirements of some particular niche applications. These Coiled Spring Pins are variations of our standard product either manufactured from special material, have a special finish or undergo specific processing to meet performance, corrosion, compatibility and assembly requirements for the specific application. These pre-designed application-specific series of Coiled Pins help companies shorten the design cycle to confidently launch their product quickly to their market with a pinning solution that has been tested and proven within their assembly.

SPIROL invented the Coiled Spring Pin in 1948. Truly an engineered fasteners, the Coiled Pin is available in three duties, light, standard and heavy, to enable the designer to choose from the optimum combination of strength, flexibility and diameter to suit different host materials and application requirements. Their shock absorbing design dampens forces and vibration to prevent hole damage and prolong assembly life. Light Duty Coiled Spring Pins are generally recommended for soft, brittle or thin materials such as plastics, aluminium, die castings, ceramics, and where holes are located close to an edge of the assembly. In situations not subjected to significant loads, such as when used purely for alignment or as an axle, light duty Coiled Pins are often used because of easy installation resulting from lower insertion force.

SPIROL manufactures Coiled Spring Pins out of 316 stainless steel to meet specific application requirements. Type 316 stainless steel is similar to 302/304 stainless steel with a slightly higher nickel content and the addition of molybdenum. The molybdenum content increases the chemical resistance of this alloy greatly. 316 exhibits superior pitting resistance against sea water, acetic acid vapors, chlorides, sodium and calcium brines, hypochlorite solutions, phosphoric acid, and the sulfite liquors and sulfurous acids used in the paper and pulp industry. This alloy is also austenitic, non-magnetic and non-hardenable using conventional methods. 316 stainless steel has better mechanical properties at elevated temperatures than 302/304 and offers excellent mechanical integrity at subzero temperatures. Typical applications for SPIROL's 316 Stainless Steel Coiled Pins include the following: marine, processing equipment, industrial, oil and gas and medical.

You can rely on SPIROL to be a design partner that helps solve unique problems. Because we supply many customers with similar products in similar industries, we are able to meet most needs with our standard products at no additional cost. When the solution falls outside the normal requirements, we have the expertise and engineering personnel to solve those problems. By working with SPIROL in the design stage of your project, we will develop a solution that lowers your overall product cost, improves product quality, increases the robustness of your manufacturing process, and gets you to market faster. There are a number of common special Coiled Spring Pins that SPIROL has designed over the years to meet specific performance requirements. This includes making Coiled Pins from special materials such as 316 stainless steel, beryllium copper, and Inconel, or designing Coiled Pins to meet unique application requirements resulting in custom diameters, custom lengths, special features, etc.

SPIROL’s heavy duty & fatigue resistant Coiled Spring Pins are available in diameters ranging from 1.5mm (.062") up to 20mm (.750"). Standard materials include high carbon steel, 302/304 nickel (austenitic) stainless steel, and 420 chrome (martensitic) stainless steel. Diameters larger than 12mm (.500") are available in 6150 alloy steel. SPIROL invented the Coiled Spring Pin in 1948. Coiled Pins are available in light duty, standard duty and heavy duty to match the required strength and flexibility for each application. A pin too strong for the applied load will not flex and may damage the hole. A pin that is too flexible may fatigue prematurely within the assembly. The Coiled Pin with the optimal balance of strength, flexibility and diameter will result in the prolonged useful life of the assembly.

SPIROL's Series 600 Superflex Coiled Pin has a loosely wrapped outer coil and a diameter at 90° to the seam equal to the hole size to provide a low insertion force and enhanced flexibility after insertion. The Superflex Pin eliminates insertion problems associated with hardened holes with sharp edges. A Superflex Coiled Pin is not distorted during insertion and maintains its straightness. One example of a great application for the Superflex Pin is when the pin is inserted into a shaft with both ends exposed for engagement into a slotted clutch component.

The Series 500 Extra Light Duty Coiled Pins were specifically designed for use in soft or fragile materials. The 1½ coil formation ensures that the radial force exerted against the hole wall does not exceed the strength of the hole material to prevent deformation. These pins are also an economical solution where pin strength is not a major design consideration. Typical applications for Series 500 Extra Light Duty Pins include: hinge pins in plastic or ceramic assemblies, alignment pins, and fastening applications where the hole is close to an edge of an assembly component.

SPIROL's Series 880 Coiled Spring Pin was designed specifically for use as the hinge pin for PC board card lock and ejector clip mechanisms. The quality of the hinge is unsurpassed by other fastening methods due to the low insertion force and compression of the pin during and after installation. As with all Coiled Spring Pins, the Series 880 hinge pin for PC board card locks and ejector clips is self-retaining, and thus no secondary processes are required for retention. The Coiled Pin's uniform radial spring force results in a controlled hinge movement that remains consistent throughout the life of the assembly.

The Series 550 Cosmetic Coiled Pin was designed specifically for cosmetic cases to ensure the perfect balance of strength and flexibility. The 1-1/2 coil construction ensures that the Cosmetic Coiled Pin exerts sufficient radial force to achieve the long-term desired swing torque while protecting the plastic from excessive stresses. The use of SPIROL Series 550 Cosmetic Coiled Pin will simplify your design and manufacturing process. Uniform radial spring force results in controlled hinge movement and a hinge quality that remains consistent over time. Controlled hinge movement is achieved with wider tolerances and lower moulding costs than when a Solid Pin or cut wire is used. Finally, low insertion force and compression of the pin during installation minimises hinge stress and scrap. The net result is the prolonged useful life of the assembly.

SPIROL's Series 102 Coiled Spring Pins were designed specifically for use in automotive transmission assemblies. These transmission pins are available in standard and heavy duty to enable the designer to choose the optimum combination of strength, flexibility and diameter to suit different host materials and application requirements. All Series 102 transmission pins are 100% dimensionally controlled for consistency during assembly. Additional advantages include: • Absorbs shock and vibration • Non-interlocking • Symmetrical • Easy, trouble free assembly • Ideal for automatic installation • Global supply

SPIROL's Series 101 Headrest Coiled Spring Pins were designed specifically for use in automotive headrest assemblies. The advantages of SPIROL's headrest pins are as follows: • Absorbs shock and vibration • Increased productivity • 100% dimensional control • Symmetrical • Non-interlocking • Accommodates wide hole tolerances • Easy to install • Simplified logistics • Global supply

SPIROL's Series 100 Key Fob Coiled Spring Pins were designed specifically to secure the key to the fob. The advantages of these high-performance automotive key fob security pins are as follows: Increased productivity, easy and trouble-free assembly, and simplified logistics.

Production to order – also with special-purpose materials as required: We only produce in accordance with customer specifications. Compression springs can assume a wide variety of designs and forms. Our production facilities include compression springs with wire thicknesses in the range of 0.30 to 3.00 mm with abraded ends and in the range of 0.10 to 4.00 mm with unabraded ends. Even extremely strict tolerances regarding length and strength are adhered to in our compression spring production facility. Special-purpose materials that meet specific requirements can also be integrated into production without any problems. Wire materials: All standard spring steel wires in accordance with EN 10270. Non-ferrous wires made of copper, brass and bronze. Special alloys such as: Hasteloy, CuNi44, NbZr1, TaW2. Other materials on request.

Since the development of coil springs in turret tooling, engineers have been challenged to increase the productivity of turret presses even further. In a traditional press, the option of material type and material thickness is limited by the coil springs inability to produce a high force in a short linear distance. When this performance is necessary, coil springs will have a negative effect on the quality of the formed product and efficiency of the manufacturing process. SPIROL® Disc Springs are the solution to form thick materials, large extrusions, and more complex designs. When stacked in series, they are capable of providing a greater, more consistent stripping force than coil springs and require less space. They have become an instrumental component in the advancement of turret punch press tooling. Visit www.SPIROL.com to learn more!

DEWALT’s lead design engineer for drills was tasked with designing a high power right angle drill that is lightweight, compact, and portable. The goal with the design was to maximize performance while minimizing the size of the tool. The design would incorporate a mechanical clutch built to limit maximum torque output to 70 ft-lbs. Absent the clutch, with the huge gear reduction of 75:1, the drill would be capable of producing a lock rotor torque at the spindle of 175 ft-lbs, transmitted directly to the operator of the tool. It was determined early on that the clutching thrust required in the space available could only be achieved by a Disc Spring design. Compared to conventional coil springs, Disc Springs offer a higher load capacity in less space. Additionally, longevity and reliability is a high measure of quality for professional tools used on a daily basis. The life and performance warranty of the tool was reliant on the Disc Spring design. Visit SPIROL.