Spring calculator DIN 13906

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Compression spring

Extension Spring

Torsion Spring

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Please fill in your required compression spring data
– Spring calculations according to DIN 13906
– Alcomex produces compression springs with tolerances according to EN 15800-2
– Note: If one of the calculated field turns red, please check your filled in data or contact Alcomex directly

Material

N/mm²

Shear Modulus

N/mm²

d (wire thickness)

Di (inside Diameter)

Dm (nominal diameter)

Du (outside diameter)

L0 (total length)

N/mm

F1 (Force at L1)

T1 (Tensional stress at F1)

N/mm²

F2 (Force at L2)

T2 (Tensional stress at F2)

N/mm²

Lc (Blocking length)

Tc (At blocking length)

N/mm²

% Rm at L1

% Rm at L2

% Rm at blocking

Min. Compression

T (acceptable at blocking length)

N/mm²

Index (Dm/d)

DB5

DC5

DD5

DE5

DF5

DG5

DH5

DI5

DJ5

DK5

DL5

DB6

DC6

DD6

DE6

DF6

DG6

DH6

DI6

DJ6

DK6

DL6

DB7

DC7

DD7

DE7

DF7

DG7

DH7

DI7

DJ7

DK7

DL7

DB8

DC8

DD8

DE8

DF8

DG8

DH8

DI8

DJ8

DK8

DL8

DB9

DC9

DD9

DE9

DF9

DG9

DH9

DI9

DJ9

DK9

DL9

DB10

DC10

DD10

DE10

DF10

DG10

DH10

DI10

DJ10

DK10

DL10

DB11

DC11

DD11

DE11

DF11

DG11

DH11

DI11

DJ11

DK11

DL11

DB12

DC12

DD12

DE12

DF12

DG12

DH12

DI12

DJ12

DK12

DL12

DB13

DC13

DD13

DE13

DF13

DG13

DH13

DI13

DJ13

DK13

DL13

DB14

DC14

DD14

DE14

DF14

DG14

DH14

DI14

DJ14

DK14

DL14

DB15

DC15

DD15

DE15

DF15

DG15

DH15

DI15

DJ15

DK15

DL15

DB16

DC16

DD16

DE16

DF16

DG16

DH16

DI16

DJ16

DK16

DL16

DB17

DC17

DD17

DE17

DF17

DG17

DH17

DI17

DJ17

DK17

DL17

DB18

DC18

DD18

DE18

DF18

DG18

DH18

DI18

DJ18

DK18

DL18

DB19

DC19

DD19

DE19

DF19

DG19

DH19

DI19

DJ19

DK19

DL19

DB20

DC20

DD20

DE20

DF20

DG20

DH20

DI20

DJ20

DK20

DL20

DB21

DC21

DD21

DE21

DF21

DG21

DH21

DI21

DJ21

DK21

DL21

DB24

DB25

DB26

DE24

DF24

DG24

DE28

DF28

DG28

DE31

FC6

FC7

FC8

FC9

FC10

FC11

FC12

FF6

FF14

FF15

FF17

FG9

FH6

FH14

FH15

FK23

FK24

FK25

FL14

FL15

FL17

FL23

FM23

Please fill in your required extension spring data
– Spring calculations according to DIN 13906
– Alcomex produces extension springs with tolerances according to DIN 2097-2
– Note: If one of the calculated field turns red, please check your filled in data or contact Alcomex directly

Material

Rm (N/mm²)

Shear Modulus (N/mm²)

d (wire thickness) (mm)

Di (inside Diameter) (mm)

Dm (nominal diameter) (mm)

Du (outside diameter) (mm)

Lo (total length) (mm)

Lk (body length) (mm)

c (N/mm)

Fv (pre-tension/bias) (N)

Fv (max) Automatic (N)

Fv (max) Winding bench (N)

f1 (extension) (mm)

L1 (length at f1) (mm)

F1 (force at L1) (N)

T1 (Torsional stress at F1) (N/mm²)

f2 extension (mm)

L2 (length bij f2) (mm)

F2 (force at L2) (N)

T2 (torsional stress at F2) (N/mm²)

Rm (%)

Lmax (45% Rm) (mm)

Fmax (45% Rm) (N)

Weight (kg) (kg/%)

Index (Dm/d)

AD5

AE5

AF5

AG5

AH5

AI5

AJ5

AK5

AL5

AM5

AN5

AD6

AE6

AF6

AG6

AH6

AI6

AJ6

AK6

AL6

AM6

AN6

AD7

AE7

AF7

AG7

AH7

AI7

AJ7

AK7

AL7

AM7

AN7

AD8

AE8

AF8

AG8

AH8

AI8

AJ8

AK8

AL8

AM8

AN8

AD9

AE9

AF9

AG9

AH9

AI9

AJ9

AK9

AL9

AM9

AN9

AD10

AE10

AF10

AG10

AH10

AI10

AJ10

AK10

AL10

AM10

AN10

AD11

AE11

AF11

AG11

AH11

AI11

AJ11

AK11

AL11

AM11

AN11

AD12

AE12

AF12

AG12

AH12

AI12

AJ12

AK12

AL12

AM12

AN12

AD13

AE13

AF13

AG13

AH13

AI13

AJ13

AK13

AL13

AM13

AN13

AD14

AE14

AF14

AG14

AH14

AI14

AJ14

AK14

AL14

AM14

AN14

AD15

AE15

AF15

AG15

AH15

AI15

AJ15

AK15

AL15

AM15

AN15

AD16

AE16

AF16

AG16

AH16

AI16

AJ16

AK16

AL16

AM16

AN16

AD17

AE17

AF17

AG17

AH17

AI17

AJ17

AK17

AL17

AM17

AN17

AD18

AE18

AF18

AG18

AH18

AI18

AJ18

AK18

AL18

AM18

AN18

AD19

AE19

AF19

AG19

AH19

AI19

AJ19

AK19

AL19

AM19

AN19

AD20

AE20

AF20

AG20

AH20

AI20

AJ20

AK20

AL20

AM20

AN20

AD21

AE21

AF21

AG21

AH21

AI21

AJ21

AK21

AL21

AM21

AN21

AD24

AD25

AD26

AG24

AH24

AI24

AG28

AH28

AI28

AG31

LD5

LD6

LD7

LD8

LF8

LJ6

LJ10

LK10

LL10

LM10

LN10

LO10

LP10

LJ11

LK11

LL11

LM11

LN11

LO11

LP11

LJ12

LK12

LL12

LM12

LN12

LO12

LP12

LJ13

LK13

LL13

LM13

LN13

LO13

LP13

LJ14

LK14

LL14

LM14

LN14

LO14

LP14

LJ15

LK15

LL15

LM15

LN15

LO15

LP15

LJ16

LK16

LL16

LM16

LN16

LO16

LP16

LJ17

LK17

LL17

LM17

LN17

LO17

LP17

LJ18

LK18

LL18

LM18

LN18

LO18

LP18

LJ19

LK19

LL19

LM19

LN19

LO19

LP19

FP6

FP7

FP8

FP9

FP10

FP11

FP12

FS6

FS14

FS15

FS17

FT9

FU6

FU14

FU15

FX23

FX24

FX25

FY14

FY15

FY17

FY23

FZ23

Please fill in your required torsion spring data
– Spring calculations according to DIN 13906
– Alcomex produces torsion springs with tolerances according to DIN 2194-2
– Note: If one of the calculated field turns red, please check your filled in data or contact Alcomex directly

Material

Rm (N/mm²)

E-modulus (N/mm²)

d (wire thickness) (mm)

Di (inside Diameter) (mm)

Dm (nominal diameter) (mm)

Du (outside diameter) (mm)

Lk (spring body)(mm)

c (Nmm/°)

Alpha1 (°)

M1 (Nmm)

σ1 (N/mm²)

Di1 (mm)

L1 (mm)

Alpha2 (°)

M2 (mm)

σ2 (N/mm²)

Di2 (mm)

L2 (mm)

% Rm (< 0.9)

Alpha max (°)

Mmax (90% Rm) (Nmm)

Turns ratio

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Amount

Company

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Spring calculator DIN 13906

Spring calculator DIN 13906

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