Discontinued ENTEX range of EXTENSION springs
Springmasters’ range of extension springs are a direct equivalent of the discontinued ENTEX range of extension springs.
Contact us with the Entex part number and we’ll do the hard work for you!
Springmasters Stock Extension Springs
Resistive force springs
Extension springs, also known as tension springs, apply a resistive force as the spring extends and are commonly utilised to move or return a component part. Extension springs require special ends to permit application of the load and these ends assume many forms.
Manufacture and stockist
We manufacture and stock extension springs, see the below categories and choose from the different wire diameter sizes available. Use the filter options on teh category page to find your required Extension Spring, or if you know the product code enter it on the ‘search Part No. box at the top of the page.
Taking quality control seriously
Our team of engineers and quality control personnel monitor each stage of the production of compression springs, using both computer and manual SPC systems, to ensure that this aim is achieved.
Spring Specification
- Ends: German loops, random position
- Note: All Springmasters Extension Springs are right hand coiled.
- Tolerances: All dimensions and forces conform to DIN 2095 (Grade 2) or BS 1726 Class B.
Material
- Music Wire to DIN 17223, Class C. No.1.1200 or BS 1408 CR3.
- Stainless Steel Wire to DIN 17224, No.1.14310 or BS 2056 302S26.
Surface Finish
- Music Wire = Oiled
- Stainless Steel = Self
Recommended Working Temps
- Music Wire = 120°C (max.)
- Stainless Steel = 300°C (max.)
Stock Extension Springs
Wire Dia (0.18mm-5.00mm)
Extension springs with wire diameters between 0.18mm and 5.00mm are available in music wire and stainless steel. Filter our stock list via wire diameter, outside diameter, free length and rate (N/mm).
12″ extension springs, ranging from an outside diameter of 0.092 inch to 1 inch in both stainless steel and cardon steel. Filter our stock via outside diameter, inside diameter and approximate number of coils
1 meter long extension springs are available in carbon steel and stainless steel. Filter our stock list via wire diameter and outside diameter.
Information for students and graduates.
We are starting to locate and collate a list of educational resources which we feel would be very useful to budding engineers and springmakers alike.
Please contact us if you are aware of an excellent educational web page or site about spring design and manufcture and feel it should be included in the list below.