Flat link chain

Flat link chains acc. to DIN 22255 are round steel link chains with flattened vertical links and are used as conveyor chains for mining.

Accessories

measurements and weight

Nenngröße	Durchmesser	Teilung	Dicke	Rundglied	<	F-Glied	<	Gewicht
d/b₄ x t [mm]	dm [mm]	t [mm]	e max. [mm]	b₁ min. [mm]	b₂ max. [mm]	b₃ min. [mm]	b₄ max. [mm]	[kg/m]
26 x 92	26±0,8	92±0,9	30	30,1	87	30	75	13,7
30 x 108	30±0,9	108±1,1	34	34,1	99	34	87	18,0
34 x 126	34±1,0	126±1,3	38	38,1	111	38	98	22,7
38 x 126	38±1,1	126±1,3	42	42,1	123	42	111	29,3
38 x 137	38±1,1	137±1,4	42	42,1	123	42	111	28,8
38 x 146	38±1,1	146±1,5	42	42,1	123	42	111	27,6
42 x 137	42±1,1	137±1,4	48,5	48,6	139	46	115	37,0
42 x 146	42±1,1	146±1,5	48,5	48,6	139	46	115	35

Mechanical properties

DIN 22255 and JDT-HO

Nominal size	test force	test force	elongation at test force	elongation at test force	breaking force	breaking force	elongation at fracture	elongation at fracture	deflection	deflection	Charpy-V-Test	Charpy-V-Test
d x t [mm]	TF Standard [kN]	TF HO [kN]	max. Standard/HO [%]	max. Standard/HO [%]	BF Standard [kN]	BF HO [kN]	A Standard [%]	A HO [kN]	f Standard [mm]	f HO [mm]	KV Standard [J]	KV HO [J]
26 x 92	637	690	1,6	1,6	850	960	11	13	26	26	57	85
30 x 108	848	920	1,6	1,6	1130	1280	11	13	30	30	57	85
34 x 126	1090	1180	1,6	1,6	1450	1650	11	13	34	34	57	85
38 x 126	1360	1480	1,6	1,6	1820	2060	11	13	38	38	57	85
38 x 137	1360	1480	1,6	1,6	1820	2060	11	13	38	38	57	85
38 x 146	1360	1480	1,6	1,6	1820	2060	11	13	38	38	57	85
42 x 137	1660	1740	1,6	1,6	2220	2520	11	13	42	42	57	85
42 x 146	1660	1740	1,6	1,6	2220	2520	11	13	42	42	57	85

Additional information

Acc. to DIN 22252 / DIN 22255 final testing is carried out in “natural black” conditions, before any coating is applied. The breaking force and ultimate elongation values therefore apply in “natural black” condition. Each coating reduces the breaking force of the JDT chains up to 10% and the ultimate elongation by as much as 20% when compared with a chain in “nature black” condition.

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