This technical information has been contributed by
Lee Spring Company

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New Springs Meet Smaller Size Requirements

Mimi Compression Springs
Reported to combine strength with corrosion resistance, Bantam Mini Compression Springs from Lee Spring start at a wire diameter of 0.004 inch, just slightly thicker than a human hair
Photo courtesy of Lee Spring

PITTSFIELD, Mass--As size requirements for springs continue to shrink, Lee Spring has responded by introducing its Bantam Mini Compression Springs and adding smaller diameters to its REDUXTM Wave Spring line. The ISO 9001-certified manufacturer has also expanded its options for stock compression springs by offering wire sizes from 0.006 inch to 0.013 inch.

According to Lee Spring, its Bantam Mini Compression Springs are the company's unique response to customers' needs for miniature stock springs that combine strength with corrosion resistance. The springs start at a wire diameter of 0.004 inch, just slightly thicker than a human hair, and range up to 0.0055 inch in standard outside diameters of 0.025 inch, 0.040 inch, and 0.057 inch. In order to meet and maximize the performance needs of a potentially diverse range of applications, the company selected Elgiloy® as the alloy for Stock Bantam Springs. Bantam Mini Compression Springs are also available in custom designs in Elgiloy and other alloys.

Elgiloy, a cobalt-nickel alloy known for its high strength, is said to be 10% stronger than Type 316 Stainless Steel. It exhibits superior resistance in most corrosive environments, including acetic acid, ammonium chloride, citric acid, sodium chloride, and sodium sulfite. The material performs well in temperatures up to 850°F, and is non-magnetic. Applications for the Bantam Mini Compression Springs are reported to include medical devices, pharmaceutical delivery devices, petro-chemical processes, and the aerospace and marine industries.

Lee says that as assemblies get smaller, the demand has also grown for smaller REDUXTM Stainless Steel Wave Springs. As a result, Lee has expanded its REDUX line to include designs to fit 1/4-inch and 5/16-inch hole diameters, and has added designs in the 1/2-inch, 9/16-inch, and 5/8-inch ranges.

In addition, Lee's range of "Instrument" Series Stock Compression Springs continues to grow, as the company has added designs in wire sizes from 0.006 inch through 0.013 inch. The series includes more than 1100 products, offered in a choice of three materials: Music Wire, Type 302 Stainless, and Type 316 Stainless Steel.

Lee Spring (www.leespring.com), an ISO 9001-certifed manufacturer of stock and custom mechanical wire springs, serves diverse manufacturing markets in the United States and throughout the world. In addition to springs, the company offers extensive custom services for the production of wire forms, washers, stampings, and four-slide parts and assemblies. Lee has also ventured into thermoplastics: the company recently introduced LeePTM plastic composite springs, which combine the advantages of metal and engineered thermoplastics and are reported to be among the first springs ever made with high-performance, engineered plastic (see Plastic Composite Springs Combine Advantages of Metal and Engineered Thermoplastics).

This technical information has been contributed by
Lee Spring Company

Click on Company Name for a Detailed Profile

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