DIN 22255 Flat Link Mining Chain

TOPONE® produces Flat link chains for use in continuous conveyors in mining Complies with DIN22255 dimensions and mechanical properties. Flat link mining chains may replace currently used round link chains of the same diameter, without the need of changing other assembly components.Especially suitable for Armored Face Conveyors, Beam Stage Loaders, road headers.

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Introduction

DIN 22255 flat link mining chains can replace the currently used DIN 22252 round link chains of the same diameter without changing other assembly parts. Compared with round link chains, flat link mining has a larger contact area, which reduces the risk of friction martensite and thus increases service life.In addition, since the outer height of the flat link mining chain (DIN22255) is smaller than the outer height of the round link mining chain (DIN22252), the flat link mining chain can be used as a diameter reduced by one order of magnitude. For example: Flat link chain 42x137 is of the height c2 = max 115 which corresponds to round link chain 38x137 b2 = max 121.

Parameter

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Dimension
Chain Size	Diameter	Pitch	Round Horizontal Link		Flat Vertical Link		e max	Weight
d x p (mm)	d (mm)	P (mm)	b1 min, (mm)	b2 max. (mm)	c1 min. (mm)	c2 max. (mm)	(mm)	(kg)
26x92	26 ±0.8	92 ±0.9	30.1	87	30	75	30.0	13.7
30x108	30 ±0.9	108 ±1.1	34.1	99	34	87	34.0	18.0
34x126	34 ±1.0	126 ±1.3	38.1	111	38	99	38.0	22.7
38x126	38 ±1.1	126 ±1.3	42.1	123	42	111	42.0	30.1
38x137	38 ±1.1	137 ±1.4	42.1	123	42	111	42.0	29.0
38x146	38 ±1.1	146 ±1.5	42.1	123	42	111	42.0	27.6
42x137	42 ±1.1	137 ±1.4	48.6	139	46	115	48.5	37.0
42x146	42 ±1.1	146 ±1.5	48.6	139	46	115	48.5	36.0
48x152	48 ±1.4	152 ±1.5	62	163	54	127	56.0	47.0

Mechanical Properties
Chain Size d x p	Chain Grade	Test Force	Breaking Force min.	Elongation at test force max.	Elongation at breaking force min.	Fatigue Resistance min.
(mm)		(KN)	(KN)	(%)	(%)	(cycles)
26x92	C	637	850	1.6	11	70000
	C++	700	970	1.6	14	90000
	D	740	1060	1.4	11	90000
30x108	C	848	1130	1.6	11	70000
	C++	950	1280	1.6	14	90000
	D	990	1400	1.4	11	90000
34x126	C	1090	1450	1.6	11	70000
	C++	1200	1650	1.6	14	90000
	D	1270	1800	1.4	11	90000
38x126	C	1360	1820	1.6	11	70000
	C++	1500	2040	1.6	14	90000
	D	1590	2270	1.4	11	90000
38x137	C	1360	1820	1.6	11	70000
	C++	1500	2040	1.6	14	90000
	D	1590	2270	1.4	11	90000
38x146	C	1360	1820	1.6	11	70000
	C++	1500	2040	1.6	14	90000
	D	1590	2270	1.4	11	90000
42x137	C	1660	2220	1.6	11	70000
	C++	1800	2500	1.6	14	90000
	D	1940	2770	1.4	11	90000
42x146	C	1660	2220	1.6	11	70000
	C++	1800	2500	1.6	14	90000
	D	1940	2770	1.4	11	90000
48x152	C	1900	2900	1.6	11	70000
	C++	2350	3255	1.6	14	90000
	D	2530	3600	1.4	11	90000

Standards

！This product is not recommended for overhead lifting.

！Any surface coating will affect the mechanical properties of the chain.Please ask staff for details.

！Fatigue resistance T [cycles] and impact force KV [J] according to DIN 22255 standard

！Enhanced performance chains are not recommended for use in harsh, corrosive environments, as pitting and friction martensite may lead to operational failures.

We follow standards：

DIN 17115

Acc. to DIN 22255 or MT/T 929

DIN 50100

DIN EN ISO 148

DIN EN ISO 6506

Optional surface treatment: natural black, powder coating, black electrophoresis, electro-galvanizing, hot-dip galvanizing, Dacromet.

Ambient temperature during use:

Min.: -40 ℃

Max.: 200 ℃

If the application scenario exceeds or is lower than the recommended operating temperature, please consult the staff to see if it is feasible.

Q & A

DIN 22255 Flat Link Mining Chain

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