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NAICS/SIC/VN Code
212399
327999
1499
3272
3292
3295
3299
23990
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Vanel Company produces compression springs from chromesilisium steel, which guarantees better endurance and greater spring rate.
Zinc coated springs
Zinc coated springs are available from stock.
It is important to note, that this kind of spring has the same parameters as a normal steel spring. This kind of springs is corrosion proof and cheaper than stainless steel.
Compression spring parameters
Physical parameters
 d (wire diameter): This parameter describes the diameter of wire used as material for spring.
 S (shaft): This parameter describes the maximum diameter of spring shaft in industrial applications. Tolerance for this parameter is (+)2%(indicative).
 Di (internal diameter): Internal diameter of a spring can be calculated by subtracting the doubled wire diameter from the external diameter of a spring. Tolerance for this parameter is (+)2%(indicative).
 De (external diameter): External diameter of a spring can be calculated by adding the doubled wire diameter to the internal diameter of a spring. Tolerance for this parameter is (+)2%(indicative).
 H (hole): This is the minimum diameter of the hole in which spring can work. Tolerance for this parameter is (+)2%(indicative).
 P (pitch): Average distance between two subsequent active coils of a spring.
 Lc (block length): Maximal length of a spring after total blocking. This parameter is shown in the picture on right. Tolerance for this parameter is (+)15%(indicative).
 Ln (allowable length): The maximum permitted length of a spring after loading. If deflection is higher it may cause plastic deformation (the nonreversible change of shape in response to an applied force). For many springs danger of deformation do not exists. In this case Ln = Lc + Sa, where Sa is the sum of minimum permissible spaces between active coils.
 L0 (free length): Free length of compression springs is measured in its uncompressed state after previous one time blocking. Tolerance for this parameter is (+)2%(indicative).
 Nr of coils: This is a total number of coils in a spring  in the picture above it is equal to six. To calculate number of active coils substract two terminating coils from total number of coils.
 R (spring rate): This parameter determines spring's resistance, while it is working. It is measured in 1 DaN/mm = 10 N/mm. Tolerance for this parameter is (+)15%(indicative).
 L1 & F1 (length at force F): Force F1 at length L1 can be calculated from equation : F1 = (L0L1) * R. Equation derrived from previous for calculating L1 : L1 = L0  F1/R.
 Grinding: Defines whether or not the ends of a spring are ground.
 Reference Number: All springs are identified by a unique reference: type . (De * 10) . (d * 100) . (L0 * 10) . Material ; for compression springs, the type is a letter "C", materials are identified by following letters described below: "A" , "I", "N" , and "S". Example: C.063.090.0100.A is a compression spring with an external diameter of 6.3 mm and a free length of 10mm, produced from 0.9mm music wire.
Materials
 A (Music Wire): Steel that conforms to the EN 102701 class SH standard.
 I (Inox steel): Inox 18/8 mark Z10 CN 18.09.
 N (Zn coated wire): Zinc coated wire for springs
Characteristics
 Ends: All compression springs have closed ends exept springs with the length 360mm.
 Spring rate: Tolerance for spring rate is (+)15%(indicative).
Description of parameters for extension springs with german hooks
Physical parameters
 d (wire diameter): This parameter describes the diameter of wire used as material for spring.
 De (external diameter): External diameter of a spring concerns both hooks and coils. Tolerance for this parameter is (+)2%(indicative).
 H (Hole): This is minimum diameter of hole in which spring can work. Tolerance for this parameter is (+)2%(indicative).
 Ln (Maximum length): Maximum acceptable extension length for a spring. It is also the maximum extension for static applications. Tolerance for this parameter is (+)15%(indicative).
 Fn (Maximal force): Maximal acceptable force which can operate on a spring. It is also the maximum force for static applications. Tolerance for this parameter is (+)15%(indicative).
 L0 (free length): Free length is measured in spring's free state. Tolerance for this parameter is (+)2%(indicative).
 Nr of coils: This is a total number of coils in a spring  in the picture above it is equal to six.
 R (Spring rate): This parameter determines spring's resistance, while it is working. It is measured in 1 DaN/mm = 10 N/mm. Tolerance for this parameter is (+)15%(indicative).
 L1 & F1 (length under charge F): The charge F1 at length L1 can be calculated using the equation : F1 = Fn  R(LnL1). Equation derived from the previous for calculating L1 = Ln  (FnF1)/R.
 Hooks: Extension springs with german hooks are produced in two versions: with hook positions of 0 degrees and 90 degrees as shown in the picture above.
 Reference Number: All springs are identified by a unique reference: type . (De * 10) . (d * 100) . (L0 * 10) . material . [X if hooks are perpendicular to each other] ; for german extension springs, type is a letter "U", materials are identified by the following letters: "A" or "I". Example: U.063.090.0100.AX is an extension spring with an external diameter of 6.3 mm and a free length 10mm, produced from 0.9mm music wire with perpendicular hooks.
Materials
 A (Music Wire): Steel that conforms to the EN 102701 class SH standard.
 I (Inox steel): Inox 18/8 mark Z10 CN 18.09.
Tolerances
 maximal force: Tolerance for the maximal force is (+)15%(indicative).
 maximal length: Tolerance for the maximal length is (+)15%(indicative).
 Spring rate: Tolerance for the spring rate is (+)15%(indicative).
Description of parameters for extension springs with english hooks
Physical parameters
 d (wire diameter): This parameter describes the diameter of wire used as material for spring.
 De (external diameter): External diameter of a spring concerns both hooks and coils. Tolerance for this parameter is (+)2%(indicative).
 H (Hole): This is minimum diameter of hole in which spring can work. Tolerance for this parameter is (+)2%(indicative).
 Ln (Maximum length): Maximum acceptable extension length for a spring. It is also the maximum extension for static applications. Tolerance for this parameter is (+)15%(indicative).
 Fn (Maximal force): Maximal acceptable force which can operate on a spring. It is also the maximum force for static applications. Tolerance for this parameter is (+)15%(indicative).
 L0 (free length): Free length is measured in spring's free state. Tolerance for this parameter is (+)2%(indicative).
 Nr of coils: This is a total number of coils in a spring  in the picture above it is equal to six.
 R (Spring rate): This parameter determines spring's resistance, while it is working. It is measured in 1 DaN/mm = 10 N/mm. Tolerance for this parameter is (+)15%(indicative).
 L1 & F1 (length under charge F): The charge F1 at length L1 can be calculated using the equation : F1 = Fn  R(LnL1). Equation derived from the previous for calculating L1 = Ln  (FnF1)/R.
 Hooks: Extension springs with English hooks have both hooks closed forming a ring. Both hooks lie in the same plane.
 Reference Number: All springs are identified by a unique reference: type . (De * 10) . (d * 100) . (L0 * 10) . material ; for english extension springs, type is a letter "T", materials are identified by the following letters: "A" or "I". Example:T.063.090.0100.A is the extension spring with the external diameter 6.3 mm and the free length 10mm, produced from 0.9 mm music wire .
Materials
 A (Music Wire): Steel that conforms to the EN 102701 class SH standard.
 I (Inox steel): Inox 18/8 mark Z10 CN 18.09.
Tolerances
 maximal force: Tolerance for the maximal force is (+)15%(indicative).
 maximal length: Tolerance for the maximal length is (+)15%(indicative).
 Spring rate: Tolerance for the spring rate is (+)15%(indicative).
Parameters for torsion springs
Physical parameters
 d (wire diameter): This parameter describes the diameter of wire used as material for spring.
 Dd (Shaft): This parameter describes maximal diameter of spring shaft in industrial applications.Tolerance for this parameter is (+)2%(indicative).
 Di (internal diameter): Internal diameter of a spring. It can be calculated by subtracting the wire diameter multiplied by 2 from the external diameter of a spring. Internal diameter in torsion springs decreases while the spring is working even up to shaft diameter. Tolerance for this parameter is (+)2%(indicative).
 De (external diameter): External diameter of a spring. It can be calculated by adding the wire diameter multiplied by 2 to the internal diameter of a spring. External diameter in torsion springs decrease while the spring is working. Tolerance for this parameter is (+)2% with tolerance (+) 0.1 mm
 L0 (Free Length): WARNING: Free Length decrease while spring is working. Tolerance for this parameter is (+)2%(indicative).
 Ls (Leg Length): It is the distance from the center axis of the coil body to the end of the torsion springs' leg. Tolerance for this parameter is (+)2%(indicative).
 An (Maximum angle): Maximum acceptable rotation angle for the spring in degrees. Tolerance for this parameter is (+)15 degrees (indicative).
 Fn (Maximum force): Maximum acceptable force that can operate at the end of torsion springs' leg. Tolerance for this parameter is (+)15%(indicative).
 Mn (Maximum torque): Maximum acceptable torque (Newton * mm). Tolerance for this parameter is (+)15%(indicative).
 R (Spring rate): This parameter determines spring's resistance, while it is working. It is measured in Newton * mm / degree. Tolerance for this parameter is (+)15%(indicative).
 A1 & F1 & M1: (angle at torque or force) The following equation calculates the angle as a function of the torque: A1 = M1/R. In order to calculate the torque from the force, we use this equation: M = F*Ls
 Leg position There are 4 types of torsion springs' leg positions: 0, 90 ,180 or 270 degrees (see picture above).
 Helix direction: A righthandwound spring loads in a counterclockwise direction. A lefthandwound spring loads in a clockwise direction. Both types are available in all sizes.
 Reference Number: All springs are identified by a unique reference: type . (De * 10) . (d * 100) . (N * 100) . For righthandwound springs, the type is a letter "D". For lefthandwound springs, the type is a letter "G". "N" stands for the number of coils. Example: D.028.020.0350 is a righthandwound torsion spring with an external diameter of 2.8mm produced from 0.9mm stainless steel wire and having 3.5 coils.
Materials
 I (Inox steel): Inox 18/8 mark Z10 CN 18.09.
Tolerances
 Leg position: (+)15 degrees
 Leg Length: (+)3 %
Parameters of conical compression springs
Physical parameters
 d (wire diameter): This parameter describes the diameter of wire used as material for spring.
 S (shaft): This parameter describes the maximum diameter of spring shaft in industrial applications. Tolerance for this parameter is (+)2%(indicative).
 De (Larger External Diameter): External diameter at large end of the spring. Tolerance for this parameter is (+)2%(indicative).
 Ds (Smaller Internal Diameter): Internal diameter at small end of the spring. Tolerance for this parameter is (+)2%(indicative)
 H (hole): This is the minimum diameter of the hole in which spring can work. Tolerance for this parameter is (+)2%(indicative).
 Lc (Block): Maximal length of a spring after total blocking. For most conical springs this value equals double wire diameter. Tolerance for this parameter is (+)2%(indicative).
 L0 (free length): Free length of compression springs is measured in its uncompressed state after previous one time blocking. Tolerance for this parameter is (+)2%(indicative).
 R (spring rate): This parameter determines spring's resistance, while it is working. It is measured in 1 DaN/mm = 10 N/mm. Tolerance for this parameter is (+)15%(indicative).
 L1 & F1 (length at force F): Force F1 at length L1 can be calculated from equation : F1 = (L0L1) * R. Equation derrived from previous for calculating L1 : L1 = L0  F1/R.
Materials
 I (Inox steel): Inox 18/8 mark Z10 CN 18.09.