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Extension springs


According to the design of ends, springs are divided into two types: springs without rings, that are screwing on the special screw plugs; springs with rings of different configuration. Rings of tension springs are designed for spring fixation. Construction of such springs are tended to simplify the ring shape in order to reduce spring costs. The final decision is taken by a customer. Tension springs are produced of the following shapes: cylindrical, conical, and barrel-like. As a rule, tension springs are produced of wire with the diameter 1.0 – 16.00 mm, more rarely with diameter more than 16.00 mm. Tension springs with wire diameter 19 - 20.00 mm are manufactured for locomotive current-collecting devices, lifting devices of combined machine wings, agricultural machines. Tension springs of small and medium diameters are widely used at different mechanisms.

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  • Working since 1997

Extension springs

“Ural Spring Plant” manufactures as well various tension springs.

For production of springs “Ural Spring Plant” Ltd. uses the following steel grades: ст.65-ст.85, 60Г-70Г, 55С2-60С2, 55С2А-60С2А, 50ХГА, 60С2ХА, 60С2ХФА, 51ХФА (St.65-St.85, 60G-70G, 55S2-60S2, 55S2A-60S2A, 50HGA, 60S2HA, 60S2HFA, 51HFA).

Tension springs are springs that work in tension and resist axial load straining the whole spring. At load removal, the spring recovers its initial position – it tightens. The main type of coil deformation is twisting.


Enterprise quality management system is certified against the requirements of the International standard ISO 9001:2008 by certification authority Bureau Veritas Certification.

At production of springs at Ural Spring Plant traditional technologies are used along with modern imported and home equipment that together with quality home and imported rolled metal products ensure high quality of output products.

The plant test laboratory is also equipped with up-to-date imported and home equipment. The Laboratory has a certificate of measuring equipment state estimation of a laboratory of Federal Budgetary Organization “Standardization, Metrology and Certification Centre of Bashkortostan Republic”.

We are able to cover the springs with the following coatings:
- polymeric powder coating
- paint coating (ПФ-115 (PF-115), НЦ 132 (NC 132), АФ "Щит" (AF “Shchit”))
- chemical oxidation with oiling 
- electrolytic zincing

Cost of springs depends on the following parameters:
-product configuration (parameters)
- quantity of ordered products
-product material
- terms of order


Technical characteristics

Wire diameter: 0.5 – 25.00 mm

Spring outer diameter: 6 - 200 mm

Spring length: 5.0 - 1500 mm

Coiling direction: right and left


Additional operation

  • Spring ends grinding
  • Rinsing
  • Test loading
  • Power characteristics measuring

Awards and сertificates