Flat link mining chains

Flat link mining chains may replace currently used round link chains of the same diameter, without the need  of changing other assembly components. Alternatively, flat link chains enable to use lower profiles in conveyors because  the vertical links, produced according to DIN 22255 standard, are of the same height as round links, which are made acc. to  DIN 22252 standard. The latter are smaller by an order of diameter value, e.g. flat link chain 34×126  is of the height b₄ = max 94 which corresponds to round link chain 30×108 b₂ = max 97. The chain vertical links are flattened or forged. FASING has developed Technical Requirements for the chain grades that have different mechanical properties in comparison  to the ones provided in DIN 22255 standard. Upon customer’s request, flat link chains may be manufactured according to the Chinese standard MT/T 929.

 

Application
Armored Face Conveyors, Beam Stage Loaders, road headers.

 

Dimensions

Chain size d×t (p)	Pin diameter d	Pitch t=p	Round horizontal link		Flat vertical link		e max.	~ Weight
			b1 min.	b2 max.	b3 min.	b4 max.
[mm]	[mm]	[mm]	[mm]	[mm]	[mm]	[mm]	[mm]	[kg/m]
26 × 92	26 ± 0.8	92 ± 0.9	30.1	87	30	75	30	13.7
30 × 108	30 ± 0.9	108 ± 1.1	34.1	99	34	87	34	18.0
34 × 126	34 ± 1.0	126 ± 1.3	38.1	111	38	99	38	22.7
38 × 126	38 ± 1.1	126 ± 1.3	42.1	123	42	111	42	30.1
38 × 137	38 ± 1.1	137 ± 1.4	42.1	123	42	111	42	29.0
38 × 146	38 ± 1.1	146 ± 1.5	42.1	123	42	111	42	27.6
42 × 137	42 ± 1.1	137 ± 1.4	48.6	139	46	115	48.5	37.0
42 × 146	42 ± 1.1	146 ± 1.5	48.6	139	46	115	48.5	36.0
48 × 152	48 ± 1.4	152 ± 1.5	a*	a*	54	127	56	47.0

• dimension to be consulted with the producer